Multiquip QP2H User Manual

OPERATION AND PARTS MANUAL

MODEL QP2H

CENTRIFUGAL PUMP

(HONDA GX120U1PX2 GASOLINE ENGINE)

Revision #0 (08/04/08)

To find the latest revision of this

publication, visit our website at:

www.multiquip.com

THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.

PROPOSITION 65 WARNING

PAGE 2 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

NOTES

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 3

TABLE OF CONTENTS

QP2H Centrifugal Pump

Proposition 65 Warning ........................................... 2

Table of Contents .................................................... 4

Parts Ordering Procedures ..................................... 5

Safety Information ................................................ 6-9

Specifications/Dimensions (Pump) ....................... 10

Specifications/Dimensions (Engine) ..................... 11

General Information .............................................. 12

Pump Components ............................................... 13

Basic Engine ......................................................... 14

Inspection (Engine) ............................................... 16

Set-Up ................................................................... 17

Operation ......................................................... 18-19

Maintenance (Pump) ....................................... 20-21

Maintenance (Engine)...................................... 22-23

Storage ................................................................. 24

Troubleshooting (Engine) ................................. 25-26

Troubleshooting (Pump)........................................ 26

Explanation of Code in Remarks Column ............. 28

Suggested Spare Parts ......................................... 29

Honda GX120U1PX2 Engine

Air Cleaner (Dual) Assembly ............................ 32-33

Camshaft Assembly ......................................... 34-35

Carburetor Assembly ....................................... 36-37

Control Assembly ............................................. 38-39

Crankcase Cover Assembly ............................. 40-41

Crankshaft Assembly ....................................... 42-43

Cylinder Barrel Assembly ................................. 44-45

Cylinder Head Assembly .................................. 46-47

Fan Cover Assembly ........................................ 48-49

Flywheel Assembly .......................................... 50-51

Fuel Tank Assembly ......................................... 52-53

Ignition Coil Assembly ...................................... 54-55

Muffler Assembly ............................................. 56-57

Piston Assembly ............................................... 58-59

Recoil Starter Assembly ................................... 60-61

Gasket Assembly ............................................. 62-63

Labels Assembly .............................................. 64-65

Terms and Conditions of Sale — Parts ................. 66

Component Drawings

Pump Assembly ............................................... 30-31

Specifications and part numbers are subject
to change without notice.

PAGE 4 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

PARTS ORDERING PROCEDURES

r

Ordering parts has never been easier!

Choose from three easy options:

Effective:

January 1

st

, 2006

Best Deal!

Order via Internet (Dealers Only):

Order parts on-line using Multiquip’s SmartEquip website!

■

View Parts Diagrams

■

Order Parts

■

Print Specification Information

Goto www.multiquip.com and click on

Order Par ts

to log in and save!

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)

Order via Phone:

Non-Dealer Customers:

Contact your local Multiquip Dealer for
parts or call 800-427-1244 for help in
locating a dealer near you.

If you have an MQ Account, to obtain a
Username and Password, E-mail us at:

[e-mail].

To obtain an MQ Account, contact you
District Sales Manager for more information.

Use the

internet

on

Standard orders

and qualify for a 5% Discount

for all orders which include

complete part numbers.*

Fax

your order in and qualify for a 2% Discount

on

Standard orders

for all orders which include

complete part numbers.*

Domestic (US) Dealers Call:

1-800-427-1244

International Customers

their local Multiquip Representatives for
Parts Ordering information.

Note: Discounts Are Subject To Change

Note: Discounts Are Subject To Change

should contact

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

❒❒

All orders are treated as
and will ship the same day if received prior
to 3PM PST.

www.multiquip.com

WE ACCEPT ALL MAJOR CREDIT CARDS!

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 5

❒❒

❒

Specify Preferred Method of Shipment:

❒❒

✓

UPS/Fed Ex

■

Priority One

■

Ground

■ Next Day

■

Second/Third Day

Standard Orders

✓ DHL
✓

Tr u c k

SAFETY INFORMATION

FOR YOUR SAFETY AND SAFETY OF OTHERS!

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.

This manual has been developed to
provide complete instructions for the
safe and efficient operation of this
equipment. Refer to the engine
manufacturer’s instructions for data
relative to its safe operation.

Before using this equipment ensure that the operating
individual has read and understood all instructions in this
manual.

SAFETY MESSAGES

HAZARD SYMBOLS

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.

The three 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, WARNING or CAUTION.

DANGER

You WILL be
DO NOT follow these directions.

WARNING

You CAN be KILLED or
DO NOT follow these directions.

CAUTION

KILLED

or

SERIOUSLY INJURED

SERIOUSLY INJURED

if you

if you

You CAN be
directions.

PAGE 6 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

INJURED

if you DO NOT follow these

r

r

w

GENERAL SAFETY

■

DO NOT operate or service this equipment
before reading the entire manual. The
equipment is to be operated by trained and
qualified personnel only! The equipment is
for industrial use only.

■

This equipment should not be operated by persons under
18 years of age.

■

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.

■

NEVER operate this equipment when not
feeling well due to fatigue, illness or when
under medication.

■

NEVER operate this equipment under the influence of
drugs or alcohol.

■

NEVER disconnect any

devices.”

Disconnection of these devices can cause severe injury,
bodily harm or even death! Disconnection of any of these
devices 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 user may result.

■

Manufacturer does not assume responsibility for any
accident due to equipment modifications. Unauthorized
equipment modification will void all warranties.

■

Whenever necessary, replace nameplate, operation and
safety decals when they become difficult read.

■

ALWAYS check the equipment for loosened threads or
bolts before starting.

These devices are intended for operator safety.

“emergency or safety

SAFETY INFORMATION

■

NEVER touch the hot exhaust manifold,
muffler or cylinder. Allow these parts to cool
before servicing engine or pump. Never
operate the engine with heat shields or
guards removed.

■

ALWAYS allow the engine to cool before adding fuel o
performing service and maintenance functions. Contact
with

hot

components can cause serious burns.

