MULTIQUIP Whiteman series Guide

OPERATION AND PARTS MANUAL
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
To find the latest revision of this
publication, visit our website at:
www.multiquip.com
SERIES
MODEL
WBH-21EFP
POWER BUGGY
(B&S VANGUARD 18 HP PROPANE DRIVEN ELECTRIC START)
Revision #0 (03/06/18)

PAGE 2 — WBH-21EFP POWER BUGGY • OPERATION AND PARTS MANUAL — REV. #0 (03/01/18)
PROPOSITION 65 WARNING
Engine exhaust and some of
its constituents, and some dust created
of California to cause cancer, birth
defects and other reproductive harm.
by power sanding, sawing, grinding,
drillingandotherconstructionactivities
contains chemicals known to the State
Some examples of these chemicals are:
Leadfromlead-basedpaints.
Crystallinesilicafrombricks.
Cementandothermasonryproducts.
Arsenicandchromiumfromchemically
treatedlumber.
Your risk from these exposures varies,
dependingonhowoftenyoudothistype
of work. To reduce your exposure to
these chemicals: work in aALWAYS
well ventilated area, and work with
approved safety equipment, suchas
dust masks that are specially designed
to filter out microscopic particles.

WBH-21EFP POWER BUGGY • OPERATION AND PARTS MANUAL — REV. #0 (03/01/18) — PAGE 3
TABLE OF CONTENTS
WBH-21EFP POWER BUGGY
Proposition 65 Warning ........................................... 2
Table Of Contents.................................................... 3
Parts Ordering Procedures...................................... 4
Safety Information .............................................. 5-11
Specifications (Buggy)........................................... 12
Specifications (Engine).......................................... 13
Dimensions............................................................ 14
General Information............................................... 15
Components .......................................................... 16
Basic Engine.......................................................... 17
Inspection ......................................................... 18-20
Operation.......................................................... 21-26
Maintenance..................................................... 27-35
Troubleshooting ................................................ 36-38
Hydraulic System Diagram .................................... 39
Hydraulic Hose Connections ................................. 40
Engine Wiring Diagram.......................................... 41
Explanation Of Code In Remarks Column............. 42
Suggested Spare Parts ......................................... 43
Component Drawings
Nameplate And Decals Assembly..................... 44-45
Hydraulic Drive Assembly................................. 46-47
Hydraulic Pump Assembly................................ 48-49
Hydraulic Dump Assembly ............................... 50-51
Pump And Coupling Assembly......................... 52-53
Tub Assembly ................................................... 54-55
Panel Assembly................................................ 56-57
Brake Assembly................................................ 58-59
Steering And Controls Assembly...................... 60-61
Chassis Assembly ............................................ 62-63
Handle/Foot Dump Controls Assembly............. 64-65
Hydraulic Oil Tank Assembly ............................ 66-67
Battery Assembly.............................................. 68-69
Carburetor Assembly........................................ 70-71
Regulator And Vacuum Assembly .................... 72-73
Propane Tank Assembly ................................... 74-75
Engine Mounting Assembly.............................. 76-77
Engine Service Parts........................................ 78-79
Terms And Conditions Of Sale — Parts ................ 80
NOTICE
Specifications and part numbers are subject to change
without notice.

