OperatiOn and parts Manual
WhisperWatt™ series
MOdel dca20spxu2
60hz generatOr
(isuzu BV-4le2 diesel engine)
Used with MLt20 series Light towers onLy
parts list nO. M1870301404
Revision #0 (01/18/13)
To find the latest revision of this
publication, visit our website at:
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
pn 49840
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repOrting safety defects
If you believe that your vehicle has a defect that could cause a crash or could
cause injury or death, you should immediately inform the National Highway
Traffic Safety Administration (NHTSA) in addition to notifying Multiquip at
1-800-421-1244.
If NHTSA receives similar complaints, it may open an investigation, and if it
finds that a safety defect exists in a group of vehicles, it may order a recall and
remedy campaign. However, NHTSA cannot become involved in individual
problems between you, your dealer, or Multiquip.
To contact NHTSA, you may either call the Vehicle Safety Hotline toll-free at
write to:
Administrator
NHTSA
1200 New Jersey Avenue S.E.
Washington, DC 20590
You can also obtain information about motor vehicle safety from
DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13) — page 3
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taBle Of cOntents
dca20spxu2 60 hz generator
Proposition 65 Warning ........................................... 2
Reporting Safety Defects......................................... 3
Table Of Contents.................................................... 4
Parts Ordering Procedures...................................... 5
Safety Information .............................................. 6-11
Specifications ........................................................ 12
Dimensions............................................................ 13
Installation ........................................................ 14-15
General Information............................................... 16
Major Components ................................................ 17
Generator Control Panel........................................ 18
Engine Control Panel........................................ 20-21
Output Terminal Panel Familiarization.............. 22-24
Load Application/Generator Output....................... 25
Output Terminal Panel Connections ...................... 26
Inspection/Setup............................................... 27-30
Generator Start-Up Procedure (Manual) ......... 31-32
Generator Start-Up Procedure (Auto) ................... 33
Generator Shut-Down Procedures ........................ 34
Maintenance..................................................... 35-38
Trailer Maintenance .......................................... 39-42
Trailer Wiring Diagram ........................................... 43
Generator Wiring Diagram..................................... 44
Engine Wiring Diagram.......................................... 45
Troubleshooting (Generator).................................. 46
Explanation Of Code In Remarks Column............. 48
Suggested Spare Parts ......................................... 49
component drawings
Generator Assembly......................................... 50-51
Control Box Assembly....................................... 52-55
Engine And Radiator Assembly........................ 56-59
Output Terminal Assembly................................ 60-61
Battery Assembly.............................................. 62-63
Muffler Assembly.............................................. 64-65
Fuel Filter Assembly......................................... 66-67
Enclosure Assembly......................................... 68-71
Rubber Seals Assembly ................................... 72-73
Nameplate and Decals Assembly .................... 74-75
Terms And Conditions Of Sale — Parts ................ 76
page 4 — DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13)
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parts Ordering prOcedures
Ordering parts has never been easier!
choose from three easy options:
Effective:
January 1st, 2006
Best Deal!
order via internet (Dealers only):
Order parts on-line using Multiquip’s SmartEquip website!
If you have an MQ Account, to obtain a Username
and Password, E-mail us at: parts@multiquip.
com.
I View Parts Diagrams
I Order Parts
I Print Specification Information
To obtain an MQ Account, contact your
District Sales Manager for more information.
Use the internet and qualify for a 5% Discount
on Standard orders for all orders which include
complete part numbers.*
to log in and save!
Order Parts
Note: Discounts Are Subject To Change
Fax your order in and qualify for a 2% Discount
on Standard orders for all orders which include
complete part numbers.*
order via Fax (Dealers only):
All customers are welcome to order parts via Fax.
Domestic (us) Customers dial:
1-800-6-PARTS-7 (800-672-7877)
Note: Discounts Are Subject To Change
Domestic (us) Dealers Call:
order via phone:
1-800-427-1244
non-Dealer Customers:
International Customers should contact
their local Multiquip Representatives for
Parts Ordering information.
Contact your local Multiquip Dealer for
parts or call 800-427-1244 for help in
locating a dealer near you.
When ordering parts, please supply:
Ì
Dealer account number
Ì
specify preferred Method of shipment:
Ì
Ì
Ì
Ì
Ì
Dealer name and address
ꢀ UPS/Fed Ex
ꢀ DHL
ꢀ Truck
I
I
Priority One
Ground
shipping address (if different than billing address)
return Fax number
I Next Day
Second/Third Day
applicable Model number
I
Quantity, part number and Description of each part
NOTICE
All orders are treated as Standard Orders and will
ship the same day if received prior to 3PM PST.
we aCCepT all MaJor CreDiT CarDs!
DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13) — page 5
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safety infOrMatiOn
Do not operate or service the equipment before reading the
entire manual. Safety precautions should be followed at all
times when operating this equipment. Failure to read and
understand the safety messages and operating instructions
could result in injury to yourself and others.
Potential hazards associated with the operation of this
equipment will be referenced with hazard symbols which
may appear throughout this manual in conjunction with
safety messages.
saFeTY Messages
The four safety messages shown below will inform you
about potential hazards that could injure you or others.The
safety messages specifically address the level of exposure
to the operator and are preceded by one of four words:
Danger, warning, CauTion or noTiCe.
saFeTY sYMBols
Danger
Indicates a hazardous situation which, if not avoided,
will result in DeaTh or serious inJurY.
warning
Indicates a hazardous situation which, if not avoided,
CoulD result in DeaTh or serious inJurY.
CauTion
Indicates a hazardous situation which, if not avoided,
CoulD result in Minor or MoDeraTe inJurY.
NOTICE
Addresses practices not related to personal injury.
page 6 — DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13)
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safety infOrMatiOn
„ never use accessories or attachments that are not
recommended by MQ Power for this equipment.Damage
to the equipment and/or injury to user may result.
general saFeTY
CauTion
„ never operate this equipment without proper protective
clothing, shatterproof glasses, respiratory protection,
hearing protection, steel-toed boots and other protective
devices required by the job or city and state regulations.
„ alwaYs know the location of the nearest
fire extinguisher.
„ alwaYs know the location of the nearest
first aid kit.
„ alwaYs know the location of the nearest
phone or keep a phone on the job site. Also, know the
phone numbers of the nearest ambulance, doctor and
fire department. This information will be invaluable in
the case of an emergency.
„ never operate this equipment when not
feeling well due to fatigue, illness or when
under medication.
„ never operate this equipment under the influence of
drugs or alcohol.
generaTor saFeTY
Danger
„ neveroperatetheequipmentinanexplosive
atmosphereornearcombustiblematerials.An
explosion or fire could result causing severe
bodily harm or even death.
„ alwaYs check the equipment for loosened threads or
bolts before starting.
„ Do noT use the equipment for any purpose other than
its intended purposes or applications.
warning
„ never disconnect any emergency or safety devices.
These devices are intended for operator safety.
Disconnection of these devices can cause severe injury,
bodily harm or even death.Disconnection of any of these
devices will void all warranties.
NOTICE
„ This equipment should only be operated by trained and
qualified personnel 18 years of age and older.
„ Whenever necessary, replace nameplate, operation and
safety decals when they become difficult read.
CauTion
„ Manufacturer does not assume responsibility for any
accident due to equipment modifications. Unauthorized
equipment modification will void all warranties.
„ never lubricate components or attempt service on a
running machine.
NOTICE
„ alwaYs ensure generator is on level ground before use.
„ alwaYs keep the machine in proper running condition.
„ Fix damage to machine and replace any broken parts
immediately.
„ alwaYs store equipment properly when it is not being
used.Equipment should be stored in a clean, dry location
out of the reach of children and unauthorized personnel
DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13) — page 7
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safety infOrMatiOn
engine saFeTY
NOTICE
Danger
„ never run engine without an air filter or with a dirty air
filter.Severe engine damage may occur.Service air filter
frequently to prevent engine malfunction.
„ The engine fuel exhaust gases contain poisonous carbon
monoxide. This gas is colorless and odorless, and can
cause death if inhaled.
„ never tamper with the factory settings
of the engine or engine governor. Damage
to the engine or equipment can result
if operating in speed ranges above the
maximum allowable.
„ The engine of this equipment
requires an adequate free
flow of cooling air. never
operate this equipment in
any enclosed or narrow area
where free flow of the air is
restricted. If the air flow is
restricted it will cause injury to people and property and
serious damage to the equipment or engine.
„ Wet stacking is a common problem with diesel engines
which are operated for extended periods with light or
no load applied.When a diesel engine operates without
sufficient load (less than 40% of the rated output), it will
not operate at its optimum temperature. This will allow
unburned fuel to accumulate in the exhaust system,
which can foul the fuel injectors, engine valves and
exhaust system, including turbochargers, and reduce
the operating performance.
warning
„ Do noT place hands or fingers inside engine
compartment when engine is running.
In order for a diesel engine to operate at peak efficiency,
it must be able to provide fuel and air in the proper ratio
and at a high enough engine temperature for the engine
to completely burn all of the fuel.
„ never operate the engine with heat shields or
guards removed.
„ Keep fingers, hands hair and clothing away
from all moving parts to prevent injury.
Wet stacking does not usually cause any permanent
damage and can be alleviated if additional load is
applied to relieve the condition.It can reduce the system
performance and increase maintenance. Applying an
increasing load over a period of time until the excess
fuel is burned off and the system capacity is reached
usually can repair the condition. This can take several
hours to burn off the accumulated unburned fuel.
„ Do noT remove the radiator cap while the
engine is hot. High pressure boiling water
will gush out of the radiator and severely
scald any persons in the general area of
the generator.
„ Do noT remove the coolant drain plug while the engine
is hot. Hot coolant will gush out of the coolant tank and
severely scald any persons in the general area of the
generator.
„ State Health Safety Codes and Public Resources
Codes specify that in certain locations, spark arresters
must be used on internal combustion engines that use
hydrocarbon fuels.A spark arrester is a device designed
to prevent accidental discharge of sparks or flames
from the engine exhaust. Spark arresters are qualified
and rated by the United States Forest Service for this
purpose. In order to comply with local laws regarding
spark arresters, consult the engine distributor or the
local Health and Safety Administrator.
„ Do noT remove the engine oil drain plug while the
engine is hot. Hot oil will gush out of the oil tank and
severely scald any persons in the general area of the
generator.
CauTion
„ never touch the hot exhaust manifold,
muffler or cylinder.Allow these parts to cool
before servicing equipment.
page 8 — DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13)
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safety infOrMatiOn
„ Make sure the hitch and coupling of the towing vehicle
are rated equal to, or greater than the trailer “gross
vehicle weight rating.”
Fuel saFeTY
Danger
„ Do noT start the engine near spilled fuel or combustible
fluids. Diesel fuel is extremely flammable and its vapors
can cause an explosion if ignited.
„ alwaYs inspect the hitch and coupling for wear. never
tow a trailer with defective hitches, couplings, chains, etc.
„ Check the tire air pressure on both towing vehicle and
trailer. Trailer tires should be inflated to 50 psi cold.
Also check the tire tread wear on both vehicles.
„ alwaYs refuel in a well-ventilated area, away from
sparks and open flames.
„ alwaYs use extreme caution when working with
flammable liquids.
„ alwaYs make sure the trailer is equipped with a safety
chain.
„ Do noT fill the fuel tank while the engine is running
or hot.
„ alwaYs properly attach trailer’s safety chains to towing
vehicle.
„ Do noT overfill tank, since spilled fuel could ignite if it
comes into contact with hot engine parts or sparks from
the ignition system.
„ alwaYs make sure the vehicle and trailer directional,
backup, brake and trailer lights are connected and
working properly.
„ Store fuel in appropriate containers, in well-ventilated
areas and away from sparks and flames.
„ DOT Requirements include the following:
• Connect and test electric brake operation.
„ never use fuel as a cleaning agent.
• Secure portable power cables in cable tray with tie
wraps.
„ Do noT smoke around or near the
equipment. Fire or explosion could result
from fuel vapors or if fuel is spilled on a
hot engine.
„ The maximum speed for highway towing is55 Mphunless
posted otherwise.Recommended off-road towing is not to
exceed 15 Mph or less depending on type of terrain.
Towing saFeTY
„ Avoid sudden stops and starts.This can cause skidding,
or jack-knifing. Smooth, gradual starts and stops will
improve towing.
CauTion
„ Check with your local county or state safety
towing regulations, in addition to meeting
Department of Transportation (DOT)
SafetyTowing Regulations, before towing
your generator.
„ Avoid sharp turns to prevent rolling.
„ Trailer should be adjusted to a level position at all times
when towing.
„ Raise and lock trailer wheel stand in up position when
towing.
„ Refer to MQ Power trailer manual for additional safety
information.
„ Place chock blocks underneath wheel to prevent rolling
while parked.
„ In order to reduce the possibility of an accident while
transporting the generator on public roads, alwaYs
make sure the trailer that supports the generator and
the towing vehicle are mechanically sound and in good
operating condition.
„ Place support blocks underneath the trailer’s bumper
to prevent tipping while parked.
„ Use the trailer’s swivel jack to adjust the trailer height to
a level position while parked.
