MBW MPB21 Owner's manual

MBW
Brand
MBW
Model
MPB21
Type
Owner's manual

This manual is also suitable for

OPERATOR’S SAFETY
AND SERVICE MANUAL
MBW, Inc.
250 Hartford Rd • PO Box 440
Slinger, WI 53086-0440
Phone: (262) 644-5234
Fax: (262) 644-5169
Email: mbw@mbw.com
Website: www.mbw.com
MBW Europe Ltd.
Units 2&3 Cochrane Street
Bolton BL3 6BN
England, UK
Phone: + 44 (0) 1204 387784
Fax: + 44 (0) 1204 387797
E-mail: saleseurope@mbw.com
Website:mbweurope.com
L22020 / 01.20.C
©MBW, Inc. 2004
Printed in the USA
MPB-16
MPB-21
This manual covers the following serial numbers
and higher for each model listed:
MPB16....................................1610001
MPB21....................................2140001
CONCRETE POWER BUGGYS
TABLE OF CONTENTS
SAFETY INFORMATION . . . . . . . . . . . . . . . . . 1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Safety Decals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . 3
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Before Starting and Operating . . . . . . . . . . . . . . . . . . 4
Maximum Grade for Travel . . . . . . . . . . . . . . . . . . . . . 4
Starting Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Stopping Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Lifting and Transport. . . . . . . . . . . . . . . . . . . . . . . . . . 6
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . 7
Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . . . . 7
Fluid Levels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Engine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Cleaning Buggy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Engine Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Chassis Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Brake Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Torque Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Service Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Parts Replacement Cycles and Tolerances . . . . . . . . 9
REPLACEMENT PARTS. . . . . . . . . . . . . . . . .10
ENGINE AND FRAME . . . . . . . . . . . . . . . . . . . . . . . 11
PUMP AND COUPLING. . . . . . . . . . . . . . . . . . . . . . 12
DIRECTION CONTROL VALVE . . . . . . . . . . . . . . . 13
HYDRAULIC OIL RESERVOIR . . . . . . . . . . . . . . . . 14
DUMP VALVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
DUMP CYLINDER . . . . . . . . . . . . . . . . . . . . . . . . . . 16
HYDRAULICS (DRIVE MOTOR) . . . . . . . . . . . . . . . 17
DRIVE MOTOR ASSEMBLY . . . . . . . . . . . . . . . . . . 18
SPEED CONTROL ASSEMBLY . . . . . . . . . . . . . . . 19
STEERING SHAFT ASSEMBLY . . . . . . . . . . . . . . . 20
REAR WHEELS (STEERING) . . . . . . . . . . . . . . . . . 21
BRAKE & RIDING STAND . . . . . . . . . . . . . . . . . . . . 22
BUCKET ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . 23
ENGINE COVER ASSEMBLY . . . . . . . . . . . . . . . . . 24
LIFTING EYE ASSEMBLY . . . . . . . . . . . . . . . . . . . . 25
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . .26
CALIFORNIA PROPOSITION 65 WARNING
Engine exhaust and some of its constituents and dust
produced during the use of this product contain chemi-
cals known in the state of California to cause cancer,
birth defects, and other reproductive harm.
For more information go to www.P65Warnings.ca.gov
WARNING
- 1 -
SAFETY INFORMATION
Introduction
This Safety Alert Symbol is used to call attention
to items or operations which may be dangerous
to those operating or working with this equipment.
The symbol can be found throughout this manual
and on the unit. Please read these warnings and cautions,
along with all decals, carefully before attempting to operate
the unit. Make sure every individual who operates or works
with this equipment is familiar with all safety precautions.
WARNING
GENERAL WARNING. Indicates information
important to the proper operation of the equipment.
Failure to observe may result in damage to the
equipment and/or severe bodily injury or death.
CAUTION
GENERAL CAUTION. Indicates information
important to the proper operation of the equipment.
Failure to observe may result in damage to the
equipment.
Safety Precautions
LETHAL EXHAUST GAS: An internal
combustion engine discharges carbon
monoxide, a poisonous, odorless, invisible
gas. Death or serious illness may result if
inhaled. Operate only in a properly ventilated
area. NEVER OPERATE IN A CONFINED
AREA!
