PARTS AND OPERATION MANUAL
PLASTER/MORTAR MIXER
MS20H (Steel-Gasoline)
MS20E (Steel-Electric)
Effective S/N SEC55001
Revision #3 (08/10/06)
STOWCONSTRUCTIONEQUIPMENT
A DIVISION OF MULTIQUIP INC.
POST OFFICE BOX 6254
DIVISION OF MULTIQUIP INC.
PARTS DEPARTMENT:
800-427-1244
FAX: 800-672-7877
A
CARSON, CALIFORNIA 90749
SERVICE DEPARTMENT/TECHNICAL ASSISTANCE:
800-478-1244
FAX:310-631-5032
310-537-3700 • 888-252-STOW [888-252-7869]
FAX:310-537-1986 • FAX:800-556-1986
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HERE'S HOW TO GET HELP
PLEASE HAVE THE MODEL AND SERIAL NUMBER
ON-HAND WHEN CALLING
PARTS DEPARTMENT
800-427-1244 or 310-537-3700
FAX: 800-672-7877 or 310-637-3284
SERVICE DEPARTMENT/TECHNICAL ASSISTANCE
800-478-1244 or 310-537-3700
FAX: 310- 537-4259
WARRANTY DEPARTMENT
888-661-4279, or 310-661-4279
FAX: 310- 537-1173
MAIN
800-421-1244 or 310-537-3700
FAX: 310-537-3927
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 3
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TABLE OF CONTENTS
Here's How To Get Help ........................................... 3
Table Of Contents .................................................... 4
Parts Ordering Procedures ...................................... 5
Safety Messages Alert Symbols ...........................6-7
Rules For Safe Operation ...................................8-10
Operation and Safey Decals .................................. 11
Specifications ......................................................... 12
General Information ............................................... 13
HONDA GX240K1HA2 ENGINE
Air Cleaner Assembly........................................ 52-53
Camshaft Assembly .......................................... 54-55
Carburetor Assembly ........................................ 56-57
Control Assembly .............................................. 58-59
Crankcase Cover Assembly.............................. 60-61
Crankshaft Assembly ........................................ 62-63
Cylinder Barrel Assembly.................................. 64-65
Cylinder Head Assembly ................................... 66-67
Fan Cover Assembly ......................................... 68-69
Flywheel Assembly ........................................... 70-71
Muffler Assembly .............................................. 72-73
Fuel Tank Assembly .......................................... 74-75
Ignition Coil ....................................................... 76-77
Piston Assembly................................................ 78-79
Recoil Starter .................................................... 80-81
Gear Reduction Assembly ................................ 82-83
Label Assembly................................................. 84-85
MQ-STOW — Plaster/Mortar
Mixer
Basic Engine Components..................................... 14
Electric Motor ....................................................15-16
Controls.................................................................. 17
Towing Guidelines .................................................. 18
Safety Chain Connection ....................................... 19
Trailer Safety Guidelines ...................................20-21
Paddle Blade Adjustment ....................................... 22
Pre-Inspection ...................................................23-24
Initial Start-up....................................................25-27
Maintenance .......................................................... 28
Troubleshooting (Engine)..................................29-30
Troubleshooting (Mixer/Motor)............................... 31
Electric Motor Wiring Diagram ............................... 32
Explanation Of Codes In Remarks Column ........... 34
Suggested Spare Parts .......................................... 35
Nameplate and Decals......................................36-37
Honda Engine Assembly...................................38-39
Electric Motor Assembly....................................40-41
Steel Tub Assembly ...........................................42-43
Paddle Shaft Assembly .....................................44-45
Axle Assembly ...................................................46-47
Frame Assembly ...............................................48-49
Engine Cover Assembly ....................................50-51
Terms and Conditions Of Sale — Parts ................. 86
PAGE 4 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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PARTS ORDERING PROCEDURES
When ordering parts,
please supply the following information:
❒
Dealeraccountnumber
❒
❒
❒
❒
❒
❒
Dealernameandaddress
Shipping address (if different than billing address)
Returnfaxnumber
Applicable model number
Quantity,part number and description of each part
Specifypreferredmethodofshipment:
✓
✓
✓
✓
✓
✓
FedEx or UPS Ground
FedEx or UPS Second Day or Third Day
FedEx or UPS Next Day
Federal Express Priority One
DHL
Note:Unlessotherwiseindicatedbycustomer, all
orders are treated as “Standard Orders”, and will
ship within 24 hours.We will make every effort to
ship “Air Shipments” the same day that the order is
received, if prior to 2PM west coast time. “Stock
Orders” must be so noted on fax or web forms.
Truck
Place Your Parts Order Via Web or Fax
For Even More Savings!
Here’s how to get help...
Please have the model and serial number
on hand when calling.
(Domestic USA Dealers Only)
STOW MAIN OFFICE
18910 Wilmington Ave.
Carson, CA 90746
800-421-1244
FAX: 310-537-3927
Extra Discounts!
All parts orders which include complete part numbers and
are received by our automated web parts order system, or
by fax qualify for the following extra discounts:
Email: [email protected]
Ordered
via
Standard
orders
Stock orders
SALES DEPARTMENT
310-661-4242
877-289-7869 (877-BUY-STOW)
PARTS DEPARTMENT
800-427-1244
310-537-3700
SERVICE DEPARTMENT
800-478-1244
310-537-3700
TECHNICAL ASSISTANCE
800-478-1244
($750 list and above)
Fax: 310-604-9237
Fax
3%
5%
10%
10%
Web
FAX: 800-672-7877
FAX: 310-637-3284
Special freight allowances
when you order 10 or more
line items via Web or Fax!**
FedEx Ground Service at no charge for freight
No other allowances on freight shipped by any other
carrier.
FAX: 310-537-4259
FAX: 310-631-5032
WARRANTY DEPARTMENT
800-421-1244, EXT. 279
310-537-3700, EXT. 279
**Common nuts, bolts and washers (all items under $1.00
list price) do not count towards the 10+ line items.
FAX: 310-537-1173
NOTE:DISCOUNTSARESUBJECTTOCHANGE
Direct TOLL-FREE access
to our Parts Department:
STOWCONSTRUCTIONEQUIPMENT
A DIVISION OF MULTIQUIP INC.
Toll-free nationwide — 800-427-1244
POST OFFICE BOX 6254
888-252-STOW[888-252-7869]
FAX:310-537-1986
CARSON, CA 90749
310-537-3700
FAX:800-556-1986
INTERNET:www.stowmfg.com
Toll-free FAX — 800-6-PARTS-7 (800/672-7877)
E-MAIL: [email protected]
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 5
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MS-20 MIXER — SAFETY MESSAGE ALERT SYMBOLS
FORYOUR SAFETY ANDTHE SAFETY OF OTHERS!
HAZARD SYMBOLS
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.
Lethal Exhaust Gases
Engine exhaust gases contain poisonous
carbon monoxide. This gas is colorless and
odorless, and can cause death if inhaled.
NEVER operate this equipment in a confined
area or enclosed structure that does not
provide ample free flow air.
NOTE
This Owner's Manual has been developed to provide
complete instructions for the safe and efficient operations
of the MQ STOW mortar and plaster mixer. Refer to the
engine manufacturers instructions for data relative to its
safe operation.
Before using this mixer, ensure that the operating
individual has read and understands all instructions
in this manual.
Explosive Fuel
Gasoline is extremely flammable, and its
vapors can cause an explosion if ignited. DO
NOT start the engine near spilled fuel or
combustible fluids. DO NOT fill the fuel tank
while the engine is running or hot. DO NOT
overfill tank, since spilled fuel could ignite if it
comes into contact with hot engine parts or
sparks from the ignition system. Store fuel in
approved containers, in well-ventilated areas
and away from sparks and flames. NEVER
use fuel as a cleaning agent.
SAFETY MESSAGE ALERT SYMBOLS
The three (3) 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 three words: DANGER,
Burn Hazards
DANGER: You WILL be KILLED or
SERIOUSLY injured if you do not follow
directions.
Engine components can generate extreme heat.
To prevent burns, DO NOT touch these areas
while the engine is running or immediately after
operations. NEVER operate the engine with
heat shields or heat guards removed.
WARNING: You CAN be KILLED or
SERIOUSLY injured if you do not follow
directions.
CAUTION: You CAN be injured if you
Potential hazards associated with operation of the mixer will be
referenced with Hazard Symbols which appear throughout this
manual, and will be referenced in conjunction with Safety
Message Alert Symbols.
PAGE 6 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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MS-20 MIXER — SAFETY MESSAGE ALERT SYMBOLS
Accidental Starting
Respiratory Hazard
ALWAYS place the ON/OFF switch in the OFF
position, disconnect the spark plug lead before
servicing the engine or equipment. Ground
the lead to prevent sparks that could ignite a
fire.
ALWAYS wear approved respiratory
protection.
Equipment Damage Messages
Sight and Hearing hazard
Other important messages are provided throughout this manual
to help prevent damage to your concrete saw, other property, or
the surrounding environment.
ALWAYS wear approved eye and hearing
protection.
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 7
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MS20H/MS20E MIXER — RULES FOR SAFE OPERATION
■
■
■
Whenever necessary, replace nameplate, operation and
safety decals when they become difficult read.
CAUTION:
Failure to follow instructions in this manual
may lead to serious injury or even death!
This equipment is to be operated by
trained and qualified personnel only!This
equipment is for industrial use only.
Manufacture does not assume responsibility for any accident
due to equipment modifications.
NEVER use accessories or attachments, which are not
recommended by Multiquip for this equipment. Damage to
the equipment and/or injury to user may result.
The following safety guidelines should always be used when
operating the MS20H/MS20E mortar and plaster mixers:
■
NEVERtouchthehotexhaustmanifold,
muffler or cylinder.Allowthese parts to
cool before servicing engine or mixer.
GENERAL SAFETY
■
DO NOT operate or service this equipment
beforereadingthisentiremanual.
■
■
This equipment should not be operated
by persons under 18 years of age.
■
■
HighTemperatures – Allow the engine to cool before adding
fuel or performing service and maintenance functions. Contact
with hot! components can cause serious burns.
NEVER operate this equipment without proper
protective clothing, shatterproof glasses, steel-
toed boots and other protective devices required
by the job.
The engine section of this mixer requires an adequate free
flow of cooling air. NEVER operate the mixer in any enclosed
or narrow area where free
flow of the air is restricted. If
the air flow is restricted it will
cause serious damage to
the mixer or engine and
may cause injury to people.
Remember the mixer's
engine gives off DEADLY
carbon monoxide gas.
■
■
NEVER operate this equipment when not
feeling well due to fatigue, illness or taking
medicine.
NEVER operate this equipment under the
influence or drugs or alcohol.
■
ALWAYS refuel in a well-ventilated area, away from sparks
and open flames.
■
■
ALWAYS check the machine for loosened threads or bolts
before starting.
■
ALWAYS use extreme caution when
ALWAYS wear proper respiratory (mask),
hearing and eye protection equipment when
operating the mixer.
working with flammable liquids. When
refueling, stop the engine and allow it to
cool. DO NOT smoke around or near the
machine. Fire or explosion could result from
fuel vapors, or if fuel is spilled on a hot
engine.
