R
PORTABLE GASOLINE
GENERATORS
OWNER’S OPERATION AND INSTALLATION MANUAL
FUEL
F
120 VOLTS
RESET
RESET
TEST
FULL POWER
SELECTOR
120/240 VOLTS
120
ONLY
RESET
RESET
120
240V
Generator Models: MGH3000, MGH4000A, MGH5000A, MGH6000, and MGH7000
IMPORTANT
Read and understand this manual before operating or servicing
generator. Improper use of generator can cause serious injury.
Keep this manual for future reference.
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SAFETY
INFORMATION
WARNINGS
IMPORTANT: Read this owner’s manual and the engine owner’s
manual carefully. Become familiar with this generator before trying to
operate or service it. Know its uses, limitations, and any hazards
involved. Improper use of generator can cause severe injury or death
from explosion, fire, burns, electrical shock, or carbon monoxide
poisoning.
DANGER
Carbon monoxide poisoning may lead to death!
Engine exhaust contains poisonous carbon monoxide gas. Overexposure will
cause loss of consciousness and will lead to death. Use only in well-vented areas.
Make sure area has plenty of free-moving, fresh, outside air. Never run generator
in an enclosed or confined area. Never run generator inside occupied building.
Early signs of carbon monoxide poisoning resemble the flu, with headaches,
dizziness, and nausea. If you have these signs, get fresh air at once! Some people
are more affected by carbon monoxide than others. These include pregnant
women, persons with heart or lung disease or anemia, those under the influence of
alcohol, and those at high altitudes. Make certain you read and understand all
warnings. Keep this manual for reference. It is your guide to safe and proper
operation of this generator.
Safety information appears throughout these instructions. Pay close attention to
them. Below are definitions for the safety information listed throughout this
manual.
DANGER indicates a hazard which will cause severe personal injury,
death, or substantial property damage if you ignore warning.
WARNING indicates a hazard which can cause severe personal injury,
death, or substantial property damage if you ignore warning.
CAUTION indicates a hazard which will or can cause minor personal
injury or property damage if you ignore warning.
!
WARNING
1.
Gasoline presents a hazard of fire or explosion. Gasoline is
flammable. Its vapor is explosive.
• Keep fuel out of children’s reach.
• Refuel generator in a well-vented area. Do not fill fuel tank in the dark. Do
not refuel while engine is running. Unhook all electrical loads and shut off
engine before refueling.
• Do not overfill fuel tank. Always allow room for fuel to expand. If you
overfill tank, fuel can overflow onto hot generator. This can cause fire or
explosion. After refueling, tightly close fuel tank cap.
• Do not spill fuel. Fuel or fuel vapor may ignite. If fuel spills, make sure
area is dry before starting engine.
• Never smoke in refueling area. Never allow open flames or sparks in area.
• Store fuel in approved container. Store fuel in a well-vented area free of
open flames or sparks.
Continued
3
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SAFETY
!
WARNING
2.
Guard against fire hazard. Keep operation area well-vented.
INFORMATION
Keep generator at least three feet away from any object. Do not place flam-
mable objects near generator.
Continued
• Do not use generator where flammable vapors are present. Some vapors
are heavier than air. These vapors settle in low-lying places.
• Do not use generator in enclosed spaces. This includes motor home or RV
generator compartments.
!
WARNING
3.
Guard against electric shock. Generator produces high voltage.
This high voltage can cause severe electric shock. Only responsible adults
should use generator.
• Properly ground generator before starting.
• Never let anyone operate or service generator without proper instructions.
• Avoid contact with live terminals or bare wires.
• Do not use generator outdoors in rain or snow.
• Do not use generator near standing water or snow.
• Do not use if generator is wet or damp.
• Do not use generator in highly conductive areas. These areas include metal
decking and steelwork.
• Only use grounded extension cords.
• Do not use any worn or damaged electric cords. Electric shock or damage
to generator may result.
• Do not wear damp clothing or wet shoes when using generator.
!
WARNING
4.
Guard against burns. Hot engine parts can cause severe injury.
Use caution and remain alert when using generator.
• Keep children and animals away from generator while it is running or hot.
• Keep all covers and shields in place. Keep them tightly secured.
• The muffler becomes very hot during operation. The muffler remains hot
for a while after shutdown. Do not touch muffler while it is hot. Do not let
muffler touch anything flammable. Let engine cool before transporting or
storing.
!
WARNING
5.
6.
Have standby installation to home or building performed by a
licensed electrician. Do not let anyone else wire into a utility circuit. Personal
injury, equipment damage, or damage to home could occur.
!
WARNING
Never connect generator to any existing electrical circuits. The
generator output will back-feed into the utility power line. This may electro-
cute a power company line repair person. Also, if generator is powering
electrical circuits, the chance of an electrical fire exists.
!
WARNING
7.
Battery gives off explosive gases. Keep sparks, flames, and
cigarettes away. Do not remove or install battery cables when engine is
cranking or running. Only service or use battery in a well-vented area.
Continued
4
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SAFETY
!
WARNING
8.
9.
Battery contains sulfuric acid. Battery acid is poisonous if
INFORMATION
swallowed. Contact with skin or eyes may cause severe burns. Do not tilt
generator with battery installed. Tilting could cause battery acid to spill. Wear
protective clothing and face shield when servicing. Keep out of children’s
reach.
Continued
!
WARNING
Only a qualified electrical service person should service and
repair generator.
• Generator produces high voltage. Use extreme caution when working on
electrical parts.
• Always remove spark plug wire from spark plug before servicing. This
will prevent accidental starting.
• When working on generator, avoid hot muffler, exhaust manifold, and
engine parts. Severe burns may occur.
• Do not work on generator when tired.
• Use only factory approved replacement parts.
!
WARNING
10.
11.
Store generator in a well-vented area. Make sure fuel tank is
empty. Never store with fuel in tank. Vapors may reach an open flame or
spark. Fire or explosion may result.
!
CAUTION
Never operate generator
• if engine speed changes greatly
• if engine misfires often
• if powered items overheat
• if electrical output drops
• if it is sparking
• if it produces smoke or flames
• if it vibrates at high levels
• if it has a damaged receptacle
!
CAUTION
12.
Keep generator and nearby areas clean.
• Keep generator free of oil, mud, and other foreign matter.
• Remove anything that creates slippery areas around generator.
• Remove oily rags and other items that create fire hazards.
• Keep a fire extinguisher nearby. Make sure it is rated ABC by the NFPA.
They are good for all uses. Consult your local fire department.
• Keep fire extinguisher well maintained. Be familiar with its use.
!
CAUTION
13.
14.
Know how to stop engine quickly. Know how to use all
controls.
!
CAUTION
Prolonged exposure to loud noise can cause hearing loss.
• When working around generator, wear approved hearing protection.
• Remember neighbors when using generator.