DANGEROUS FUELS: Use extreme caution
when storing, handling and using fuels as they
are highly volatile and explosive in vapor
state. Do not add fuel while engine is running.
Stop and cool the engine before adding fuel.
DO NOT SMOKE!
SAFETY GUARDS: It is the owner's
responsibility to ensure that all guards and
shields are in place and in working order.
IGNITION SYSTEMS: Breakerless, magneto,
and battery ignition systems can cause severe
electrical shocks. Avoid contacting these units
or their wiring.
SAFE DRESS: Do not wear loose clothing,
rings, wristwatches, etc. near machinery.
NOISE PROTECTION: Wear OSHA specified
hearing protection devices.
EYE PROTECTION: Wear OSHA specified
eye shields, safety glasses, and sweat bands.
FOOT PROTECTION: Wear OSHA specified
steel-tipped safety shoes.
HEAD PROTECTION: Wear OSHA specified
safety helmets.
OPERATOR: Keep children and bystanders
off and away from the equipment.
DUST PROTECTION: Machining, crushing or
handling of stone, concrete, masonry, metal
and other materials may generate dust, mist
and fumes containing chemicals such as silica
known to cause serious or fatal injury or illness such as
respiratory disease, silicosis, cancer, birth defects, or other
reproductive harm.
• Control dust, mist and fumes at the source where possible.
Water should be used to control dust whenever feasible.
• Use good work practices and follow the recommendations
of the manufacture, OSHA/NIOSH and other occupational
trade associations.
• When hazards cannot be eliminated the operator and any
bystanders should always wear a OSHA specified respirator
for materials being handled.
REFERENCES: For details on safety rules and regulations
in the United States, contact your local Occupational Safety
and Health Administration (OSHA) office. Equipment
operated in other countries must be operated and serviced
in accordance and compliance with any and all safety
requirements of that country. The publication of these safety
precautions is done for your information. MBW does not by
the publication of these precautions, imply or in any way
represent that these are the sum of all dangers present near
MBW equipment. If you are operating MBW equipment, it is
your responsibility to insure that such operation is in full
accordance with all applicable safety requirements and
codes. All requirements of the United States Federal
Occupational Safety and Health Administration Act must be
met when operated in areas that are under the jurisdiction
of that United States Department.
Safety Decals
Carefully read and follow all safety decals. Keep them in
good condition. If decals become damaged, replace as
required. If repainting the unit, replace all decals. Decals are
available from authorized MBW distributors. Order the decal
set listed on the following page.
- 2 -
Safety Decals (Decal Set #22031)
22022 - MPB16 BOTH SIDES
22023 - MPB21 BOTH SIDES
21038 BOTH SIDES
MBW.COM
22027 BOTH SIDES
22025
22025
22028 BOTH SIDES
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22024
19791
WARNING
OPERATION OF THIS EQUIPMENT MAY
CREATE SPARKS THAT CAN START FIRES
AROUND DRY VEGETATION. A SPARK
ARRESTER MAY BE REQUIRED. THE
OPERATOR SHOULD CONTACT LOCAL FIRE
AGENCIES FOR LAWS OR REGULATIONS
RELATING TO FIRE PREVENTION
19791
WARNING
Operating, servicing and maintaining this equipment
can expose you to chemicals, including engine
exhaust, phthalates and lead, which are known to the
state of California to cause cancer and birth defects or
other reproductive harm. Avoid breathing engine
exhaust. Do not operate equipment in confined areas.
For more information go to
www.P65Warnings.ca.gov
21820
18031
WARNING
ROTATING
BLADES CAN
CRUSH AND CUT
KEEP HANDS AND
FEET CLEAR!