■

NEVER operate this equipment in any enclosed o
narrow area where free flow of the air is restricted. The
engine of this equipment requires an adequate free flo
of cooling air. If the air flow is restricted it will cause
serious damage to the
equipment or engine and
may cause injury to people
and property. The engine fuel
exhaust gases contain
poisonous carbon monoxide.
This gas is colorless and
odorless, and can cause
death if inhaled.

■

ALWAYS refuel in a well-ventilated area, away from
sparks and open flames. 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.

■

ALWAYS use extreme caution when working with
flammable liquids. When refueling, stop the engine and

allow it to cool.

■

DO NOT smoke around or near the
equipment. Fire or explosion could result
from fuel vapors, or if fuel is spilled on a hot
engine.

■

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.

■

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.

■

ALWAYS replace any worn or damaged warning decals.

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 7

■

NEVER run engine without air cleaner. Severe engine
damage may occur.

■

ALWAYS ensure pump is on level ground before use.

■

NEVER pump volatile, explosive,
flammable or low flash point fluids.
These fluids could ignite or explode.
NEVER pump corrosive chemicals or
water containing toxic substances.
These fluids could create serious health
and environmental hazards. Contact
local authorities for assistance.

■

NEVER open the priming plug when pump is hot. Hot
water inside could be pressurized much like the radiator
of an automobile. Allow pump to cool to the touch before
loosening plug. The possibility exists of scalding, resulting
in severe bodily harm.

■

NEVER block or restrict flow from discharge hose.
Remove kinks from discharge line before starting pump.
Operation with a blocked discharge line can cause water
inside pump to overheat.

SAFETY INFORMATION

LOADING AND UNLOADING

■

Before lifting, make sure that equipment parts (hook and
vibration insulator) are not damaged and screws are not
loosened or lost.

■

ALWAYS make sure crane or lifting device has been
properly secured to the lifting bail (hook) of the
equipment.

■

NEVER lift the equipment while the engine is running.

■

Use adequate lifting cable (wire or rope) of sufficient
strength.

■

Use one point suspension hook and lift straight upwards.

■

NEVER allow any person or animal to stand underneath
the equipment while lifting.

■

DO NOT lift machine to unnecessary heights.

■

ALWAYS fill the pump casing with water before starting
the engine. Failure to maintain water inside the pump
housing will cause severe damage to the pump and
mechanical seal.

■

In winter drain water from pump housing to prevent
freezing.

■

NEVER tamper with the factory setting of
the engine governor. Personal injury and
equipment damage can result if operating
in speed ranges above the maximum
allowable.

TRANSPORTING



ALWAYS shutdown engine before transporting.



Tighten fuel tank cap securely and close fuel cock to
prevent fuel from spilling.



ALWAYS tie down the equipment during transport by
securing the equipment with rope.

PAGE 8 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

SAFETY INFORMATION

REFUELING

MAINTENANCE SAFETY

■

NEVER lubricate components or attempt service on a
running machine.

EMERGENCIES

■

ALWAYS know the location of the nearest

fire extinguisher

■

ALWAYS know the location of the nearest

first aid kit

■

In emergencies,
of the nearest phone or
Also know the phone numbers of the nearest

ambulance, doctor

information will be invaluable in case of emergency.

.

.

always

and

know the location

keep a phone on the job site

fire department

. This

.

■

ALWAYS allow the machine a proper amount of time to
cool before servicing.

■

Keep the equipment in proper running condition.

■

Fix damage to the equipment immediately and always
replace broken parts.

■

Dispose of hazardous waste properly. Examples of
potentially hazardous waste are used motor oil, fuel and
fuel filters.

■

DO NOT use food or plastic containers to dispose of
hazardous waste.

■

DO NOT pour waste, oil or fuel directly onto the ground,
down a drain or into any water source.

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 9

SPECIFICATIONS/DIMENSIONS (PUMP)

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Figure 1. QP2H Dimensions

PAGE 10 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

SPECIFICATIONS/DIMENSIONS (ENGINE)

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QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 11

GENERAL INFORMATION

APPLICATION

pipe connection should always be checked for tightness
and leaks. A small suction leak in the hose or fittings could

The

QP2H Centrifugal Pump

is designed to handle all

prevent the pump from priming.

types of clear water applications. It is ideal for residential
use such as dewatering basements and swimming pools.
Both the suction and discharge ports on the QP2H pump
use a 2-inch diameter opening, which allows the pump to
pump at a rate of approximately 158 gallons/minute (gpm)
or 600 liters/minute (lpm).

Centrifugal or self priming pumps are designed to purge air
from the suction line and create a partial vacuum in the
pump body. The reduced atmospheric pressure inside the
pump allows water to flow through the suction line and into
the pump body. The centrifugal force created by the rotating
impeller pressurizes the water and expels it from the pump.

Power Plant

This centrifugal pump is powered by a 4.0 horsepower air
cooled 4-stroke, single cylinder
engine that incorporates a low “

HONDA GX-120

gasoline

Oil Alert Feature.

”

Elevation

Higher elevations will effect the performance of the pump.
Due to less atmospheric pressure at higher altitudes, pumps
DO NOT have the priming ability that they have at sea
level. This is due to the “thinner air” or lack of oxygen at
higher altitudes.

A general rule of thumb is that for every 1,000 feet of
elevation above sea level a pump will lose one foot of
priming ability.

For example, in Flagstaff, Arizona where the elevation is
approximately 7,000 feet, the pump would have a suction
lift of only 18 feet rather than the 25 feet at sea level. Table
3 shows suction lift at various elevations.

Oil Alert Feature

snoitavelEsuoiraVtatfiLnoitcuS.3elbaT

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In the event of
has a built-in oil alarm engine shut-down feature. In the

low oil

or

no oil

, the HONDA GX-120 engine

,2)086.2(08.8)320.4(2.31)463.5(6.71)507.6(0.22

event the oil level is low the engine will automatically shut­down.