5
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PRODUCT
IDENTIFICATION
Gas Cap/Fuel Gage
Control
Panel
FUEL
F
Run
Lamp
120 Volt
Receptacle
120 VOLTS
RESET
RESET
TEST
FULL POWER
SELECTOR
120/240 VOLTS
120
ONLY
RESET
RESET
120
240V
Provision for
Auto-Idle Switch
120 Volt
Receptacle
(GFCI)
Full Power
Selector
Switch
Roll Cage
Gas Tank
120/240 Volt
Receptacle
Circuit
Breaker
Choke
Lever
FUEL
F
Fuel
Valve
Lever
Ground
Lug
Starter Grip
Engine
Alternator
Engine
Oil Dipstick
ON/OFF
Switch
Figure 1 - Portable Generator (Model MGH4000A Shown)
6
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Master portable generators are rugged and compact. These models provide depend-
able, trouble-free service. The alternators are brushless with revolving fields. Honda
gasoline engines provide long life under heavy use. Honda engines have overhead
valves (OHV). This provides high performance with lower fuel consumption. These
engines are governed to maintain engine speed of 3600 RPM under load. 3600 RPM
engine speed provides 120/240V, 60 Hz power.
GENERAL
INFORMATION
Additional Features
• Circuit breaker protection
• Spark-arresting muffler
• Large fuel tank
• Oil alert system
• Electric starter (model MGH7000 only)
• 15-Amp ground fault circuit interrupter (GFCI) receptacle
MODEL
MGH3000 MGH4000A MGH5000A
MGH6000
MGH7000
SPECIFICATIONS
Electrical Specifications
Rated Wattage
2500
4000
5000
6000
6800
Rated Amperage
120 Volt
20.8
––
33.3
16.7
41.7
20.8
50
25
57
28.3
240 Volt
Receptacle Specifications
120-Volt, 15-Amp GFCI
120-Volt, Twist-Lock
Yes
No
Yes
30 Amp
20 Amp
Yes
Yes
30 Amp
20 Amp
Yes
Yes
30 Amp
20 Amp
Yes
Yes
30 Amp
30 Amp
No
120/240-Volt, Twist-Lock
No
120-Volt Full-Power Switch No
General Specifications
Honda Engine H.P.
Honda Model
5.5
8
9
11
13
GX160K1VX GX240K1VA
GX270VA
GX340K1VA GX390K1VXE
Fuel Type
Gasoline Gasoline Gasoline
Gasoline Gasoline
Fuel Tank Capacity
Oil Alert System
Start Method
3.9 qt.
Yes
5 gal.
Yes
5 gal.
Yes
5 gal.
Yes
5 gal.
Yes
Recoil
85.5
Recoil
139
Recoil
173
Recoil
191
Electric
247
Weight (pounds)
* Single-phase, 1.0 power factor
Note: Ratings apply to SAE standard conditions. Reduce ratings 3 1/2% for each 1000 feet
above sea level and 1% for each 10° Fahrenheit rise above 60°F.
1. Remove generator from carton.
UNPACKING
2. Remove any protective packaging applied to generator for shipment.
3. Check for loose or missing parts. Check for shipping damage. If any parts are
missing or damaged, promptly inform dealer where you bought generator.
4. Battery cables are supplied for model MGH7000 only. These cables are in a
separate bag inside generator carton. You must install these cables to engine.
See Battery, page 12 for installation instructions.
7
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VENTILATION
DANGER
Use only in well-vented areas. Make sure area has
plenty of free-moving, fresh, outside air. Never run
generator in an enclosed or confined area. Never run
generator inside occupied building. Engine exhaust
contains poisonous carbon monoxide gas.
Overexposure will cause loss of consciousness
and will lead to death.
This generator needs cooling air to run properly. Never block free-flowing,
cooling air to generator. Overheating will occur without cooling air. This will
damage the generator. Keep generator at least three feet away from any object.
DUST, DIRT,
RAIN, AND
SNOW
WARNING
Do not use generator outdoors in rain or snow. Do
not use generator near standing water or snow. Do
not use if generator is wet or damp. Operating
generator in these conditions increases the risk of
electrocution. Severe injury or death can occur.
Do not use generator in extremely dusty or dirty conditions. This will severely
affect its life. Keep generator clean. Do not allow dust, dirt, rain, or snow to
collect on it. Protect generator from outdoor elements.
Air temperature affects generator output. Output drops 1% for each 10° tempera-
ture rise above 60° F. Very low temperatures may make the engine hard to start.
See engine owner’s manual for more information.
HIGH AND LOW
TEMPERATURE
OPERATION
8
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OIL ALERT SYSTEM
GENERATOR
FEATURES
The oil alert system protects the engine from low oil damage. This system auto-
matically shuts down the engine and prevents engine restarting if the oil level falls
too low.
Note: When this happens, the engine switch remains in the ON position. The oil
alert system is wired into the ON/OFF Switch.
If this system shuts down the engine, the engine will not start until you add oil.
Add oil to engine (see Engine Oil, page 11).
Note: Operate generator on a level surface. If not level, the oil may flow away
from the oil level sensing device. This will cause the oil alert system to shut down
engine.
See engine owner’s manual for more information.
HONDA
ENGINE SW
ON
ON
OFF
START
All Models
Except
OFF
Model
MGH7000
Only
MGH7000
ENGINE SW
CIRCUIT
BREAKER
Figure 2 - Engine Switch Location
FULL POWER SELECTOR SWITCH
All models except MGH3000 and MGH7000 have a full power selector switch on
the control panel. The switch has two positions: 120 VOLT ONLY, and 120/240
VOLT.
120 VOLT ONLY: This position sends full power to the 120V receptacles only.
240V power is not available. Use this position when powering 120V items only.
120/240 VOLT: This position sends full power to the 120/240V receptacle. It also
powers the 120V receptacles at reduced wattage capacity.
FULL POWER
SELECTOR
FULL POWER
SELECTOR
120V
120
120V
120
ONLY
240V
ONLY
240V
120/240 VOLT Position
120 VOLT ONLY Position
Figure 3 - Full Power Selector Switch
IMPORTANT: Do not move the full power selector switch while powering
electrical items. Unplug all items before moving switch. Failure to do so can
damage switch. Model MGH7000 does not have this switch. This model provides
full power to all receptacles.
ELECTRIC START (Model MGH7000 Only)
Model MGH7000 has an electric starter. A battery is not supplied with generator.
You must provide a 12-volt, 32-amp-hour battery. For more battery information,
see Battery, page 12.
9
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GROUND FAULT CIRCUIT INTERRUPTER RECEPTACLE
GENERATOR
All models have a 120-volt ground fault circuit interrupter (GFCI) receptacle. The
GFCI receptacle is on the control panel or top cover of alternator (model
MGH3000 only). The GFCI protects you against hazardous electrical shock
caused when your body becomes a path through which electricity travels to reach
ground. This could happen when you touch an appliance or cord that is ‘live’
through faulty mechanism, damp or worn insulation, etc.
FEATURES
Continued
When protected by the GFCI, you may still feel a shock, but the GFCI should cut
it off quickly. A person in normal health should not receive serious injury. Note:
Infants and very small children may still be affected.
Test Procedure
Check the GFCI receptacle every month. This insures it is working right.