■
NEVER operate the mixer in an explosive atmosphere or
near combustible materials. An explosion or fire could result
causing severe bodily harm or even death.
PAGE 8 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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MS20H/MS20E MIXER — RULES FOR SAFE OPERATION
■
■
■
Stop the engine when leaving the mixer unattended.
Transporting
■
ALWAYS shutdown engine before transporting.
Block the unit when leaving or when using on a slope.
■
Tighten fuel tank cap securely and close fuel cock to prevent
fuel from spilling.
Maintain this equipment in a safe operating condition at all
times.
■
Drain fuel when transporting mixer over long distances or
bad roads.
■
■
■
■
■
ALWAYS stop the engine before servicing, adding fuel and
oil.
Maintenance Safety
■
NEVER Run engine without air filter. Severe engine may
occur.
NEVER lubricate components or attempt service on a running
mixer.
ALWAYS service air cleaner frequently to prevent carburetor
malfunction.
■
ALWAYS allow the mixer a proper amount of time to cool
before servicing.
ALWAYS be sure the operator is familiar with proper safety
precautions and operations techniques before using mixer.
■
■
Keep the mixer in proper running condition.
Fix damage to the mixer immediately and always replace
broken parts.
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.
■
■
Dispose of hazardous waste properly.Examples of potentially
hazardous waste are used motor oil, fuel and fuel filters.
■
■
■
■
DO NOT operate this equipment unless all guards and safety
devices are attached and in place.
DO NOT use food or plastic containers to dispose of
hazardous waste.
CAUTION must be exercised while servicing this equipment.
Rotating and moving parts can cause injury if contacted.
When towing, an adequate safety chain must be fastened to
the frame, refer to page 19.
Keep all inexperienced and unauthorized people away
from the equipment at all times.
■
■
Unauthorized equipment modifications will void all warranties.
Check all fasteners periodically for tightness. Also check
towing tongue bolt, lock nut and wheel lug nuts for wear.
■
Stop the engine and disconnect the spark plug before allowing
anybody’s hands in the mixing drum.
■
■
NEVER pour or spray water over the engine or electric motor.
ALWAYS stand clear of dump handle when mixer is in
operation. Any binding of material between the mixer blades
and drum will cause drum and handle to quickly move in the
discharge position.
■
■
Depending on type of mixer, test the ON/OFF switch for either
the gasoline engine or electric motor before operating. The
purpose of these switches is to shut down the engine or motor
of the mixer.
Refer to the HONDA Engine Owner's Manual for engine
technical questions or information recommended by Multiquip
for this equipment. Damage to the equipment and/or injury to
user may result.
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 9
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MS20H/MS20E MIXER — RULES FOR SAFE OPERATION
Emergencies
■
In emergencies 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.
■
ALWAYS know the location of the nearest fire extinguisher.
■
ALWAYS know the location of the nearest and first aid kit.
PAGE 10 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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MS20H/MS20E MIXER — OPERATION AND SAFETY DECALS
Machine Safety Decals
The MQ STOW mortar and plaster mixer is equipped with a number of safety decals.These decals are provided for operator safety
and maintenance information. Figure 1below illustrates these decals as they appear on the machine. Should any of these decals
become unreadable, replacements can be obtained from your dealer.
Figure 1. Mixer Operation and Safety Decals
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 11
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MS20H/MS20E MIXER — SPECIFICATIONS
Table 1. MS20H/MS20E Mixer Specifications
Capacity
7.0 cu. ft (198 liters)
1-1/2 to 2-1/2 bags
624 lbs. (283 kg.)
613 lbs. (278 kg.)
Bag Capacity
Weight MS20H
Weight MS20E
Length w/Tow Bar x W x H
64 x 55.5 x 56 in.
(162 x 141 x 142 cm.)
Height W/Dump Handle
Discharge Height
Drive
75 in. (191 cm.)
75 in. (191 cm.)
V-Belt/Gear
Dump Action
Manual
Table 2. Specifications (Engine & Electric Motor)
Model
HONDA GX240K1HA2
BALDOR 35L229S302
Air-cooled 4 stroke, 90 V-
Twin Cylinder, OHV,
Horizontal Shaft Gasoline
Engine
1.5 HP, 115/230, Single
Phase Electric Motor
Type
2.90 in. X 2.30 in.
(73 mm x 58 mm)
Bore X Stroke
N/A
Displacement
Max Output
14.81 cc
N/A
Engine/Electric Motor
8.0 H.P./3600 R.P.M.
1.5 H.P./1725 RPM
Approx. 1.59 U.S. Gallons
(6 Liters)
Fuel Tank Capacity
N/A
Fuel
Unleaded Gasoline
2-1/3 pints
N/A
N/A
Lube Oil Capacity
Centrifugal Fly-weight
Type
Speed Control Method
Starting Method
N/A
N/A
Recoil Start
14.0 x 16.9 X 16.1 in.
(355 X 430 X 410 mm)
13.3 x 8.7 X 9.06 in.
(338 X 220 X 230 mm)
Dimensions (L x W x H)
Dry Net Weight
55.1 lbs. (25 Kg.)
Approx. 22 lbs. (10 Kg.)
PAGE 12 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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MS20H/MS20E MIXER — GENERAL INFORMATION
GENERAL
GASOLINE ENGINE CARE
The MQ STOW Model MS20H (Honda GX240K1) gasoline
engine) and MS20E (electric motor) plaster and mortar mixers
are shipped completely assembled and have been factory tested.
For care and operation of the gasoline engine, refer to the engine
manufacturer’s operating instructions furnished with the engine.
We recommend draining and refilling the engine crankcase at
least every thirty hours of operation. Check the engine oil level
daily.
The drum batch capacity of these mixers is between 3.5 and
4.0 bags. With proper care, they will give continuous service
year-after-year.
GASOLINE MIXER OFF/ON SWITCH
These mixers can be powered by either gasoline or electric
motors.The shaft of the engine or electric motor is connected to
a drive belt pulley which is attached to a main gear.As the main
gear rotates it causes the paddle shaft to rotate.
This feature is on gasoline engine mixers only. Located on the
side of the engine cover. The purpose of this switch is to start
and stop the mixer in normal operation.
ELECTRIC MOTOR MIXER OFF/ON SWITCH
BEFORE STARTING
This feature is on electric motor mixers only.This switch is located
on top of the motor. Lift the engine cover to gain access to this
switch.The purpose of this switch is to start and stop the mixer in
normal operation. NEVER use the electric motor in an explosive
environment.
Before starting the engine, read the engine owners manual and
thoroughly understand the safety information.
Check the items listed below:
OIL LEVELS
ENGINETHROTTLE AND CHOKE CONTROLS
Be sure to check the oil levels in the engine and engine reduction
unit before starting the unit (gasoline model only).
Please refer to the engine owners manual for specific instructions.
HARDWARE
Check all hardware on the mixer before starting. Periodically
inspect all hardware. Loose hardware can contribute to early
component failure and poor performance. Use the torque chart
below as a general guideline and keep all hardware tight:
HARDWARE DIA
5/16"- 18
TORQUE (LB./FT.)
24
37
39
90
3/8" - 24
1/2" - 13
1/2" - 13 (Grade 8)
In accordance with our established
policy of constant improvement, we
reserve the right to amend these
specifications at any time without
notice.
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 13
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MS20H/MS20E MIXER — BASIC ENGINE COMPONENTS
Figure 2. Engine Controls and Components
5. FuelValve Lever – OPEN to let fuel flow, CLOSE to stop
INITIAL SERVICING
the flow of fuel.
The engine (Figure 2) must be checked for proper lubrication and
filled with fuel prior to operation. Refer to the manufacturers Engine
manual for instructions & details of operation and servicing.
6. Choke Lever – Used in the starting of a cold engine, or in
cold weather conditions. The choke enriches the fuel
mixture.
7. Air Cleaner – Prevents dirt and other debris from entering
the fuel system. Remove wing-nut on top of air filter
cannister to gain access to filter element.
1. Fuel Filler Cap – Remove this cap to add unleaded
gasoline to the fuel tank. Make sure cap is tightened
securely. DO NOT over fill.
NOTE
WARNING
WARNING
Operating the engine without an air filter,
with a damaged air filter, or a filter in need of
replacement will allow dirt to enter the
engine, causing rapid engine wear.
Adding fuel to the tank should be accomplished only
when the engine is stopped and has had an
opportunity to cool down. In the event of a fuel spill,
DO NOT attempt to start the engine until the fuel residue has been
completely wiped up, and the area surrounding the engine is dry.
8. Spark Plug – Provides spark to the ignition system. Set
spark plug gap to 0.6 - 0.7 mm (0.028 - 0.031 inch) Clean
spark plug once a week.
2. Throttle Lever – Used to adjust engine RPM speed (lever
advanced forward SLOW, lever back toward operator
FAST).
9. Muffler – Used to reduce noise and emissions.
WARNING
3. Engine ON/OFF Switch – ON position permits engine
Engine components can generate extreme heat.
To prevent burns, DO NOT touch these areas
while the engine is running or immediately after operating. NEVER
operate the engine with the muffler removed.
starting, OFF position stops engine operations.
4. Recoil Starter (pull rope) – Manual-starting method. Pull
the starter grip until resistance is felt, then pull briskly and
smoothly.
10. Fuel Tank – Holds unleaded gasoline. For additional
information refer to engine owner's manual.
PAGE 14 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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MS20H/MS20E MIXER — ELECTRIC MOTOR
Electric Motor
Electric MotorVoltage Switch
For maintenance care and operation of the electric motor, refer
to your electric motor instruction booklet furnished with the motor.
1.
ALWAYS make certain the motor switch is "OFF" and the
power cord has been disconnected from the power source.
2.
Remove the voltage lock-out bolt (Figure 3). Change the
position of the voltage change toggle switch from 115
VAC to 230 VAC. The mixer is factory wired for 115 VAC
operation.
Protect the electric motor from dust as much as possible and
keep ventilating openings clean.
CAUTION:
3.
4.
Replace the voltage lock-out bolt.
■
DO NOT spray water at any time on the
electric motor.
DO NOT operate electric motor in a
Important!, when changing the input voltage to the motor
from 115 to 230 VAC the plug on the motor power cord
must also be changed. See Table 3.
■
explosive environment.
The electric motor used in this mixer is a single-phase 1.5 HP
motor. The input voltage requirement for this motor is either 115
or 230 VAC only.
Table 3. Electric Motor Wiring Information
Motor
115-230 VAC - Single Phase
Horsepower
Rating
NEMA Plug Connector
Mating NEMA
Receptacle Connector
Electric Motor Connection
1.5 HP
(115 VAC)
A 12 inch electrical cable (Figure 2) with a pigtail at one end is
provided with the electrical motor for hookup to a power source.
Table 1. shows the required NEMA connector for the desired
motor horsepower rating. In addition, Table 2 also shows the
matching NEMA approved connector for the required extension
cord.