18031
UNLEADED
GASOLINE
17892
17892 INSIDE
COVER
PB852610
PB852610
PB853030
PB853045
PB853440
21820 INSIDE CVER
STOP
20019
22021 - MPB16
22030- MPB30
- 3 -
SPECIFICATIONS
Specifications subject to change without notice
MPB-16 MPB-21
Operating Weight (Empty) - lbs (kg) 1,200 (544) 1,375 (624)
Loaded - Weight Capacity (Dual Wheels) - lbs (kg) 2,500 (1134) 3,200 (1452)
Bucket Capacity - cu. ft. (cu. m) 16 (.45) 21 (.59)
Discharge Height - in. (cm) 5 (12.7) 6 (15.3)
Wheel Base - in. (cm) 44 (112)
Height - in. (cm) 53 (134.6)
Width Dual Wheels - in. (cm) 43.25 (109.8)
Drive Hydrostatic
Brake (Drive Wheels) Dynamic Hydrostatic
Parking Brake (Drive Wheels) Mechanical
Length - in. (cm) 103 (261.6) 101.5 (257.8)
Engine 13 hp Honda
(Recoil/Optional Electric Start)
18 hp Briggs & Stratton Vanguard
(Electric Start)
Travel Speed - mph (km/hr) 7.25 (11.66)
Maximum Permissible Grade 10% (6º) Front to Back and Side to Side
Ground Clearance - in. (cm) 6 (15.3)
Turn Radius - in. (cm) 73.5 (187)
Tires - Drive - in. 5.70 x 8 x 19
Tires - Steering - in. 4.80 x 8
- 4 -
OPERATION
Introduction
MBW equipment is intended for use in very severe
applications. They are powered by four cycle engines and
are available in different sizes and a selection of engines.
This parts manual contains only standard parts. Variations
of these parts as well as other special parts are not included.
Contact your local MBW distributor for assistance in
identifying parts not included in this manual.
Before Starting and Operating
• REMEMBER! It is the owner’s responsibility to
communicate information on the safe use and proper
operation of this unit to the operators.
• Review ALL of the Safety Precautions listed on page 1 of
this manual.
• Inspect machine to make sure all guards and covers are
in place and all hardware is tight. All safety decals are in
place and legible.
• Familiarize yourself with the operation of the machine
and confirm that all controls function properly. See the
Operating section of this manual for proper control
functions.
• Know how to STOP the machine in case of an
emergency.
• Make sure hands, feet, and clothing are at a safe
distance from any moving parts.
• HYDRAULIC OIL LEVEL - Check the hydraulic oil. The
oil level should be up to the bottom of the screen inside
of fill the tube.
WARNING
HIGH PRESSURE, SKIN INJECTION HAZARD
• HYDRAULIC LEAKS - Do not use hands or any portion
of the body to check for hydraulic oil leaks. Hydraulic oil
may be under high pressure and could get injected under
the skin causing infections or injury. Use cardboard or
look for oily surfaces to check for leaks.
• ENGINE OIL LEVEL - Check the oil level in the engine.
For more information see “Lubrication” under the
respective engine’s “Owner’s Manual” or the
Maintenance section of this manual.
• AIR CLEANER - Check to ensure element is in good
condition and properly installed.
• FUEL SUPPLY - The engines on MBW equipment
require an automotive grade of clean, fresh, unleaded
gasoline.
• Check intended travel path to ensure it does not exceed
the maximum permissible grade of 10%. Also check for
loose material, soft spots or any conditions that may
cause the buggy to lose control or tip over.
Maximum Grade for Travel
1. The maximum allowable grade for travel is 10% in
both front to back and side to side.
2. To calculate grade divide the vertical rise by the
horizontal run, then multiply by 100. For example if
you have a rise of 2 feet over a run of 21 feet the
grade calculation is: (2 ÷ 21) X 100 = 9.5 Grade. This
grade is safe to travel because 9.5 is less than 10.
Starting Engine
1. Check parking brake. If not set, engage brake.
2. Check speed control on right handle. Speed control
must move freely and return to the open position
when released. If speed control does not move freely
do not start engine until it is repaired.
3. Open fuel valve.
4. Set throttle to idle.
5. Choke engine if necessary (you may not need to
choke a warm engine).
6. Turn engine switch to “ON”.
7. Pull starter rope repeatedly until engine starts. For
electric start models rotate key to the start position
until engine starts then release the key.
8. Move choke lever to open position.
9. Allow engine to warm up for one or two minutes.
Operating
1. Steering: The handle bar is attached to the rear
wheels of the unit. Rotating the handle bars clockwise
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- 5 -
steers the unit to the left. Rotating the handle bars
counterclockwise steers the unit to the right.
2. Speed Control: The travel speed control lever is
located on the right handle bar. Squeeze the lever to
increase the travel speed of the buggy. Release the
lever and the machine will stop.