PAGE 4 — WBH-21EFP POWER BUGGY • OPERATION AND PARTS MANUAL — REV. #0 (03/01/18)
www.multiquip.com
Ordering parts has never been easier!
Choose from three easy options:
WE ACCEPT ALL MAJOR CREDIT CARDS!
When ordering parts, please supply:
❒Dealer Account Number
❒Dealer Name and Address
❒Shipping Address (if different than billing address)
❒Return Fax Number
❒Applicable Model Number
❒Quantity, Part Number and Description of Each Part
❒Specify Preferred Method of Shipment:
✓ UPS/Fed Ex ✓DHL
■Priority One ✓Tr u ck
■Ground
■Next Day
■Second/Third Day
If you have an MQ Account, to obtain a Username
and Password, E-mail us at:
parts@multiquip.
com.
To obtain an MQ Account, contact your
District Sales Manager for more information.
Order via Internet (Dealers Only):
Order parts on-line using Multiquip’s SmartEquip website!
■View Parts Diagrams
■Order Parts
■Print Specification Information
Note: Discounts Are Subject To Change
Goto www.multiquip.com and click on
Order Parts to log in and save!
Use the internet and qualify for a 5% Discount
on Standard orders for all orders which include
complete part numbers.*
Order via Fax (Dealers Only):
All customers are welcome to order parts via Fax.
Domestic (US) Customers dial:
1-800-6-PARTS-7 (800-672-7877)
Fax your order in and qualify for a 2% Discount
on Standard orders for all orders which include
complete part numbers.*
Order via Phone: Domestic (US) Dealers Call:
1-800-427-1244
Best Deal!
International Customers should contact
their local Multiquip Representatives for
Parts Ordering information.
Non-Dealer Customers:
Contact your local Multiquip Dealer for
parts or call 800-427-1244 for help in
locating a dealer near you.
Note: Discounts Are Subject To Change
Effective:
January 1st
, 2006
NOTICE
All orders are treated as Standard Orders and will
ship the same day if received prior to 3PM PST.
PARTS ORDERING PROCEDURES

WBH-21EFP POWER BUGGY • OPERATION AND PARTS MANUAL — REV. #0 (03/01/18) — PAGE 5
SAFETY INFORMATION
Do not operate or service the equipment before reading
the entire manual. Safety precautions should be followed
at all times when operating this equipment.
Failure to read and understand the safety
messages and operating instructions could
result in injury to yourself and others.
SAFETY MESSAGES
The four safety messages shown below will inform you
about potential hazards that could injure you or others.The
safety messages specifically address the level of exposure
to the operator and are preceded by one of four words:
DANGER, WARNING, CAUTION
or NOTICE.
SAFETY SYMBOLS
DANGER
Indicates a hazardous situation which, if not avoided,
WILL result in DEATH or SERIOUS INJURY.
WARNING
Indicates a hazardous situation which, if not avoided,
COULD result in DEATH or SERIOUS INJURY.
CAUTION
Indicates a hazardous situation which, if not avoided,
COULD result in MINOR or MODERATE INJURY.
NOTICE
Addresses practices not related to personal injury.
Potential hazards associated with the operation of this
equipment will be referenced with hazard symbols which
may appear throughout this manual in conjunction with
safety messages.
Lethal exhaust gas hazards
Explosive fuel hazards
Burn hazards
Rotating parts hazards
Symbol Safety Hazard
Hydraulic fluid hazards

PAGE 6 — WBH-21EFP POWER BUGGY • OPERATION AND PARTS MANUAL — REV. #0 (03/01/18)
SAFETY INFORMATION
GENERAL SAFETY
CAUTION

NEVER operate this equipment without proper protective
clothing, shatterproof glasses, respiratory protection,
hearing protection, steel-toed boots and other protective
devices required by the job or city and state regulations.

Avoid wearing jewelry or loose fitting clothes that may
snag on the controls or moving parts, as this can cause
serious injury.

NEVER operate this equipment when not
feeling well due to fatigue, illness, or when
using medication.

NEVER operate this equipment under the
influence of drugs or alcohol.

ALWAYS clear the work area of any debris, tools, etc.
that would constitute a hazard while the equipment is
in operation.

No one other than the operator is to be in the working
area when the equipment is in operation.

DO NOT use the equipment for any purpose other than
its intended purposes or applications.
NOTICE

This equipment should only be operated by trained and
qualified personnel 18 years of age and older.

Whenever necessary, replace nameplate, operation and
safety decals when they become difficult read.