1. Push black TEST button. Red RESET button should pop out. This should trip
GFCI, resulting in no electrical power at receptacle. Verify this by plugging
test lamp with good bulb into receptacle. If lamp does not work, GFCI recep-
tacle is good.
WARNING
If RESET button does not pop out, do not use the GFCI
receptacle. Contact a qualified electrician for repairs.
2. If the GFCI receptacle tests okay, restore power by pushing the RESET button
back in. The test lamp should work at this time. IMPORTANT: You must
press the RESET button firmly and fully. It should lock into place. If the GFCI
does not lock into place, do not use receptacle. Contact a qualified electrician
for repairs.
RESET
TEST
Figure 4 - GFCI Receptacle
ENGINE CIRCUIT BREAKER (Model MGH7000 Only)
This circuit breaker protects the battery charging circuit. A short circuit will trip
the circuit breaker. The circuit breaker will also trip if you install battery wrong.
Push circuit breaker button to reset.
ON
OFF
START
Engine Circuit
Breaker Button
ENGINE SW
CIRCUIT
BREAKER
ON/push OFF
Figure 5 - Engine Circuit Breaker
10
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RECEPTACLE CIRCUIT BREAKER
GENERATOR
The circuit breakers protect the receptacles and alternator. Overloading generator
will trip circuit breaker. A short circuit in item being powered will also trip
breaker. If this occurs, unplug electrical load from receptacle. Let circuit breaker
cool down. Push circuit breaker button to reset.
FEATURES
Continued
Electric motors need higher starting current. They require up to three-times their
rated wattage to start. The starting current needed may be too high. This can cause
nuisance circuit breaker tripping. To help prevent this, start electric motors first.
Connect additional items to generator after starting motors. If this continues to
happen, reduce the total generator load.
20
20
Normal
Tripped
Figure 6 - Receptacle Circuit Breaker Button
We ship the generator without oil in the engine crankcase. You must add oil
before starting engine. See engine owner’s manual for specific oil type.
ENGINE OIL
CHECKING OIL LEVEL AND ADDING OIL
Follow steps below to check oil level. Make sure engine is level and stopped.
1. Remove dipstick (see Figure 7). Wipe dipstick clean.
2. Insert dipstick into oil filler neck. Do not screw it in. Oil level should be at top
of filler neck. Oil should cover most of dipstick.
3. If level is low, fill to top of oil filler neck (see Figure 7). Only use oil recom-
mended in engine owner’s manual.
Note: If oil level is too low, oil alert system will shutdown engine and prevent
engine from restarting.
Oil Level
At Top Of
Filler Neck
Dipstick
Oil
Figure 7 - Checking Oil Level
11
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FUEL
WARNING
Gasoline presents a hazard of fire or explosion.
Gasoline is flammable. Its vapor is explosive.
• Keep fuel out of children’s reach.
• Refuel generator in a well-vented area. Do not fill
fuel tank in the dark. Do not refuel while engine is
running. Unhook all electrical loads and shut off
engine before refueling.
• Do not overfill fuel tank. Always allow room for
fuel to expand. If you overfill tank, fuel can over-
flow onto hot engine. This can cause fire or
explosion. After refueling, tightly close fuel tank
cap.
• Do not spill fuel. Fuel or fuel vapor may ignite. If
fuel spills, make sure area is dry before starting
engine.
• Never smoke in refueling area. Never allow open
flames or sparks in area.
• Store fuel in approved container. Store fuel in a
well-vented area free of open flames or sparks.
Use clean, fresh, unleaded gasoline. Use gasoline with octane rating of 86 or
higher. Service station gasoline pumps should display the octane rating. Using
gasoline with lower octane level could damage engine. Avoid getting dirt, dust, or
water in fuel tank. Do not mix oil with gasoline.
See engine owner’s manual for more information.
BATTERY
(Model MGH7000 Only)
WARNING
Battery gives off explosive gases. Keep sparks,
flames, and cigarettes away. Do not remove or install
battery cables when engine is cranking or running.
Only service or use battery in a well-vented area.
WARNING
Battery contains sulfuric acid. Contact with skin or
eyes may cause severe burns. Do not tilt generator
with battery installed. Tilting could cause battery
acid to spill. Wear protective clothing and face shield
when servicing. Keep out of children’s reach.
• If battery acid gets on your skin, wash with water.
• If battery acid gets in your eyes, flush with water
at least 15 minutes. Call a doctor at once. Battery
acid is poisonous.
• If swallowed, drink large amounts of water or
milk. Follow with milk of magnesia or vegetable
oil. Call a doctor at once.
12
Continued
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BATTERY
(Model MGH7000 Only)
Continued
CAUTION
If you remove battery, insulate the red, positive (+)
battery cable terminal. Insulate with electrical tape.
Exposed terminal may spark when generator runs.
IMPORTANT: Make sure battery connections are the correct polarity. Electric
start generators use negative ground, 12-volt DC starting system.
Model MGH7000 has an electric starter. A battery is not supplied with generator.
You must provide a 12-volt, 32-amp-hour battery. The positive and negative
battery cables are supplied with generator. You must install these cables before
mounting battery.
Always wear safety glasses when working with battery. Make sure battery termi-
nals are clean. Make sure cable connections are tight.
Always shut down engine before removing or attaching battery cables. Always
remove the negative (–) cable first. Always attach negative (–) cable last.
INSTALLING BATTERY CABLES TO ENGINE
1. Attach the red, positive (+) battery cable to the starter solenoid on engine (see
Figure 8).
2. Attach the black, negative (–) battery cable to the engine block. Use the bolt,
nut, and two washers provided with the battery cables. Use long mounting hole
on opposite side of engine from starter solenoid. Attach cable as shown in
Figure 9.
Starter
Solenoid
Red, Positive
(+) Battery
Cable
Figure8-ConnectingRed, Positive(+)BatteryCabletoEngineStarterSolenoid
Black, Negative (–)
Battery Cable
Figure 9 - Connecting Black, Negative (–) Battery Cable to Engine Block
13
Continued
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MOUNTING BATTERY TO GENERATOR
BATTERY
(Model MGH7000 Only)
Continued
1. Secure battery to generator by battery hold-down system. This system consists
of the battery mounting bracket, hook bolts, and nut (see Figure 10).
2. Locate the red, positive (+) battery cable from starter solenoid. Connect it to
the positive (+) battery terminal (see Figure 11).
3. Locate the black, negative (–) battery cable attached to engine block. Connect
it to the negative (–) battery terminal (see Figure 11).
4. Check battery before starting engine. Make sure fluid levels are full. Make sure
battery is charged.
See engine owner’s manual for more information.
Battery
Mounting
Bracket
Nut
Battery
Hook
Bolt
Figure 10 - Battery Hold-Down System
TO ENGINE
BLOCK
TO STARTER
SOLENOID
Figure 11 - Connecting Positive and Negative Cables to Battery
14
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GENERATOR
GROUNDING
WARNING
You must properly earth-ground generator before
starting. This will help guard against deadly electric
shock. Only use grounded plugs with generator.