WARNING
Avoid sudden starts, stops and direction
changes.
3. Travel Direction Control: The direction control has
(3) positions. Push the lever forward to travel forward.
The center position is neutral. Pull the lever back to
travel in reverse.
4. Hand Parking Brake: The hand brake lever
activates the parking brake on the front tires. Move
the lever to the horizontal position to engage the
brake. Move the lever to the vertical position to
disengage the brake.
5. Foot Parking Brake: Push the foot pedal down to
activate the foot brake. Release the foot pedal to
deactivate the brake.
6. Hand Dump Control: Push the dump handle forward
to activate the hydraulic bucket dump. Pull back on
handle to return the bucket to the travel position.
7. Foot Dump Control: Rock the foot dump pedal
forward to dump the bucket. Rock the foot pedal back
to return the bucket to the travel position.
8. Mounting & Dismounting Buggy: Be sure the
buggy is completely stopped and in the neutral
position with the parking brake set before mounting or
dismounting the machine.
9. Always use three points of contact when mounting
and dismounting the machine. Three points of
contact means that three of four arms and legs are in
contact with the machine when mounting or
dismounting.
10. Never use control levers or foot controls as handles
or steps when mounting or dismounting.
11. Clean excess dirt & debris off of shoes before
mounting the buggy. Keep riding platform clean and
free of debris to assure secure footing when
operating the machine.
12. When traveling with a loaded bucket on a slope the
bucket must be on the uphill end and the operator on
the downhill end of the machine.
WARNING
DO NOT travel on a slope with the bucket facing
downhill.
13. When traveling with an unloaded bucket on a slope
the bucket must be on the downhill end and the
operator on the uphill end of the machine.
14. Avoid making sudden starts, stops or direction
changes.
15. DO NOT allow others to ride on the machine.
16. DO NOT approach personnel standing in front of a
fixed object.
17. Keep all personnel clear of machine while travelling.
18. Keep both hands on the handle bar during travel.
19. When traveling on uneven or rough terrain raise and
secure the riding stand and walk behind the machine.
Do not exceed Creep Speed of 1/4 of maximum
speed approximately 1.4 mph. ALWAYS use good
judgment when determining a safe travel speed.
20. Ensure the buggy is completely stopped and the
parking brake is set before loading or unloading the
bucket.
21. All other personnel to stand clear of the buggy when
loading or unloading.
WARNING
Do not dump buggy when facing downhill.
22. Know the load capacity of your machine. DO NOT
exceed the capacity of the machine or the intended
travel path of the machine. If there is any questions of
overloading reduce the load and take more smaller
loads.
WARNING
Stay clear of dump mechanism between bucket
and chassis.
23. If the buggy operator is unable to see the load
placement point always use a signal person.
24. DO NOT dump buggy toward other personnel.
Stopping Engine
1. Come to a full stop and move throttle to idle position.
2. Set the parking brake.
3. Let engine idle for one or two minutes.
4. Turn switch on engine to “STOP” position.
5. Cycle the hydraulic controls to relieve residual
pressure.
6. Turn off fuel valve and remove ignition key on electric
start models.
7. If parking on an incline block wheels.
8. If the machine will be exposed to freezing conditions
place the bucket in the dump position.
- 6 -
WARNING
Always stop the engine before:
Adding fuel, leaving the equipment unattended
for any amount of time or before making any
repairs or adjustments to the machine.
Lifting and Transport
1. Make sure the bucket is completely lowered.
2. When loading use only properly rated ramps to avoid
damaging the machine or loading equipment.
3. Set parking brake and make sure the fuel is turned off
and key is removed for electric start models.
4. Single Point Lifting: When lifting machine with the
single point lift ring the bucket must be in the dumped
position and both lift ring support arms must be
attached with retaining rings as shown.
5. Fork Lift Loading: The buggy can be loaded from
either side using the fork lift pockets provided
between the front and back wheels.
6. Secure machine with properly sized tie-downs at
specified attachment points.
7. When transporting buggy, know overall height to
avoid contacting overhead obstructions.
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- 7 -
MAINTENANCE
WARNING
Always exercise the stopping procedure before
servicing or lubricating the unit.