L5-20P P/N EM940537
L6-20P P/N 940539
L5-20R P/N EM940538
1.5 HP
(230 VAC)
L6-20R P/N 940540
Table 4. Recommended Extension Cord Size
s
ALWAYS, make certain that the power source required for the
electric motor is correct and always use the correct NEMA
configuration plug. Failure to supply the correct voltage to the
motor can severely damage the motor.
50 ft.
75 ft.
100 ft.
200 ft.
Model
Motor Voltage
(15.24 m) (22.86 m) (30.48 m) (60.96 m)
115
No. 12
No. 14
No. 10
No. 12
No. 8
No. 6
No. 8
MS20E
(Electric)
1.5 HP
The motor supplied is wired for 115 VAC grounded operation.
Make certain that the correct size grounded (3-wires) extension
cord is used.SeeTable 4.
230
No. 12
Motors can burn out when the line voltage falls 10% below the
voltage rating of the motor. Failure to use proper voltage will
cause the motor to overheat and actuate the overload switch.
If overload protection should actuate because of improper voltage
or any other malfunction, turn the main switch on the motor to the
"OFF" position and correct the problem, press the reset switch
button, and turn the main switch to the "ON" position.
It is strongly recommended that all
electrical wiring be done by a licensed
electrician. Special attention should be
given to the electric switch as well as
NOTE
the over-and-under voltage protection devices as per regulations
set forth in the local electrical safety code handbook.
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 15
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MS20H/MS20E MIXER — ELECTRIC MOTOR
Figure 3. Single Phase Electric Motor with 18 inch Pigtail Cable
PAGE 16 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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MS20H/MS20E MIXER — CONTROLS
8.
Mixing Paddles — Used in the mixing of material. This
unit uses four different types of paddles to provide a fast
uniform mix.
9.
Bag Cutter—This feature allows compound mixing bags
to be opened easily, therefore allowing the contents of the
bag to fall directly into the mixing drum.
10. Safety Grill — Provided for operator safety. This safety
grill is designed to keep hands and solid objects out of the
mixing drum when in use.This grill should be closed at all
times when mixer is in use. DO NOT remove the grill or
grill opening bar. Keep the grill clean by washing it down
daily.
11. Dump Handle — Pull this handle downward to dump the
contents of the drum. Push the handle upward to return
the drum to its vertical position.
12. Pivot Point/Zerk Fitting — There is, on each end of the
mixing drum a zerk grease fitting.These fittings lubricate
the dumping mechanism. Lubricate both fittings at least
twice a week.
Figure 4. Mixer Components
Figure 4 illustrates the basic components and controls of
the MS20H/MS20E mixer
13. Dump Handle Release Pin — Pull this pin outward
(spring loaded) to release the drum, then pull down on the
dump handle to place the drum in the dump position. When
drum is in dump position, pin will automatically lock drum.
1.
2.
3.
Tires Ply — The tire ply (layers) number is rated in letters;
This mixer uses 13-inch 4-ply tires.
Engine Cover — Lift this cover to gain access to the engine
compartment.
14. Tow Bar/Coupler — This mixer uses a 2-inch coupler or
Belt Slip Lever — When starting this lever should be
move upward and to the left. For mixing place the lever in
the down position. See attached decal located adjacent to
lever.
pintle
15. Safety Chain — This mixer uses a 3/16-inch thick, 72-
inches long zinc-plated saftey chain. ALWAYS connect
the safety chain when towing.
4.
5.
ON/OFF Switch (electric) — This switch is provided on
mixers with electric motors.To gain access to this switch,
lift the engine cover.When activated it will shut down the
electric motor.
16. Steel Mixing Drum — Mixing materials such as mortar,
plaster are to be placed into this drum for mixing. Always
clean the drum after each use.
17. Chock Blocks — Place these blocks (not included as
part of the mixer package) under each mixer wheel to
prevent rolling.
ON/OFF Switch (gasoline) —This switch is provided on
mixers with gasoline engines only and is located on the
side of the engine cover. When activated it will shut down
the engine.
6.
7.
Latch — Use this latch to secure the engine compartment
cabinet.
Safety Grill Lock Handle — To prevent injury to hands
and arms, the safety grill should ALWAYS be locked when
the mixing of plaster or mortar is required. Also when
transporting the mixer the safety grill should be locked.
The safety grill should only be un-locked when cleaning
of the blades and drum is required.
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 17
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MS20H/MS20E MIXER —TOWING GUIDELINES
■
Avoid sudden stops and starts.This can cause skidding, or
jackknifing. Smooth, gradual starts and stops will improve
gas milage.
Towing Safety Precautions
CAUTION :
■
■
Avoid sharp turns to prevent rolling.
■
Check with your county or state safety
towing regulations department before
towing your mortar and plaster mixer.
DO NOT transport mixer with fuel in the fuel tank.
CAUTION :
If the trailer coupler is deformed replace
To reduce the possibility of an accident while transporting
the mixer on public roads, always make sure that the trailer
and the towing vehicle are in good operating condition and
both units are mechanically sound.
entire coupler. NEVER tow the pump with
a defective trailer coupler. There exist the
possibility of the trailer separating from
the towing vehicle.
The following list of suggestions should be used when towing
the mixer:
Mixer Trailer Vehicle Connection
1. Check the vehicle hitch ball, and trailer coupler for signs
of wear or damage. Replace any parts that are worn or
damaged before towing.
■
■
■
Make sure that the hitch and coupling of the towing vehicle
are rated equal to, or greater than the trailer "gross vehicle
weight rating" (GVWR).
2. Use only the 2-inch ball diameter with a towing capability
of 5,000 lbs. (2,268 kg) as indicated on the trailer's
coupler. Use of any other ball diameter will create an
extremely dangerous condition which can result in
separation of the coupler and ball or ball failure.
ALWAYS inspect the hitch and coupling for wear.NEVER
tow the mixer with defective hitches, couplings, chains
etc.
CHECK the tire air pressure on both the towing vehicle
and the trailer. Also check the tire tread wear on both
vehicles.
3. Be sure the coupler is secured to the hitch ball and the
lock lever is down (locked).
■
■
■
ALWAYS make sure the trailer section of the mixer is
equipped with a "Safety Chain".
4. Attach safety chains as shown in Figure 5. Remember
to cross the safety chains underneath the towpole of
the mixer.
ALWAYS attach mixer's safety chain to the frame of the
towing vehicle.
5. After towing for about 50 miles recheck the entire towing
system for tightness.
Remember in most cases the maximum speed unless
otherwise posted for highway towing is 55 MPH, however
before towing your mixer, check your local state, and
county vehicle towing requirements. Recommended off-
road towing is not to exceed 10 MPH or less depending
on type of terrain.
Recommended Maintenance
1. Smear ball socket and clamp face with chassis grease.
Periodically oil pivot points and were surfaces of coupler
with SAE 30 W motor oil.
■
■
Place chocked blocks underneath wheel to prevent
rolling, while parked.
2. When parking or storing the mixer, keep the coupler off
the ground so dirt and other debris will not build up in
the ball socket.
Inflate tires to correct pressure, inspect tires for cuts,
and excessive wear. See Table 4 (Tire Wear
Troubleshooting).
■
■
Check wheel mounting lug nuts with a torque wrench.
Torque wheel lug nuts as described in the "Lug Nut
Torque Requirements", Table 6.
Check tightness of suspension hardware (nuts and bolts)
.
PAGE 18 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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MS20H/MS20E MIXER — SAFETY CHAIN CONNECTION
2. Route the safety chain through the holes just above the
Always Tow with
a Safety Chain
CAUTION
tow bar, located on each side of the mixer stand.
Loop the chain together and place under the tow bar.
Secure the loop with the connector link.
NEVER! tow the mixer with the safety chain removed.
The safety chain is intended to prevent complete
separation of the mixer from the towing vehicle in the
event of a tow bar failure.
3. extend the safety chain along the length of the tow bar,
looping it through the tow bar's connector link. Remove
any excess chain slack.
Reference Figure 5 for the installation of the safety chain.
4. Connect the free end of (clevis safety hook) the safety
chain to the towing vehicle. Remember it is critical that
the length of the chain be properly adjusted, to prevent
the draw bar and the front of the mixer stand from
dropping to the the ground (contact) in the event the
draw bar becomes disconnected from the towing vehicle.
Tow Bar to Mixer Connection
1. Insert the tow bar through the round opening at the bottom
of the mixer stand.
Align the hole on the tow bar with the hole on the mixer
frame, and insert 1/2-inch bolt through tow bar and frame.
Secure tow bar to frame with 1/2-inch nylock nut.Tighten
to 40 ft.-lbs.
Drum Saftey
CAUTION
when Towing
DO NOT tow the mixer unless the mixing drum is
completely empty. ALWAYS make sure the drum latch
pin is fully engaged to the right (Figure 6) of the drum
stop block. This will keep the drum from rotating.
Figure 5. Mixer Safety Chain and Coupler
Figure 6. Drum Latch Pin
(Tow or Locked Position)
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 19
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MS20H/MS20E MIXER —TRAILER SAFETY GUIDELINES
Tires/Wheels/Lug Nuts
Tires and wheels are a very important and critical compo-
nents of the trailer. When specifying or replacing the trailer
wheels it is important the wheels, tires, and axle are prop-
erly matched.
CAUTION :
DO NOT attempt to repair or modify a
wheel. DO NOT install an inter-tube to
correct a leak through the rim. If the rim
is cracked, the
air pressure in the inter-tube may
cause pieces of the rim to
explode (break-off) with great
force and can cause serious eye
or bodily injury.
Suspension
The rigid type axle and associated hardware (Figure 7) should
be periodically inspected for signs of excessive wear, elon-
gation of bolt holes, and loosening of fasteners. Replace
all damaged parts immediately.
Tires 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 maxi-
mum tire life and tread wear.
Table 5 (Tire Wear Troubleshooting) will help pinpoint the
causes and solutions of tire wear problems.
Figure 7. Axle Support Components
ALWAYS wear safety glasses when
removing or installing force fitted
parts. Failure to comply may result
NOTE
in serious injury.
PAGE 20 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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MS20H/MS20E MIXER —TRAILER SAFETY GUIDELINES
Lug NutTorque 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 8. DO NOT
torquethewheellugnutsallthewaydown.Tighteneachlug
nut in 3 separate passes as defined by Table 6.
Table 6. Tire Torque Requirements
Wheel Size
First Pass
FT-LBS
Second Pass
FT-LBS
Third Pass
FT-LBS
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
3. Afterfirstroaduse,retorquealllugnutsinsequence.Check
all wheel lug nuts periodically.
Figure 8. Wheel Lug Nuts Tightening Sequence
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 21
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MS20H/MS20E MIXER — PADDLE BLADE ADJUSTMENT
Adjust paddles as shown in Figure 9.
Figure 9. Paddle Blade Adjustment, Steel Drum
PAGE 22 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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MS20H/MS20E MIXER — PRE-INSPECTION
CAUTION
NEVER operate the mixer
in a confined area or
enclosed area structure
that does not provide ample
free flow of air.