Manufacturer does not assume responsibility for any
accident due to equipment modifications. Unauthorized
equipment modification will void all warranties.
NEVER
use accessories or attachments that are not
recommended by Multiquip for this equipment. Damage
to the equipment and/or injury to the user may result.
ALWAYS know the location of the nearest
fire extinguisher.
ALWAYS know the location of the nearest
first aid kit.
ALWAYS know the location of the nearest phone or
keep
a phone on the job site.
Also, know the phone numbers
of the nearest ambulance, doctor and
fire department.
This information will be invaluable in the case of an
emergency.

WBH-21EFP POWER BUGGY • OPERATION AND PARTS MANUAL — REV. #0 (03/01/18) — PAGE 7
SAFETY INFORMATION
POWER BUGGY SAFETY
DANGER

Engine fuel exhaust gases contain poisonous carbon
monoxide. This gas is colorless and odorless, and can
cause death if inhaled.

Operate equipment only in
areas with adequate
ventilation. NEVER operate
in confined areas, or in
areas where the free flow of
air is restricted.

NEVER operate the equipment in an explosive
atmosphere or near combustible materials.An
explosion or fire could result, causing severe
bodily harm or even death.
WARNING

NEVER use your hand to find hydraulic leaks.
Use a piece of wood or cardboard. Hydraulic
fluid injected into the skin must be treated by
a knowledgeable physician immediately or
severe injury or death can occur.

Accidental starting can cause severe injury
or death.ALWAYS place the ON/OFF
switch in the OFF position.

NEVER disconnect any emergency or safety devices.
These devices are intended for operator safety.
Disconnection of these devices can cause severe injury,
bodily harm or even death. Disconnection of any of
these devices will void all warranties.

NEVER approach power lines with any part of the
buggy unless all local, state/provincial and federal
(OSHA) required safety precautions have been taken.
Use extreme caution when approaching high voltage
power lines.
DANGEROUS
GAS FUMES
CAUTION
ALWAYS
inspect the surface over which you will travel.
Look for holes, drop-offs, and obstacles. Look for rough
and weak spots on docks, ramps or floor. Look for oil
spills, wet spots, and slippery surfaces. Look for soft
soil, deep mud, and standing water. Watch for anything
that might make you lose control or cause the power
buggy to tip over.
ALWAYS
clear away trash and debris. Pick up anything
that might puncture the tires.
ALWAYS
make sure aisles, ramps, doorways and
passages are clear.
ALWAYS
plan your work. Make sure you know where
you will make your pickups, dumps and turns. Before
you take a load, know where you will place it.
NEVER operate the power
buggy facing backwards. In
a backwards position, the
operator cannot properly grip
the handles, steer the machine,
or activate the manual brake or
emergency switch. ALWAYS
face in the direction of the
bucket.
DO NOT
operate the power buggy on unsafe haul roads,
load areas, or dump areas.
DO NOT
operate the power buggy on excessive slopes
with a grade higher than 10% (6°), forward and backward.
DO NOT
operate the power buggy on extremely uneven
surfaces.
NEVER
allow riders other than the operator on the
power buggy.
ALWAYS
secure the step plate (platform) in the upright
position when using the power buggy over rough terrain.
DO NOT
stand on the power buggy step plate (platform)
when walking in rough terrain.Walk behind the power buggy.
DO NOT
touch, lean on, or reach through the dump
mechanism or permit others to do so. NEVER
climb on
the power buggy or dump mechanism.
WBH21EFP

PAGE 8 — WBH-21EFP POWER BUGGY • OPERATION AND PARTS MANUAL — REV. #0 (03/01/18)
SAFETY INFORMATION
DO NOT operate the power buggy at excessive speeds.
Reckless operation may cause accidents and severe
injury. Slow down when approaching people, wet areas,
and going up and down grades. It is the responsibility of
the operator to adjust speed, as necessary, depending
on the conditions of the road or path.

ALLOW extra time to stop when operating the power
buggy on wet surfaces or loosely graded materials.

DO NOT dump materials that are large and chunky.
These types of material may shift, causing the power
buggy to tip and throw the operator off the machine.The
power buggy is intended for dumping free-flowing and
loose materials such as dry soil, slag, and wet concrete.

DO NOT dump materials from the bucket while the power
buggy is moving.