After servicing the unit, replace and fasten all
guards, shields, and covers to their original
positions before resuming operation.
CAUTION
Always verify fluid levels and check for leaks after
changing fluids.
Do not drain oil onto ground, into open streams,
or down sewage drains.
Maintenance Schedule
1. Check all hardware after the first 5 hours of use, then follow the maintenance schedule.
2. Change hydraulic oil filter after the first 10 hours of use, then follow the maintenance schedule.
Fluid Levels
Engine Maintenance
Refer to the engine Owner’s Manual for maintenance
intervals and procedures.
Cleaning Buggy
Remove any build up of concrete, dirt and debris on
operator’s platform and chassis.
Engine Speed
1. Engine speed is set to 3600 rpm. Do not tamper with
the governor setting. The governor establishes safe
operating limits which must not be exceeded.
2. The engine idle speed should be set from 1200 to
1800 rpm.
3. Refer to the engine Owner’s Manual for procedure on
setting idle and operating speeds.
Chassis Lubrication
1. Lubricate buggy with a good grade of grease each
day of operation at all point listed below.
• (2) Fittings, top and bottom on dump cylinder,
• (4) Fittings on bucket pivot blocks. Refer to page - # -
Brake Adjustment
1. Place in the engaged position. If you are able to move
the buggy the brake needs to be adjusted.
2. To adjust the brake turn the knob on the end of the
brake lever clockwise to tighten the brake. Refer to
page - # -
SYSTEM MAINTENANCE EACH USE EVERY 50
HOURS
EVERY 200
HOURS YEARLY
Engine Refer to engine operator/owner manual X
Rear Wheels Remove rear hubs and repack bearings X
Hydraulics Check oil level X
Check for oil leaks X
Change oil, clean strainer XX
Filter Change filter with every oil change2XX
Hardware Check and tighten as needed1XX
Chassis Grease daily before each use X
SYSTEM FLUID VOLUME RECOMMENDED OIL
Hydraulic oil EXXON Nuto H68 Hydraulic Oil
Engine Refer to engine Owner’s Manual
- 8 -
3. When the brake is adjusted correctly it will take
considerable pressure to move the lever over center
to the engaged position. With the parking brake
engaged you should not be able to move the buggy.
PUMP
CHARGE A
PUMP
FILTER
DUMP
CYLINDER
DUMP VALVE
RESERVOIR
DOWN
UP
DIRECTIONAL
SUPPLY
BRETURN
FORWARD
REVERSE
VALVE
WHEEL MOTORS
HYDRAULIC SCHEMATIC
- 9 -
SERVICE
Assembly and disassembly should be performed by a
service technician who has been factory trained on MBW
equipment. The unit should be clean and free of debris.
Pressure washing before disassembly is recommended.
• Prior to assembly, wash all parts in a suitable cleaner or
solvent.
• Check moving parts for wear and failure. Refer to the
Replacement Parts section in this manual for tolerance
and replacement cycles.
• All shafts and housings should be oiled prior to pressing
bearings. Also, ensure that the bearings are pressed
square and are seated properly.
• All gaskets and seals should be replaced after any
disassembly.
Torque Chart
Service Tools
Parts Replacement Cycles and Tolerances
SIZE GRADE 2 GRADE 5 GRADE 8
1/4-20 49 in•lbs 76 in•lbs 9 ft•lbs
1/4-28 56 in•lbs 87 in•lbs 10 ft•lbs
5/16-18 8 ft•lbs 13 ft•lbs 18 ft•lbs
5/16-24 9 ft•lbs 14 ft•lbs 20 ft•lbs
3/8-16 15 ft•lbs 23 ft•lbs 33 ft•lbs
3/8-24 17 ft•lbs 26 ft•lbs 37 ft•lbs
7/16-14 24 ft•lbs 37 ft•lbs 52 ft•lbs
7/16-20 27 ft•lbs 41 ft•lbs 58 ft•lbs
1/2-13 37 ft•lbs 57 ft•lbs 80 ft•lbs
1/2-20 41 ft•lbs 64 ft•lbs 90 ft•lbs
9/16-12 53 ft•lbs 82 ft•lbs 115 ft•lbs
5/8-11 73 ft•lbs 112 ft•lbs 159 ft•lbs
5/8-18 83 ft•lbs 112 ft•lbs 180 ft•lbs
3/4-16 144 ft•lbs 200 ft•lbs 315 ft•lbs
1-8 188 ft•lbs 483 ft•lbs 682 ft•lbs
1-14 210 ft•lbs 541 ft•lbs 764 ft•lbs
1-1/2-6 652 ft•lbs 1462 ft•lbs 2371 ft•lbs
M 6 3 ft•lbs 4 ft•lbs 7 ft•lbs
M 8 6 ft•lbs 10 ft•lbs 18 ft•lbs
M 10 10 ft•lbs 20 ft•lbs 30 ft•lbs
CONVERSIONS
in•lbs x 0.083 = ft•lbs
ft•lbs x 12 = in•lbs
ft•lbs x 0.1383 = kg•m
ft•lbs x 1.3558 = N•m
Part No. Description
SIZE GRADE 2 GRADE 5 GRADE 8
Bearings Replace anytime a bearing is rough, binding, discolored or removed from housing or
shaft.