„ alwaYs shutdown engine before transporting
DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13) — page 9
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safety infOrMatiOn
„ Make sure power cables are securely connected to the
generator’s output receptacles. Incorrect connections
may cause electrical shock and damage to the
generator.
eleCTriCal saFeTY
Danger
„ Do noT touch output terminals during
operation. Contact with output terminals
duringoperationcancauseelectrocution,
electrical shock or burn.
NOTICE
„ alwaYs make certain that proper power or extension
cord has been selected for the job. See Cable Selection
Chart in this manual.
„ The electrical voltage required to
operate the generator can cause severe
grounding safety
injury or even death through physical contact with live
circuits. Turn generator and all circuit breakers oFF
before performing maintenance on the generator or
making contact with output terminals.
Danger
„ alwaYs make sure that electrical circuits are properly
grounded to a suitable earth ground (ground rod) per
the National Electrical Code (NEC) and local codes
before operating generator. severe injury or death by
electrocution can result from operating an ungrounded
generator.
„ never insert any objects into the output
receptacles during operation. This is
extremely dangerous.The possibility exists
of electrical shock, electrocution or
death.
„ never use gas piping as an electrical ground.
„ Backfeed to a utility system can cause
electrocution and/or property damage.
never connect the generator to a
building’s electrical system without
a transfer switch or other approved
device. All installations should be
performed by a licensed electrician in accordance with
all applicable laws and electrical codes. Failure to do so
could result in electrical shock or burn, causing serious
injury or even death.
power Cord/Cable safety
Danger
„ never let power cords or cables lay in water.
„ never stand in water while AC power from the
generator is being transferred to a load.
„ never use damaged or worn cables or cords when
connecting equipment to generator. Inspect for cuts in
the insulation.
„ never grab or touch a live power
cord or cable with wet hands. The
possibility exists of electrical shock,
electrocution or death.
page 10 — DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13)
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safety infOrMatiOn
BaTTerY saFeTY
environMenTal saFeTY
Danger
NOTICE
„ Do noT drop the battery. There is a possibility that the
battery will explode.
„ Dispose of hazardous waste properly.
Examples of potentially hazardous waste
are used motor oil, fuel and fuel filters.
„ Do noT expose the battery to open flames,
sparks, cigarettes, etc.The battery contains
combustible gases and liquids. If these
gases and liquids come into contact with a
flame or spark, an explosion could occur.
„ Do noT use food or plastic containers to
dispose of hazardous waste.
„ Do noT pour waste, oil or fuel directly onto the ground,
down a drain or into any water source.
warning
„ alwaYswearsafetyglasseswhenhandling
the battery to avoid eye irritation.The battery
contains acids that can cause injury to the
eyes and skin.
„ Use well-insulated gloves when picking up the battery.
„ alwaYs keep the battery charged. If the battery is not
charged, combustible gas will build up.
„ alwaYs recharge the battery in a well-ventilated
environmenttoavoidtheriskofadangerousconcentration
of combustible gasses.
„ If the battery liquid (dilute sulfuric acid) comes into
contact with clothing or skin, rinse skin or clothing
immediately with plenty of water.
„ If the battery liquid (dilute sulfuric acid) comes into
contact with eyes, rinse eyes immediately with plenty
of water and contact the nearest doctor or hospital to
seek medical attention.
CauTion
„ alwaYs disconnect the negaTive battery terminal
before performing service on the generator.
„ alwaYs keep battery cables in good working condition.
Repair or replace all worn cables.
DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13) — page 11
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specificatiOns
Table 1. generator specifications
DCA-20SPXU2
Model
Type
Revolving field, self ventilated,
open protected type synchronous generator
armature Connection
phase
Series
Single-Phase 3-Wire
22 kW (27.5 kVA)
20 kW (25.0 kVA)
120/240V
standby output
prime output
voltage
Frequency
60 Hz
speed
1800 rpm
power Factor
aux. aC power
1.0
Single Phase, 60 Hz
sound level db (a) full load
at 23 ft. (7 meters)
63
weight (no Fuel)
1,412 lbs. (640 kg.)
2,012 lbs. (913 kg.)
weight (Fuel)
Table 2. engine specifications
Model
Type
ISUZU BV-4LE2 Tier 4i
4 cycle, water-cooled, direct injection, turbo-charged
4 cylinders
no. of Cylinders
Bore x stroke
Displacement
rated output
starting
3.34 in. x 3.77 in. (85 mm x 96 mm)
133 cu. in. (2,179 cc)
34.3 HP/1800 RPM
Electric
Coolant Capacity
lube oil Capacity
Fuel Type
1.74 gal. (6.6 liters)
2.25 gal. (8.5 liters)
#2 Diesel Fuel, Low Sulfur Diesel Fuel Only
100 gal. (379 liters)
Fuel Tank Capacity
1.66 gal. (6.3 L)/hr at full load
1.21 gal. (4.6 L)/hr at 3/4 load
Fuel Consumption
Battery
0.85 gal. (3.2 L)/hr at 1/2 load
0.58 gal. (2.2 L)/hr at 1/4 load
12V 53Ah x 1
page 12 — DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13)
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diMensiOns
B
C
D
TOP VIEW
E
A
20
SIDE VIEW
F
FRONT VIEW
Figure 1. Dimensions
Denyo
G
Table 3. Dimensions
reference
letter
Dimension in. (mm)
reference letter
Dimension in. (mm)
A
B
C
D
21.06 in. (535 mm.)
21.06 in. (535 mm.)
24.21 in. (615 mm.)
26.38 in. (670 mm.)
F
G
H
72.83 in. (1,850 mm.)
39.37 in. (1,000 mm.)
29.53 in. (750 mm.)
H
E
25.00 in. (635 mm.)
DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13) — page 13
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installatiOn
GENERATOR
GROUND LUG
GROUND ROD FOR
EARTH GROUND.
CONNECT TO BUILDING
GROUND IF
APPLICABLE
GROUND CABLE
REFERENCE
NEC 250-83 (C)
(MINIMUM)
’
8
Figure 2. Typical Generator Grounding Application
page 14 — DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13)
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installatiOn
ouTDoor insTallaTion
generaTor grounDing
Install the generator in a area that is free of debris,
bystanders, and overhead obstructions. Make sure the
generator is on secure level ground so that it cannot slide
or shift around. Also install the generator in a manner so
that the exhaust will not be discharged in the direction of
nearby homes.
To guard against electrical shock and possible damage to
the equipment, it is important to provide a good earTh
ground (Figure 2).
Article 250 (Grounding) of the National Electrical Code
(NEC) provides guide lines for proper grounding and
specifies that the cable ground shall be connected to the
grounding system of the building as close to the point of
cable entry as practical.
The installation site must be relatively free from moisture
and dust.All electrical equipment should be protected from
excessive moisture. Failure to do will result in deterioration
of the insulation and will result in short circuits and
grounding.
NEC articles 250-64(b) and 250-66 set the following
grounding requirements:
1. Use one of the following wire types to connect the
generator to earth ground.
Foreign materials such as dust, sand, lint and abrasive
materials have a tendency to cause excessive wear to
engine and alternator parts.
a. Copper - 8 AWG (5.3 mm2) or larger.
b. Aluminum - 6 AWG (8.4 mm2) or larger.
CauTion
Pay close attention to ventilation when operating the
generator inside tunnels and caves.The engine exhaust
contains noxious elements. Engine exhaust must be
routed to a ventilated area.
2. When grounding the generator (Figure 2) connect the
ground cable between the lock washer and the nut on
the generator and tighten the nut fully. Connect the
other end of the ground cable to earth ground.
3. NEC article 250-52(c) specifies that the earth ground rod
should be buried a minimum of 8 ft. into the ground.
inDoor insTallaTion
Exhaust gases from diesel engines are extremely
poisonous. Whenever an engine is installed indoors the
exhaust fumes must be vented to the outside. The engine
should be installed at least two feet from any outside wall.
Using an exhaust pipe which is too long or too small can
cause excessive back pressure which will cause the engine
to heat excessively and possibly burn the valves.
NOTICE
When connecting the generator to any buildings
electrical system alwaYs consult with a licensed
electrician.
MounTing
The generator must be mounted on a solid foundation (such
as concrete) and set firmly on the foundation to isolate
vibration of the generator when it is running.The generator
must set at least 6 inches above the floor or grade level (in
accordance to NFPA 110, Chapter 5-4.1).Do noT remove
the metal skids on the bottom of the generator. They are
to resist damage to the bottom of the generator and to
maintain alignment.
DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13) — page 15
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general infOrMatiOn
generaTor
open DelTa exCiTaTion sYsTeM
The MQ Power Model DCA20SPXU2 generator (Figure 3)
is a high quality portable (requires a trailer for transport)
power source for telecom sites, lighting facilities, power
tools, submersible pumps and other industrial and
construction machinery.
This generator is equipped with the state of the art “open-
Delta” excitation system. The open delta system consist
of an electrically independent winding wound among
stationary windings of the AC output section.
There are four connections of the open delta A, B, C and
D. During steady state loads, the power from the voltage
regulator is supplied from the parallel connections of A to
B, A to D, and C to D. These three phases of the voltage
input to the voltage regulator are then rectified and are the
excitation current for the exciter section.
engine panel
„ Panel Light
„ Panel Light Switch
„ Fuel Filter Water Level Alarm Lamp
„ Auto ON/OFF Engine Controller (MPEC) Switch
„ Fuel Guage
„ Oil Pressure Gauge
„ Water Temperature Guage
„ Tachometer Guage
When a heavy load, such as a motor starting or a short
circuit occurs, the automatic voltage regulator (AVR)
switches the configuration of the open delta to the series
connection of B to C. This has the effect of adding the
voltages of each phase to provide higher excitation to the
exciter section and thus better voltage response during the
application of heavy loads.
„ Charging Ammeter Guage
generaTor ConTrol panel
The “Generator Control Panel” is provided with the following:
„ Frequency Meter (Hz)
„ AC Ammeter (Amps)
„ AC Voltmeter (Volts)
The connections of the AVR to the AC output windings are
for sensing only. No power is required from these windings.
The open-delta design provides virtually unlimited excitation
current, offering maximum motor starting capabilities.The
excitation does not have a “fixed ceiling” and responds
according the demands of the required load.
„ Ammeter Change-Over Switch
„ Voltage Regulator
„ 3-Pole, 90 amp Main Circuit Breaker
„ “Control Box” (located behind the Gen. Control Panel)
• Automatic Voltage Regulator
engine
This generator is powered by a 4 cylinder, water cooled,
direct injection, Izuzu Model BV-4LE2 diesel engine.
This engine is designed to meet every performance
requirement for the generator.ReferenceTable 2 for engine
specifications.
• Current Transformer
• Over-Current Relay
• Starter Relay
ouTpuT TerMinal panel
The “Output Terminal Panel” is provided with the following:
„ Two 120/240V output receptacles (CS-6369), 50A
„ Two auxilliary circuit breakers, (for CS-6369), 50A
„ Two 120V output receptacles (GFCI), 20A
„ Two GFCI circuit breakers, 20A
„ Four output terminal lugs (1Ø power)
„ Battery Charger (Optional)
In keeping with MQ Power’s policy of constantly improving
its products, the specifications quoted herein are subject
to change without prior notice.
eleCTriC governor sYsTeM
TheelectricgovernorsystemcontrolstheRPMsoftheengine.
When the engine demand increases or decreases, the
governor system regulates the frequency variation to .25%.
exTension CaBles
„ Water Heater (Optional)
When electric power is to be provided to various tools or
loads at some distance from the generator, extension cords
are normally used. Cables should be sized to allow for
distance in length and amperage so that the voltage drop
between the generator and point of use (load) is held to
a minimum. Use the cable selection chart (Table 6) as a
guide for selecting proper extension cable size.
page 16 — DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13)
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MajOr cOMpOnents
1
20
U
O
V
2
3
4
20
U
O
V
5
7
6
8
Table 4. generator Major Components
iTeM no.
DesCripTion
Output Terminal Assembly
Output Receptacles Assembly
Muffler Assembly
1
2
AUTO
MANUAL
OFF/RESET
LOW OIL PRESSURE
HIGH COOLANT TEMPERATURE
OVERCRANK
OVERSPEED
ENGINE RUNNING
3
MOOOOO-20001Q
4
Air Filter Assembly
5
Battery Assembly
10
9
6
Generator Assembly
7
Engine Assembly
8
Circuit Breaker Assembly
Engine Control Panel Assembly
Generator Control Panel Assembly
9
10
Figure 3. Major Components
DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13) — page 17
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generatOr cOntrOl panel
4
2
INCREASE
DECREASE
HZ
3
V
1
5
A
V
U
W
AUTO
MANUAL
OFF/RESET
OFF
LOW OIL PRESSURE
HIGH COOLANT TEMPERATURE
OVERCRANK
OVERSPEED
ENGINE RUNNING
MOOOOO-20001Q
6
1000
2000
0
3000
RPM
Figure 4. Generator Control Panel
he definitions below describe the controls and functions of
the Generator Control Panel (Figure 4).