ALWAYS wear approved eye and hearing
protection before operating the mixer.
Figure 10. Engine Oil Dipstick (Removal)
3. Insertandremovethedipstickwithoutscrewingitintothefiller
neck. Check the oil level shown on the dipstick.
NEVER place hands or feet inside the guard
cover while the engine is running. ALWAYS
shut the engine down before performing any
kind of maintenance service on the trowel.
4. Iftheoillevelislow(Figure11), filltotheedgeoftheoilfiller
holewiththerecommendedoiltype(Table7).Maximum oil
capacity is 400 cc.
It is recommended that the mixer's kill switch be used to stop
the engine after every use. Doing this will verify that the switch is
working properly and presents no danger to the operator.
Reference manufacturer engine
manual for specific servicing
nstructions.
Before Starting
1. Read safety instructions at the beginning of manual.
2. Clean the mixer, removing dirt and dust, particularly the
engine cooling air inlet, carburetor and air cleaner.
3. Check theairfilterfor dirtanddust. Ifairfilterisdirty,replace
air filter with a new one as required.
4. Check carburetor for external dirt and dust. Clean with dry
compressedair.
Figure 11. Engine Oil Dipstick (Oil Level)
Table 7. Oil Type
5. Checkfasteningnutsandboltsfortightness.
Engine Oil Check
Season
Summer
Spring/Fall
Winter
Temperature
25°C or Higher
25°C~10°C
Oil Type
SAE 10W-30
SAE 10W-30/20
SAE 10W-10
1. Tochecktheengineoillevel,placethe trowelonsecurelevel
ground with the engine stopped.
2. Remove the filler dipstick from the engine oil filler hole
(Figure 10) and wipe it clean.
0°C or Lower
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 23
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MS20H/MS20E MIXER — PRE-INSPECTION
V-belt Check
Explosive Fuel
A worn or damagedV-belt can adversely affect the performance
of the mixer.If aV-belt is defective or worn simply replace the V-
belt as outlined in the maintenance section of this manual.
Fuel Check
Blade Check
If your mixer has a gasoline engine, determine if the engine fuel
is low. If fuel is low, remove the fuel filler cap and fill with unleaded
gasoline. Motor fuels are highly flammable and can be dangerous
if mishandled. DO NOT smoke while refueling. DO NOT attempt
to refuel the trowel if the engine is hot! or running.
Check for worn or paddle blades. Make sure that all blades are
adjusted properly.See blade adjustment procedure on page 22.
Replace all defective or damaged blades immediately.
Controls
Start/Stop Switches
1. Remove the gasoline cap located on top of fuel tank.
This mixer has been equipped with a start/stop switch for both the
gasoline and electric motor mixers. These switches should be
tested every time the engine or motor is started.
2. Visuallyinspecttoseeiffuellevelislow. Iffuelislow,replenish
with unleaded fuel.
Lubricants
Engine Oil
NEVER! disable or disconnect the
1.
2.
Remove the engine oil dipstick from its holder.
start/stop switch. It is provided for
operator safety.Injury may result if it is
disable, disconnected or improperly
maintained.
Determine if the engine oil is low, add correct amount of
engine oil to bring oil level to a normal safe level.
Grease Fittings (Zerk)
1.
Check the zerk grease fittings at each end of the mixing
drum. These grease fittings lubricate the dumping
mechanism. If the dumping handle is stiff or hard to move
lubricate these fittings.
PAGE 24 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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MS20H/MS20E MIXER — INITIAL START-UP
2.
To start a cold engine, move the choke lever (Figure 13) to
the CLOSED position.
This section is intended to assist the operator with
the initial start-up of the MS-20H (gasoline) or
MS20E (electric) mixer.It is extremely important that
this section be read carefully before attempting to
use the mixer in the field.
DO NOT use your mixer until this section is thoroughly
understood.
CAUTION:
Failure to understand the operation of the
MS20H/MS20E mixers could result in severe
damage to the mixer or personal injury.
See Figure 4 (Page 17) for the location of any control referenced
in this manual.
Figure 13. Choke Lever
3.
Move the throttle lever (Figure 14) away from the slow
position, about 1/3 of the way toward the fast position.
Starting (gasoline only)
The following steps outline the procedure for starting the engine.
Depending on the type of engine employed in the mixer the
steps may vary slightly. If your mixer has an electric motor
disregard this section.
1.
Move the fuel shut-off lever (Figure 12) to the ON position.
Figure 14. Throttle Lever
Figure 12. Fuel Shut-OFF Lever
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 25
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MS20H/MS20E MIXER — INITIAL START-UP
4.
Turn the engine switch (Figure 15) to the ON position.
CAUTION:
Make certain the drum lock pin (Figures 18
and 19) is placed to the right (when viewing
the mixer from the towpole end) of the drum
stop block which is welded to the front side of
the drum. Also make sure lock pin is fully
engaged (locked).This will prevent the drum
from tipping.
Figure 15. Engine ON/OFF Switch
5.
Located on the engine cover is the main start/stop switch
(Figure 16). Pull this switch outward to start the engine.
Figure 19. Drum Lock Pin (Side-View)
Figure 16. Start/Stop Switch (gasoline)
6.
Place the belt slip lever (Figure 17) in the START/STOP
position.
Figure 19. Drum Lock Pin (Right Position)
7.
Pull the starter grip (Figure 20) lightly until you feel
resistance, then pull briskly.Return the starter grip gently.
Figure 18. Belt Slip Lever
(Start/Stop Position)
Figure 20. Starter Grip
PAGE 26 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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MS20H/MS20E MIXER — INITIAL START-UP
8.
Place the belt slip lever (Figure 21) in the mix position.
This will tilt the engine placing tension on the V-belts
enabling the shaft to rotate.
Figure 22. Drum Lock Pin (Left Position)
Be sure to stand clear of the
Figure 21. Belt Slip Lever
(Mix Position)
dump handle when the mixer is
operational. Any binding of
material between the mixer
Starting (electric only)
blades and the drum will cause the drum handle to move to the
discharge position, thus causing bodily harm.
1.
Using an adequate size extension cord (see Table 4),
connect one end of the extension cord to the plug on the
electric motor, connect the other end to the power source.
Make sure the motor is configured for the proper operating
voltage.
Starting (electric only)
1.
Using an adequate size extension cord (see Table 4),
connect one end of the extension cord to the plug on the
electric motor, connect the other end to the power source.
Make sure the motor is configured for the proper operating
source.
2.
Set the electric motor's ON/OFF switch (Figure 3) to the
ON position.
2.
Set the electric motor's ON/OFF switch (Figure 3) to the
Mixing Dumping
ON position.
1.
The paddle shaft inside the drum should be rotating at this
time.
STOPPINGTHE MIXER (gasoline)
1.
2.
Place the belt slip lever in the start/stop position.
2.
Lift the mixing bag compound onto the steel grate over the
bag cutter and let the contents fall into the drum.
Push the main start/stop switch (Figure 8) inward to stop
the engine.
3.
4.
Add water, and mix compound to desired consistency.
3. Turn the fuel shut-off valve to the OFF position.
When charging, mixing, or dumping a batch of plaster or
mortar the drum lock pin should be placed to the left
(when viewing the mixer from the towpole end) of the drum
stop block which is welded to the front side of the drum.
See Figure 22.
4.
5.
Disconnect the spark plug.
Clean drum of all debris and foreign matter.
STOPPINGTHE MIXER (electric)
1.
2.
3.
Place the electric motor's start/stop switch (Figure 3) in
This will allow the operator to use both hands on the drum
handle during dumping. Please note that when the lock pin
is placed to the left, the drum will only rotate in a clockwise
direction. When the dump handle is released, the drum will
return to an upright position.
the OFF position.
Disconnect the electric motor's extension cord from its
power source.
Clean drum of all debris and foreign matter
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 27
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MS20H/MS20E MIXER — MAINTENANCE
CAUTION:
WHEEL BEARINGS
After every 3 months of operation, remove the hub dust cap and
inspect the wheel bearings. Once a year, or when required,
disassemble the wheel hubs remove the old grease and repack
the bearings forcing grease between rollers, cone and cage
with a good grade of high speed wheel bearing grease (never
use grease heavier than 265 A.S.T.M.penetration (“No.2.”) Fill
the wheel hub with grease to the inside diameter of the outer
races and also fill the hub grease cap.
Failure to lubricate the zerk grease fittings
two or three times a week will cause the
dumping mechanism to stiffen, making the
mixer hard to dump.
BEARING BRACKET
Grease the bearing bracket every month.
Reassemble the hub and mount the wheel. Then tighten the
adjusting nut, at the same time turn the wheel in both directions,
until there is a slight bind to be sure all the bearing surfaces are
in contact.
GEAR ALIGNMENT
The countershaft and drive pinion are mounted on a slotted
base.To align gears, loosen the pillow block mounting bolts and
move them until the necessary alignment has been made.
Then back-off the adjusting nut 1/6 to 1/4 turn or to the nearest
locking hole or sufficiently to allow the wheel to rotate freely
within limits of .001" to .010" end play.Lock the nut at this position.
Install the cotter pin and dust cap, and tighten all hardware.
GEAR LUBRICATION
The surface of the pinion and bull gear should be very lightly
greased every 250 hours. IMPORTANT! avoid over-greasing.
Excess grease will accumulate contaminates and cause
premature wear.
DRUM HEAD SEAL CARE
CLEANING
Grease every 40 hours of operation using any grade #1 lithium
base grease. Appy grease until visible inside of mixing tub (over
grease).This will purge the seal system of contamination.
ALWAYS disconnect the spark plug wire before cleaning the
inside of the drum.
NEVER pour or spray water over the gasoline engine or electric
motor.
PADDLE SHAFT BEARINGS
The paddle shafts in the MQ STOW mixers rotate in sealed ball
bearings, which require no additional lubrication as they are
packed and sealed at the factory.
For consistent performance, long life and high quality mixing,
thoroughly clean the mixer inside and out at the end of each
day’s operation.To prevent lumps of dried mortar from forming
and contamination of future batches, do not allow a buildup of
materials to form on the blades or anywhere inside the drum.
There is, on each end of the mixing drum, an zerk grease fitting.
Oil these fittings two or three times each week as they lubricate
the dumping mechanism of the mixing drum.
PAGE 28 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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MS20H/MS20E MIXER —TROUBLESHOOTING (ENGINE)
Practically all breakdowns can be prevented by proper
If the problem cannot be remedied, please leave the unit
just as it is and consult or company's service department.
handling and maintenance inspections, but in the event of a
breakdown, please take a remedial action following the
diagnosis based on the Engine, Mixer and Electric Motor
Troubleshooting (Tables 8, 9 and10) information shown below
and on the proceeding pages.
TABLE 8. ENGINE TROUBLESHOOTING
SYMPTOM
POSSIBLE PROBLEM
SOLUTION
Inspect carburetor to see if fuel
is reaching it?
Check fuel line
No Fuel?
Add Fuel
Water in fuel tank?
Fuel filter clogged?
Stuck carburetor?
Spark plug is red?
Flush or replace fuel tank.