000,6)301.2(09.6)961.3(4.01)602.4(8.31)372.5(3.71

Standard Centrifugal Pump

Standard centrifugal pumps provide an economical choice
for general purpose dewatering. These types of pumps
should only be used in

clear water

applications (agricultural,

industrial, residential) as they have a limited solid handling

Table 4 shows percentage drops in performance as elevation
increases.

capability of only 10% by volume.

Suction Lift

This pump is intended to be used for dewatering
applications and is capable of suction lifts up to 25 feet at
sea level. For optimal suction lift performance keep the
suction hose or line as short as possible. In general, always
place the pump as close to the water as possible.

Pump Support

The pump should always be placed on

ground

NEVER place the pump on

, on a level position.

soft soil

solid stationary

. The suction hose or

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PAGE 12 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

PUMP COMPONENTS

Figure 2 shows a typical application using the QP2H centrifugal pump. Please note that this pump is intended for the
removal of clean water.

Figure 2. QP2H Pump Application

1. Pump – The QP2H is 2-inch centrifugal pump used in
general de-watering applications. Typical dewatering
applications consist of dewatering basements and
swimming pools.

2. Fill Cap – Prior to operation, the pump casing should
be filled with water. Remove this cap to add water to
the pump. After the initial prime, a sufficient amount of
water will be retained in the casing so that the operator
will not need to re-prime later.

If the casing is dry or has insufficient water, the pump
will have difficulty in priming which could lead to
premature mechanical seal wear thus causing damage
to the pump.

3. Discharge Port – Connect a 2-inch discharge hose to
this port.

4. Worm Clamp – Used to secure the hose to the inlet
and outlet ports on the pump. Use two clamps to secure
the hose on the inlet side of the pump.

5. Discharge Hose – Connect this flexible rubber hose

6. Suction Port – Connect a 2-inch inlet hose to this

7. Suction Hose – Connect this flexible rubber hose to

8. Drain Plug – Remove this plug to drain water from the

9. Strainer – Always attach a strainer to bottom side of

to the discharge port on the pump. Make sure that the
hose lays flat and is not kinked. Use only recommended
type discharge hose. Contact Multiquip parts
department for ordering information.

port. Use two worm clamps to secure the hose.

the suction port on the pump. Make sure that the hose
lays flat and is not kinked. Use only recommended
type suction hose. Contact Multiquip parts department
for ordering information.

pump.

the suction hose to prevent large objects and debris
from entering the pump. Strainer should be positioned
so that it will remain completely under water. Running
the pump with the strainer above water for long periods
can damage pump.

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 13

INITIAL SERVICING

The engine (Figure 4) must be checked for proper lubrication
and filled with fuel prior to operation. Refer to the
manufacturers engine manual for instructions and details
of operation and servicing. The engine shown above is a
HONDA engine, operation for other types of engines may
vary somewhat.

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.

DANGER — Fueling the Engine

Adding fuel to the tank should be done 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. Fuel
is extremely flammable, and its vapors can cause an
explosion if ignited. DO NOT smoke while refueling.

2. Throttle Lever – Used to adjust engine RPM speed (lever
advanced forward

FAST

).

SLOW

, lever back toward operator

Figure 4. Engine Controls and Components

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.

BASIC ENGINE

CAUTION — Burn Hazard

3. Engine ON/OFF Switch – ON position permits engine
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.

5. Fuel Valve Lever – OPEN to let fuel flow, CLOSE to stop
the flow of fuel.

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.

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.

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.

9. Muffler – Used to reduce noise and emissions.

10. Fuel Tank – Holds unleaded gasoline. For additional
information refer to engine owner's manual.

PAGE 14 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

NOTES

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 15

INSPECTION (ENGINE)

CAUTION — Read Manual

3. Insert and remove the dipstick without screwing it into

DO NOT attempt to operate the pump until
the Safety Information, General Information

4. If the oil level is low (Figure 6), fill to the edge of the oil

and Inspection sections of this manual have
been

read and thoroughly understood

.

INSPECTION (ENGINE)

1. Clean the pump, removing dirt and dust, particularly
the engine cooling air inlet, carburetor and air cleaner.

2. Check the air filter for dirt and dust. If air filter is dirty,
replace air filter with a new one as required.

3. Check carburetor for external dirt and dust. Clean with
dry compressed air.

4. Check fastening nuts and bolts for tightness.

Engine Oil Check

1. To check the engine oil level, place the pump on secure
level ground with the engine stopped.

2. Remove the filler dipstick from the engine oil filler hole
(Figure 5) and wipe clean.

Fuel Check

the filler neck. Check the oil level shown on the dipstick.

filler hole with the recommended oil type (Table 5).
Maximum oil capacity is 0.63 quarts (0.60 liters).

Figure 6. Engine Oil Dipstick (Oil Level)

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Figure 5. Engine Oil Dipstick (Removal)

1. Remove the gasoline cap located on top of fuel tank.

2. Visually inspect to see if the fuel level is low. If fuel is
low, replenish with unleaded fuel.

3. When refueling, be sure to use a strainer for filtration.

DO NOT top-off fuel. Wipe up any spilled fuel

immediately!

PAGE 16 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

SET-UP

1. Place pump as near to water as possible, on a firm
flat, level surface.

2. To prime pump, remove fill cap (Figure 2) and fill pump
casing with water. If the pump casing is not filled with
water before starting, it will not begin pumping.

3. Attach suction and discharge hoses to the pump. Check
that all hoses are
certain suction hose (Figure 2) does not have any air
leakage. Tighten hose clamps and couplings as
required.

4. It is recommended that 2 clamps be used when
securing the suction hose to the inlet side (suction) of
the pump.

securely

attached to the pump. Make

SET-UP

5. Remember suction hoses must be
collapse when the pump is in operation.

6. Check that the
restricted. Place hose so that it lays as straight as it is
possible on the ground. Remove any twists or sharp
bends from hose which may block the flow of water.