Located behind the generator control panel is the Generator
Control Box. This box contains some of the necessary
electronic components required to make the generator
function.
1. Main Circuit Breaker—This three-pole, 90A main
breaker is provided to protect the the U,O, andV Output
Terminal Lugs from overload.
The Control Box is equipped with the following major
components:
2. voltage regulator Control — Allows 15% manual
adjustment of the generator’s output voltage.
„ Over-Current Relay
„ Automatic Voltage Regulator (AVR)
„ Starter Relay
3. ammeter Change-over switch —This switch allows
the AC ammeter to indicate the current flowing to the
load connected to any phase of the output terminals,
or to be switched off. This switch does not effect the
generator output in any fashion, it is for current reading
only.
„ Current Transformer
„ Engine Controller
4. Frequency Meter — Indicates the output frequency
in hertz (Hz). Normally 60 Hz.
5. aC ammeter — Indicates the amount of current the
load is drawing from the generator per leg selected by
the ammeter phase-selector switch.
6. aC voltmeter — Indicates the output voltage present
at the U,O, and V Output Terminal Lugs.
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nOtes panel
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engine cOntrOl panel
6
1
INCREASE
DECREASE
7
HZ
2
3
4
8
V
A
U
W
AUTO
MANUAL
OFF/RESET
OFF
LOW OIL PRESSURE
HIGH COOLANT TEMPERATURE
OVERCRANK
9
OVERSPEED
ENGINE RUNNING
MOOOOO-20001Q
V
1000
2000
0
3000
5
RPM
Figure 5. Engine Control Panel
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engine cOntrOl panel
The definitions below describe the controls and functions
of the Engine Control Panel (Figure 5).
Also the engine controller will shut down the engine in
the event of low oil pressure, high coolant temperature,
low coolant level, and loss of magnetic pickup. These
conditions can be observed by monitoring the LED
status indicators on the front of the controller module.
1. oil pressure gauge — During normal operation this
gauge should read between 35 to 65 psi. (241~448 kPa).
When starting the generator the oil pressure may read a
little higher, but after the engine warms up the oil pressure
should return to the correct pressure range.
A. MpeC Control switch — This switch controls the
running of the unit. If this switch is set to the OFF/
RESET position, the unit will not run. When this switch
is set to the manual position, the generator will start
immediately.
2. waterTemperature gauge — During normal operation this
gauge be should read between 180°~221°F (82°~105°C)
3. Charging ammeter gauge — Indicates the current
being supplied by the engine’s alternator which provides
current for generator’s control circuits and battery
charging system.
If the generator is to be connected to a building’s
AC power source via an automatic transfer switch
(isolation), place the switch in the AUTO position.In this
position, should an outage occur, the automatic transfer
switch (ATS) will start the generator automatically
via the generator’s auto-start contacts connected to
the ATS’s start contacts. Please refer to your ATS
installation manual for further instructions for the
correct installation of the auto-start contacts of the
generator to the ATS.
4. Fuel gauge — Indicates amount of diesel fuel available.
5. Tachometer — Indicates engine speed in RPM’s for 60
Hz operation. This meter should indicate 1800 RPM’s
when the rated load is applied. In addition a built in hour
meter will record the number of operational hours that
the generator has been in use.
B. low oil pressure — Indicates the engine pressure
has fallen below 15 psi (103 kPa). The oil pressure is
detected using variable resistive values from the oil
pressure sending unit.This is considered a major fault.
6. panel light — Normally used in dark areas or at night
time. When activated, panel lights will illuminate. When
the generator is not in use be sure to turn the panel light
switch to the OFF position.
C. high Coolant Temperature — Indicates the engine
temperature has exceeded 230°F (110°C).The engine
temperature is detected using variable resistive values
from the temperature sending unit. This is considered
a major fault.
7. panel light switch —When activated will turn on control
panel light.
8. Fuel Filter water level alarm lamp — This lamp will
illuminate when water in the fuel filter has reached an
abnormal level.
D. overcrank shutdown — Indicates the unit has
attempted to start a pre- programmed number of
times, and has failed to start.The number of cycles and
duration are programmable.It is pre-set at 3 cycles with
a 10 second duration.This is considered a major fault.
9. auto sTarT/sTop engine
Controller(eCu)—Thiscontroller
has a vertical row of status LED's
(inset), that when lit, indicate
that an engine malfunction (fault)
has been detected. When a fault
has been detected the engine
controller will evaluate the fault
and all major faults will shutdown
the generator. During cranking
cycle, the ECU will attempt to crank the engine for 10
seconds before disengaging.
E. overspeed shutdown — Indicates the engine is
running at an unsafe speed. This is considered a
major fault.
F. engine running — Indicates that engine is running
at a safe operating speed.
If the engine does not engage (start) by the third
attempt, the engine will be shutdown by the engine
controller’s Over Crank Protection mode. If the engine
engages at a speed (RPM's) that is not safe, the
controller will shutdown the engine by initializing the
Over Speed Protection mode.
DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13) — page 21
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Output terMinal panel faMiliarizatiOn
ouTpuT TerMinal panel
ouTpuT TerMinal FaMiliarizaTion
The Output Terminal Panel (Figure 7) shown below is
located on the right-hand side (left from control panel) of
the generator. Lift up on the cover to gain access to
receptacles and terminal lugs.
The “Output Terminal Panel ” (Figure 6) is provided with
the following:
„ Two 120/240V output receptacles @ 50 amp
„ Two Circuit Breakers @ 50 amps
NOTICE
„ Two 120V GFCI receptacles @ 20 amp
„ Two GFCI Circuit Breakers @ 20 amps
„ Four Output Terminal Lugs (U, O, V, and Ground)
Terminal legs “O”and “Ground”are considered bonded
grounds.
SINGLE PHASE
240 -120 VAC
OUTPUT TERMINALS
GROUND
TERMINAL
HARD WIRE
HOOKUP PANEL
O
V
U
BLACK
GREEN
RED
WHITE
NEUTRAL
TERMINAL
M
Q
P
O
W
E
R
CIRCUIT BREAKERS
FOR CS-6369 TWIST
LOCK RECEPTACLES
CIRCUIT BREAKERS
FOR GFCI RECEPTACLES
120 VAC, 20 AMP
GFCI RECEPTACLES
ACCESS DOOR
LIFT TO OPEN
RECEPTACLE
AND
CIRCUIT BREAKER
PANEL
Y
W
X
CS-6369
TWIST-LOCK
AUX. POWER RECEPTACLES
120/240V, 50 AMPS
Figure 6. Output Terminal Panel
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Output terMinal panel faMiliarizatiOn
Each auxiliary receptacle is protected by a 50 amp circuit
breaker. These breakers are located directly above the
GFCI receptacles. Remember the load output (current) on
all three receptacles is dependent on the load requirements
of the output Terminal lugs.
120 vaC gFCi receptacles
There are two 120 VAC, 20 amp GFCI (Duplex Nema
5-20R) receptacles provided on the output terminal panel.
These receptacles can be accessed in any voltage
selector switch position.Each receptacle is protected by a
20 amp circuit breaker.These breakers are located directly
above the GFCI receptacles. Remember the load output
(current) of both GFCI receptacles is dependent on the load
requirements of the U, O, and V output terminal lugs.
Turn the voltage regulator control knob (Figure 9) on the
control panel to obtain the desired voltage.Turning the knob
clockwise will increase the voltage, turning the knob
counter-clockwise will decrease the voltage.
Pressing the reset button resets the GFCI receptacle after
being tripped. Pressing the test button (See Figure 7) in
the center of the receptacle will check the GFCI function.
Both receptacles should be tested at least once a month.
Figure 9. Voltage Regulator Control Knob
removing the plastic Face plate (hard wire
hookup panel)
The OutputTerminal Lugsare protected by a plastic
face plate cover (Figure 10). Un-screw the securing bolts
and lift the plastic terminal cover to gain access to the
terminal enclosure.
After the load wires have been securely attached to the
terminal lugs, reinstall the plastic face plate.
Figure 7. G.F.C.I. Receptacle
Twist lock Dual voltage 120/240 vaC receptacles
There are two 120/240V, 50 amp auxiliary twist-lock (CS-
6369) receptacles (Figure 8) provided on the output
terminal panel..
Figure 10. Plastic Face Plate (Output Terminal Lugs)
Figure 8. 120/240V Twist-Lock Auxiliary
Receptacles
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Output terMinal panel faMiliarizatiOn
Connecting loads
over Current relay
Loads can be connected to the generator by the output
Terminal lugs or the convenience receptacles (Figure 11).
Make sure to read the operation manual before attempting
to connect a load to the generator.
An over current relay (Figure 12) is connected to the main
circuit breaker. In the event of an overload, both the circuit
breaker and the over current relay may trip. If the circuit
breaker can not be reset, the reset button on the over
current relay must be pressed. The over current relay is
located in the control box.
To protect the output terminals from overload, a 3-pole,
90A main circuit breaker is provided. Make sure to switch
all circuit breakers to the oFF position prior to starting
the engine.
Figure 12. Over Current Relay
NOTICE
When connecting a load to the generator alwaYs
make sure the load has an ON/OFF switch. Do noT
.
use the circuit breakers on the generator as a method
of turning the load ON and OFF.
Figure 11. Connecting Loads
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lOad applicatiOn/generatOr Output
single phase loaD
NOTICE
Always be sure to check the nameplate on the generator
and equipment to insure the wattage, amperage, frequency,
and voltage requirements are satisfactorily supplied by the
generator for operating the equipment.
Motors and motor-driven equipment draw much greater
current for starting than during operation.
An inadequate size connecting cable which cannot carry the
required load can cause a voltage drop which can burn out
the appliance or tool and overheat the cable. See Table 6
Generally, the wattage listed on the nameplate of the
equipment is its rated output. Equipment may require
130—150% more wattage than the rating on the nameplate,
as the wattage is influenced by the efficiency, power factor
and starting system of the equipment.
„ When connecting a resistance load such as an
incandescent lamp or electric heater, a capacity of up
to the generating set’s rated output (kW) can be used.
NOTICE
„ When connecting a fluorescent or mercury lamp, a
capacity of up to the generating set’s rated output (kW)
multiplied by 0.6 can be used.
If wattage is not given on the equipment’s name plate,
approximate wattage may be determined by multiplying
nameplate voltage by the nameplate amperage.
„ When connecting an electric drill or other power tools,
pay close attention to the required starting current
capacity.
WATTS = VOLTAGE x AMPERAGE
The power factor of this generator is 0.8.SeeTable 5 below
when connecting loads.
When connecting ordinary power tools, a capacity of up to
the generating set’s rated output (kW) multiplied by 0.8 can
be used.
Table 5. power Factor By load
Type of load
power Factor
Danger
Single-phase induction motors
0.4-0.75
Before connecting this generator to any building’s
electrical system, a licensed electrician must install
an isolation (transfer) switch. Serious damage to
the building’s electrical system may occur without this
transfer switch.
Electric heaters, incandescent lamps
Fluorescent lamps, mercury lamps
1.0
0.4-0.9
Electronic devices, communication
equipment
1.0
0.8
Common power tools
generator amperage
Table 7 shows the maximum amps the generator can
provide. Do noT exceed the maximum amps as listed.
Table 6. Cable selection (60 hz, single phase operation)
load in watts
Maximum allowable Cable length
Current
in
amperes
at 100
volts
at 200
volts
Table 7. generator Maximum amps
#10 wire #12 wire #14 wire #16 wire
2.5
5
300
600
1000 ft.
500 ft.
350 ft.
250 ft.
150 ft.
125 ft.
600 ft.
300 ft.
200 ft.
150 ft.
100 ft.
75 ft.
375 ft.
200 ft.
125 ft.
100 ft.
65 ft.
250 ft.
125 ft.
100 ft.
rated voltage
1Ø 120 Volt
1Ø 240 Volt
Maximum amps
83 X 2 amps (4 wire)
83 amps (4 wire)
600
1200
1800
2400
3600
4800
7.5
10
15
20
900
1200
1800
2400
50 ft.
CAUTION: Equipment damage can result from low voltage
DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13) — page 25
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Output terMinal panel cOnnectiOns
uovTerMinal ouTpuT volTages
1Ø-120 output Terminal voltage
240/120V outout voltages can be obtained using theoutput
terminal lugs.
1. Connect the load wires to the output terminal lugs as
shown in Figure 15.
The voltage regulator (VR), Figure 14 allows the user to
increase or decrease the selected voltage.
1Ø-240 output Terminal voltage
1. Connect the load wires to the output terminal lugs as
shown in Figure 13.
Figure 15. Output Terminal Lugs
1Ø-120 Volt Connections
2. Turn the voltage regulator knob (Figure 14) clockwise
to increase voltage output, turn counterclockwise to
decrease voltage output.
NOTICE
Figure 13. Output Terminal Lugs
1Ø-240 Volt Connections
alwaYs make sure that the connections to the UVO
terminal lugs are secure and tight. The possibility of
arcing exists, that could cause a fire.
2. Turn the voltage regulator knob (Figure 14) clockwise
to increase voltage output, turn counterclockwise to
decrease voltage output. Use voltage regulator
adjustment knob whenever fine tuning of the output
voltage is required.