Replace fuel filter
Check float mechanism.
Poor starting
Spark plug is fouled. Check tranistor ignition unit.
Insufficient compression, injected air leaking. Carburetor jets are
clogged (overflow).
Spark plug is blue-white?
No spark present at tip of spark
plug?
Tranistor ignition unit broken, high voltage cord cracked or broken.
Start/Stop switch broken. Replace spark plug if fouled.
No oil?
Add oil as required.
Oil pressure alarm lamp blinks
upon starting?
Check Automatic shutdown circuit "oil sensor".
Replace cylinder and piston and if necessary axel joint.
Tighten cylinder head connecting bolts.
Engine will not turn over?
Cylinder head connecting bolts
loose?
Cylinder head gasket damaged? Replace cylinder head gasket.
Insufficient power output "no
compression"
Malfunction of valve seat?
Spark plug is loose?
Worn piston rings?
Re-seat valves.
Replace spark plug.
Replace piston rings.
Malfunction in air-cleaner
system, air filter clogged?
Clean or replace air filter.
Air leaking in from interface
between carburetor and cylinder
head?
Tighten bolts between carburetor and cylinder head. Replace
cylinder head gasket.
Insufficient power output
"compression"
Clean or replace fuel filter.
Clean or replace carburetor.
Check carburetor float.
Malfunction in fuel system?
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 29
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MS20H/MS20E MIXER —TROUBLESHOOTING (ENGINE)
TABLE 8. ENGINE TROUBLESHOOTING (CONTINUED)
SYMPTOM
POSSIBLE PROBLEM
Malfunction in cooling fan?
Air in-take filter clogged?
SOLUTION
Check or replace cooling fan.
Insufficient power output
"compression" and overheats
Clean or replace air in-take filter.
Over accumulation of exhaust
products?
Clean and check valves.
Check muffler, replace if necessary.
Burns to much fuel
Wrong spark plug?
Replace spark plug with manufactures suggested type spark plug.
Replace lubricating oil with correct viscosity.
Replace rings
Lubricating oil is wrong
viscosity?
Exhaust color is continiously
"WHITE"
Worn rings?
Air cleanner clogged?
Clean or replace air cleaner.
Choke valve has not been set
to the correct position?
Adjust choke valve to the correct position.
Exhaust color is continiously
"BLACK"
Carburetor defective, seal on
carburetor broken?
Replace carburetor or seal.
Adjust carburetor.
Poor carburetor adjustment
"engine runs too rich?
PAGE 30 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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MS20H/MS20E MIXER —TROUBLESHOOTING (MIXER/MOTOR)
TABLE 9. MIXER TROUBLESHOOTING
SYMPTOM
POSSIBLE PROBLEM
Worn or defective V-belt?
SOLUTION
Replace V-belt.
Blades will not rotate.
Adjustment lever mis-aligned?
Check position of adjustment lever. Adjust if necessary.
Replace seals.
Material leaking from drum
ends.
Worn or defective paddle shaft
seals?
Defective or worn drum support
brackets?
Apply grease to bracket or replace.
Drum difficult to discharge (tilt)
Blades adjusted too tight.
Adjust blades until they almost touch side walls of drum.
TABLE 10. ELECTRIC MOTOR TROUBLESHOOTING
POSSIBLE PROBLEM
SYMPTOM
SOLUTION
No voltage to motor?
Check power source.
Replace extension cord.
Replace switch.
Defective extension cord?
Blades will not rotate.
Defective motor ON/OFF switch?
Defective motor windings?
Repair windings or replace windings.
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 31
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MS20H/MS20E MIXER —WIRING DIAGRAM (ELECTRIC MOTOR)
Figure 22. Electric MotorWiring Diagram
PAGE 32 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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NOTE PAGE
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 33
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EXPLANATION OF CODE IN REMARKS COLUMN
How to read the marks and remarks used in this parts book.
Section 1: Items Found In the “Remarks” Column
Serial Numbers-Where indicated, this indicates a serial
number range (inclusive) where a particular part is used.
Model Number-Where indicated, this shows that the
corresponding part is utilized only with this specific model
number or model number variant.
Section 2: Items Found In the “Remarks” Column
Serial Numbers-Where indicated, this indicates a serial number
range (inclusive) where a particular part is used.
Model Number-Where indicated, this shows that the
corresponding part is utilized only with this specific model number
or model number variant.
Section 3: Items Found In the“Items Number”Column
All parts with same symbol in the number column, , #,
, belong to the same assembly or kit.
+
, %, or
*
■
Note: If more than one of the same reference number is listed,
the last one listed indicates newest (or latest) part available.
PAGE 34 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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MS20H/MS20E MIXER — SUGGESTED SPARE PARTS
MS20H/MS20E MIXER 1TO 3 UNITSWITH
HONDA GX240K1HA2 ENGINE
Qty.
P/N
Description
2 ............ 491010 ............ RUBBER LATCH ASSY.
1 ............ 503640 ............ V-BELT, HONDA 8.0 HP
1 ............ 491112 ............ V-BELT, ELECTRIC MOTOR
1 ............ 25647-503 ...... WIPER KIT
2 ............ 3065................ SEAL, AXLE
1 ............ 29173-001 ...... STOP SWITCH
3 ............ 9807956846 .... SPARK PLUG HONDA 8.0 HP
3 ............ 17210ZE2505 . ELEMENT, AIR HONDA 8.0 HP
1 ............ 28462ZE2W11 ROPE, RECOIL STARTER
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 35
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MS20H/MS20E MIXER — NAMEPLATE AND DECALS
NAMEPLATE AND DECALS.
PAGE 36 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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MS20H/MS20E MIXER — NAMEPLATE AND DECALS
NAMEPLATE AND DECALS.
NO
PART NO
TBD
21780-001
DCL160
TBD
PART NAME
DECAL: STOW (MULTIQUIP)
DECAL:WARNING
QTY.
2
1
1
1
1
1
1
1
REMARKS
2
*
3
*
4
DECAL: PROP. 65
*
5
DECAL: KEEP COVER CLOSED
DECAL:CAUTION READ
DECAL: BELT SLIP LEVER
DECAL:WARNING GRATE
DECAL: PUSH IN STOP
DECAL: NAMEPLATE ....................... 1 ............ CONTACT MQ PARTS DEPT.
DECAL:CAUTION, DRUM LOCK
DECAL:WARNINGTOW POLE
*
6
TBD
*
7
21781-001
25259-001
TBD
*
8
*
9
*
10
11
25474-001
21513-001
DCLMS20
1
1
*
12
13
*
KIT, DECAL ....................................... 1 ............ INCLUDES ITEMS W/
*
SEE DECAL ILLUSTRATIONS ON PAGE 11.
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 37
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MS20H/MS20E MIXER — HONDA ENGINE ASSY.
HONDA ENGINE ASSY.
PAGE 38 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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MS20H/MS20E MIXER — HONDA ENGINE ASSY.
HONDA ENGINE ASSY.
NO
11
20
27
28
29
32
33
34
42
66
94
97
99
98
PART NO
PART NAME
QTY.
1
2
44
50
50
6
6
6
4
REMARKS
20559-001
20178-001
07030-006
07029-006
07033-006
07030-005
07029-005
07033-005
06501-014
06500-016
10057-032
GX240K1HA2
24975-001
505205
POWER MOUNT SPRING
PILLOW BLOCK BEARING
FLAT WASHER 3/8
LOCK WASHER 3/8
HEX NUT 3/8-16
FLAT WASHER 5/16
LOCK WASHER 5/16
HEX NUT 5/16-18
CAP SCREW 3/8-16 x 1-3/4
CAP SCREW 5/16 - 18 x 2 ............... 2 ............ B & S 7.0 HP
SQUARE KEY 1/4 x 1-1/2
ENGINE- 8 H.P. HONDA .................. 1 ............ REPLACES 21922-401
BELT RETAINER BAR
DRIVE PULLEY
3
1
1
100
102
103
104
106
107
108
121
12969-008
20019-001
20022-001
492077
07030-016
503640
SOCKET SET SCREW 5/16-18
PINION SHAFT
PINION GEAR
DRIVEN PULLEY
FLAT WASHER
V-BELT .............................................. 2 ............ HONDA, B &S
4
1
1
1
AR
20771-354
06500-010
ENGINE MOUNT
CAP SCREW 5/16- 18 x 1-1/4
1
1
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 39
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MS20H/MS20E MIXER — ELECTRIC MOTOR ASSY. (ELECTRIC)
ELECTRIC MOTOR ASSY.
PAGE 40 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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MS20H/MS20E MIXER — ELECTRIC MOTOR ASSY. (ELECTRIC)
ELECTRIC MOTOR ASSY.
NO
20
27
28
29
32
33
34
82
83
84
92
93
94
95
99
100
101
PART NO
PART NAME
PILLOW BLOCK
QTY.
2
40
50
50
6
6
6
1
1
1
1
1
2
2
1
4
5
REMARKS
20178-001
07030-006
07029-006
07033-006
07030-005
07029-005
07033-005
493206
20250-352
502213
20216-001
530088
10057-032
491112
24975-001
12969-008
06500-008
FLAT WASHER 3/8
LOCK WASHER 3/8
HEX NUT 3/8-16
FLAT WASHER 5/16
LOCK WASHER 5/16
HEX NUT 5/16-18
MOTOR & CONTROL ASSY.
MOTOR MOUNT UNIT
DRIVE PULLEY
PINION & SHAFT
DRIVEN PULLEY
SQUARE KEY 1/4 x 1-1/2
V-BELT
BELT RETAINER BAR
SOCKET SET SCREW 5/16-18
CAP SCREW 5/16-18 x 1
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 41
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MS20H/MS20E MIXER — STEELTUB ASSY.
STEELTUB ASSY.
PAGE 42 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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MS20H/MS20E MIXER — STEELTUB ASSY
STEELTUB ASSY.
NO
2
PART NO
PART NAME
DRUM
QTY.
1
REMARKS
29282-351
29212-351
20657-001
27127-004
20561-001
20655-001
25492-001
20211-001
21380-001
18937-003
20654-001
20472-001
08602-006
20576-501
13698-062
17985-010
07030-006
07029-006
07033-006
06505-012
10057-034
17985-012
07033-010
20104-001
08326-007
07030-008
13698-010
07594-012
07028-055
07745-001
3
6
7
8
GRATE
TRUNNION HUB
LIFT BAR
SEALED BEARING
RETAINING RING
DRUM HANDLE
MAIN GEAR SPACER
DRUM HANDLE GRIP
SPECIAL WASHER
SHAFT SEAL
1
2
2
2
2
1
1
1
2
2
1
12
2
9
10
13
15
17
19
21
22
23
24
26
27
28
29
51
53
54
56
65
86
88
90
91
109
110
MAIN GEAR
FLAT WASHER 3/8
DRUM BEARING ASSY.