7. The discharge hose is usually a
walled) hose, however if a thin-walled discharge hose
is not available, a rigid suction hose can be substituted
in its place.

8. Make sure the
securely attached to the water end of the suction hose.
The strainer is designed to protect the pump by preventing
large objects from being pulled into the pump.

discharge

Suction and discharge hoses are available
from Multiquip. Contact your nearest dealer
for more information.

suction strainer

rigid

enough not to

hose (Figure 2) is not

collapsible

(Figure 2) is clean and

(thin-

CAUTION — Strainer

The strainer should be positioned so it will remain completely

under water

water for long periods can damage the pump.

. Running the pump with the strainer above

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 17

OPERATION

STARTING THE ENGINE

CAUTION — Pump Priming

DO NOT attempt to start the engine unless the pump

has previously been
damage will occur if pump has not been primed.

1. Place the engine
position.

Figure 7. Engine Fuel Valve Lever (ON Position)

2. Move the
position, about 1/3 of the way toward the fast position.

throttle lever

primed

fuel valve lever

with water. Severe pump

(Figure 7) to the

(Figure 8) away from the slow

ON

4. Place the
if starting a

Figure 10. Engine Choke Lever (Open)

5. Place the
position.

choke lever

warm engine

engine ON/OFF switch

(Figure 10) in the

or the

temperature is warm.

(Figure 11) in the

OPEN

position

ON

Figure 8. Throttle Lever (1/3 Start Position)

3. Place the
if starting a

Figure 9. Engine Choke Lever (Closed)

choke lever

cold

(Figure 9) in the

engine.

CLOSED

position

Figure 11. Engine ON/OFF Switch (ON Position)

6. Grasp the starter grip (Figure 12) and slowly pull it out.
The resistance becomes the hardest at a certain position,
corresponding to the compression point. Pull the starter
grip briskly and smoothly for starting.

Figure 12. Starter Grip

7. If the engine has started, and the choke lever was moved to
the

CLOSED

choke lever lever to the
up.If the engine has not started repeat steps 1 through 6.

position to start the engine, gradually move the

OPEN

position as the engine warms

PAGE 18 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

OPERATION

CAUTION — Maximum Engine Speed

ALWAYS run engine at

STOPPING THE ENGINE

Normal Shutdown

1. Move the throttle lever to the

Figure 13. Choke Lever (Open)

8. Before the pump is placed into operation, run the engine for
several minutes.

9. Check for fuel leaks and noises that would be associated
with a loose component.Check for leaks
and engine. If water is leaking between the pump and
engine housing, the seal inside the pump may be worn or
damaged. Continued operation of the pump is not
recommended. Further usage of the pump under these
conditions may cause severe water damage to engine.

10. To begin pumping, place the throttle lever (Figure 14) in
the

RUN position

discharge port, turn off the engine and check for and clear
any obstructions within the suction hose.

. If water is not flowing out of the

between pump

2. After the engine

full speed

and run the engine for three minutes at low speed.

Figure 15. Throttle Lever (Idle)

cools

, turn the engine ON/OFF switch to

the OFF position (Figure 16).

while pumping.

IDLE

position (Figure 15)

Figure 16. Engine ON/OFF Switch (OFF)

3. Place the

Figure 14. Throttle Lever (Run)

WARNING — High Pressure

Water must always be flowing through the pump casing while
the engine is running. Loss of flow may be the result of a loss of
prime, restricted water flow or a dead-head situation. Please
note that in such a condition, water in the pump can reach
temperatures of 150-200°F in 15 to 20 minutes. This can cause
serious burns if this hot water comes into contact with
unprotected skin. Before touching or opening the fill plug or
drain plug, first turn off the engine and allow the pump casing to
cool to the touch, and then open the pump carefully. Be cautious
of any built up water pressure.

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 19

Emergency Showdown

1. Move the throttle lever quickly to the
place the engine ON/OFF switch in the

fuel shut-off lever

Figure 17. Fuel Valve Lever (OFF)

(Figure 17) in the

OFF

IDLE

position, and

OFF

position.

position.

MAINTENANCE (PUMP)

PUMP VACUUM TEST

CAUTION — Pump Priming

DO NOT attempt to start the engine unless the pump

has previously been
damage will occur if pump has not been primed.

To perform the pump vacuum test do the following:

1. Remove the pump fill cap (Figure 2), and fill the pump
with water.

2. Start the engine as outlined in the initial start-up section,
and wait for the pump to begin pumping.

3. As shown in Figure 18 (next page), place a water hose
inside the discharge opening of the pump, and turn on
the water. This flow of water into the discharge opening
will

prevent

4. Place the
the pump suction (inlet) opening (Figure 18) with the
vacuum gauge facing upwards. It may be necessary
to apply a small amount of water around the rubber
seal of the vacuum tester to make a good suction fit.

Pump Vacuum Tester

primed

the pump from running dry.

with water. Severe pump

(P/N 7000030) over

7. If the vacuum tester gauge indicates a reading

8. To test the

below

-20 in. Hg, it can then be assumed that the pump is not
functioning correctly, and corrective action needs to
be taken.

flapper valve

vacuum tester should remain attached to the pump
suction inlet port by vacuum. This indicates the pump's
flapper valve is seating properly to hold water in the
suction hose when the engine is stopped. This prevents
backflow and allows for faster priming when the engine
is restarted.

, shut down the engine. The

5. Check and make sure that there are no air leaks
between the vacuum tester and the inlet port on the
pump. If air leaks are present reset vacuum tester.

6. Run the pump for a few minutes while monitoring the
vacuum gauge. If the gauge indicates a reading between

-25 and -20 in. Hg. (inches of mercury) then it can be
assumed that the pump is working correctly.

25 in. Hg (inches of mercury) translates into
25 feet of lift at sea level.

PAGE 20 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

MAINTENANCE (PUMP)

Figure 18. Pump Vacuum Tester

Vacuum test may be performed without water
flowing through the discharge port. However,
it is recommended to have water flowing to
prevent any heat-up.