For walk-behind operation, the operator platform must be
stowed and locked in the up position.The speed should
also be reduced to 3 mph (4.8 kph) or slower.
NOTICE

ALWAYS ensure the power buggy is securely placed
on appropriate blocks or jackstands when maintenance
requires elevation of the buggy.

ALWAYS make sure the power buggy’s brakes are
working properly. Check the brake linkage and adjust
as required. NEVER operate the power buggy with a
defective braking system.

Ensure brakes are applied when using on a slope.

When parking on a slope, position the power buggy at
a right angle to a slope. Ensure that the parking brake
is engaged and holds the power buggy safely in place
when parking on a slope.

When filling or dumping, DO NOT exceed the payload
capacity of the power buggy.

ALWAYS be aware of traveling conditions. Reduce load
if necessary.

DO NOT activate the dump mechanism (tub) if the buggy
is facing a downhill slope.

DO NOT stand in front of or along side the buggy when
discharging a load.
ALWAYS block the power buggy with appropriate blocks
when leaving the power buggy parked on a slope.
To prevent unexpected loss of control, DO NOT
start the
engine on a sloping surface.

Ensure that the speed control lever works freely and
returns to the closed position. DO NOT
start the engine
unless the speed control linkage is working properly.

Make sure the tires are inflated to the manufacturer’s
recommended tire pressure.
NEVER
operate the power buggy with bad or worn tires.
ALWAYS replace defective tires with new ones.
ALWAYS
make sure the hydraulic dumping mechanism
of the tub is working properly.

Avoid sudden stops and starts and changes in direction.
Operate the controls smoothly. DO NOT
jerk the steering
or any other controls.
NEVER
attempt to work the controls except from the
operator’s position.
NEVER
drive or tow the power buggy in traffic or on
public roads.
ALWAYS keep the machine in proper running condition.

Fix damage to the machine and replace any broken
parts immediately.

Theentirepowerbuggy(tub, stepplate, shroud,wheels, etc.)
should be cleaned after every use. Make sure there is no
buildup of concrete, grease, oil, or debris on the machine.
ALWAYS
store equipment properly when it is not being
used. Equipment should be stored in a clean, dry location
out of the reach of children and unauthorized personnel.
ALWAYS place the fuel valve lever in the OFF
position
when the equipment is not in use.

WBH-21EFP POWER BUGGY • OPERATION AND PARTS MANUAL — REV. #0 (03/01/18) — PAGE 9
SAFETY INFORMATION
ENGINE SAFETY
WARNING

DO NOT place hands or fingers inside the
engine compartment when the engine is
running.

NEVER operate the engine with heat shields or
guards removed.

Keep fingers, hands, hair, and clothing away
from all moving parts to prevent injury.

ALWAYS shut down the engine before
performing service or maintenance.

DO NOT remove the engine oil drain plug while the
engine is hot. Hot oil will gush out of the oil tank and
severely scald any persons in the general area of the
power buggy.
CAUTION

NEVER touch the hot exhaust manifold,
muffler or cylinder. Allow these parts to cool
before servicing the equipment.

Make certain the operator knows how to and is capable
of turning the engine OFF in case of an emergency.
NOTICE

NEVER run the engine without an air filter or with a dirty
air filter. Severe engine damage may occur. Service the
air filter frequently to prevent engine malfunction.

NEVER tamper with the factory settings
of the engine or engine governor. Damage
to the engine or equipment can result
if operating in speed ranges above the
maximum allowable.
FUEL SAFETY (LPG/PROPANE)
DANGER
ALWAYS
use extreme caution when handling propane.
Propane is flammable and explosive
and can cause
serious personal injury or death
if not handled
properly.
DO NOT
fill propane tank within 25 feet (7.62 meters) of
buildings and adjoining structures that may be a source
of ignition.

Remove all combustible materials including dry grass
and leaves within 25 feet (7.62 meters) of the LPG
dispenser.