HITCH PIN
1
CARRIAGE BOLT 3/8-16 x 1-1/4
FLAT WASHER 3/8
LOCK WASHER 3/8
HEX NUT 3/8-16
CAP SCREW 5/8 -11 x 1-1/2
SQUARE KEY 3/8 x 2
CARRIAGE BOLT 3/8 - 16 x 1-1/2
HEX NUT 5/8-11
SHAFT SEAL
CLEVIS PIN
FLAT WASHER 1/2
HITCH PIN
ROLL PIN 3/16 x 3/4
COTTER PIN 5/32 x 1
GREASE FITTING
22
40
50
50
2
1
4
1
2
1
3
1
2
2
3
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 43
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MS20H/MS20E MIXER — PADDLE SHAFT ASSY.
PADDLE SHAFT ASSY.
CENTER
ENGINE END
2
45
64
63
38
26
TOW
END
ENGINE
END
64
3
1
35
63
47
36
43
26
39
27
46
28
37
27
40
44
26
29
28
29
39
27
40
CENTER
TOW END
28
29
NOTES:
WHEN ORDERING SCRAPPER
AND WIPER (SHORT) SEE ITEMS
43 AND 44 TOW END.
1
2
3
WHEN ORDERING SCRAPPER
AND WIPER(LONG) SEE ITEMS
39 AND 40 CENTER TOW END.
WHEN ORDERING SCRAPPER
AND WIPER (LONG) SEE ITEMS
39 AND 40 ENGINE END.
PAGE 44 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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MS20H/MS20E MIXER — PADDLE SHAFT ASSY.
PADDLE SHAFT ASSY.
NO
PART NO
PART NAME
CARRIAGE BOLT 3/8-16 x 1-1/4
FLAT WASHER 3/8
LOCK WASHER 3/8
HEX NUT 3/8-16
PADDLE ASSY. TOW POLE END
PADDLE ASSY. ENGINE END
PADDLE ASSY. CNT.TOW END
PADDLE ASSY. CTN. ENG. END
WIPER LONG
SCRAPER LONG
WIPER SHORT
QTY.
22
44
50
50
1
1
1
1
4
4
2
2
4
4
1
16
6
REMARKS
26
17985-010
07030-006
07029-006
07033-006
29263-501
29263-504
29263-502
29063-503
20726-001
20725-001
20048-001
20111-001
29059-002
06513-026
29063-351
07029-108
07037-108
29285-503
25647-503
*
27
28
29
35
36
37
38
*
*
*
*
*
*
*
39
40
#
*
*
43
#
*
*
44
45
46
47
63
64
SCRAPER SHORT
U-BOLT PADDLE MNT.
CAP SCREW 1/2 -20 x 3-1/4
PADDLE SHAFT SQ
LOCK WASHER 1/2 GRADE 8
HEX NUT 1/2-20 GRADE 5
PADDLE KIT ..........................................1 ..... INCLUDES ITEMS W/
WIPER KIT ............................................1 ..... INCLUDES ITEMS W/
*
#
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 45
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MS20H/MS20E MIXER — AXLE ASSY.
AXLE ASSY.
PAGE 46 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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MS20H/MS20E MIXER — AXLE ASSY.
AXLE ASSY.
NO
20
27
PART NO
PART NAME
QTY.
2
2
2
2
10
3
1
REMARKS
507444
EM903012
EM903113
3065
8115
0183
530032
500617
EM941306
502246
3005
AXLE WASHER
BEARING CUP
BEARING CONE
SEAL
WHEEL NUT
COTTER PIN 5/32 x 1-1/2
AXLE
*
28
29
31
41
47
69
73
75
77
114
U-BOLT AXLE MNT.
2
HUB ASSY. ...............................................................2 ............INCLUDES ITEM W/
*
SLOTTED HEX NUT 1-20
WHEEL & TIRE ASSY. -12”
DUST COVER
2
2
2
3469
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 47
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MS20H/MS20E MIXER — FRAME ASSY.
FRAME ASSY.
PAGE 48 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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MS20H/MS20E MIXER — FRAME ASSY.
FRAME ASSY.
NO
1
2
PART NO
29016-351
3215
PART NAME
QTY.
1
1
REMARKS
MAIN FRAME UNIT
BOLT 1/2 x 13 x 3-1/2
NUT, NYLOCK 1/2-13
3
10176
1
4
4
4
4
27071-351
26149-351
HBC-1
BALL HITCH TOW POLE 1-1/2" ID ............ 1 ........... UP TO S/N SEC
PINTLE TOW POLE 1-1/2" ID .................... 1 ........... UP TO S/N SEC
BALL HITCH TOW POLE 2" ID ................. 1 ........... STARTING AT S/N SEE
PINTLE TOW POLE 2" ID ......................... 1 ........... STARTING AT S/N SEE
................................................................................... CONTACT UNIT SALES
HLC-1
5
12
14
41
48
49
50
55
56
57
58
60
61
63
64
69
20567-352
29277-351
20278-001
07028-057
06505-028
06505-024
07418-010
07029-010
07033-010
07030-010
22856-001
28986-001
22538-001
TBD
492589
500617
07030-012
25398-001
29242-001
07028-055
LOCK PIN UNIT
1
1
1
3
1
1
1
3
1
3
1
2
4
16
6
2
1
1
2
2
1
ENGINE MOUNT SHAFT
CLUTCH HANDLE GRIP
COTTER PIN 5/32 x 1-1/2
CAP SCREW 5/8 -11 x 3-1/2
CAP SCREW 5/8 -11 x 3
LOCK NUT 5/8 NYLOCK
LOCK WASHER 5/8
HEX NUT 5/8-11
FLAT WASHER 5/8
BELT SLIP LEVER
TRANSOM COVER
THD. ROLLING SCREW 1/4-20 x 1/2
LOCK WASHER 1/2 GRADE 8
HEX NUT 1/2-20 GRADE 5
U-BOLT AXLE MNT.
FLAT WASHER 3/4
SPRING- LOCKING PIN
PLATE
COTTER PIN 5/32 x 1
SAFETY CHAIN
CONNECTOR LINK ..................................... 2 ........... BEFORE JANUARY 2006
CONNECTOR LINK ..................................... 1 ........... AFTER JANUARY 2006
CLEVIS SAFETY HOOK ............................. 1 ........... AFTER JANUARY 2006
CHAIN AND LINK KIT ................................. 1 ........... INCLUDES ITEMS W/#
74
85
89
109
110#
111#
111#
111A# 516580
112 13363KIT
01004
01004
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 49
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MS20H/MS20E MIXER — ENGINE COVER ASSY.
CABINET ASSY.
PAGE 50 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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MS20H/MS20E MIXER — ENGINE COVER ASSY.
ENGINE COVER ASSY.
NO
16
22
28
29
PART NO
PART NAME
QTY.
1
REMARKS
29280-501
08602-006
07029-006
07033-006
06501-008
29173-001
29174-001
491010
ENGINE HOUSE ASSY.
FLAT WASHER 3/8
LOCK WASHER 3/8
HEX NUT 3/8-16
CAP SCREW 3/8 - 16 x 1
STOP SWITCH
12
50
50
12
1
1
2
62
111
112
115
118
RED KNOB
LATCH ASSY.
23342-523
WIRE ASSY. GROUND LEAD ...............1 ..... HONDA, B & S
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 51
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HONDA GX240K1HA2 ENGINE — AIR CLEANER ASSY.
AIR CLEANER ASSY.
PAGE 52 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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HONDA GX240K1HA2 ENGINE — AIR CLEANER ASSY.
AIR CLEANER ASSY.
NO.
1
2
3
*
5
PART NO.
PART NAME
QTY.
REMARKS
16271ZE2000
17210ZE2505
17218ZE2505
17231ZH9820
17232891000
17238ZE2310
17239ZE1000
17410ZE2020
90203ZA0800
90325044000
90009ZE2003
9405006000
GASKET, ELBOW ..................................... 1 ............. INCLUDES ITEM W/
*
ELEMENT, AIR CLEANER, DUAL
FILTER, OUTER
COVER, AIR CLEANER
GROMMET, AIR CLEANER
COLLAR, AIR CLEANER
COLLAR B, AIR CLEANER
ELBOW COMP., AIR CLEANER ............... 1 ............. INCLUDES ITEM W/
WINGNUT 6MM
WINGNUT, TOOL BOX SETTING
BOLT- WASHER 6 X 22
NUT, FLANGE 6MM
1
1
1
1
2
1
6
8
9
#
#
10
12
13
14
15
#
1
2
1
2
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 53
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HONDA GX240K1HA2 ENGINE — CAMSHAFT ASSY.
CAMSHAFT ASSY.
PAGE 54 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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HONDA GX240K1HA2 ENGINE — CAMSHAFT ASSY.
CAMSHAFT ASSY.
NO.
1
1
2
3
4
5
6
*
7
8
PART NO.
PART NAME
QTY.
REMARKS
14100ZE2W01
14100ZE2306
14410ZE2013
14431ZE2010
14441ZE2000
14451ZE1013
14568ZE1000
14711ZE2000
14721ZE2000
14751ZE2003
14771ZE2000
14773ZE2000
14781ZE2000
14791ZE2010
90012ZE0010
90206ZE1000
CAMSHAFT ASSY. ................................... 1 ............. INCLUDES ITEM W/
*
CAMSHAFT
ROD PUSH
ARM VALVE ROCKER
LIFTER VALVE
PIVOT ROCKER ARM
SPRING, WEIGHT RETURN
VALVE, IN.
1
2
2
2
2
1
1
1
2
1
1
1
1
2
2
VALVE, EX.
SPRING, VALVE
9
10
11
12
13
14
15
RETAINER, IN. VALVE SPRING
RETAINER, EX. VALVE SPRING
ROTATOR,VALVE
PLATE, PUSH ROD GUIDE
BOLT, PIVOT 8MM
NUT, PIVOT ADJ.
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 55
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HONDA GX240K1HA2 ENGINE — CARBURETOR ASSY.
CARBURETOR ASSY.
PAGE 56 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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HONDA GX240K1HA2 ENGINE — CARBURETOR ASSY.
CARBURETOR ASSY.
NO.
PART NO.
PART NAME
QTY. REMARKS
1 +
16010ZE2812
16011ZA0931
16013ZA0931
16016ZHW01
16024ZE1811
16028ZE0005
16028ZE2005
16100ZE2W71
16124ZE0005
16166ZE2W70
16172ZE3W10
16173001004
16211ZE2000
16220ZA0702
16221ZA0800
16223ZA0800
16610ZE1000
16953ZE1812
16954ZE1811
16956ZE1811
16957ZE1812
16967ZE0811
93500030060H
9430520122
GASKET SET
VALVE SET, FLOAT
FLOAT SET
1
1
1
1
1
1
1
*
2
3
*
*
5
SCREW SET
*
6 +
SCREW SET, DRAIN
SCREW SET B
CHOKE SET
CARBURETOR ASSY.................... 1 ..... INCLUDES ITEMS W/
SCREW, THROTTLE STOP
NOZZLE, MAIN
*
7 +
*
8
*
9
*
*
10
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
*
11
*
12
*
COLLAR, SET
O-RING
13
*
14
INSULATOR, CARB.
SPACER COMP., CARB.
GASKET, CARBURETOR
GASKET, INSULATOR
LEVER COMP., CHOKE, STD.