Figure 14. Voltage Regulator Knob
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inspectiOn/setup
CirCuiT Breakers
Fuel CheCk
To protect the generator from an overload, a 3-pole, 90
amp, main circuit breaker is provided to protect the u,o
and v output Terminals from overload. In addition two
single-pole, 20 amp gFCi circuit breakers are provided to
protect the GFCI receptacles from overload. Two 50 amp
load circuit breakers have also been provided to protect the
auxiliary receptacles from overload. Make sure to switch
all circuit breakers to the oFF position prior to starting
the engine.
Danger
Fuel spillage on a hot engine can cause
a fire or explosion.If fuel spillage occurs,
wipe up the spilled fuel completely to
prevent fire hazards. never smoke
around or near the generator.
refilling the Fuel system
luBriCaTion oil
CauTion
Fill the engine crankcase with lubricating oil through the
filler hole, but Do noT overfill. Make sure the generator is
level and verify that the oil level is maintained between the
two notches (Figure 16) on the dipstick. See Table 8 for
proper selection of engine oil.
onlY properly trained personnel who have read
and understand this section should refill the fuel tank
system.
This generator has an internal fuel tank located inside
the trailer frame and may also be equipped with an
environmental fuel tank (Figure 17). alwaYs fill the fuel
tanks with clean fresh #2 diesel fuel. Do noT fill the fuel
tanks beyond their capacities.
Figure 16. Engine Oil Dipstick
Pay attention to the fuel tank capacity when replenishing
fuel. The fuel tank cap must be closed tightly after filling.
Handle fuel in a safety container. If the container does not
have a spout, use a funnel. Wipe up any spilled fuel
immediately.
When checking the engine oil, be sure to check if the oil is
clean. If the oil is not clean, drain the oil by removing the
oil drain plug, and refill with the specified amount of oil as
outlined in the isuzu engine owner’s Manual.Oil should
be warm before draining.
Other types of motor oils may be substituted if they meet
the following requirements:
„ API Service Classification CC/SC
„ API Service Classification CC/SD
„ API Service Classification CC/SE
„ API Service Classification CC/SF
FUEL TANK
FILLER NECK
Table 8. recommended Motor oil
Figure 17. Trailer Fuel Tank
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inspectiOn/setup
2. Remove fuel cap from filler neck and fill fuel tank
(Figure 19).
refueling procedure:
warning
3. never overfill fuel tank — It is important to read the
fuel gauge when filling trailer fuel tank. Do noT wait
for fuel to rise in filler neck (Figure 19).
Diesel fuel and its vapors are dangerous
to your health and the surrounding
environment. Avoid skin contact and/or
inhaling fumes.
1. levelTanks — Make sure fuel cells are level with the
ground. Failure to do so will cause fuel to spill from the
tank before reaching full capacity (Figure 18).
CauTion
Figure 19. Full Fuel Tank
alwaYs place trailer on firm level ground before
refueling to prevent spilling and maximize the amount
of fuel that can be pumped into the tank.
CauTion
Do noT overFill fuel system. Leave room for fuel
expansion. Fuel expands when heated (Figure 20).
Figure 18. Only Fill on Level Ground
Figure 20. Fuel Expansion
NOTICE
CoolanT (anTiFreeze/suMMer CoolanT/
waTer)
onlY use #2 diesel fuel when refueling.
ISUZUrecommendsantifreeze/summercoolantforuseintheir
engines, which can be purchased in concentrate (and mixed
with 50% demineralized water) or pre-diluted.See the isuzu
engine owner’s Manual for further details.
warning
If adding coolant/antifreeze mix to the
radiator, Do noT remove the radiator cap
until the unit has completely cooled. The
possibility of hot! coolant exists which can
cause severe burns.
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inspectiOn/setup
Day-to-day addition of coolant is done from the recovery
tank.When adding coolant to the radiator, Do noT remove
the radiator cap until the unit has completely cooled. See
Table 9 for engine, radiator, and recovery tank coolant
capacities.Make sure the coolant level in the recovery tank
is always between the “H” and the “L” markings.
damage and wear and adjust it in accordance with the
isuzu engine owner’s Manual.
The fan belt tension is proper if the fan belt bends 10 to 15
mm (Figure 21) when depressed with the thumb as shown
below.
Table 9. Coolant Capacity
Engine and Radiator
Reserve Tank
1.74 gal (606 liters)
0.26 gal. (1 liter)
operation in Freezing weather
When operating in freezing weather, be certain the proper
amount of antifreeze (Table 10) has been added.
Figure 21. Fan Belt Tension
CauTion
Table 10. anti-Freeze operatingTemperatures
NEVER place hands near the belts or fan
while the generator set is running.
Vol %
Anti-
Freeze
Freezing Point
Boiling Point
°C
°F
°C
°F
50
-37
-34
108
226
BaTTerY
This unit is of negative ground Do noT connect in reverse.
Always maintain battery fluid level between the specified
marks. Battery life will be shortened, if the fluid level are
not properly maintained. Add only distilled water when
replenishment is necessary.
NOTICE
When the antifreeze is mixed with water, the antifreeze
mixing ratio must be less than 50%.
Cleaning The raDiaTor
Do noT over fill. Check to see whether the battery
cables are loose. Poor contact may result in poor starting
or malfunctions. always keep the terminals firmly
tightened. Coating the terminals with an approved battery
terminal treatment compound. Replace battery with only
recommended type battery.
The engine may overheat if the radiator fins become
overloaded with dust or debris. Periodically clean the
radiator fins with compressed air. Cleaning inside the
machine is dangerous, so clean only with the engine turned
off and the negative battery terminal disconnected.
The battery is sufficiently charged if the specific gravity
of the battery fluid is 1.28 (at 68° F). If the specific gravity
should fall to 1.245 or lower, it indicates that the battery is
dead and needs to be recharged or replaced.
air Cleaner
Periodic cleaning/replacement is necessary. Inspect it in
accordance with the isuzu engine owner’s Manual.
Before charging the battery with an external electric source,
be sure to disconnect the battery cables.
Fan BelT Tension
A slack fan belt may contribute to overheating, or to
insufficient charging of the battery. Inspect the fan belt for
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inspectiOn/setup
Battery Cable installation
alTernaTor
alwaYs be sure the battery cables (Figure 22) are
properly connected to the battery terminals as shown below.
The red cable is connected to the positive terminal of the
battery, and the black cable is connected to the negative
terminal of the battery.
The polarity of the alternator is negative grounding type.
When an inverted circuit connection takes place, the
circuit will be in short circuit instantaneously resulting the
alternator failure.
Do noT put water directly on the alternator. Entry of water
into the alternator can cause corrosion and damage the
alternator.
CauTion
alwaYs disconnect the negative terminal FirsT and
reconnect negative terminal lasT.
wiring
Inspect the entire generator for bad or worn electrical wiring
or connections. If any wiring or connections are exposed
(insulation missing) replace wiring immediately.
piping anD hose ConneCTion
Inspect all piping, oil hose, and fuel hose connections for
wear and tightness. Tighten all hose clamps and check
hoses for leaks.
If any hose (fuel or oil) lines are defective replace them
immediately.
Figure 22. Battery Connections
When connecting battery do the following:
1. never connect the battery cables to the battery
terminals when the Control power switch is in either
the on position. alwaYs make sure that the Control
power switch is in the oFF position when connecting
the battery.
2. Place a small amount of battery terminal treatment
compound around both battery terminals. This will
ensure a good connection and will help prevent
corrosion around the battery terminals.
NOTICE
If the battery cable is connected incorrectly, electrical
damage to the generator will occur.Pay close attention to
the polarity of the battery when connecting the battery.
CauTion
Inadequate battery connections may cause poor
starting of the generator, and create other malfunctions.
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generatOr start-up prOcedure (Manual)
BeFore sTarTing
sTarTing (Manual)
1. Place the MpeC control switch in the Manual
position to start the engine (Figure 25) position.
CauTion
The engine’s exhaust contains harmful emissions.
alwaYs have adequate ventilation when operating.
Direct exhaust away from nearby personnel.
MANUAL
AUTO
OFF/RESET
warning
Figure 25. MPEC Control Switch
(Manual Position)
never manually start the engine with the main, gFCi
or auxiliary circuit breakers in the on (closed) position.
2. Verify that the engine running status LED on the
MPEC module (Figure 26) is lit (ON) after the engine
has started
1. Place the main, g.F.C.i., and aux. circuit breakers
(Figure 23) in the oFF position prior to starting the
engine.
AUTO
OFF/RESET
MANUAL
LOW OIL PRESSURE
HIGH COOLANT TEMPERATURE
OVERCRANK
OVERSPEED
ENGINE RUNNING
MOOOOO-20001Q
Figure 26. Engine Running (LED ON)
3. The generator’s frequency meter (Figure 27) should
be displaying the 60 cycle output frequency in herTz.
Figure 23. Main, Aux. and GFCI
Circuit Breakers (OFF)
2. Connect the load to the receptacles or the output
terminal lugs as shown in Figure 11. These load
connection points can be found on the output terminal
panel and the output terminal panel’s hard wire hookup
panel.
Hz
3. Tighten terminal nuts securely to prevent load wires
from slipping out.
Figure 27. Frequency Meter
4. Close all engine enclosure doors (Figure 24).
4. The generator’s AC-voltmeter (Figure 28) will display
the generator’s output in volTs.
CORRECT
INCORRECT
V
Figure 24. Engine Enclosure Doors
Figure 28. Voltmeter
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generatOr start-up prOcedure (Manual)
5. If the voltage is not within the specified tolerance use
the voltage adjustment control knob (Figure 29) to
increase or decrease the desired voltage.
Under normal operating conditions this speed is
approximately 1800 RPM’s.
20
25
15
DECREASE
INCREASE
10
30
RPM X 100
5
0
35
40
TACH
HOURS
8
0
4
0
0
0
1
10
Figure 29. Voltage Adjust Control Knob
6. The ammeter (Figure 30) will indicate zero amps with
no load applied. When a load is applied, the ammeter
will indicate the amount of current that the load is
drawing from the generator.
Figure 33. Engine Tachometer Gauge
10. Place the main, g.F.C.i., and aux. circuit breakers
(Figure 34) in the on position.
.
A
Figure 30. Ammeter (No Load)
7. The engine oil pressure gauge (Figure 31) will indicate
the oil pressure of the engine. Under normal operating
conditions the oil pressure is approximately 35 to 65
psi. (241~448 kPa).
Figure 34. Main, Aux. and GFCI
Circuit Breakers (ON)
11. Observe the generator’s ammeter (Figure 35) and
verify it reads the anticipated amount of current with
respect to the load. The ammeter will only display a
current reading if a load is in use.
psi
50
75
25
4
3
2
5
0
100
6
1
bar
OIL
PRESS
DATCON
Figure 31. Oil Pressure Gauge
A
8. The coolant temperature gauge (Figure 32) will
indicate the coolant temperature. Under normal
operating conditions the coolant temperature should
be between 180°~221°F (82°~105°C) (green zone).
Figure 35. Ammeter (Load)
F
150
12. The generator will run until manually stopped or an
abnormal condition occurs.
180
130
60
80
100
240
C
40
110
WATER
TEMP
lighT Tower operaTion
DATCON
NOTICE
Figure 32. Coolant Temperature Gauge
For light tower operation, refer to the MLT20 Series
Operation Manual (Part Number 49838).
9. The tachometer gauge (Figure 33) will indicate the
speed of the engine when the generator is operating.
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generatOr shut-dOWn prOcedures
1. Place the MpeC Control switch (Figure 36) in the
auTo position.
sTarTing (auTo MoDe)
Danger
Before connecting this generator to any
building’s electrical system, a licensed
electrician must install an isolation
(transfer) switch. Serious damage to
the building’s electrical system may occur
MANUAL
OFF/RESET
AUTO
Figure 36. MPEC Control Switch (AUTO)
without this transfer switch.
2. Continue operating the generator as outlined in the
Manual Start-up procedure (start at step 2).
NOTICE
When connecting the generator to a isolation (transfer)
switch, alwaYs have power applied to the generator’s
internal battery charger.This will ensure that the engine
will not fail due to a dead battery
NOTICE
When the MPEC control switch is placed in the auTo
mode, the generator will automatically start in the
event of commercial power falling below a prescribed
level by means of a contact closure that is generated
automatically by a transfer switch.
In this position (auTo), should an outage occur, the
automatic transfer switch (ATS) will start the generator
automatically via the generator's auto-start contacts
connected to the ATS's start contacts.
Please refer to your ATS installation manual for further
instructions for the correct installation of the auto-start
contacts of the generator to the ATS.
warning
When running the generator in the auTo mode,
remember the generator can start up at any time without
warning. never attempt to perform any maintenance
when the generator is in the auto mode.
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generatOr shut-dOWn prOcedures
3. Place the MpeC Control switch (Figure 38) to the
oFF/reseT position.
norMal shuTDown proCeDure
To shutdown the generator, use the following procedure:
warning
never stop the engine suddenly except in an
emergency.