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 21

ENGINE MAINTENANCE

Perform engine maintenance procedures as referenced by
Table 6 below:

MAINTENANCE (ENGINE)

eludehcSecnanetniaMenignE.6elbaT

TSRIF

)3(NOITPIRCSEDNOITAREPOEROFEB

KCEHCX

liOenignE

EGNAHCX

KCEHCX

renaelCriA

EGNAHC)1(X

stuNllA

stloB&

gulPkrapS

sniFgnilooCKCEHCX

retserrAkrapSNAELC X

knaTleuFNAEL

retliFleuFKCEHC X

C X

fInethgit-eR

yrasseceN

NAELC-KCEHCX

ECALPER X

X

HTNOM

RO

.SRH01

TSRIF

52

.SRH

YREVE

SHTNOM3

RO

.SRH52

YREVE

SHTNOM6

RO

.SRH05

YREVE

RAEY

RO

.SRH001

YREVE

RAEY

RO

.SRH002

YREVE

SRAEY2

RO

.SRH002

deepSeldITSUJDA-KCEHC )2(X

ecnaraelCevlaVTSUJDA-KCEHCX X)2(X

senilleuFKCEHC )2()yrassecenfiecal

nidesunehwyltneuqerferomecivreS)1( YTSUD .saera

elnu,relaedcivresruoyybdecivresebdluohssmetiesehT)2(

iciforp

serudecorpecivresroflaunaMpohsADNOHehtotrefeR.tne

per(sraey2yrevE

yllacinahcemeradnaslootreporpehtevahuoyss

.slavretniecnanetniamreporpenimretedotnoitarepofosruohgol,esulaicremmocroF)3(

Reference manufacturer engine manual for
specific servicing instructions.

PAGE 22 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

MAINTENANCE (ENGINE)

MAINTENANCE

Perform the engine maintenance procedures as indicated below:

DAILY

■

Thoroughly remove dirt and oil from the engine and
control area. Clean or replace the air cleaner elements
as necessary. Check and retighten all fasteners as
necessary. Check the spring box and bellows for oil leaks.
Repair or replace as needed.

WEEKLY

■

Remove the fuel filter cap and clean the inside of the
fuel tank.

■

Remove or clean the filter at the bottom of the tank.

■

Remove and clean the spark plug (Figure 19), then adjust
the spark gap to 0.028 ~0.031 inch (0.6~0.7 mm). This unit
has electronic ignition, which requires no adjustments.

DANGER — Cleaning Solvents

DO NOT use gasoline as a cleaning solvent because

that would create a risk of fire or explosion.

ENGINE AIR CLEANER

1. Remove the air cleaner cover and foam filter element
as shown in Figure 21.

2. Tap the paper filter element (Figure 21) several times
on a hard surface to remove dirt, or blow compressed
air [not exceeding 30 psi (207 kPa, 2.1 kgf/cm
the filter element from the air cleaner case side.
brush off dirt. Brushing will force dirt into the fibers.
Replace the paper filter element if it is excessively
dirty.

3. Clean foam element in warm, soapy water or
nonflammable solvent. Rinse and dry thoroughly. Dip
the element in clean engine oil and completely squeeze
out the excess oil from the element before installing.

2

)] through

NEVER

Figure 19. Spark Plug Gap

ENGINE OIL

1. Drain the engine oil when the oil is
Figure 20.

2. Remove the oil drain bolt and sealing washer and allow
the oil to drain into a suitable container.

3. Replace engine oil with recommended type oil as listed in
Table 5. Engine oil capacity is 1.16 quarts (1.1 liters). DO
NOT overfill.

4. Install drain bolt with sealing washer and tighten securely.

Figure 20. Engine Oil (Draining)

warm

as shown in

Figure 21. Engine Air Cleaner

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 23

PUMP STORAGE

For storage of the pump for over 30 days, the following is
required:

■

Drain the fuel tank completely.

■

Run the engine until the fuel in the carburetor is
completely consumed.

■

Completely drain used oil from the engine crankcase
and fill with fresh clean oil, then follow the procedures
described in the engine manual for engine storage.

■

Remove the drain plug from the pump and drain out any
water from left in the housing.

■

Remove the pump cover and clean inside of pump
housing. Coat inside of pump housing with a light film of
oil to reduce corrosion. A spray can of oil works well for
this application.

■

Cover suction and discharge ports with duct tape to
prevent any foreign matter from falling into pump.

STORAGE

■

Cover pump and engine with plastic covering or
equivalent and store in a clean, dry place.

■

To protect the water cooled-seals, place one-half pint of
lubricating oil (new or used) through the discharge opening
on the pump and crank the engine several times. This
will prevent excessive corrosion and also keep the
mechanical seal lubricated.

PAGE 24 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

TROUBLESHOOTING (ENGINE)

MOTPMYS MELBORPELBISSOP NOITULOS

tratsottluciffiD

?egdirbgniebgulpnoitingI .metsysnoitingikcehC

GNITOOHSELBUORTENIGNE.7ELBAT

.)elbacnoisnethgihta

rewoP(.etingitonlliw TON

noisserpmoc(setingi )lamron .

noisserpmoc(setingi wol .)