LEVER, VALVE
PLATE, LEVER SETTING
SPRING, VALVE LEVER
GASKET, VALVE
CUP, FUEL STRAINER
SCREW, PAN 3 X 6
PIN, SPRING 2 X 12
JET, MAIN #82, OPTIONAL
JET, MAIN #85, OPTIONAL
JET, MAIN #88
15
16
17
18
19
*
20
*
21
*
22
*
23
*
24
*
25
26
99101ZH70820
99101ZH70850
99101ZH70880
99204ZE20400
16015ZE8005
*
26
*
26
*
27
28
JET SET, PILOT #40
CHAMBER SET, FLOAT ................ 1 ..... INCLUDES ITEMS W/+
*
*
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 57
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HONDA GX240K1HA2 ENGINE — CONTROL ASSY.
CONTROL ASSY.
PAGE 58 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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HONDA GX240K1HA2 ENGINE — CONTROL ASSY.
CONTROL ASSY.
NO.
2
3
4
5
PART NO.
PART NAME
ARM, GOVERNOR
ROD, GOVERNOR
SPRING, GOVERNOR
SPRING,THROTTLE RETURN
CONTROL ASSEMBLY ................................ 1 .......... INCLUDES ITEMS W/
QTY.
REMARKS
16551ZE2000
16555ZE2000
16561ZE2000
16571ZE2000
16570ZE2W00
16571ZE2W00
16574ZE1000
16575ZE2W00
16578ZE1000
16581ZE2W00
16584883300
90013883000
90015ZE5010
90114SA0000
93500050280A
9405006000
1
1
1
1
8
*
10
LEVER, CONTROL
SPRING, LEVER
1
1
1
1
1
1
2
1
1
1
1
*
11
*
12
*
WASHER, CONTROL LEVER
SPACER, CONTROL LEVER
BASE, CONTROL
SPRING, CONTROL ADJUSTING
BOLT, FLANGE (6 X 12) (CT200)
BOLT, GOVERNOR ARM
NUT, SELF- LOCK (6MM)
SCREW, PAN (5 X 28)
NUT, FLANGE
14
*
15
*
16
*
19
20
21
*
24
*
27
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 59
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HONDA GX240K1HA2 ENGINE — CRANKCASE COVER ASSY.
CRANKCASE COVER ASSY.
PAGE 60 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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HONDA GX240K1HA2 ENGINE — CRANKCASE COVER ASSY.
CRANKCASE COVER ASSY.
NO.
2
PART NO.
11400ZE2621
PART NAME
QTY.
REMARKS
COVER ASSY., CRANKCASE ..................... 1........... INCLUDES ITEMS W/
(H-TYPE) (BALANCER)
*
3
4
5
8
9
11381ZE2801
15600ZG4003
15600735003
15625ZE1003
15625ZE1003
16510ZE2811
GASKET, CASE COVER
1
CAP ASSY., OIL FILLER ............................. 1........... INCLUDES ITEMS W/
CAP ASSY., OIL FILLER ............................. 1........... INCLUDES ITEMS W/
#
%
%
#
GASKET, OIL FILLER CAP
GASKET, OIL FILLER CAP
1
1
10
GOVERNOR ASSEMBLY (BALANCER) ...... 1........... INCLUDES ITEMS W/+
11 + 16511ZE2000
WEIGHT, GOVERNOR
2
1
2
1
1
1
2
1
7
1
1
1
1
*
12 + 16512ZE2811
HOLDER, GOVERNORWEIGHT
PIN, GOVERNOR WEIGHT
SLIDER, GOVERNOR
WASHER (6 X 16)
CLIP, GOVERNOR HOLDER
PIN, DOWEL (8 X 12)
WASHER, PLAIN (6MM)
BOLT, FLANGE (8 X 35)
BEARING, RADIAL BALL (6202)
BEARING, RADIAL BALL (6204)
BEARING, RADIAL BALL (6206)
BEARING, RADIAL BALL (6302)
*
13 + 16513ZE2000
*
14
15
16
17
18
19
20
21
22
23
16531ZE2000
90473147000
90602ZE1000
90701HC4000
9410106800
957010803500
961006202000
961006204000
961006206000
961006302000
*
*
*
*
*
*
*
*
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 61
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HONDA GX240K1HA2ENGINE — CRANKSHAFT ASSY.
CRANKSHAFT ASSY.
PAGE 62 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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HONDA GX240K1HA2ENGINE — CRANKSHAFT ASSY.
CRANKSHAFT ASSY.
NO.
3
8
PART NO.
PART NAME
QTY.
REMARKS
13320ZE2611
13351ZE2010
961006206000
CRANKSHAFT (L- TYPE)
WEIGHT BALANCER
BEARING, RADIAL BALL (6206)
1
1
1
INCLUDES ITEM W/
*
12
*
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 63
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HONDA GX240K1HA2 ENGINE — CYLINDER BARREL ASSY.
CYLINDER BARREL ASSY.
PAGE 64 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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HONDA GX240K1HA2 ENGINE — CYLINDER BARREL ASSY.
CYLINDER BARREL ASSY.
NO.
1
2
3
6
7
8
*
9
10
11
12
13
PART NO.
PART NAME
QTY.
REMARKS
12000ZE2834
15510ZE2043
16541ZE2010
90131896650
90446KE1000
91201890003
91353671003
9405010000
9410912000
9425110000
957010601200
961006202000
90013883000
34150ZH7003
CYLINDER ASSY., BALANCER + OIL ALERT ...... 1 .......... INCLUDES ITEMS W/
*
SWITCH ASSY., OIL LEVEL
SHAFT, GOVERNOR ARM
BOLT, DRAIN PLUG
WASHER 8.2 X17X0.8
OIL SEAL 30X46X8
O-RING 14MM ARAI
NUT FLANGE 10MM
WASHER, DRAIN PLUG 12MM
PIN, LOCK 10MM
BOLT, FLANGE 6X12
BEARING, RADIAL BALL 6202
BOLT, FLANGE 6X12 CT200
ALERT UNIT, OIL
1
1
2
1
1
1
1
2
1
2
1
1
1
14
15
16
*
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 65
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HONDA GX240K1HA2 ENGINE — CYLINDER HEAD ASSY.
CYLINDER HEAD ASSY.
PAGE 66 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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HONDA GX240K1HA2 ENGINE — CYLINDER HEAD ASSY.
CYLINDER HEAD ASSY.
NO.
PART NO.
PART NAME
QTY.
REMARKS
1
12200ZH9000
12204ZE2306
12205ZE2305
12216ZE2300
12251ZE2800
12310ZE2020
12391ZE2020
14775ZE2010
90014ZE2000
90042ZE2000
90047ZE2000
90441ZE2010
9430112200
CYLINDER HEAD COMP. ....................................... 1 .......... INCLUDES ITEMS W/
*
2
*
3
*
4
*
5
6
7
GUIDE, VALVE, OS, OPTIONAL
GUIDE, EX. VALVE, OS, OPTIONAL
CLIP, VALVE GUIDE
GASKET, CYLINDER HEAD
COVER COMP., HEAD
GASKET, CYLINDER HEAD COVER
SEAT, VALVE SPRING
BOLT, HEAD COVER
BOLT, STUD 8X123
BOLT, STUD 8X47
WASHER COMP., HEAD COVER
PIN A, DOWEL 12X20
BULK HOSE, VACUUM 11X1000, 11X100
BOLT, FLANGE 10X80
1
1
1
1
1
1
1
1
2
2
1
2
1
4
1
1
8
10
11
12
13
14
15
16
17
17
950051100130M
957011008000
9807956846
SPARK PLUG, BPR6ES, NGK
SPARK PLUG, W20EPR-U, DENSO
9807956855
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 67
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HONDA GX240K1HA2 ENGINE — FAN COVER ASSY.
FAN COVER ASSY.
PAGE 68 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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HONDA GX240K1HA2 ENGINE — FAN COVER ASSY.
FAN COVER ASSY.
NO.
1
2
3
4
5
7
9
PART NO.
PART NAME
QTY.
REMARKS
16731ZE2003
19610ZE2010ZC
19631ZE2D00
32197ZH8003
36100ZE1015
90013883000
90684ZA0601
CLIP, TUBE
1
1
1
1
1
6
1
COVER COMP., FAN *NH1* BLACK
SHROUD
SUB-HARNESS
SWITCH ASSY., ENGINE STOP
BOLT, FLANGE 6X12, CT200
CLIP, WIRE HARNESS
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 69
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HONDA GX240K1HA2 ENGINE — FLYWHEEL ASSY.
FLYWHEEL ASSY.
PAGE 70 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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HONDA GX240K1HA2 ENGINE — FLYWHEEL ASSY.
FLYWHEEL ASSY.
NO.
1
2
4
7
PART NO.
PART NAME
QTY.
REMARKS
19511ZE2000
28450ZE2W11
31100ZE2010
90201ZE3V00
90741ZE2000
FAN, COOLING
1
1
1
1
1
PULLEY COMP., STARTER, SCREEN GRID
FLYWHEEL COMP.
NUT, SPECIAL 16MM
8
KEY, SPECIAL WOODRUFF 25X18
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 71
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HONDA GX240K1HA2 ENGINE — MUFFLER ASSY.
MUFFLER ASSY.
PAGE 72 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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HONDA GX240K1HA2 ENGINE — MUFFLER ASSY.
MUFFLER ASSY.
NO.
1
2
3
4
5
6
7
8
PART NO.
PART NAME
QTY.
1
1
1
1
1
1
1
1
1
1
6
3
1
5
REMARKS
18310ZE2W00
18320ZE2W01
18323ZE2W00
18330ZE2W00
18331ZE2810
18333ZE3800
18355ZE2010
18381ZE2W10
18381ZE2800
90013883000
90050ZE1000
90055ZE1000
90050ZE1000
9405008000
MUFFLER
PROTECTOR, MUFFLER
PROTECTOR, EX. PIPE
PIPE, EX.
CAP, MUFFLER
GASKET, EX. PIPE
ARRESTER, SPARK
GASKET, MUFFLER (ARRESTER)
GASKET, MUFFLER
BOLT, FLANGE (6 X 12) (CT200)
SCREW, TAPPING (5 X 8)
SCREW, TAPPING (4 X 6)
SCREW, TAPPING (5 X 8) (OPTIONAL)
NUT, FLANGE (8MM)
9
10
11
12
13
14
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 73
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HONDA GX240K1HA2 ENGINE — FUELTANK ASSY.
FUEL TANK ASSY.
PAGE 74 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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HONDA GX240K1HA2 ENGINE — FUELTANK ASSY.
FUEL TANK ASSY.
NO.
1
2
3
5
6
*
8
11
12
13
14
15
PART NO.
PART NAME
RUBBER SUPPORTER 107MM
JOINT, FUEL TANK
TANK COMP., FUEL *NH1*, BLACK
CAP COMP., FUEL FILLER .................................... 1 .......... INCLUDES ITEMS W/
GASKET, FUEL FILLER CAP
FILTER, FUEL
O-RING 14MM, ARAI
NUT, FLANGE 8MM
BULK HOSE, FUEL 4.5X3000, 4.5X222
CLIP, TUBE, B8
BOLT, FLANGE 8X25
QTY.