MANUAL
OFF/RESET
AUTO
Figure 38. MPEC Control Switch (Off/Reset)
1. Place the main, g.F.C.i., and aux. circuit breakers
(Figure 37) in the oFF position.
4. Verify that all the status LEDs on the MPEC display
are oFF (not lit).
5. Remove all loads from the generator.
6. Inspect entire generator for any damage or loosening of
components that may have occurred during operation.
eMergenCY shuTDown proCeDure
1. Place the main, g.F.C.i., and aux. circuit breakers
(Figure 37) in the oFF position.
Figure 37. Main, Aux. and GFCI
Circuit Breakers (OFF
2. Let the engine cool by running it at low speed for 3-5
minutes with no load applied.
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Maintenance
10 hrs
DailY
1000
hrs
Table 11. inspection/Maintenance
250 hrs 500 hrs
Check Engine Fluid Levels
Check Air Cleaner
X
X
X
X
X
X
Check Battery Acid Level
Check Fan Belt Condition
Check for Leaks
Check for Loosening of Parts
Replace Engine Oil and Filter * 1
Clean Air Filter
X
X
engine
Check Fuel Filter/Water Separator Bowl
Clean Unit, Inside and Outside
Change Fuel Filter
Clean Radiator and Check Coolant Protection Level*2
Replace Air Filter Element * 3
Check all Hoses and Clamps * 4
Clean Inside of Fuel Tank
X
X
X
X
X
X
X
Measure Insulation Resistance Over 3M ohms
X
generator
Check Rotor Rear Support Bearing
Replace engine oil and filter at 100 hours, first time only.
X
1
*
2
*
Add “Supplemental Coolant Additives (SCA’S)” to recharge the engine coolant.
Replace primary air filter element when restriction indicator shows a vacuum of 625 mm (25 in. H20).
If blowby hose needs to be replaced, ensure that the slope of the blowby hose is at least a 1/2 inch per foot,
3
*
4
*
with no sags or dips that could collect moisture and/or oil.
general inspeCTion
Prior to each use, the generator should be cleaned and
inspected for deficiencies. Check for loose, missing or
damaged nuts, bolts or other fasteners. Also check for
fuel, oil, and coolant leaks. Use Table 11 as a general
maintenance guideline engine side (Refer to the Engine
Instruction Manual)
air Cleaner
Every 250 hours: Remove air cleaner element (Figure 39)
and clean the heavy duty paper element with light spray of
compressed air. Replace the air cleaner as needed.
Figure 39. Air Cleaner/Indicator
NOTICE
air Cleaner with Dust indicator
The air filter should not be changed until the indicator
reads “reD”. Dispose of old air filter. It may not be
cleaned or reused.
This indicator (Figure 39) is attached to the air cleaner.
When the air cleaner element is clogged, air intake
restriction becomes greater and the dust indicator signal
shows reD meaning the element needs changing or
service. After changing the air element, press the dust
indicator button to reset the indicator.
DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13) — page 35
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Maintenance
FuelTank inspeCTion
If the engine is operating in very dusty or dry grass
conditions, a clogged air cleaner will result.This can lead to
a loss of power, excessive carbon buildup in the combustion
chamber and high fuel consumption. Change air cleaner
more frequently if these conditions exists.
In addition to cleaning the fuel tank, the following
components should be inspected for wear:
„ rubber suspension — look for signs of wear or
deformity due to contact with oil. Replace the rubber
suspension if necessary.
Fuel aDDiTion
Add diesel fuel (the grade may vary according to season
and locations).
„ Fuel hoses — inspect nylon and rubber hoses for signs
of wear, deterioration and hardening.
removing water from the Fuel Tank
„ FuelTank lining — inspect the fuel tank lining for signs
of excessive amounts of oil or other foreign matter.
After prolonged use, water and other impurities accumulate
in the bottom of the tank. Occasionally inspect the fuel
tank for water contamination and drain the contents if
required.
replacing Fuel Filter
„ Replace the fuel filter cartridge with new one every 500
hours or so.
During cold weather, the more empty volume inside the
tank, the easier it is for water to condense. This can be
reduced by keeping the tank full with diesel fuel.
„ Loosen the drain plug at the lower top of the fuel filter.
Drain the fuel in the fuel body together with the mixed
water. Do noT spill the fuel during disassembly.
Cleaning inside the Fuel Tank
„ Vent any air
If necessary, drain the fuel inside the fuel tank completely.
Using a spray washer (Figure 40) wash out any deposits
or debris that have accumulated inside the fuel tank.
air reMoval
If air enters the fuel injection system of a diesel engine,
starting becomes impossible. After running out of fuel,
or after disassembling the fuel system, bleed the system
according to the following procedure. See the isuzu
engine Manual for details.
To restart after running out of fuel, turn the switch to the on
position for 15-30 seconds. Try again, if needed.
Figure 40. Fuel Tank Cleaning
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Maintenance
CheCk oil level
raDiaTor Cleaning
Check the crankcase oil level prior to each use, or when the
fuel tank is filled.Insufficient oil may cause severe damage
to the engine.Make sure the generator is level.The oil level
must be between the two notches on the dipstick as shown
in Figure 17 .
The radiator (Figure 41) should be sprayed (cleaned) with
a high pressure washer when excessive amounts of dirt
and debris have accumulated on the cooling fins or tube.
When using a high pressure washer, stand at least 5 feet
(1.5 meters) away from the radiator to prevent damage to
the fins and tube.
replacing oil Filter
„ Remove the old oil filter.
„ Apply a film of oil to the gasket on the new oil filter.
„ Install the new oil filter.
„ After the oil cartridge has been replaced, the engine oil
will drop slightly.Run the engine for a while and check for
leaks before adding more oil if needed. Clean excessive
oil from engine.
Flushing ouT raDiaTor anD replaCing
CoolanT
Figure 41. Radiator Cleaning
„ Open both cocks located at the crankcase side and at
the lower part of the radiator and drain coolant. Open
the radiator cap while draining. Remove the overflow
tank and drain.
generaTor sTorage
For long term storage of the generator the following is
recommended:
„ Check hoses for softening and kinks. Check clamps for
signs of leakage.
„ Drain the fuel tank completely.Treat with a fuel stabilizer
if necessary.
„ Tighten both cocks and replace the overflow tank.
„ Completely drain the oil from the crankcase and refill if
necessary with fresh oil.
„ Replace with coolant as recommended by the engine
manufacturer.
„ Clean the entire generator, internal and external.
„ Cover the generating set and store in a clean, dry place.
„ Disconnect the battery.
„ Close radiator cap tightly.
„ Flush the radiator by running clean tap water through
radiator until signs of rust and dirt are removed. Do
noT clean radiator core with any objects, such as a
screwdriver.
„ Make sure engine coolant is at proper level.
„ If generator is mounted on a trailer, jack trailer up and
place on blocks so tires do not touch the ground or block
and completely remove the tires.
warning
Allow engine to cool when flushing out
radiator. Flushing the radiator while hot
could cause serious burns from water or
steam.
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Maintenance
If the generator will be used daily, the battery should
normally not require charging. If the generator will be idle
(not used) for long periods of time, apply power to the
battery charger receptacle via commercial power using a
power cord of adequate size.
JaCkeTwaTerheaTeranDinTernalBaTTerY
Charger 120 vaC inpuT reCepTaCles
(opTional)
This generator can be optionally equipped with two 120
VAC, 20 amp input receptacles located on the output
terminal panel.
NOTICE
To ensure adequate starting capability, always have
power applied to the generator's internal battery
charger.
The purpose of these receptacles is to provide power via
commercial power to the jacket water heater and internal
battery charger.
These receptacles will onlY function when commercial
power has been supplied to them (Figure 42). To apply
commercial power to these receptacles, a power cord of
adequate size will be required (See Table 6).
When using the generator in hot climates there is no reason
to apply power to jacket water heater. However, if the
generator will be used in cold climates it is always a good
idea to apply power to the jacket water heater at all times.
To apply power to the jacket water heater simply apply
power to the jacket water heater receptacle via commercial
power using an power cord of adequate size.
Figure 42. Battery Charger and Jacket Water
Heater Power Connections
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trailer Maintenance
8. Tire size — Indicates the diameter of the tire in
inches (10,12,14, etc.), and the width in millimeters
(175,185,205, etc.). The tire diameter must match the
diameter of the tire rim.
Trailer MainTenanCe
This section is intended to provide the user with generic
trailer service and maintenance information. The service
and maintenance guidelines referenced in this section refer
to a wide range of trailers.
9. Tire ply — The tire ply (layers) number is rated in
letters; 2-ply,4-ply,6-ply, etc.
Remember periodic inspection of the trailer will ensure safe
towing of the generator and will prevent personal injury and
damage to the equipment.
10. wheel hub — The wheel hub is connected to the
trailer’s axle.
11. Tire rim — Tires mounted on a tire rim. The tire rim
must match the size of the tire.
The definitions below describe some of the major
components of a typical trailer that would be used with
generator.
12. lug nuts — Used to secure the wheel to the wheel
hub. Always use a torque wrench to tighten down
the lug nuts. See Table 15 and Figure 45 for lug nut
tightening and sequence.
1. Fuel Cell — Provides an adequate amount of fuel for
the equipment in use. Fuel cells must be empty when
transporting equipment.
13. axle — Indicates the maximum weight the axle can
support in pounds, and the diameter of the axle
expressed in inches. Please note that some trailers
have a double axle.This will be shown as 2-6000 lbs.,
meaning two axles with a total weight capacity of 6000
pounds.
2. Braking system — System employed in stopping
the trailer.Typical braking systems are electric, surge,
hydraulic, hydraulic-surge and air.
3. gvwr — Gross Vehicle Weight Rating (GVWR) is
the maximum number of pounds the trailer can carry,
including the fuel cell (empty).
14. suspension — Protects the trailer chassis from shocks
transmitted through the wheels. Types of suspension
used are leaf, Q-flex, and air ride.
4. Frame length — Measurement is from the ball hitch
to the rear bumper (reflector).
5. Frame width — Measurement is from fender to
fender
15. electrical — Electrical connectors (looms) are provided
with the trailer so the brake lights and turn signals can
be connected to the towing vehicle.
6. Jack stand — Trailer support device with maximum
pound requirement from the tongue of the trailer.
16. application — Indicates which units can be employed
on a particular trailer.
7. Coupler — Type of hitch used on the trailer for
towing.
DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13) — page 39
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trailer Maintenance
Brakes
hydraulic surge Brakes
Trailer brakes should be inspected the first 200 miles of
operation.This will allow the brake shoes and drums to seat
properly.After the first 200 mile interval, inspect the brakes
every 3,000 miles. If driving over rough terrain, inspect the
brakes more frequently.
Hydraulic surge brakes (Figure 43) should not require any
special attention with the exception of routine maintenance
such as shoe and lining replacement. Brake lines should
be periodically checked for cracks, kinks, or blockage.
Figure 43 displays the major hydraulic surge brake
components that will require inspection and maintenance.
Please inspect these components as required using steps
1 through 8 and Table 12 as listed below:
Brake adjustment
1. Place the trailer on jack stands. Make sure the jack
stands are placed on secure level ground.
2. Check the wheel and drum for free rotation.
3. Remove the adjusting hole cover from the adjusting
slot at the bottom brake backing plate.
Figure 43. Hydraulic Brake Components
4. With a screwdriver or standard adjusting tool, rotate
the star wheel of the adjuster assembly to expand the
brake shoes.
actuator
Hydraulic surge braking requires the installation of an
actuator at the tongue of the trailer. Remember the surge
or push of the trailer toward the tow vehicle automatically
synchronizes the trailer brakes with the tow vehicle brakes.
As the trailer pushes against the tow vehicle the actuator
telescopes together and applies force to the master
cylinder, supplying hydraulic pressure to the trailer brakes.
5. Adjust the brake shoes outward until the pressure of
the lining against the wheel drum makes the wheel
difficult to turn.
6. Adjust, rotate the star wheel in the opposite direction
until the wheel rotates freely with slight lining drag.
7. Replace the adjusting hole cover and lower the trailer
to the ground.
Periodically check and test the surge “actuator” to make sure
that it is functioning correctly.Never use an undersize actuator.
8. Repeat steps 1 through 7 on the remaining brakes.
Table 12. hydraulic Brake Troubleshooting
symptom
possible Cause
solution
No Brakes
Brake line broken or kinked?
Brake lining glazed?
Repair or replace.
Reburnish or replace.
Correct weight.
Trailer overloaded?
Weak Brakes or Brakes Pull to
One Side
Brake drums scored or grooved?
Tire pressure correct?
Machine or replace.
Inflate all tires equally.
Match tires.
Tires unmatched on the same axle?
Brake components loose, bent or
broken?
Replace components.
Locking Brakes
Noisy Brakes
Brake drums out-of-round?
System lubricated?
Replace.
Lubricate.
Brake components correct?
Replace and correct.
Install new shoes and
linings.
Brake lining thickness incorrect or
not adjusted correctly?
Dragging Brakes
Replace rubber parts
fill with dot 4 fluid.
Enough brake fluid or correct fluid?