Engine Components Refer to your engine manufacturer’s Owner’s Manual.
Hardware Replace any worn or damaged hardware as needed. Replacement hardware should
be grade 5 and zinc plated unless otherwise specified.
Safety Decals Replace if they become damaged or illegible.
Seals & Gaskets Replace if a leak is detected and at every overhaul or tear down.
- 10 -
MBW, Inc.
250 Hartford Rd • PO Box 440
Slinger, WI 53086-0440
Phone: (262) 644-5234
Fax: (262) 644-5169
Email: mbw@mbw.com
Website: www.mbw.com
MBW Europe Ltd.
Units 2&3 Cochrane Street
Bolton BL3 6BN
England, UK
Phone: + 44 (0) 1204 387784
Fax: + 44 (0) 1204 387797
Contact Information
REPLACEMENT PARTS
The warranty is stated in this book on page 26. Failure to
return the Warranty Registration Card renders the warranty
null and void.
MBW has established a network of reputable distributors/
dealers with trained mechanics and full facilities for
maintenance and rebuilding, and to carry an adequate parts
stock in all areas of the country. Their sales engineers are
available for professional consultation. If you cannot locate
an MBW distributor in your area, contact MBW or one of our
Sales Branches listed below.
When ordering replacement parts, be sure to have the
following information available:
• Model and Serial Number of machine when ordering
MBW parts
• Model and Serial Number of engine when ordering
engine parts
• Part Number, Description, and Quantity
• Company Name, Address, Zip Code, and Purchase
Order Number
• Preferred method of shipping
REMEMBER - You own the best! If repairs are needed,
use only MBW parts purchased from authorized
MBW distributors.
The unit’s serial number can be found in the following
location:
• The model/serial number decal is located on the engine
deck as shown above.
Write Model Number here
Write Serial Number here
DECAL, SERIAL NO.
- 11 -
(4) 3%990460, Washer, Lock
(4) 3%981055, Nut
3%665010, Battery Cable Negative (2ft), 709165, Terminal Ring (2)
3%732220, Engine, Honda GX390 Recoil Start
Air Duct, 0PB- 21 ONL Y
3%511860, Mount Angle,
3%665011, Battery Cable
Positive (2tf.)
3%W470820,Battery
Holdown Rod
3%992120, Hex Nut
3%470535, Shaft Key
3%990400, Lock Washer
0PB-21 ONLY
0PB-21 ONLY
3%500690, Air Duct Assy.
3%732086, Engine, B&S 18HP
3%673050, Battery
3%990400, Lock Washer
3%990400, Lock Washer
0PB-16 ONLY
(4) 3%981070, Washer
(4) 3%981220, Screw (IPB-16)
3%500602, Chassis Assy.
3%W470890, Battery Holdown
3%732220E, Engine,
Honda GX390
Electric Start (Optional)
(4) 3%981223, Screw (IPB-21)
ENGINE AND FRAME
ITEMS NOT SHOWN:
PB732220ELP - Engine, GX390 Electric Start, LP Conversion.
PBLPBRACKET - Propane Tank Bracket, Set of (2).
PBLPTANK9367 - Propane Tank, Vapor 33.
PBLPTM18 - Mounting Bracket, Propane Tank.