Only use grounded extension cords. Only use three-
wire or double-insulated power tools.
Grounding generator helps prevent electric shock from a ground fault condition.
Locate ground lug on end of generator housing (see Figure 12). Attach a #10
stranded-copper ground wire to ground lug. Drive grounding point into ground.
Grounding point can be a stake, grounding rod, or pipe. Grounding point should be
copper or brass. Attach ground wire to grounding point. You must supply the
ground wire and grounding point. They do not come with generator. Follow the
National Electrical Code and all state and local codes. Consult your power com-
pany or a licensed electrician.
WARNING
For a grounding point, do not use metal pipe being
used to carry combustible materials or gases.
FUEL
F
Ground Lug
Copper or Brass
Grounding Point
Ground Wire
Alternator
Figure 12 - Grounding Generator (Model MGH4000A Shown)
15
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Only use grounded extension cords. Be sure to use extension cord with proper wire
gauge size. See chart below.
EXTENSION
CORDS
Recommended Minimum Wire
Gauges (AWG) for Extension Cords
Ampere
Load
AWG for Length of Cord in Feet
50'
100'
150'
2
3
4
5
6
18
18
16
16
16
16
16
14
14
12
10
18
18
16
16
16
14
14
14
12
12
10
18
18
16
16
14
12
12
12
10
10
8
8
10
12
14
16
20
STANDBY
INSTALLATION
TO HOME OR
BUILDING
WARNING
Have standby installation performed by a skilled,
licensed electrician. Do not let anyone else wire into
a utility circuit. Personal injury, equipment damage,
or damage to home could occur.
IMPORTANT: This generator will not power your entire home. Most home utility
electric service is more than 60 amps. This will exceed generator output. Only
power needed items during a power outage. Make sure total wattage of electrical
load does not exceed rated wattage of generator.
You can use this generator as a standby power source. During a power outage, the
generator will power selected items in a building. Have generator and additional
wiring installed by a skilled, licensed electrician. This is not a do-it-yourself job.
Follow all local codes.
WARNING
The electrician must install a double-throw transfer
switch. This isolates existing electrical circuits from
the utility power line. If not isolated, generator output
will back-feed into utility power line. This may
electrocute a power company line repair person.
You must decide what electrical load your generator can power. Do this before
using generator. Use the following four-step method. It will help you select a load
that is not too large. Make sure total wattage of all electrical loads does not exceed
rated wattage of generator. For rated wattage of your generator, see Specifications,
page 7. Electric motors present a special problem when figuring load. Read Step 3
carefully.
DETERMINING
ELECTRICAL
LOAD FOR
GENERATOR
1. Make two lists of items you want powered by generator. List all motors and
motor powered appliances in one. List all lights, small appliances, etc. in the
16
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other. For standby service to home or building, only include items you must
power.
DETERMINING
ELECTRICAL
LOAD FOR
2. Enter running watts of each item except motors. The light bulb or appliance
nameplate lists its wattage. Remember, 1KW = 1000 watts. Note: The name-
plate may not list wattage. It may only list volts and amps. The formula for
finding wattage is: Volts x Amps = Watts. For example: An appliance name-
plate states 3 amps at 120 volts. 3 amps x 120 volts = 360 watts.
GENERATOR
Continued
3. Electric motors present a special problem. They require up to three-times their
rated wattage to start. Chart 2, below, shows starting watts for different size
motors. For example: an electric motor nameplate states 5 amps at 120 volts. 5
amps x 120 volts = 600 watts running. Multiply this figure by 3. This will
show the starting watts needed. 600 watts x 3 = 1800 watts to start. When
figuring the generator load for motors, you must use the starting watts figure.
Do not use the running watts figure. Note: Some motors require nearly the
same wattage to run as to start. These items include saws, drills, hair dryers,
and food mixers. See Chart 1 for typical appliance wattage examples.
4. Add watts and starting watts of all items. This total must not be larger than the
rated wattage of your generator. It is a good idea to have up to 25% extra
capacity for future needs or extra equipment.
Chart 1
Typical Electric Appliance Wattages
Running Starting
Running Starting
Equipment
Watts
Watts
Equipment
Watts
Watts
Light bulb (100W)
Radio
Fan
Television
Furnace fan (1/3 hp)
with blower
Vacuum cleaner
Sump pump (1/3 hp)
Refrigerator/freezer
6" Circular saw
Floodlight
100
150
200
400
100
150
600
400
1/2" Drill
Toaster
1000
1200
1200
1200
1200
1250
1200
1200
1200
1500
Coffee maker
Skillet
14" Chain saw
Water well pump
(1/2 hp)
Hot plate/range
(per burner)
10" Table saw
Water heater
(storage-type)
600
600
700
800
800
1000
1800
750
2100
2400
1000
1000
1000
3000
1500
2000
1500
6000
5000
5000
Chart 2
Approximate Starting Watts*
Universal Repulsion
Motors Induction Capacitor Phase
Motor Approximate
Split
HP
Running
Watts
Rating
(small appliance)
Motors
Motors
Motors
1/8
1/4
1/3
1/2
3/4
1
1 1/2
2
3
275
400
450
600
850
1000
1600
2000
3000
400
500
600
750
1000
1250
1750
2350
x
600
850
975
1300
1900
2300
3200
3900
5200
850
1200
1700
1950
2600
x
x
x
x
x
1050
1350
1800
2600
3000
4200
5100
6800
* – Always use starting watts, not running watts, when figuring correct electrical load.
x – Motors of higher horsepower are not generally used.
17
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GENERAL INFORMATION
OPERATION
This generator is not large enough to power your entire home. Do not connect
generator to any existing electrical circuits. Plug items directly into generator
receptacles. Do not exceed amperage rating of receptacles. Only use grounded
cords.
DANGER
Use only in well-vented areas. Make sure area has
plenty of free-moving, fresh, outside air. Never run
generator in an enclosed or confined area. Never run
generator inside occupied building. Engine exhaust
contains poisonous carbon monoxide gas.
Overexposure will cause loss of consciousness
and will lead to death.
WARNING
Never connect generator to any existing electrical
circuits. The generator output will back-feed into the
utility power line. This may electrocute a power
company line repair person. Also, if generator is
powering electrical circuits, the chance of an
electrical fire exists.
Note: We supply the engine owner’s manual with generator. Refer to that manual
for questions concerning engine operation.
USING RECEPTACLE
Note: Do not exceed amperage rating of receptacles. Exceeding rating will trip
receptacle circuit breaker.
Use receptacles properly. Improper use could damage generator. Use only
grounded extension cords. Power only grounded or double-insulated items. Do not
overload receptacles. All generators (except model MGH3000) have the following
receptacles (see Figure 13):
• 120V, 15-amp GFCI duplex receptacle
• 120V, 30-amp twist-lock receptacle
• 120/240V, 20 or 30-amp twist-lock receptacle
Model MGH3000 has only the 120V, 15-amp GFCI duplex receptacle.