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trailer Maintenance
Tires/wheels/lug nuTs
suspension
Tires and wheels are a very important and critical
components of the trailer.When specifying or replacing the
trailer wheels it is important the wheels, tires, and axle are
properly matched.
The leaf suspension springs and associated components
(Figure 44) should be visually inspected every 6,000 miles
for signs of excessive wear, elongation of bolt holes, and
loosening of fasteners. Replace all damaged parts
(suspension) immediately.Torqued suspension components
as detailed in Table 14.
CauTion
alwaYs wear safety glasses when
removing or installing force fitted parts.
Failure to comply may result in serious
injury.
CauTion
Do noT attempt to repair or modify a
wheel. Do noT install in inner tube to
correct a leak through the rim. If the rim
is cracked, the air pressure in the inner
tube may cause pieces of the rim to explode (break off)
with great force and cause serious eye or bodily injury.
Figure 44. Major Suspension Components
Tire wear/inflation
Tire inflation pressure is the most important factor in tire
life. Pressure should be checked cold before operation Do
noT bleed air from tires when they are hot!.Check inflation
pressure weekly during use to insure the maximum tire life
and tread wear.
Table 14. suspension Torque requirements
item
Torque (Ft.-lbs.)
Min-30 Max-35
Min-45 Max-60
Min-45 Max-60
3/8" U-Bolt
7/16" U-Bolt
1/2" U-Bolt
Table 13 (Tire Wear Troubleshooting) will help pinpoint the
causes and solutions of tire wear problems.
Snug fit only. Parts must rotate freely.
Locking nuts or cotter pins are
Shackle Bolt
Spring Eye Bolt
Table 13. Tire wear Troubleshooting
provided to retain nut-bolt assembly.
wear pattern
Cause
solution
Shoulder Type
Shackle Bolt
Min-30 Max-50
Adjust pressure to particular
load per tire manufacturer.
Center Wear Over inflation.
Edge Wear Under inflation.
Adjust pressure to particular
load per tire manufacturer.
Make sure load does not
exceed axle rating.
Align wheels.
Loss of camber
Side Wear
or overloading.
Toe Wear
Cupping
Incorrect toe-in.
Out-of-balance.
Align wheels.
Check bearing adjustment
and balance tires.
Wheel lockup and Avoid sudden stops when
tire skidding. possible and adjust brakes.
Flat Spots
DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13) — page 41
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trailer Maintenance
lug nut Torque requirements
It is extremely important to apply and maintain proper wheel
mounting torque on the trailer. Be sure to use only the
fasteners matched to the cone angle of the wheel. Proper
procedure for attachment of the wheels is as follows:
1. Start all wheel lug nuts by hand.
2. Torque all lug nuts in sequence (see Figure 45). Do
noT torque the wheel lug nuts all the way down.
Tighten each lug nut in 3 separate passes as defined
by Table 15.
3. After first road use, retorque all lug nuts in sequence.
Check all wheel lug nuts periodically.
Table 15. Tire Torque requirements
First pass
FT-lBs
second pass
FT-lBs
Third pass
FT-lBs
wheel size
12"
13"
14"
15"
16"
20-25
20-25
20-25
20-25
20-25
35-40
35-40
50-60
50-60
50-60
50-65
50-65
90-120
90-120
90-120
Figure 45. Wheel Lug Nuts
Tightening Sequence
NOTICE
never use an pneumatic air gun to tighten wheel
lug nuts.
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trailer Wiring diagraM
Figure 46. Trailer/Towing Vehicle Wiring Diagram
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generatOr Wiring diagraM
COLOR CODE
WIRE COLOR
WIRE COLOR
RED
BLACK
B
L
R
W
BLUE
WHITE
BR BROWN
Y
YELLOW
GREEN
G
LB
LG
O
LIGHT BLUE
LIGHT GREEN
ORANGE
GRAY
GR
V
VIOLET
PINK
P
DESIGNATION
SYMBOL
3
2
1
1
2
3
1
2
1
2
1
2
3
MAIN GENERATOR ARMATURE WINDING
MAIN GENERATOR FIELD WINDING
EXCITER ARMATURE WINDING
C J
A
Ar
Fg
ExAr
ExFg
Re
AVR
VR
CT 1,2
A J
C
CN1
CN8
CN4
1
3
CN3
U
V
CN5
CN7
J E
D K B
B K D
EXCITER FIELD WINDING
RECTIFIER
2
1
1
4
3
2
1
2
3
1
2
3
4
E J
CN10 R S T
CN11
CN12
U
V
1
3 1 V U
3
AUTOMATIC VOLTAGE REGULATOR
VOLTAGE REGULATOR (RHEOSTAT)
CURRENT TRANSFORMER
CHANGE-OVER SWITCH,AMMETER
AC.AMMETER
CONNECTER ARRANGEMENT
(WIRING VIEW)
AS
A
Notice:
V
AC.VOLTMETER
1. With no designation use KIV1 : 1.25 mm2
FREQUENCY METER
CIRCUIT BREAKER
CIRCUIT BREAKER
CIRCUIT BREAKER
RECEPTACLE
F
CB1
lead of designated color.
CB2,3
CB4,5
CON1, 2
CON3,4
R1
RECEPTACLE
RESISTOR
RECTIFIER
Re1
RELAY UNIT
J, K
Figure 47. Generator Wiring Diagram
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engine Wiring diagraM
COLOR CODE
WIRE COLOR
WIRE COLOR
RED
BLACK
B
L
R
W
BLUE
WHITE
BR BROWN
Y
YELLOW
GREEN
G
LB
LG
O
LIGHT BLUE
LIGHT GREEN
ORANGE
GRAY
GR
V
VIOLET
PINK
P
Figure 48. Engine Wiring Diagram
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trOuBleshOOting (generatOr)
Practically all breakdowns can be prevented by proper handling and maintenance inspections, but in the event of a
breakdown, use Table 16 shown below for diagnosis of the Generator. If the problem cannot be remedied, consult our
company’s business office or service plant.
Table 16. generator Troubleshooting
symptom
possible problem
AC Voltmeter defective?
Is wiring connection loose?
Is AVR defective?
solution
Check output voltage using a voltmeter.
Check wiring and repair.
No Voltage Output
Replace if necessary.
Defective Rotating Rectifier? Check and replace.
Defective Exciter Field?
Is engine speed correct?
Check for approximately 17.3 ohms across J & K on CN1
Turn engine throttle lever to “High”.
Low Voltage Output
High Voltage Output
Is wiring connections loose? Check wiring and repair.
Defective AVR? Replace if necessary.
Is wiring connections loose? Check wiring and repair.
Defective AVR?
Replace if necessary.
Short Circuit in load?
Over current?
Check load and repair.
Confirm load requirements and reduce.
Check and replace.
Circuit Breaker Tripped
Defective circuit breaker?
Over current Relay actuated? Confirm load requirement and replace.
page 46 — DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13)
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nOtes
DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13) — page 47
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explanatiOn Of cOde in reMarks cOluMn
The following section explains the different symbols and
QTY. Column
remarks used in the Parts section of this manual. Use the
help numbers found on the back page of the manual if there
are any questions.
numbers used — Item quantity can be indicated by a
number, a blank entry, or A/R.
A/R (As Required) is generally used for hoses or other
parts that are sold in bulk and cut to length.
NOTICE
The contents and part numbers listed in the parts
section are subject to change without notice.Multiquip
does not guarantee the availability of the parts listed.
A blank entry generally indicates that the item is not sold
separately.Other entries will be clarified in the“Remarks”
Column.
saMple parTs lisT
reMarks Column
no. parT no. parT naMe
QTY. reMarks
Some of the most common notes found in the “Remarks”
Column are listed below. Other additional notes needed
to describe the item can also be shown.
1
2%
12345
BOLT .....................1 .....INCLUDES ITEMS W/%
WASHER, 1/4 IN. ..........NOT SOLD SEPARATELY
WASHER, 3/8 IN. ..1 .....MQ-45T ONLY
2% 12347
3
4
12348
12349
HOSE ..................A/R ...MAKE LOCALLY
BEARING ..............1 .....S/N 2345B AND ABOVE
assembly/kit — All items on the parts list with the
same unique symbol will be included when this item is
purchased.
no. Column
Indicated by:
unique symbols — All items with same unique
symbol
“INCLUDES ITEMS W/(unique symbol)”
(@, #, +, %, or >) in the number column belong to the
same assembly or kit, which is indicated by a note in the
“Remarks” column.
serial number Break — Used to list an effective serial
number range where a particular part is used.
Indicated by:
Duplicate item numbers — Duplicate numbers indicate
multiple part numbers, which are in effect for the same
general item, such as different size saw blade guards in
use or a part that has been updated on newer versions
of the same machine.
“S/N XXXXX AND BELOW”
“S/N XXXX AND ABOVE”
“S/N XXXX TO S/N XXX”
specific Model number use — Indicates that the part
is used only with the specific model number or model
number variant listed. It can also be used to show a
part is NOT used on a specific model or model number
variant.
NOTICE
When ordering a part that has more than one item
number listed, check the remarks column for help in
determining the proper part to order.
Indicated by:
“XXXXX ONLY”
“NOT USED ON XXXX”
parT no. Column
numbers used — Part numbers can be indicated by a
number, a blank entry, or TBD.
“Make/obtain locally” — Indicates that the part can
be purchased at any hardware shop or made out of
available items.Examples include battery cables, shims,
and certain washers and nuts.
TBD (To Be Determined) is generally used to show a
part that has not been assigned a formal part number
at the time of publication.
“not sold separately”— Indicates that an item cannot
be purchased as a separate item and is either part of an
assembly/kit that can be purchased, or is not available
for sale through Multiquip.
A blank entry generally indicates that the item is not sold
separately or is not sold by Multiquip. Other entries will
be clarified in the “Remarks” Column.
page 48 — DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13)
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suggested spare parts
DCa20spxu2whisperwaTT generaTorwiTh
isuzu Bv-4le2 Diesel engine
1 to 3 units
QTY. p/n
DesCripTion
5............2944566410..........CARTRIDGE , OIL FILTER
1............M1310500803.......HOSE, RADIATOR UPPER
1............M1310500903.......HOSE, RADIATOR LOWER
1............0602011079..........RADIATOR CAP
1............0605505070..........FUEL CAP
1............0602122272..........UNIT, OIL PRESSURE
1............0602123275 .........UNIT, WATER TEMPERATURE
6............8980374810..........FILTER, FUEL CARTRIDGE
6............8944370220..........REPAIR KIT, FUEL PUMP
3............0602046321..........FILTER, AIR (ELEMENT)
1............0601870440..........CIRCUIT BREAKER, 1P, 120V @ 20A
1............0601870441..........CIRCUIT BREAKER, 2P, 250V @ 50A
1............LY2DUS12VDC ....RELAY
1............8972606490..........FAN BELT
1............0601820626..........AUTOMATIC VOLTAGE REGULATOR
1............1601840073..........RHEOSTAT
1............0601840121..........KNOB, RHEOSTAT
NOTICE
Part number on this Suggested Spare Parts list may
supersede/replace the P/N shown in the text pages of
this book.
DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13) — page 49
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generatOr assy.
page 50 — DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13)
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generatOr assy.
no.
1
1-1#
parT no.
B1110001402
parT naMe
QTY.
reMarks
ROTOR ASSY..............................1 ...................INCLUDES ITEMS W/#
FIELD ASSY.................................1 ...................NOT SOLD SEPARATELY
1-2# 7961025004
1-3# 0601822643
1-4# 8001070003
1-5# 8351611004
1-6# 8351612004
1-7# B1112300003
1-8# 0010310025
1-9# 0042510000
1-10# 0601000209
1-11# 0071906308
RECTIFIER
SURGE ABSORBER
FAN
COUPLING DISC
COUPLING HUB WASHER
1
1
1
2
1
BALANCING PLATE.................... 1...................WHENODERING,PURCHASEITEM1-10
HEX HEAD BOLT
WASHER, LOCK
BALANCING WEIGHT KIT
BEARING
HEX HEAD BOLT
WASHER, LOCK
WASHER, FLAT
BEARING
4
4
1
1
6
6
6
1
1
1
1
3
3
1
6
1
1
3
6
6
6
1
1
1
1
2
2
2
0012308035
0040080000
0041208000
0070506803
B1130001503
0845041904
B113700103
0016008045
0042508000
8351315003
0017108035
8351312004
8351331004
0017106016
0010310030
0040001000
0041210000
B0155400204
0010106030
0041206000
0600815000
M9312600004
0207010000
2A
2B
3
4
4-1
5
STATOR ASSY.
GROMMET
FIELD ASSY. EXCITER
HEX HD CAP SCREW
WASHER, LOCK
END BRACKET
HEX HEAD BOLT
PACKING
SUCTION COVER
HEX HEAD BOLT
HEX HEAD BOLT
WASHER, LOCK
WASHER, FLAT
FAN COVER
HEX HEAD BOLT
WASHER, FLAT
NUT
RUBBER SUSPENSION
HEX NUT
6
7
8
9
10
11
12
13
13A
13B
14
15
16
17
18
19
DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13) — page 51
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cOntrOl BOx assy.