gulpkrapstubelbaliavasileuF

elbaliavarewoP(.etingitonlliw

?srotalusni

gulpkrapstubelbaliavasileuF

.)elbacnoisnethgihtaelbaliava

?stisoped

gulpkrapsdnaelbaliavasileuF

gulpkrapsdnaelbaliavasileuF

?etauqedani

?)tsud

?nrowrednilyC .rednilycecalpeR

?esoolgulpkrapS .gulpkrapsnehgiT

?noitingitatisopednobraC .noitingiecalperronaelC

evitcefedoteudtiucrictrohS

?pagkrapsreporpmI .pagtcerrocehtotpaggulpkrapsteS

?hctiwspotstatiucrictrohS .evitcefedfihctiwspotsecalpeR.tiucrichctiwspotskcehC

?evitcefedliocnoitingI .liocnoitingiecalpeR

nobrachtiwdeggolcrelffuM

siytilauqleufdexiM

,retaw(etauqedaniesunileuF

?deggolcrenaelCriA .renaelcriaecalperronaelC

?teksagdaehrednilycevitcefeD .teksagdaehecalperrostlobdaehrednilycnethgiT

.srotalusniecalpeR

.relffumecalperronaelC

.erutximliootleufkcehC

.leufhserfhtiwecalperdnametysleufhsulF

yrotcafsitastonnoitarepO

?deggolcrenaelcriA .renaelcriaecalperronaelC

elbaliavarewophguonetoN

-ssimon,lamronnoisserpmoc(

.)gnirif

elbaliavarewophguonetoN

-ssim,lamronnoisserpmoc(

.)gnirif

?)tsud

.staehrevoenignE

?enilleufniriA .enilleufmorf)riaevomer(deelB

?reporpmirebmahc

.nobrac

taolfrotaerubracnilevelleuF

?rednilycnistisopednobraC rednilycecalperronaelC

?evitcefedliocnoitingI .leufhserfhtiwecalperdnametysleufhsulF

?strohsnetfogulpnoitingI .noitinginaelc,seriwnoitingiecalpeR

,retaw(etauqedaniesunileuF

ninoitsopednobracevissecxE

?rebmahcnoitsubmoc

htiwdeggolcrelffumrotsuahxE

?tcerrocnieulavtaehgulpkrapS .gulpkrapsepyttcerrochtiwgulpkrapsecalpeR

taolfrotaerubractsujdA

.leufhserfhtiwecalperdnametysleufhsulF

.esacknarcecalperronaelC

.relffumecalperronaelC

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 25

TROUBLESHOOTING (ENGINE/PUMP)

MOTPMYS MELBORPELBISSOP NOITULOS

yrotcafsitastonnoitarepO

?reporpmitnemtsujdaronrevoG .reveltcerrocotronrevogtsujdA

?evitcefedgnirpsronrevoG .noitingiecalperronaelC

.setautculfdeepslanoitatoR

?citarrewolfleuF .enilleufkcehC

)deunitnoC(GNITOOHSELBUORTENIGNE.7ELBAT

noitcushguorhtninekatriA

.enilnoitcuskcehC

?enil

.ylreporp

gnikrowtonretratslioceR

?trapgnitatornitsuD .ylbmessaretratsliocernaelC

?eruliafgnirpsgnirpS .gnirpslairpsecalpeR

GNITOOHSELBUORTPMUP.8ELBAT

MOTPMYSMELBORPELBISSOPNOITULOS

?gnisuohehtniretawgnimirphguonetoN.retawddA

eepsenignE.elttorhtesaercnI

.retawnoekattonseodpmuP

P .retawotresolcpmupevoM

dhcumooT

kaelretaW

?enigne

?wolootd

?deggulprenniartS.reniartsnaelC

?degamadesohnoitcuS spmalcdna,esohriaperroecal

?tropnoitcustakaelriA .delaesylreporpdnathgiterasgnittiftahtkcehC

?enilretawevobahgihootdetacolsipmu

?gnisuohpmupnignitcellocsirbeD.gnisuohpmupnaelC

.etulovdnarellepmineewtebecnatsi

dnapmupneewtebelohpeewtuogni

peR

.rellepmiecalperrosmihsgniddaybecnaraelctsujdA

"020..xaM-"600..niM

,steksagdnalaeslacinahcemfonoitidnockcehC

.gnisuohenignednadnepmupneewteb

?wolootdeepsenignE .deepselttorhtesaercnI

tawnisekatpmuP

.egrahcsid

cuS

.gnilpuoc

.tratsotdrah

onroelttil,re

?nrowetuloV/rellepmI ecalperrosmihsgniddaybecnaraelctsujdA

.telnitaskaelesohnoit

emaidesoH .esohecalperroesohretemaidrellamsesU

noyatstonseodegrahcsiD

sipmup:nruttonseodrellepmI

?hgihooterusserP .pmalclan

brodemmajrellepmI morfsirbeddnatridnaelcdnarevocpmupnepO

?enigneevitcefeD .launaMs'renwOenignEeeS

?deggulpyllaitrapreniartsnoitcuS.reniartsnaelC

?ylreporpdelaestoneraspmalc/sgnittiF

?egralootsiret

?dekcolbdnerodeknikesoH.esohkcehC

?dekcol

?gnidnibetulovdnarellepmI

etulov/rellepmi

noslaesartxepeeK(.pmalcddaroecalper,nethgiT

)pmup

oitiddadda,erusserpkcehC

.gnisuohedisni

orfmihsgnivomerybecnaraelctsujdA

.rellepmi

dnihebm

PAGE 26 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

NOTES

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 27

EXPLANATION OF CODE IN REMARKS COLUMN

The following section explains the different symbols and
remarks used in the Parts section of this manual. Use the help
numbers found on the back page of the manual if there are any
questions.

The contents and part numbers listed in the parts section are
subject to change
guarantee the availibility of the parts listed.

Sample Parts List:

NO. PART NO. PART NAME QTY. REMARKS

1 12345 BOLT ...................... 1 ...... INCLUDES ITEMS W/

2

*

2*12347 WASHER, 3/8 IN. ... 1 ......

3 12348 HOSE ................... A/R .... MAKE LOCALLY

4 12349 BEARING ............... 1 ...... S/N 2345B AND ABOVE

NO. Column

Unique Symbols - All items with same unique symbol

(

, #, +, %, or >) in the number column belong to the same

*

assembly or kit, which is indicated by a note in the “Remarks”
column.

Duplicate Item Numbers - Duplicate numbers indicate
multiple part numbers are in effect for the same general
item, such as different size saw blade guards in use or a
part that has been updated on newer versions of the same
machine.

When ordering a part that has more than one
item number listed, check the remarks column
for help in determining the proper part to order.

without notice

WASHER, 1/4 IN. .............