120V, 15-Amp GFCI Duplex
120 VOLTS
RESET
120/240V, 20 or
30-Amp Twist-Lock
RESET
TEST
FULL POWER
SELECTOR
120/240 VOLTS
120
ONLY
RESET
120
240V
RESET
120V, 30-Amp
Twist-Lock
Figure 13 - Receptacle Locations
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18
POWER CORD AND PLUG REQUIREMENTS
120V, 30-amp twist-lock receptacle
• NEMA L5-30P plug
OPERATION
Continued
• Three-wire, 30-amp cord
120/240V, 20 or 30-amp twist-lock receptacle
• NEMA L14-20P (20-amp) or L14-30P (30-amp) plug
• Four-wire, 20-amp or 30-amp cord
120 Volt
30 Amp
L5-30P
Plug
W
X
X
(Hot)
G
Ground
(Green)
W
(Neutral)
Neutral
120V 120V
w
120/240 Volt
20 and 30
Amp
L14-20P
Plug
Y
X
G
Ground
X
(Hot)
Ground
(Green)
Neutral
120V 120V
w
Y
X
L14-30P
Plug
G
W
Y
(Hot)
(Neutral)
Ground
Figure 14 - Cord and Plug Configurations
19
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PRESTART
OPERATION
Operate generator on a firm, dry, and clean surface. The surface must be level.
Protect generator from heavy dust, sand, dirt, rain, or snow. Do not locate genera-
tor near standing water and snow. Make sure area is well-vented.
Continued
WARNING
Only responsible adults should use generator. Never
let anyone operate generator without proper instruc-
tions.
Note:Ifoillevelistoolow,oilalertsystemwillkeepenginefromstarting(seeOilAlert
System, page 9). Make sure oil level is full before starting. See Engine Oil, page 11.
Before starting the engine, disconnect all electric loads from generator.
STARTING
IMPORTANT: The engine speed is preset. The throttle is locked in preset posi-
tion. Do not adjust throttle. Preset position lets engine run at 3600 RPM under
load. The engine must maintain 3600 RPM for generator to create correct voltage.
Running engine at lower speeds will damage generator and powered items.
IMPORTANT: Never start generator with electrical loads connected. Start engine
before adding electrical loads.
1. Make sure gasoline tank is full. See Fuel, page 12 for fuel information.
2. Move fuel valve lever to the ON position (see Figure 15).
3. Move choke lever fully to the left (see Figure 15). This closes the choke.
Note: You may not need to close choke if engine is warm or air temperature is
high.
Choke Lever (Closed Position)
Fuel Valve Lever (ON Position)
Figure 15 - Fuel Valve Lever On, Choke Lever Closed
20
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4. Start the engine.
OPERATION
A. Recoil Starter
Continued
Turn engine switch to the ON position (see Figures 16 and 17). Remove slack
from starter rope by lightly pulling starter grip. Next, pull starter rope briskly.
IMPORTANT: Do not let starter grip snap back against engine. Return it gently.
This will prevent damage to starter.
Note: If engine does not start, check the oil in the crankcase. Add oil as
necessary. Be sure engine is on a level surface. See oil alert system, page 9.
ENGINE SW
ON
OFF
Figure 16 - Engine Switch In ON Position (All Models Except MGH7000)
B. Electric Starter (Model MGH7000 Only)
Turn the engine switch to the START position (see Figure 17). Hold it there
until engine starts. When engine starts, let switch return to the ON position.
IMPORTANT: Do not use electric starter more than five seconds. Starter
motor damage may occur. If engine fails to start, release the switch and wait
ten seconds. After ten seconds, try starting again.
Note: If engine does not start, check the oil in the crankcase. Add oil as
necessary. Be sure engine is on a level surface. See oil alert system, page 9.
5. As engine warms up, slowly move choke lever fully to the right (see Figure 18,
page 22). This opens the choke.
HONDA
ON
OFF
START
Engine
Switch
ENGINE SW
CIRCUIT
BREAKER
ON/push OFF
Figure 17 - Engine Switch (Model MGH7000 Only)
Continued
21
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Choke Lever
(Open Position)
OPERATION
Continued
Figure 18 - Choke Lever Opened
HIGH ALTITUDE OPERATION
This generator will not perform well at high altitudes without proper adjustment.
See engine owner’s manual for details.
ADDING ELECTRICAL LOADS
IMPORTANT: Do not overload generator. Make sure total wattage of all electri-
cal loads does not exceed rated wattage of generator. Overloading may shorten
generator life. It could also cause internal damage to generator. Overloading will
trip circuit breaker.
IMPORTANT: (All models except MGH3000 and MGH7000) Keep full power
selector switch in the 120 VOLT ONLY position if only powering 120V items.
Only move switch to 120/240 VOLT position if powering 240V items.
1. Check items to be powered. Their nameplate lists their wattage ratings.
Note: The wattage ratings for some electrical motors are misleading. They
may require up to three-times their rated wattage to start. You must figure total
electrical load wattage. Make sure total wattage of all electrical loads does not
exceed rated wattage of generator. See Determining Electrical Load For
Generator, page 16.
2. Start engine. Let engine reach full speed.
3. Connect electrical loads one at a time. If the load consists of electric motors,
start them first. Always start the largest first. Start each motor individually.
DISCONNECTING ELECTRIC LOADS
Remove electrical loads one at a time. Remove voltage sensitive items first.
Voltage sensitive items include TVs, VCRs, and other home electronic items.
22
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STOPPING ENGINE
OPERATION
IMPORTANT: The engine speed is preset. The throttle is locked in preset posi-
tion. Do not adjust throttle.
Continued
Follow the steps below to stop engine.
1. Remove all electrical loads from generator (see Disconnecting Electrical
Loads, page 22). Remove electrical loads one at a time.
2. Let engine run for two or three minutes after removing electrical loads. This
lets engine cool slightly.
3. Turn engine switch to the OFF position (see Figure 19).
4. Turn fuel valve lever off. Do this by moving valve lever fully to the left (see
Figure 20).
HONDA
ENGINE SW
ON
OFF
ON
OFF
START
Engine Switch For All
ENGINE SW
Models Except MGH7000
CIRCUIT
BREAKER
ON/push OFF
Engine Switch For
Model MGH7000
Figure 19 - Engine Switch In OFF Position
Fuel Valve Lever
(Off Position)
Figure 20 - Fuel Valve Lever Off
23
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MAINTENANCE
AND REPAIRS
WARNING
Only a qualified electrical service person should
service and repair the alternator on this generator.
Use only factory approved replacement parts.
CAUTION
The engine speed is preset. The throttle is locked in
preset position. Do not adjust throttle. Preset
position lets engine run at 3600 RPM under load. The
engine must maintain 3600 RPM for generator to
create correct voltage. Running engine at lower
speeds will damage generator and powered items.
CAUTION
Shut off generator before performing maintenance.
IMPORTANT: Keep generator level when servicing. Never turn generator upside
down or stand it on end to service.
Note: We supply the engine owner’s manual with generator. Refer to that manual
for questions concerning engine maintenance and repairs.