50
17A
16A
17
17B
16B
51
16
35A
37A
page 52 — DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13)
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cOntrOl BOx assy.
no.
1
1-1
1-2
2
3
4
5
6
parT no.
parT naMe
CONTROL BOX
EDGING
EDGING
QTY.
reMarks
M1213001402
0330000480
0330000250
0601870433
0021004075
0601842384
0027104010
0601823240
0027104050
0601815759
0027104020
0601820626
0027105016
0601801123
0027106020
0601826031
0027104010
0601824518
0601823143
PYCA1
1
1
1
1
4
1
2
3
1
1
2
1
4
2
4
1
2
2
2
CIRCUIT BREAKER, 3P 90 AMPS
MACHINE SCREW
RESISTOR, 20W 50 OHM
MACHINE SCREW
RECTIFIER, DE45
MACHINE SCREW
TERMINAL BOARD, KT-20 6P
MACHINE SCREW
AUTO. VOLT. REGULATOR, NTA-4A-2S
MACHINE SCREW
CURRENT TRANSFORMER, 150/5A
MACHINE SCREW
RELAY, HE1
7
8
9
10
11
12
13
14
15
16
16A
16B
17
17A
17B
18
19
20
21
22
23
24
25
26
MACHINE SCREW
RELAY, DC 12V
BASE
CLIP ............................................................2 ................REPLACES P/N 0601824400
RELAY, DC 12V...........................................1 ................REPLACES P/N 0601827656
BASE...........................................................1 ................REPLACES P/N 0601823109
CLIP ............................................................1 ................REPLACES P/N 0601824400
MACHINE SCREW
ENGINE CONTROLLER.............................1 ................REPLACES P/N 0602202523
HEX HEAD BOLT
RELAY.........................................................2 ................REPLACES P/N 0602201400
GLOW RELAY.............................................1 ................REPLACES P/N 0602202502
MACHINE SCREW
CONTROL BOX COVER
HEX HEAD BOLT
LY2DUS12VDC
PTF08A
PYCA1
0027104020
8973259120
0016906016
5825500290
8944001061
0027105016
M1213500803
0016906016
0016906015
6
2
4
1
5
9
HEX HEAD BOLT
DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13) — page 53
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cOntrOl BOx assy. (cOntinued)
50
17A
16A
17
17B
16B
51
16
35A
37A
page 54 — DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13)
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cOntrOl BOx assy. (cOntinued)
no.
27
28
29
30
31
32
33
34
35
35A
36
37
37A
38
39
40
41
42
43
44
45
46
47
48
49
50
51
parT no.
parT naMe
CONTROL PANEL
QTY.
1
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
2
4
2
reMarks
M1223001003
0601807641
0601806844
0601801040
0601800271
0601840073
0601840121
0602202545
0027104040
0207004000
0601831340
0602103092
0601810245
0602120095
0602122093
0602123090
0602121080
0602125090
0601810141
0601831330
M1223100104
0027105010
0027105010
M9220100004
0080200007
M1246704404
M1357201902
FREQUENCY METER, 45~65Hz 240V
AC AMMETER, 0~150A
AMMETER, CHANGE-OVER SWITCH
AC VOLTMETER, 0~300V
RHEOSTAT (VR), 2W 1K OHM
KNOB
CONTROLLER, ECU-9988N
MACHINE SCREW
HEX NUT
SWITCH, MPEC
ALARM LAMP, PL-05
BULB, DC 18V
TACHOMETER
OIL PRESSURE GAUGE
WATER TEMP. GAUGE
CHARGING AMMETER
FUEL GAUGE
PANEL LIGHT
SWITCH, PANEL LIGHT
STOPPER
MACHINE SCREW
MACHINE SCREW
SET SCREW
SNAP RING
WIRE HARNESS, GENERATOR
WIRE HARNESS, ENGINE
2
1
1
DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13) — page 55
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engine and radiatOr assy.
9-2
9-3
22A
4
5
17A
6
53
54
11
12
1A
39
40
page 56 — DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13)
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engine and radiatOr assy.
no.
1
1A
1-1
2
3
4
5
6
parT no.
parT naMe
ENGINE, ISUZU 4LE2
FAN BELT
OIL FILTER CARTRIDGE
ENGINE FOOT
ENGINE FOOT
HEX HEAD BOLT
WASHER, LOCK
WASHER, FLAT
RUBBER SUSPENSION
HEX NUT
QTY.
1
1
1
1
1
8
8
8
2
2
1
1
1
1
2
2
2
1
1
4
1
1
1
8
1
1
8
1
1
1
1
2
1
1
3
1
1
reMarks
M1923200104
8972606490
2944566410
M1303200304
M1305200204
0010310025
0040010000
0041210000
0605000066
0207010000
M1923200094
0602011079
M9200100904
0150000016
M9312200104
0016908040
0207008000
M1310500803
M1310500903
0605515069
M1310200003
M1310200103
M1493105004
0016908020
M1310300703
M1310300804
0016908020
0602046531
0602046321
0602040690
0602040552
0016908030
M1373100303
M1373100503
0605515139
0602022560
M1320300304
7
8
9
RADIATOR
9-1
9-2
9-3
10
11
12
13
14
15
16
17
17A
18
19
20
21
22
22A
23
24
25
26
27
28
29
30
RADIATOR CAP
PLUG
O-RING
RUBBER MOUNT
HEX HEAD BOLT
HEX NUT
RADIATOR HOSE, UPPER
RADIATOR HOSE, LOWER
HOSE BAND
FAN SHROUD
FAN SHROUD
ACCOUSTIC SHEET
HEX HEAD BOLT
FAN GUARD
FAN GUARD
HEX HEAD BOLT
AIR CLEANER
AIR CLEANER ELEMENT
AIR CLEANER INDICATOR
AIR CLEANER BRACKET
HEX HEAD BOLT
AIR CLEANER HOSE
AIR CLEANER HOSE
HOSE BAND
ADAPTER
PACKING
DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13) — page 57
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engine and radiatOr assy. (cOntinued)
9-2
9-3
22A
4
5
17A
6
53
54
11
12
1A
39
40
page 58 — DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13)
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engine and radiatOr assy. (cOntinued)
no.
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
parT no.
parT naMe
QTY.
1
1
1
1
1
1
1
1
1
1
2
1
1
4
1
1
1
1
1
1
2
1
1
1
1
1
2
1
reMarks
0602022561
0603306590
0603300285
0605511395
0603306395
0602021070
0269200280
M9602000003
M9200200004
0150000018
0016906020
0199900600
0199900500
0605515106
M9300100003
M9300100003
0199100215
M1317100004
0199100350
0193600850
0605515106
0602120481
0602122272
M9200100004
0602123275
M1353800004
0016908020
M1357300104
0016910020
90 DEGREE ELBOW
CONNECTOR
LOCKNUT
VALVE
HOSE JOINT
CAP
DRAIN HOSE
DRAIN JOINT
PLUG
O-RING
HEX HEAD BOLT
DRAIN HOSE
DRAIN HOSE
HOSE BAND
RESERVE TANK
RESERVE TANK CAP
HOSE
RESERVE TANK BRACKET
HOSE
HOSE
HOSE BAND
TACHOMETER PICK UP
OIL PRESSURE UNIT
ADAPTER
WATER TEMPERATURE UNIT
CLAMPER ROD
HEX HEAD BOLT
CLAMPER ROD
HEX HEAD BOLT
2
DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13) — page 59
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Output terMinal assy.
ADD THE FOLLOWING DIGITS AFTER THE PART
NUMBER WHEN ORDERING ANY PAINTED PANEL TO
INDICATE COLOR OF UNIT:
1-ORANGE
5-BLACK
2-WHITE
6-CATERPILLAR YELLOW
7-CATO GOLD
8-RED
3-SPECTRUM GREY
4-SUNBELT GREEN
THE SERIAL NUMBER MAY BE REQUIRED.
page 60 — DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13)
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Output terMinal assy.
no.
1
2
3
4
5
6
7
8
parT no.
parT naMe
QTY.
1
4
4
8
12
16
4
1
1
2
4
4
4
4
4
2
2
reMarks
M1230700203
M9220000204
M9220000104
0039308000
0040008000
0041408000
0016906025
M1236101503
M1236100404
0605010040
0027103010
0030003000
0041203000
0027103010
0030003000
M9220100804
0040006000
0041206000
TERMINAL PANEL
OUTPUT TERMINAL BOLT
TIE BOLT
HEX BRASS NUT
WASHER, LOCK
WASHER, FLAT
HEX HEAD BOLT
TERMINAL COVER
OUTPUT WINDOW
HINGE
MACHINE SCREW
HEX HEAD NUT
WASHER, FLAT
9
10
11
11A
11B
12
12A
13
13A
13B
MACHINE SCREW
HEX HEAD NUT
SET SCREW
WASHER, LOCK
WASHER, FLAT
2
13C 0080200005
RETAINING RING
HEX HEAD BOLT
CABLE OUTLET COVER
CABLE OUTLET COVER SUPPORTER
HEX HEAD BOLT
TERMINAL
MACHINE SCREW
CIRCUIT BREAKER, 2P 50A
CIRCUIT BREAKER, 1P 20A
BREAKER FITTING COVER
RUBBER CUSHION
HEX HEAD BOLT
RECEPTACLE, 125V 20A (GF-20LA)
RECEPTACLE, 250V 50A (CS6369)
MACHINE SCREW
HEX NUT
2
4
1
1
6
1
2
2
2
1
2
2
2
2
8
8
1
4
1
2
2
2
2
14
15
16
17
18
19
20
21
22
0016906016
M1236400004
M1236300004
0016906020
0601815194
0027104016
0601870441
0601870440
M1260700404
22-1 0222100080
23
24
25
26
26A
27
28
29
30
31
32
33
0016906020
0601814013
0601812538
0027104016
0207004000
M1236400104
0016906016
M1236100503
0010112045
0041212000
M9310200004
0030012000
COVER
HEX HEAD BOLT
TERMINAL COVER
HEX HEAD BOLT
WASHER, FLAT
RUBBER STAY
HEX NUT
DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13) — page 61
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Battery assy.
page 62 — DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13)
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Battery assy.
no.
1
2
3
4
5
6
7
8
8A
parT no.
parT naMe
BATTERY
QTY.
reMarks
0602220185
B9310500014
M9103000304
0602220920
0040006000
M1348400204
M2346400104
0016910020
0040510000
1
1
1
2
2
1
1
1
3
BATTERY SHEET
BATTERY BAND
BATTERY BOLT SET
WASHER, LOCK
BATTERY CABLE
BATTERY CABLE
HEX HEAD BOLT
TOOTHED WASHER
DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13) — page 63
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Muffler assy.
page 64 — DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13)
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Muffler assy.
no.
1
2
3
4
5
6
7
8
parT no.
parT naMe
MUFFLER
HEX HEAD BOLT
EXHAUST PIPE
GASKET
GASKET
HEX NUT
HEX HEAD BOLT
COVER
QTY.
reMarks
M1330100803
0016908020
M1333002803
0602320100
M1333200014
0207008000
0016908035
M1330400804
0016906016
49685
1
4
1
1
1
4
4
2
4
1
1
9
10
11
HEX HEAD BOLT
TUBE, EXHAUST EXTENSION
CLAMP, 2" MUFFLER SADDLE
12597
DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13) — page 65
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fuel filter assy.
14A
17A
page 66 — DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13)
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fuel filter assy.
no.
14
14A
15
16
17
17A
18
19
20
21
22
23
24
parT no.
parT naMe
QTY.
reMarks
8943672922
8943692993
M1366700104
0016908020
8970398340
8944370220
0016906025
0191200900
0191200300
0191200650
0191201100
0605515108
0605515198
FUEL FILTER ..............................................1 ................REPLACES P/N 0602042202
FUEL FILTER CARTRIDGE........................1 ................REPLACES P/N 0602042700
FUEL FILTER BRACKET
HEX HEAD BOLT
FUEL PUMP................................................1 ................REPLACES P/N 0602023177
FUEL FILTER (FUEL PUMP) ......................1 ................REPLACES P/N 0602042425
HEX HEAD BOLT
SUCTION HOSE
SUCTION HOSE
SUCTION HOSE
RETURN HOSE
HOSE BAND
1
6
2
1
1
1
1
2
2
HOSE BAND
DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13) — page 67
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enclOsure assy.
page 68 — DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13)
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enclOsure assy.
no.
1
2
3
4
4A
5
6
parT no.
parT naMe
BASE
QTY.
reMarks
M1413003302
M1413400004
0016908020
M1423002302
M1493104903
0016908020
49727
1
1
2
1
1
4
1
UNDER COVER
HEX HEAD BOLT
FRONT FRAME
ACOUSTIC SHEET
HEX HEAD BOLT
PANEL,UPPER BALLAST COVER
6A
7
7A
8
60131
49726
WEATHERSTRIP .......................................12 ...............1 PC = 1 FT.