. Multiquip does not

NOT SOLD SEPARATELY
MQ-45T ONLY

*

QTY. Column

Numbers Used - Item quantity can be indicated by a

number, a blank entry, or A/R.
A/R (As Required) is generally used for hoses or other parts

that are sold in bulk and cut to length.
A blank entry generally indicates that the item is not sold

separately. Other entries will be clarified in the “Remarks”
Column.

REMARKS Column

Some of the most common notes found in the “Remarks”
Column are listed below. Other additional notes needed to
describe the item can also be shown.

Assembly/Kit

unique symbol will be included when this item is purchased.

Indicated by:

“INCLUDES ITEMS W/(unique symbol)”

Serial Number Break

number range where a particular part is used.

Indicated by:

“S/N XXXXX AND BELOW”
“S/N XXXX AND ABOVE”
“S/N XXXX TO S/N XXX”

Specific Model Number Use

used only with the specific model number or model number
variant listed. It can also be used to show a part is NOT
used on a specific model or model number variant.

Indicated by:

“XXXXX ONLY”
“NOT USED ON XXXX”

- All items on the parts list with the same

- Used to list an effective serial

- Indicates that the part is

PART NO. Column

Numbers Used - Part numbers can be indicated by a

number, a blank entry, or TBD.
TBD (To Be Determined) is generally used to show a part

that has not been assigned a formal part number at time of
publication.

A blank entry generally indicates that the item is not sold
separately or is not sold by Multiquip. Other entries will be
clarified in the “Remarks” Column.

PAGE 28 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

“Make/Obtain Locally”

purchased at any hardware shop or made out of available
items. Examples include battery cables, shims, and certain
washers and nuts.

“Not Sold Separately”

purchased as a separate item and is either part of an
assembly/kit that can be purchased, or is not available for
sale through Multiquip.

- Indicates that the part can be

- Indicates that an item cannot be

QP2H CENTRIFUGAL PUMP 1 TO 3 UNITS WITH
HONDA GX120U1PX2 ENG.

Qty. P/N Description

2 KIT204 ................ KIT, PUMP

2 0631211100 ........ DRAIN CAP, FLOODING

2 0480350300 ........ O-RING DRAIN CAP

1 9258000030 ........ IMPELLER

2 17210ZE0822 ..... ELEMENT AIR CLEANER DUAL

3 9807955855 ........ SPARK PLUG

3 28461ZH8003 ..... ROPE STARTER

1 17620Z0T305 ...... CAP, FUEL WITH GASKET

SUGGESTED SPARE PARTS

Part number on this Suggested Spare Parts
List may super cede/replace the P/N shown
in the text pages of this book.

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 29

PUMP ASSY.

PAGE 30 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

PUMP ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 GX120U1PX2 ENGINE, HONDA 1
2 7204100010 CASING 1
3 72040001600014 SUCTION COVER NPT2” 1
4 1889350351 CHECK VALVE 1
5 0181050820 BOLT SET WITH WASHER, LOCK M8X20 4
6 0191150520 BOLT 4
7% 0489242100 O-RING (CASING). DIA 2.4 X DIA. 210 1
8% 0489241780 O-RING (VOLUTE CASING) 1
9% 0803442320 MECHANICAL SEAL SILCON CARBIDE 1 SET
10% 0852831600 ADJUST LINER DIA. 0.3 THICKNESS 1~3
10% 0852851600 ADJUST LINER DIA. 0.5 THICKNESS 1~3
11 7204000030 IMPELLER 3/4”-16UNF 1
12 1808000130 VOLUTE CASING 1
13 1293330620 VOLUTE CASING PACKING 1
14 1211390610 CASING COVER PACKING 1
15 7204100020 CASING COVER 1
16 0181050825 BOLT SET WITH WASHER, LOCK 6

(DELIVERY ELBOW) M8 X 25
17 9246100090 DELIVERY ELBOW NPS2” 1
18 0181050820 BOLT SET WITH WASHER, LOCK 4
19 0631211100ASSY FLOODING CAP PF1” 1
20 0480350300 O-RING (FLOODING CAP) 1
21 0481310550 O-RING (DELIVERY ELBOW) 1
22 0631211100ASSY DRAIN CAP PF1” 1
23 0480350300 O-RING (DRAIN CAP) 1
24 7204214010P002 BASE 1
25 0105050840 BOLT (ENGINE) M8 X 40 4
26 0209150080 FLANGE NUT (ENGINE) M8 4
27 0723322030R CUSHION RUBBER 4
28 0209150060 FLANGE NUT (CUSHION RUBBER) M6 4
29 07904320200014 NIPPLE (DELIVERY) NPS2” X NPT2” 1
30 0481310550 O-RING (NIPPLE) 1
31 0742303050 STRAINER NPT2” 1
32 0451250080 WASHER, LOCK M8 4

33 KIT204 KIT, PUMP .................................................................. 1 .......... INCLUDES ITEMS W/%

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 31

HONDA GX120U1PX2 ENGINE — AIR CLEANER (DUAL) ASSY.

PAGE 32 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

HONDA GX120U1PX2 ENGINE — AIR CLEANER (DUAL) ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 16271ZE1000 GASKET, ELBOW 1

2 17210ZE0822 ELEMENT, AIR CLEANER (DUAL) ............. 1 ............... INCLUDES ITEMS W/%

3% 17218ZE0821 FILTER, OUTER 1
4 17230ZE0820 COVER, AIR CLEANER (DUAL) 1
5% 17323891000 GROMMET, AIR CLEANER 1
7+ 17238ZE0010 COLLAR, AIR CLEANER 2
8+ 17239ZE1000 COLLAR B, AIR CLEANER 1

9 17410ZE0030 ELBOW, AIR CLEANER .............................. 1 ............... INCLUDES ITEMS W/+

12 90325044000 WINGNUT, TOOL BOX SETTING 2
13 957010602000 BOLT, FLANGE 6X20 1
14 9405006000 NUT, FLANGE 6MM 2

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 33

HONDA GX120U1PX2 ENGINE — CAMSHAFT ASSY.