Non-engine parts require little maintenance. Keep generator clean. Use a damp
cloth to clean outside surfaces. Never use water to clean generator. Water can
cause damage to internal parts. Use vacuum to clean air inlet and outlet louvers of
alternator.
STORAGE
WARNING
Remove all fuel from fuel tank before storing
generator. Store fuel in approved container. Store
fuel in a well-vented area free of open flames or
sparks.
WARNING
The muffler becomes very hot during operation. The
muffler remains hot for a while after shutdown. Let
engine cool before storing.
IMPORTANT: Keep generator level while in storage. Never store generator upside
down or standing on end.
Note: We supply the engine owner’s manual with generator. Refer to that manual
for questions concerning engine storage.
Use a fuel additive, such as STA-BIL® or an equivalent, when storing generator
with fuel in fuel tank. This will minimize fuel gum deposits from forming in
engine.
Cover and store generator in a clean, dry place. Do not expose generator to
extreme high or low temperatures during storage.
24
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Note: See engine owner’s manual for engine troubleshooting.
TROUBLE-
SHOOTING
WARNING
Only a qualified electrical service person should
service and repair generator. Use only factory
approved replacement parts.
OBSERVED
PROBLEM
POSSIBLE
CAUSE
REMEDY
No voltage when
starting generator
with no electrical
load
1. Defective capacitor
1. Replace capacitor
2. Winding short circuit
or loose connections
2. Checkresistanceofcoils(see
Electrical Component Speci-
fications, below)
3. Defective rotor diode
3. Replace both diodes on rotor
4. Loss of residual
magnetism
4. Apply 12-volt battery to
capacitor terminals for 2-3
seconds
Voltage is less than
normal voltage with
no electrical load
1. Engine speed too low 1. Set engine speed to 3720
RPM (62 Hz) with no load
2. Defective rotor diode
2. Replace both diodes on rotor
3. Partial short circuit in 3. Checkresistanceofcoils(see
winding
Electrical Component Speci-
fications, below)
4. Defective capacitor
4. Replace capacitor
Voltmeter reading
more than 10% high
with no electrical
load
1. Engine speed too high 1. Set engine speed to 3720
RPM (62 Hz) with no load
Voltmeter reading
correct with no
1. Defective rotor diode
1. Replace both diodes on rotor
2. Electrical load too high 2. Do not overload generator
electrical load, but
more than 10% low
when electrical load
is added
3. Engine not running
properly
3. Contact an authorized
engine service center
Resistance in Ohms
ELECTRICAL
COMPONENT
SPECIFICA-
TIONS
Stator
Main
Stator
Auxiliary
Rotor
Primary Secondary
Rotor
Capacitor,
MFD
450 Volt
Diodes (2)
800 Volt
Model
Winding * Winding
∆
Winding † Winding †
MGH3000
1.6
5.9
6.9
1.33
2.07
2.29
2.57
2.9
16
40
50
60
70
6 Amp
70 Amp
70 Amp
70 Amp
70 Amp
MGH4000A 0.71
MGH5000A 0.54
2.17
1.38
1.01
0.78
0.54
0.61
0.68
0.77
MGH6000
MGH7000
0.37
0.28
*
∆
†
Connect T2 (green) and T3 (black). Measure resistance between T1 (red) and T4 (yellow).
Resistance between brown and white leads.
Remove diodes to check resistance.
25
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WIRING
DIAGRAMS
Stator
Black
L1
HOT
Receptacle
120V/15A
GFCI
Black
20A
WHITE
Circuit
Breaker
T1
L1
T3
T2
T4
L2
L2
L2
110/120V
Yellow
L1
Rotor
Stator
White
Auxiliary
Phase
C
D
Brown
Black
Main
Windings
T4
T3
Red
T2
T1
Yellow
Green
Figure 21 - Wiring Diagram, Model MGH3000
Red
Green/Yellow
Green
White
Black
Black
120V, 15A
Receptacle
120V, 30A
Receptacle
120/240V 20A
Receptacle
Run
Light
Red
Circuit
Breaker
T1
GFCI
White
20A, 25A
or 30A
Circuit
Breaker
20A
T2
Circuit
Breaker
20A, 25A
or 30A
Full Pwr
Selector
Switch
White
T3
Red
Black
Black
LINE
T4
Yellow
Black
White
Green
Black
Red
Red
Black
Green
Black
Red
Main
Windings
Auxiliary
Phase
Capacitor
White
Stator
White
T1 T4 T3 T2
Stator
White
T4
Rotor
Diode Diode
T2
T1
T3
T1
L1
T2
T3
T4
L2
Green
220/240V
Red
Black
Yellow
110/120V
110/120V
Brown
Figure 22 - Wiring Diagram, Models MGH4000A, MGH5000A, and MGH6000
26
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WIRING
DIAGRAMS
Continued
Green/Yellow
Green
Black
Black
Run
Light
120/240V 30A
Receptacle
120V, 15A
Receptacle
120V, 15A
Receptacle
White
Circuit
Breaker
30A
GFCI
T1
Red
T3
White
Circuit
Breaker
20A
T2
Circuit
Breaker
30A
LINE
T4
White
Yellow
Green
Black
Black
Red
Black
Black
Red
Auxiliary
Phase
Main
Windings
Capacitor
White
Stator
T2 T3
220/240V
110/120V 110/120V
White
Stator
White
T4
Rotor
T2
T1
T3
T1
L1
T4
L2
T1 T4 T3 T2
Green
Red
Diode
Diode
Black
Yellow
Brown
Figure 23 - Wiring Diagram, Model MGH7000
These Parts Centrals are privately owned businesses. They have agreed to support
our customer’s needs by providing original replacement parts and accessories.
PARTS
CENTRALS
Parts Company of America
1657 Shermer Road
Northbrook, IL 60062
1-800-323-0620
MTA Distributors
2940 Foster Creighton Drive
Nashville, TN 37204
1-800-264-0225
(708) 498-5900
(615) 726-2225
Parts Department
Greenwood Electric Motor
8719 Greenwood N.
Seattle, WA 98103
(206) 782-8181
Portable Heater Parts
342 N. County Road 400 East
Valparaiso, IN 46383
1-800-362-6951
Bob Palmer
(219) 462-7441
Parts Department
Master Service Center
1184 Wilson NW
Grand Rapids, MI 49504
1-800-446-1446
(616) 791-4760
Mike Fowler
27
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You may have further questions about installation, operation, or troubleshooting.
If so, contact DESA International’s Technical Service Department at 1-800-323-
5190.
TECHNICAL
SERVICE
Honda parts and services should be handled by your nearest authorized engine
service firm. Check the yellow pages of your telephone directory under the listing:
SERVICING
THE ENGINE
Engines Gasoline,
Honda
Note: Use only original replacement parts. This will protect your warranty cover-
age for parts replaced under warranty.
REPLACEMENT
PARTS
Parts Under Warranty
Contact authorized dealers of this product. If they cannot supply original replace-
ment part(s), either contact your nearest Parts Central (see page 27) or call DESA
International’s Technical Service Department at 1-800-323-5190.