PANEL, LOWER BALLAST COVER
HEX HEAD BOLT
CENTER FRAME
CENTER FRAME
HEX HEAD BOLT
WASHER, LOCK
WASHER, FLAT
REAR FRAME
1
11
1
1
8
8
8
1
4
1
1
1
7
7
1
1
8
8
1
4
4
2
2
3
2
1
1
18
1
1
1
2
2
2
2
0019208020
M1433000203
M1433000303
0010114030
0040014000
0041214000
M1443001902
0016908020
M1443301803
M1443301703
M1493303604
0207006000
0019208020
M1443200613
M1443600114
0037906000
0041206000
M9113000002
0021806016
0030006000
M9110100204
M9116100004
0019208020
M9310000004
M1463002202
M1493502903
0019208020
M3310600004
0019208020
M1453201202
0019108055
0042308000
0042408000
0016908020
9
10
10A
10B
11
12
13
14
14A
15
16
17
18
19
19A
20
21
21A
22
23
24
25
26
26A
27
28
29
30
31
31A
31B
32
HEX HEAD BOLT
REAR COVER
REAR COVER DUCT
ACOUSTIC SHEET
HEX NUT
HEX HEAD BOLT
REAR DOOR
WINDOW PLATE
U-NUT
WASHER, FLAT
DOOR HANDLE ASSY.
MACHINE SCREW
HEX HEAD NUT
HINGE
WASHER
HEX HEAD BOLT
BLIND PLUG
ROOF PANEL
ACOUSTIC SHEET
HEX HEAD BOLT
ROOF COVER
HEX HEAD BOLT
SPLASHER PANEL
HEX HEAD BOLT
WASHER, LOCK
WASHER, FLAT
HEX HEAD BOLT
DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13) — page 69
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enclOsure assy. (cOntinued)
page 70 — DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13)
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enclOsure assy. (cOntinued)
no.
33
33A
34
34A
35
35A
36
36A
37
38
39
40
40A
41
42
43
44
45
46
47
48
49
50
50A
51
51A
52
52A
53
parT no.
parT naMe
SIDE DOOR
ACOUSTIC SHEET
SIDE DOOR
ACOUSTIC SHEET
SIDE DOOR
ACOUSTIC SHEET
SIDE DOOR
ACOUSTIC SHEET
DUCT
HEX NUT
DOOR HANDLE ASSY.
MACHINE SCREW
HEX HEAD NUT
HINGE
HINGE
WASHER
HEX HEAD BOLT
DOOR STOPPER
MACHINE SCREW
BLIND PLUG
QTY.
1
1
1
1
1
1
1
1
1
8
3
12
12
4
4
8
9
8
8
8
1
2
1
1
1
1
1
1
1
1
4
reMarks
M1453003803
M1493405604
M1453003903
M1493405704
M1453004003
M1493405804
M1453004703
M1493409404
M1453301403
0207006000
B9114000002
0021806016
0030006000
M9110100204
M9110100304
M9116100004
0019208020
0601850097
0027208025
M9310000004
0600500090
0025106016
0016910020
0040510000
0016908020
0040508000
0016906020
0040506000
0600800321
M1483600804
0016906016
EMBLEM
MACHINE SCREW
HEX HEAD BOLT
TOOTHED WASHER
HEX HEAD BOLT
TOOTHED WASHER
HEX HEAD BOLT
TOOTHED WASHER
MANUAL HOLDER
MANUAL HOLDER CLAMP
HEX HEAD BOLT
54
55
DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13) — page 71
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ruBBer seals assy.
page 72 — DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13)
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ruBBer seals assy.
no.
1
2
3
4
5
6
7
8
parT no.
parT naMe
QTY.
2
3
1
1
1
1
1
1
1
1
2
1
2
1
1
1
reMarks
0228901150
0228900695
0228900755
M1490300004
0228800325
0229400430
0228900540
0228900550
0229200595
0228900610
0229200750
0229200740
0228800670
0228800525
0228800565
0228100458
0228100171
0228100351
0228100285
0228100153
0228100180
RUBBER SEAL
RUBBER SEAL
RUBBER SEAL
RUBBER SEAL
RUBBER SEAL
RUBBER SEAL
RUBBER SEAL
RUBBER SEAL
RUBBER SEAL
RUBBER SEAL
RUBBER SEAL
RUBBER SEAL
RUBBER SEAL
RUBBER SEAL
RUBBER SEAL
RUBBER SEAL
RUBBER SEAL
RUBBER SEAL
RUBBER SEAL
RUBBER SEAL
RUBBER SEAL
9
10
11
12
13
14
15
16
17
18
19
20
21
1
1
1
1
1
DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13) — page 73
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naMeplate and decals assy.
page 74 — DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13)
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naMeplate and decals assy.
no.
1
2
3
4
5
6
7
8
parT no.
parT naMe
QTY.
reMarks
M1550001803
M1550001904
M1550003902
M1550004002
M1550004103
M9500000004
M9500100004
M9500300004
M9500300104
M9500500104
M9500500304
M9503000004
M9503000103
M9503100004
M9503200004
M9503200104
M9510000104
M9510100004
M9510200002
M9520000004
M9520000104
M9520000504
M9520100004
M9520100304
M9520100404
M9520100503
M9520100603
M9521000004
M1560102604
M1560102604
M1560101604
M1560101704
M1560101804
DECAL; AUXILIARY OUTPUT ..................................1 ........... M15000180
DECAL; CAUTION.....................................................1 ........... M15000190
DECAL; GENERATOR CONTROL............................1 ........... M15000390
DECAL; ENGINE OPERATING.................................1 ........... M15000400
DECAL; OPERATING PROCEDURES......................1 ........... M15000410
DECAL; OIL DRAIN PLUG........................................1 ........... M90000000
DECAL; WATER ........................................................1 ........... M90010000
DECAL; - ...................................................................1 ........... M90030000
DECAL; +...................................................................1 ........... M90030010
DECAL; FUEL DRAIN PLUG ....................................1 ........... M90050010
DECAL; DIESEL FUEL..............................................1 ........... M90050030
DECAL; WARNING....................................................2 ........... M90300000
DECAL; WATER - OIL CHECK..................................1 ........... M90300010
DECAL; WARNING....................................................1 ........... M90310000
DECAL; WARNING....................................................1 ........... M90320000
DECAL; DANGER .....................................................1 ........... M90320010
DECAL; DOCUMENT BOX LOCATED......................1 ........... M91000010
DECAL; CAUTION.....................................................2 ........... M91010000
DECAL; MQ...............................................................1 ........... M91020000
DECAL; GROUND.....................................................1 ........... M92000000
DECAL; AMMETER CHANGE-OVER SW ................1 ........... M92000010
DECAL; START CONTACT........................................1 ........... M92000050
DECAL; WARNING....................................................2 ........... M92010000
DECAL; SAFETY INSTRUCTIONS...........................1 ........... M92010030
DECAL; DANGER .....................................................1 ........... M92010040
DECAL; WARNING....................................................1 ........... M92010050
DECAL; CAUTION.....................................................1 ........... M92010060
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
DECAL; TERMINAL
STRIPE; WHISPERWATT
STRIPE; 20
DECAL; MQ POWER
STRIPE
STRIPE
1
1
2
2
2
2
DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13) — page 75
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terMs and cOnditiOns Of sale — parts
5. Parts must be in new and resalable
condition, in the original Multiquip
package (if any), and with Multiquip part
numbers clearly marked.
Multiquip reserves the right to quote and
sell direct to Government agencies, and to
Original Equipment Manufacturer accounts
who use our products as integral parts of their
own products.
paYMenT TerMs
Terms of payment for parts are net 30 days.
FreighT poliCY
6. The following items are not returnable:
All parts orders will be shipped collect or
prepaid with the charges added to the invoice.
All shipments are F.O.B. point of origin.
Multiquip’s responsibility ceases when a
signed manifest has been obtained from the
carrier, and any claim for shortage or damage
must be settled between the consignee and
the carrier.
a. Obsolete parts. (If an item is in the
price book and shows as being
replaced by another item, it is
obsolete.)
speCial expeDiTing serviCe
A $35.00 surcharge will be added to the
invoice for special handling including bus
shipments, insured parcel post or in cases
where Multiquip must personally deliver the
parts to the carrier.
b. Any parts with a limited shelf life
(such as gaskets, seals, “O” rings,
and other rubber parts) that were
purchased more than six months
prior to the return date.
liMiTaTions oF seller’s liaBiliTY
MiniMuM orDer
Multiquip shall not be liable hereunder for
damages in excess of the purchase price of
the item with respect to which damages are
claimed, and in no event shall Multiquip be
liable for loss of profit or good will or for any
other special, consequential or incidental
damages.
The minimum charge for orders from Multiquip
is $15.00 net. Customers will be asked for
instructions regarding handling of orders not
meeting this requirement.
c. Any line item with an extended
dealer net price of less than
$5.00.
d. Special order items.
reTurneD gooDs poliCY
e. Electrical components.
f. Paint, chemicals, and lubricants.
g. Decals and paper products.
h. Items purchased in kits.
Return shipments will be accepted and
credit will be allowed, subject to the following
provisions:
liMiTaTion oF warranTies
No warranties, express or implied, are
made in connection with the sale of parts or
trade accessories nor as to any engine not
manufactured by Multiquip. Such warranties
made in connection with the sale of new,
complete units are made exclusively by a
statement of warranty packaged with such
units, and Multiquip neither assumes nor
authorizes any person to assume for it
any other obligation or liability whatever in
connection with the sale of its products. Apart
from such written statement of warranty,
there are no warranties, express, implied or
statutory, which extend beyond the description
of the products on the face hereof.
1. A Returned Material Authorization
must be approved by Multiquip prior to
shipment.
7. The sender will be notified of any material
received that is not acceptable.
8. Such material will be held for five
working days from notification, pending
instructions. If a reply is not received
within five days, the material will be
returned to the sender at his expense.
2. To obtain a Return Material Authorization,
a list must be provided to Multiquip
Parts Sales that defines item numbers,
quantities, and descriptions of the items
to be returned.
9. Credit on returned parts will be issued
at dealer net price at time of the original
purchase, less a 15% restocking
charge.
a. The parts numbers and descriptions
must match the current parts price
list.
b. The list must be typed or computer
generated.
10. In cases where an item is accepted, for
which the original purchase document
can not be determined, the price will be
based on the list price that was effective
twelve months prior to the RMA date.
c. The list must state the reason(s)
for the return.
Effective: February 22, 2006
d. The list must reference the sales
order(s) or invoice(s) under
which the items were originally
purchased.
11. Credit issued will be applied to future
purchases only.
priCing anD reBaTes
e. The list must include the name
and phone number of the person
requesting the RMA.
Prices are subject to change without prior
notice. Price changes are effective on a
specific date and all orders received on or
after that date will be billed at the revised price.
Rebates for price declines and added charges
for price increases will not be made for stock
on hand at the time of any price change.
3. AcopyoftheReturnMaterialAuthorization
must accompany the return shipment.
4. Freight is at the sender’s expense. All
parts must be returned freight prepaid to
Multiquip’s designated receiving point.
page 76 — DCa20spxu2 (wiTh MlT20 series) • operaTion anD parTs Manual — rev. #0 (01/18/13)
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OperatiOn and parts Manual
HERE’S HOW TO GET HELP
PLEASE HAVE THE MODEL AND SERIAL
NUMBER ON-HAND WHEN CALLING
United StateS
Multiquip Corporate Office
MQ Parts Department
18910 Wilmington Ave.
Carson, CA 90746
Contact: [email protected]
Tel. (800) 421-1244
Fax (310) 537-3927
800-427-1244
310-537-3700
Fax: 800-672-7877
Fax: 310-637-3284
Service Department
Warranty Department
800-421-1244
310-537-3700
Fax: 310-537-4259
Fax: 310-943-2238
800-421-1244
310-537-3700
Fax: 310-943-2249
Technical Assistance
800-478-1244
mexico
United Kingdom
MQ Cipsa
Multiquip (UK) Limited Head Office
Carr. Fed. Mexico-Puebla KM 126.5
Momoxpan, Cholula, Puebla 72760 Mexico
Contact: [email protected]
Tel: (52) 222-225-9900
Unit 2, Northpoint Industrial Estate, Tel: 0161 339 2223
Fax: (52) 222-285-0420 Globe Lane,
Dukinfield, Cheshire SK16 4UJ
Contact: [email protected]
Fax: 0161 339 3226
Canada
Multiquip
4110 Industriel Boul.
Laval, Quebec, Canada H7L 6V3
Contact: [email protected]
Tel: (450) 625-2244
Tel: (877) 963-4411
Fax: (450) 625-8664
© COPYRIGHT 2013, MULTIQUIP INC.
Multiquip Inc, the MQ logo are registered trademarks of Multiquip Inc. and may not be used, reproduced, or altered without written permission. All other trademarks are the property
of their respective owners and used with permission.
This manual MUsT accompany the equipment at all times. This manual is considered a permanent part of the equipment and should remain with the unit if resold.
The information and specifications included in this publication were in effect at the time of approval for printing. Illustrations, descriptions, references and technical data contained in
this manual are for guidance only and may not be considered as binding. Multiquip Inc. reserves the right to discontinue or change specifications, design or the information published
in this publication at any time without notice and without incurring any obligations.
Your Local Dealer is:
pn 49840
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