- 12 -
3%796540, Rod End, Pump Engine Mount to Frame
3%W8041, Fan
(2) 3%994990, Washer
(2) 3%897105, Fitting
(2) 3%981900, Screw
(2) 3%990080, Washer
3%898260, Fitting
3%W8018, Pump Engine Mount
3%760630-1, Coupling 3/4" (machined)
3%W8117-1, Spider
3%760625, Coupling 1"
(2) 3%981915, Set Screw
(
2) 3%981895, Screw
3%W8016, Coupling Kit
(2) 3%980300, Nut
To Tank
3%W450130, Hose
3%W450135, Hose
To Tank
3%760515, Pump
3%760545, Key
PUMP AND COUPLING
- 13 -
3%560140H, Hose Supply
To Pump Port "A"
(2) 3%990150, Nut
To Pump Port "B"
3%560145H, Hose Return
(3)3%897090, Hyd. Fitting, 90°
3%560155H, Hose Return
3%560150H, Hose Supply
(6) 3%995830, Screw
(2) 3%981740, Screw
(2) 3%981070, Washer
3%511820, Valve Mt., Stand
3%897660, Valve
(3%897660-3, Seal Kit -Valve)
(2) 3%981855, Screw
Drive Motor Supply
Drive Motor Return
3%897515, Hyd. Fitting, Reducer
3%898455, Hyd. Fitting, 90°
3%800230, Control Lever Assembly,
includes: lever, link & pin
3%897660-2, Bracket Handle Mount w/screws
(3)3%897090, Hyd. Fitting, 90°
3%511865, Bracket
3%W8473, Bracket
3%897660-1, Link-chain
DIRECTION CONTROL VALVE
- 14 -
3%898375, Hyd. Fitting
3%894230, Plug
(2) 3%980300, Nut
3%W460300, Oil Tank
3%898330, Filter Head
(2) 3%993440, Screw
(2) 3%981900, Screw
(2) 3%990080, Washer
3%W8163, Filter Cartridge
3%560186, Hose, Oil Filter-Pump
3%560190, Hose
3%W470106, Cap, Only
3%W760105, Cap, Filler
Complete with Strainer
3%898276
Bushing
HYDRAULIC OIL RESERVOIR
- 15 -
3%500622, Lever, Hand Dump
3%897656, Valve
To Pump
3%560185, Hose
3%796545, Knob
(2)3%898566, Hyd. Fitting, 90°
(3) 3%990150, Nut
(3) 3%981745 Washer
3%994560, Nut
(2)3%981115 Nut
3%990400, Lock Washer
(2) 3%990140, Screw
3%981280, Screw
3%980480, Washer
3%512665, Foot Dump
Lever
(2)3%796075, Cotter Pin
(2)3%980420, Clevis Pin
3%996540, Jam
Nut
3%897656-1 Clevis Pin 5/32"x3/4"
3%512635, Rod/Foot Dump
(2) 3%796505, Clevis
DUMP VALVE
- 16 -
3%560175, Hose, Hyd. Cyl.
(Up)
(4) 3%796075, Cotter Pin
3%W8396, Cylinder
3%760685, CylindeU
0PB16 Only
3%W8122, Pin
THESE ITEMS ARE LOCATED ON
THE BACKSIDE OF THE COUNTERWEIGHT
3%W470795, Pin
(2) 3%796555, Capplug
(2) 3%794550, Grease Fitting
3%560180, Hose, Hyd. Cyl.
(Down)
THESE ITEMS ARE LOCATED ON
THE UNDERSIDE OF THE BASE PLATE
(2) 3%W470650, Support, Cylinder (welded to frame)
0PB2121/<
DUMP CYLINDER
- 17 -
To Drive Motors
3%560165, Hose Drive Motor Return
3%560160, Hose, Drive Motor Supply
(2) 3%898556, Bulkhead Nut
(2) 3%898555, 90° Bulkhead Fitting w/Nut
Return To Valve
* 3%560160 & 3%560165 Are Located Inside Frame Tubing.
Supply From Valve
HYDRAULICS (DRIVE MOTOR)
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MBW MPB21 Owner's manual

MBW
Brand
MBW
Model
MPB21
Type
Owner's manual
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