When calling DESA International, have ready
• your name
• your address
• model number of your generator
• how generator is malfunctioning
• purchase date
Usually, we will ask you to return the defective part to the factory.
Parts Not Under Warranty
Contact authorized dealers of this product. If they cannot supply original replace-
ment part(s), either contact your nearest Parts Central (see page 27) or call DESA
International’s Parts Department at 1-800-972-7879 for information.
When calling DESA International, have ready
• model number of your generator
• the replacement part number
Heavy-Duty Wheel Kit – PA2000
For models MGH4000A, MGH5000A, MGH6000, and MGH7000
ACCESSORIES
Wheelbarrow-style wheel kit. Makes generator easy for one person to move.
This kit includes:
• Large 12-inch wheels for easy rolling
• Plated tubing and hardware for long life
• Long handles with thick grips for greater comfort and control
Complete installation instructions included.
Automatic Idle Kit – PA2010
For models MGH4000A, MGH5000A, MGH6000, and MGH7000
Automatically reduces engine speed when no power is being used. Reduces fuel
consumption and engine noise. Increases engine life.
Complete installation and operation instructions included.
28
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This list contains replaceable parts used in your generator. When ordering parts,
follow the instructions listed under REPLACEMENT PARTS on page 28 of this
manual.
ILLUSTRATED
PARTS LIST
1
7
For Model MGH3000
Alternator Assembly
2
4
23
5
6
3
15
22
21
16
20
14
18
17
16
14
11
13
8
19
9
7
10
12
7
KEY PART
KEY PART
NO.
NUMBER
DESCRIPTION
QTY.
NO.
NUMBER
DESCRIPTION
QTY.
15
16
17
18
19
20
21
22
23
27001005S
WLE-4
Engine Flange
1
4
1
1
2
1
1
4
4
099722-02
100074-01
100065-01
Alternator Assembly
Top Cover
1
1
1
2
Lock Washer, 1/4"
Stator
120V, 15A Duplex (GFCI)
Receptacle †
*
1
1
27001002
27001009S
*
Bearing
3
22616009
27002002S
26333000
099863-01
099701-01
099848-01
17587000
099891-01
M11084-26
099861-01
099842-01
26310000
Circuit Breaker, 20 Amp †
Capacitor
Diode
4
1
Rotor
5
Screw, M4 x 20
Terminal Block
Screw, M5 x 13
End Plate
1
27001006
26327006
WLE-5
Fan
6
1
Bolt, 5/16-24 x 5/8"
7
12
1
Lock Washer, 5/16"
8
PARTS AVAILABLE - NOT SHOWN
9
Ground Lug
1
099866-03
099866-04
099867-02
Safety Information Decal
Safety Information Decal
Operation Decal
1
1
1
10
11
12
13
14
Flanged Nut, 8mm
Screw, #10 x 3/8"
Bottom Cover
1
1
1
Draw Bolt
1
Screw, M6 x 16
4
† Includes fastening hardware.
* Part not available by itself. Must purchase Alternator Assembly.
29
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This list contains replaceable parts used in your generator. When ordering parts,
follow the instructions listed under REPLACEMENT PARTS on page 28 of this
ILLUSTRATED
PARTS LIST
manual.
23
For Models
MGH4000A,
MGH5000A,
MGH6000, and
MGH7000
25
24
22
9
15
21
Alternator Assembly
20
19
9
10
8
14
7
18
6
5
13
17
16
12
4
1
26
11
2
3
KEY
NO.
PART NUMBER FOR MODEL
MGH4000A
MGH5000A
MGH6000
MGH7000
DESCRIPTION
QTY.
099723-01
099844-01
099701-01
099760-01
099863-01
099863-02
17587000
M11084-26
099847-01
WLE-5
099723-02
099844-01
099701-01
099760-01
099863-01
099863-02
17587000
M11084-26
099847-02
WLE-5
099723-03
099844-01
099701-01
099760-01
——
099863-02
17587000
M11084-26
099847-03
WLE-5
099723-04
099844-01
099701-01
099760-01
——
099863-02
17587000
M11084-26
099847-04
WLE-5
Alternator Assembly
End Cover
Screw, M5 x 13
Bushing
Terminal Block (4-block)
Terminal Block (2-block)
Ground Lug
Screw, #10-16 x 3/8"
Stator Bolt
1
1
6
1
1
1
1
1
4
4
1
1
4
1
2
3
4
5
6
7
8
9
Lock Washer, 5/16"
Bearing Housing
Capacitor
10
11
12
099843-01
27004002S
——
099843-01
27005003S
——
099843-01
099845-01
100054-01
099843-01
27007004S
100054-01
Terminal Post
13
14
15
16
17
18
19
20
*
*
*
*
Stator
1
1
4
1
1
1
1
2
27003002
27003015S
27001010S
27003013S
099842-01
27003003
27003012S
27003002
27003015S
27001010S
27003013S
099842-02
27003003
27003012S
27003002
27003015S
27001010S
27003013S
099842-03
27003003
27003012S
27003002
27003015S
27001010S
27003013S
099842-04
27003003
27003012S
Fan Bracket
Screw, M8 x 20
Rotor Nut
Washer
Draw Bolt
Bearing
Diode
21
22
23
24
25
26
*
*
*
*
Rotor
Fan
Engine Flange
Bolt, 3/8-16 x 5/8"
Lock Washer, 3/8"
Foam Pad
1
1
1
4
4
1
27003008
27003007S
26322004
WLE-6
27003008
27003007S
26322004
WLE-6
27003008
27003007S
26322004
WLE-6
27003008
27003007S
26322004
WLE-6
099892-01
099892-01
099892-01
099892-01
* Part not available by itself. Must purchase Alternator Assembly.
30
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This list contains replaceable parts used in your generator. When ordering parts,
follow the instructions listed under REPLACEMENT PARTS on page 28 of this
manual.
ILLUSTRATED
PARTS LIST
For Model MGH3000
Roll Cage
1
3
4
3
4
2
3
4
7
3
3
4
5
6
6
8
5
5
9
9
9
7
4
9
3
KEY
NO.
PART
NUMBER
DESCRIPTION
QTY.
1
2
3
4
5
6
7
8
9
099781-01
099780-02
NEC-5C
Roll Cage
1
1
6
5
3
2
1
1
4
Engine Spreader
Lock Nut, 5/16-18
Flat Washer, 5/16"
Shock Mount
WP-5C
26020000
04110002
14138000
21834000
100406-01
Screw, 5/16-18 x 1 1/2
Ground Strap
Washer, 5/16" x 1 1/2"
Bolt, 5/16-18 x 3/4"
31
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ILLUSTRATED
PARTS LIST
For Models
MGH4000A,
MGH5000A,
MGH6000, and
MGH7000
3
FUEL
F
1
2
4
24
Fuel Tank and
Roll Cage
5
6
7
26
25
7
6
8
14
9
23
27
24
11
13
10
22
14
11
16
21
20
23
23
14
16
11
11
11
13
16
16
12
18
16
17
16
15
19
16
17
13
15
15
32
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This list contains replaceable parts used in your generator. When ordering parts,
follow the instructions listed under REPLACEMENT PARTS on page 28 of this
manual.