Before filling, visually inspect the propane tank for
dents, cracks, and excessive corrosion. NEVER
fill the
propane tank if it is damaged, corroded, displays leaks
at fittings\valves, or contains foreign material.
NEVER
fill the propane tank if the pressure relief or fill
valves are damaged.
ALWAYS fill the propane tank outdoors
in a well-ventilated
area, away from sparks and open flames. LP gas is
odorless and invisible.
DO NOT
fill the propane tank while the engine is running
or hot.
DO NOT smoke around or near the
equipment. Fire or explosion could result
from gas vapors.

Accumulation of LP gas vapors may result in the
development of an oxygen-deficient atmosphere which
carries a risk of asphyxiation.
NEVER
enter a gas cloud area.This condition produces
an oxygen-deficient atmosphere that could be fatal.

LPG/propane storage locations should be equipped with
at least one approved portable fire extinguisher that has
a minimum capacity of 18 lb. dry chemical with a B:C
rating. DO NOT
use carbon-tetrachloride extinguishers
such as pyrene.
NEVER check for leaks using an open flame.

PAGE 10 — WBH-21EFP POWER BUGGY • OPERATION AND PARTS MANUAL — REV. #0 (03/01/18)
SAFETY INFORMATION
CAUTION

NEVER use propane tanks that are filled beyond 80%
capacity.

The propane tank must be filled by a trained propane
filling station attendant or someone who has been
officially trained by a propane fuel provider.

ALWAYS use protective gloves when handling the
propane tank. LP gas will cause cold burns if it comes
into contact with the skin.

The eyes and body must be protected when handling all
LP gas products. ALWAYS wear protective eye safety
glasses and clothing.

LP gas is heavier than air. An underground or low level
leak might not be detected immediately.
NOTICE

Only use propane when operating this equipment.
NEVER use any other type of fuel including diesel or
methanol as serious damage to the engine will occur.

Consult the National Fire Protection Association (NFPA)
handbook for the handling, storing, transporting and
useage of propane fuel.
BATTERY SAFETY
DANGER

DO NOT drop the battery. There is a possibility that the
battery will explode.

DO NOT expose the battery to open flames,
sparks, cigarettes, etc.The battery contains
combustible gases and liquids. If these
gases and liquids come into contact with a
flame or spark, an explosion could occur.
WARNING

ALWAYS wear safety glasses when
handling the battery to avoid eye irritation.
The battery contains acids that can cause
injury to the eyes and skin.

Use well-insulated gloves when picking up
the battery.

ALWAYS keep the battery charged. If the battery is not
charged, combustible gas will build up.
DO NOT charge the battery if frozen. The battery can
explode
. When frozen, warm the battery to at least
61°F (16°C).
ALWAYS
recharge the battery in a well-ventilated
environment to avoid the risk of a dangerous concentration
of combustible gases.
If the battery liquid (dilute sulfuric acid)
comes into contact with clothing or skin,
rinse skin or clothing immediately with
plenty of water.

If the battery liquid (dilute sulfuric acid) comes into
contact with eyes
, rinse eyes immediately with plenty
of water and contact the nearest doctor or hospital to
seek medical attention.
CAUTION
ALWAYS disconnect the NEGATIVE
battery terminal
before performing service on the equipment.
ALWAYS
keep battery cables in good working condition.
Repair or replace all worn cables.
LIFTING SAFETY
CAUTION
NEVER
allow any person or animal to stand underneath
the equipment while lifting.
NOTICE

When lifting of the power buggy is required, use a
properly rated forklift. Forklift pockets are provided on
the power buggy's frame. Make sure the forklift arms are
insert into the power buggy's forklift pockets a minimum
of 24 inches. Before lifting, make sure that the lifting bail
is not damaged.
NEVER
tip the engine to extreme angles during lifting
as this may cause oil to gravitate into the cylinder head,
making it difficult to start the engine.
DO NOT lift the machine to unnecessary heights.
NEVER lift the equipment while the engine is running.
ALWAYS
use ramps capable of supporting the weight
of the power buggy and
the operator to load and unload
the power buggy.