REMARKS
16854ZH8000
16955ZE1000
17510ZE2010ZD
17620ZH7023
17631ZH7003
17672ZE2W01
91353671003
9405008000
1
1
1
*
1
1
1
2
1
2
2
950014500360M
9500202080
957010802500
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 75
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HONDA GX240K1HA2ENGINE — IGNITION ASSY.
IGNITION COIL ASSY.
PAGE 76 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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HONDA GX240K1HA2ENGINE — IGNITION ASSY.
IGNITION COIL ASSY.
NO.
1
2
6
8
PART NO.
PART NAME
QTY.
REMARKS
30500ZE2023
30700ZE1013
31512ZE2000
36101ZE1010
90015883000
COIL ASSY., IGNITION
CAP ASSY., NOISE SUPPRESSOR
GROMMET, WIRE
1
1
1
1
2
WIRE, STOP SWITCH 370MM
BOLT, FLANGE 6X28
11
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 77
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HONDA GX240K1HA2 ENGINE — PISTON ASSY.
PISTON ASSY.
PAGE 78 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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HONDA GX240K1HA2 ENGINE — PISTON ASSY.
PISTON ASSY.
NO.
1
1
1
1
2
2
2
2
3
4
4
5
*
6
PART NO.
PART NAME
QTY.
REMARKS
13010ZE2013
13011ZE2013
13012ZE2013
13013ZE2013
13101ZE2W00
13102ZE2W00
13103ZE2W00
13104ZE2W00
13111ZE2000
13200ZE2000
13200ZE2305
90001ZE8000
90551ZE1000
RING SET, PISTON, STD.
RING SET, PISTON, OS 0.25, OPTIONAL
RING SET, PISTON, OS 0.50, OPTIONAL
RING SET, PISTON, 0.75, OPTIONAL
PISTON, STANDARD
1
1
1
1
1
1
1
1
1
PISTON, OS 0.25, OPTIONAL
PISTON, OS 0.50, OPTIONAL
PISTON, 0.75, OPTIONAL
PIN, PISTON
ROD ASSY., CONNECTING STANDARD ................ 1 .......... INCLUDES ITEMS W/
ROD ASSY., CONNECTING, US 0.25, OPT.
BOLT, CONNECTING ROD
*
1
2
2
CLIP, PISTON PIN 18MM
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 79
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HONDA GX240K1HA2 ENGINE — RECOIL STARTER ASSY.
RECOIL STARTER ASSY.
PAGE 80 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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HONDA GX240K1HA2 ENGINE — RECOIL STARTER ASSY.
RECOIL STARTER ASSY.
NO.
PART NO.
PART NAME
QTY.
REMARKS
1
28400ZE2W01ZB
28410ZE2W01ZB
28421ZE2W01
28422ZE2W01
28441ZE2W01
28442ZE2W01
28443ZE2W01
28444ZE2W01
28461ZE2W02
28462ZE2W11
90004ZE2W01
90008ZE2003
STARTER ASSY., RECOIL *NH1*, BLK ............... 1 ......... INCLUDES ITEMS W/
*
2
3
CASE COMP., RECOIL STARTER *NH1*, BLK
PULLEY, RECOIL STARTER
RATCHET, STARTER
SPRING, FRICTION
SPRING, STARTER RETURN
SPRING RATCHET
RETAINER, SPRING
GRIP, STARTER
ROPE, RECOIL STARTER
SCREW, CENTER
BOLT, FLANGE 6X10
1
1
2
1
1
2
1
1
1
1
3
*
*
4
5
*
*
6
7
*
*
8
*
10
*
11
*
13
*
14
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 81
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HONDA GX240K1HA2 ENGINE — GEAR REDUCTION ASSY.
GEAR REDUCTION ASSY.
PAGE 82 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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HONDA GX240K1HA2 ENGINE — GEAR REDUCTION ASSY.
GEAR REDUCTION ASSY.
NO.
1
2
3
4
5
6
7
8
PART NO.
PART NAME
QTY.
REMARKS
11500ZE2620
11521ZE2800
22103ZE2620
23220ZE2621
23710ZE2621
90401ZE2620
90402ZE2620
90473842000
90745ZE2600
91201890003
9430108140
COVER ASSY, REDUCTION CASE ............. 1 .......... INCLUDES ITEMS W/
GASKET, CHAIN CASE COVER
GEAR, PRIMARY DRIVE (17T)
COUNTERSHAFT
SHAFT, P.T.O. (H- TYPE)
SHIM A (OPTIONAL)
SHIM B (OPTIONAL)
WASHER (8MM)
1
1
1
1
AR
AR
1
1
1
2
1
6
1
9
KEY (6.3 X 6.3 X 43)
10
11
12
13
14
15
OIL SEAL (30 X 46 X 8)
PIN A, DOWEL ( 8 X 14)
BOLT, FLANGE (8 X 25)
BOLT, FLANGE (8 X 40)
BEARING, RADIAL BALL (6206)
BEARING, RADIAL BALL (6302)
957010802500
957010804000
961006206000
961006302000
1
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 83
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HONDA GX240K1HA2 ENGINE — LABEL ASSY.
LABEL ASSY.
PAGE 84 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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HONDA GX240K1HA2 ENGINE — LABEL ASSY.
LABELS ASSY.
NO.
1
2
3
5
15
16
PART NO.
PART NAME
QTY.
REMARKS
87521ZE2W01
87522ZE1810
87522ZH9000
87528ZE2810
87586ZH7W00
87532ZH8810
EMBLEM, INTERNAL
MARK, CAUTION, EXTERNAL
LABEL, CAUTION
1
1
1
1
1
1
MARK, CHOKE, EXTERNAL
LABEL, FUEL CAUTION
MARK, OIL ALERT
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 85
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Effective: July 15, 2003
TERMS AND CONDITIONS OF SALE — PARTS
Terms and Conditions of Sale
STOW Construction Equipment
PAYMENT TERMS
DROP SHIPMENTS
The sender will be notified of any material
received that does not meet the above
provisions. Such material will be held for 30
days from notification pending instructions. If a
reply is not received within 30 days, the material
will be returned to the sender at his expense
with no credit issued.
Terms of payment for unit sales are 2% 15
days net 30 days from date of invoice unless
otherwise specifically stated on our invoice.
Parts invoices have terms of net 10 days.
Minimum parts billing is $15.00 net.
Applicable discounts will be computed on
merchandise value only. Late charges will be
assessed at prevailing rates. Cash discounts
cannot be taken on current billings if any
previously billed amounts are past due.
STOW reserves the right to refuse Drop
Shipments outside the normal service area of
the purchasing dealer.
FIELDWAREHOUSES
Field Warehouses are currently located in
California, Georgia, Idaho, Iowa, and New
Jersey
PRICING, REBATES AND
SPECIFICATIONS
Every effort will be made to provide adequate
notice of changes; however, prices and
equipment specifications are subject to change
without notice.
SPECIAL EXPEDITING SERVICE
The higher of a $35.00 surcharge or actual
costs will be added to the invoice for special
handling, including bus shipments, or in cases
where STOW personnel must personally deliver
the equipment or parts to the carrier.
FREIGHT POLICY
Freight policy is established to offer customers
every advantage possible. Due to bulk freight
ratings on some equipment and other shipping
considerations, freight policies differ by
equipment type. Actual back freight may be
charged for shipments originating from other
than specified FOB warehouses. See Freight
Policy for details.
All STOW domestic sales are FOB nearest
available designated MQ/STOW warehouse.
Export orders are ex-works factory located in
Carson, CA or Boise, ID.
Price changes are effective on a specific date
and all orders received on or after that date will
be billed at the revised price.
RETURNED GOODS POLICY
Return shipments may be accepted and credit
allowed, subject to the following provisions.
Rebates for price reductions and added
charges for price increases will not be made
for stock in dealer inventory at the time of a
price change.
1. A Returned Material Authorization (RMA)
must be approved by STOW prior to
shipment. Approvals for returned goods
must be with just cause and are at the
sole discretion of STOW. A copy of the
Authorization must accompany the shipment
to the designated Warehouse.
STOW 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.
Additions to orders already shipped cannot be
accepted for freight minimums.
2. Parts being returned must be listed as
currently supplied on the current parts list.
LIMITATION OF SELLER’S LIABILITY
Should STOW elect to make partial shipments
of an order originally complying with the “freight
allowed” requirements, transportation charges
will be absorbed by STOW on any subsequent
shipment applying to that order.
STOW 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 STOW be liable for loss of profit
or good will or for any other special, consequential
or incidental damages.
3. Parts must be in new and resalable condition
in the original package, with part numbers
clearly marked.
4. Units and accessories must be current
models in the latest price list and in new and
resalable condition.
All other orders will be shipped collect or prepaid
with charges added to the invoice. STOW’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.
LIMITATION OF WARRANTIES
5. Special order items are not returnable for
credit.
There are no warranties, express or implied,
made by STOW. hereunder on Products
manufactured or distributed by it except the
warranty against defects in material and
6. Credit on returned parts and units will be
issued at actual dealer net price at time of
purchase less 15% restocking charge.
Parts: FOB Carson, California or Boise,
Idaho. See Freight Policy for details and
additional discounts.
7. All returned shipments are to be made to
the STOW designated receiving point,
freight prepaid at the sender’s expense.
STOW CONSTRUCTION EQUIPMENT
POST OFFICE BOX 6254
CARSON, CALIFORNIA 90749
310-661-4242 • 877-BUY-STOW
FAX:310-604-9237
E-MAIL: [email protected]
Atlanta • Boise • Newark • Quebec, Canada
Manchester, UK • Rio de Janeiro, BR • Puebla, MX
PAGE 86 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)
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MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 87
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PARTS AND OPERATION MANUAL
HERE'S HOW TO GET HELP
PLEASE HAVE THE MODEL AND SERIAL NUMBER
ON-HAND WHEN CALLING
PARTS DEPARTMENT
800-427-1244 or 310-537-3700
FAX: 800-672-7877 or 310-637-3284
^6668
SERVICE DEPARTMENT/TECHNICAL ASSISTANCE
800-478-1244 or 310-537-3700
FAX: 310- 537-4259
WARRANTY DEPARTMENT
888-661-4279, or 310-661-4279
FAX: 310- 537-1173
MAIN
800-421-1244 or 310-537-3700
FAX: 310-537-3927
STOWCONSTRUCTIONEQUIPMENT
A DIVISION OF MULTIQUIP INC.
POST OFFICE BOX 6254
DIVISION OF MULTIQUIP INC.
PARTS DEPARTMENT:
800-427-1244
FAX: 800-672-7877
A
CARSON, CALIFORNIA 90749
SERVICE DEPARTMENT/TECHNICAL ASSISTANCE:
800-478-1244
FAX:310-631-5032
310-537-3700 • 888-252-STOW [888-252-7869]
FAX:310-537-1986 • FAX:800-556-1986
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