ILLUSTRATED
PARTS LIST
KEY
NO.
PART
NUMBER
DESCRIPTION
QTY.
1
2
3
4
5
6
7
8
9
25954000
099832-01
25978000
HC4-8C
099701-01
19508001
25985005
099743-01
099752-01
099752-02
NTC-4C
Gas Cap/Fuel Gage
Gas Tank (with 90° fitting)
Breather Assembly
Screw, 1/4-20 x 1"
Screw, M5 x 10
Gas Line Clamp
Fuel Line
Fuel Filter
Roll Cage ∆
Roll Cage †
Lock Nut, 1/4-20
Lock Nut, 5/16-18
Ground Strap
1
1
1
4
1
2
1
1
1
1
4
5
1
3
3
3
7
2
1
2
1
2
4
3
5
1
1
1
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
NEC-5C
14138000
26020000
WLE-5
100406-01
WP-5C
HC5-11C
099756-01
099750-01
099749-01
NEC-5C
100410-01
M10908-74
WP-4C
Shock Mounts
Lock Washer, 5/16"
Bolt, 5/16-18 x 3/4"
Flat Washer, 5/16"
Bolt, 5/16-18 x 1 3/4"
Engine Spreader
Hook Bolt, 5/16-18 **
Battery Mounting Bracket **
Lock Nut, 5/16-18 **
Sems Screw, #8-18 x 1/2"
Screw, 1/4-20 x 1/2"
Washer, 1/4"
01076002
WLI-3
099965-01
Washer, #10
Lock Washer, #10
Linkage Cover
PARTS AVAILABLE - NOT SHOWN
099866-01
Safety Information Decal *
Safety Information Decal **
Operation Decal *
1
1
1
1
1
1
099866-02
100003-01
100003-02
099873-01
099873-02
HC4-6C
Operation Decal **
Battery Cable (Positive)**
Battery Cable (Negative)**
Screw, 1/4-20 x 3/4" (For attach-
ing battery cables to battery)
Fuel Line Grommet
2
3
03157000
* For models MGH4000A, MGH5000A, and MGH6000 only
** For model MGH7000 only
∆ For models MGH4000A and MGH5000A only
† For models MGH6000 and MGH7000 only
33
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This list contains replaceable parts used in your generator. When ordering parts,
follow the instructions listed under REPLACEMENT PARTS on page 28 of this
manual.
ILLUSTRATED
PARTS LIST
For Models
MGH4000A,
MGH5000A,
MGH6000, and
MGH7000
11
2
Control Panel
RESET
1
3
TEST
7
120 VOLTS
RESET
4
5
6
12
12
FULL POWER
SELECTOR
120/240 VOLTS
6
120
ONLY
RESET
RESET
120
240V
8
13
10
9
KEY
PART NUMBER FOR MODEL
NO. MGH4000A MGH5000A MGH6000
MGH7000
DESCRIPTION
QTY.
1
2
3
4
5
6
100148-01
22616009
099833-01
100445-01
099956-01
22616009
—
100148-02
22616009
099833-01
100445-01
099956-01
—
22616011
—
099834-01
—
26299000
099760-01
100410-01
100149-01
22261000
099997-01
100148-03
22616009
099833-01
100445-01
099956-01
—
100148-04
22616009
099833-01
100445-01
—
Control Panel
Circuit Breaker, 20 Amp *
120V, 30A Twist-Lock Receptacle *
1
1
1
1
1
2
2
2
1
1
1
1
4
1
8
1
120V, 15A Duplex (GFCI) Receptacle *
Full Power Selector Switch *
Circuit Breaker, 20 Amp *
Circuit Breaker, 25 Amp *
Circuit Breaker, 30 Amp *
120/240V, 20A Twist-Lock Receptacle *
120/240V, 30A Twist-Lock Receptacle *
Lamp
Bushing
Sems Screw, #8-18 x 1/2"
Control Box
U-Nut
Switch Plug
—
—
—
—
22616010
099834-01
—
26299000
099760-01
100410-01
100149-01
22261000
099997-01
22616010
—
7
099834-01
—
099835-01
26299000
099760-01
100410-01
100149-01
22261000
099997-01
8
9
10
11
12
13
26299000
099760-01
100410-01
100149-01
22261000
099997-01
PARTS AVAILABLE - NOT SHOWN
100177-01 100177-01 Panel Schematic Decal
100177-01
100177-01
1
* Includes fastening hardware
34
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NOTES
35
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WARRANTY INFORMATION
KEEP THIS WARRANTY
Model
Serial No.
Date Purchased
Always specify model and serial numbers when communicating with the factory.
We reserve the right to amend these specifications at any time without notice. The only warranty applicable is our standard
written warranty. We make no other warranty, expressed or implied.
Note: The two-year limited warranty below covers all non-engine parts of this generator including the alternator. Honda
warrants the engine. See engine owner’s manual for engine warranty information.
TWO-YEAR LIMITED WARRANTY
GASOLINE PORTABLE GENERATORS
DESA International warrants each alternator, generator, or electric product of its manufacture, to be free from defects
in material and workmanship for two years from the date of first purchase from an authorized dealer, provided that the
product has been properly installed, maintained, and operated in accordance with all applicable instructions. The bill
of sale or proof of purchase must be presented at the time a claim is made under this warranty.
This warranty is extended only to the original retail purchaser. This warranty covers only the parts and labor required
to restore this unit to its proper operating condition. Warranty parts must be obtained through factory authorized
dealers and service centers for this product. These dealers and service centers will provide original factory replace-
ment parts. Failure to use original factory replacement parts voids this warranty.
This warranty does not apply to parts that are not in original condition because of normal wear and tear, or parts that
fail or become damaged as a result of misuse, abuse, negligence, accident, lack of proper maintenance, alteration,
modification, tampering, contaminated fuels, repair using improper parts, or repair by anyone other than an authorized
dealer or service center. Routine maintenance is the responsibility of the owner. Travel, handling, transportation, and
incidental costs associated with warranty repairs are not reimbursable under this warranty and are the responsibility of
the owner.
DESA International makes no warranty with respect to the engine and engine components not of its manufacture.
They are subject to warranties of their manufacturers.
To the full extent allowed by the law of the jurisdiction that governs the sale of the product, this express warranty
excludes any and all other expressed warranties and limits the duration of any and all implied warranties, including
warranties of merchantability and fitness for a particular purpose to two years from the date of first purchase, and
DESA International’s liability is hereby limited to the purchase price of the product and DESA International shall not
be liable for any other damages whatsoever including indirect, incidental, or consequential damages.
Some states do not allow limitation of how long an implied warranty lasts or an exclusion or limitation of incidental
or consequential damages, so the above limitation of damages may not apply to you.
This warranty provides the original purchaser with specific rights. For information regarding those rights, please
consult the applicable state laws.
2701 Industrial Drive
P.O. Box 90004
Bowling Green, KY 42102-9004
100069-01
REV. H
2/95
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