PAGE 34 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

HONDA GX120U1PX2 ENGINE — CAMSHAFT ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 14100ZE0812 CAMSHAFT ASSEMBLY ......................... 1 .................. INCLUDES ITEMS W/#

2 14410ZE0010 ROD, PUSH 2
3 14431ZE1000 ARM, VALVE ROCKER 2
4 14441ZE1010 LIFTER, VALVE 2
5 14451ZE1013 PIVOT, ROCKER ARM 2
6# 14568ZE1000 SPRING, WEIGHT RETURN 1
7 14711ZF0010 VALVE, IN. 1
8 14721ZH7810 VALVE, EX. (STELITE) 1
9 14751ZF1000 SPRING, VALVE 2
10 14771ZE1000 RETAINER, IN. VALVE SPRING 1
11 14773ZE1000 RETAINER, EX. VALVE SPRING 1
12 14781ZE1000 ROTATOR, VALVE 1
13 14791ZE0010 PLATE, PUSH ROD GUIDE 1
14 90012ZE0010 BOLT, PIVOT 8MM 2
15 90206ZE1000 NUT, PIVOT ADJ. 2

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 35

HONDA GX120U1PX2 ENGINE — CARBURETOR ASSY.

PAGE 36 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

HONDA GX120U1PX2 ENGINE — CARBURETOR ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1% 16010ZE1812 GASKET SET 1
2% 16011ZE0005 VALVE SET, FLOAT 1
3% 16013ZE0005 FLOAT SET 1
4% 16015ZE1811 CHAMBER SET, FLOAT 1
5% 16016ZH7W01 SCREW SET 1
6% 16024ZE1811 SCREW SET, DRAIN 1
7% 16028ZE0005 SCREW SET B 1
8% 16044ZE0005 CHOKE SET 1

9 16100ZH7W51 CARBURETOR ASSEMBLY, BE60B B ...... 1 ................ INCLUDES ITEMS W/%

10% 16124ZE0005 SCREW, THROTTLE STOP 1
11% 16166ZH7W50 NOZZLE, MAIN 1
12% 16173001004 GASKET, FUEL STRAINER CUP 1
13 16211ZE0000 INSULATOR, CARBURETOR 1
14 16212ZH7800 GASKET, INSULATOR 1
15 16220ZE1020 SPACER, CARBURETOR 1
16 16221ZH8801 GASKET, CARBURETOR 1

17 16610ZE1000 LEVER, CHOKE (STANDARD) ...................1 ................ INCLUDES ITEMS W/+

18% 16953ZE1812 LEVER, VALVE 1
19% 16954ZE1811 PLATE, LEVER SETTING 1
19% 16954ZE1812 PLATE, LEVER SETTING 1
20% 16956ZE1811 SPRING, VALVE LEVER 1
21% 16957ZE1812 GASKET, VALVE 1
22% 16967ZE1811 CUP, FUEL STRAINER 1
23% 93500030080G SCREW, PAN 3 X 8 2
24%+ 9430520122 PIN, SPRING 2 X 12 1
25 99101ZH80550 JET, MAIN #55 (OPTIONAL) 1
25 99101ZH80580 JET, MAIN #58 (OPTIONAL) 1
25% 99101ZH80600 JET, MAIN #60 1
26% 99204ZH00350 JET, MAIN #35 1

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 37

HONDA GX120U1PX2 ENGINE — CONTROL ASSY.

PAGE 38 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

HONDA GX120U1PX2 ENGINE — CONTROL ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 16500ZH7000 CONTROL ASSEMBLY ............................ 1.................. INCLUDES ITEMS W/#

4 16551ZE0010 ARM, GOVERNOR 1
5 16555ZE0000 ROD, GOVERNOR 1
6 16561ZE0020 SPRING, GOVERNOR 1
7 16562ZE0020 SPRING, THROTTLE RETURN 1
8# 16571ZH7000 LEVER, CONTROL 1
9# 16574ZE1000 SPRING, LEVER 1
10# 16575ZH8000 WASHER, CONTROL LEVER 1
12# 16578ZE1000 SPACER, CONTROL LEVER 1
13# 16580ZH7000 BASE, CONTROL 1
14# 16575ZH8000 WASHER, CONTROL LEVER 1
15# 16584883300 SPRING, CONTROL ADJUSTING 1
18 90013883000 BOLT, FLANGE 6X12 (CT200) 1
19 90015ZE5010 BOLT, GOVERNOR ARM 1
20 90022888010 BOLT, FLANGE 6X20 (CT200) 1
21# 90114SA0000 NUT, SELF- LOCK 6MM 1
24# 93500050250H SCREW, PAN 5X25 1
26 9405006000 NUT, FLANGE 6MM 1

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 39

HONDA GX120U1PX2 ENGINE — CRANKCASE COVER ASSY.

PAGE 40 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

HONDA GX120U1PX2 ENGINE — CRANKCASE COVER ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 11300ZE0641 COVER ASSY., CRANKCASE(U- TYPE) ........ 1 ........... INCLUDES ITEMS W/%

2 11381ZH7800 GASKET, CASE COVER 1

3 15600ZE1003 CAP ASSEMBLY, OIL FILLER ........................ 1........... INCLUDES ITEM W/+

4 15600ZG4003 CAP ASSEMBLY, OIL FILLER ........................ 1........... INCLUDES ITEM W/#

7+# 15625ZE1003 GASKET, OIL FILLER CAP 1
9 90015883000 BOLT, FLANGE 6X28 7
10% 91001878003 BEARING, RADIAL BALL 1
11% 91203ZE0013 OIL SEAL, 22X41X6 1
12 9430108140 PIN A, DOWEL 8X14 2

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 41

HONDA GX120U1PX2 ENGINE — CRANKSHAFT ASSY.

PAGE 42 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

HONDA GX120U1PX2 ENGINE — CRANKSHAFT ASSY.

NO. PART NO. PART NAME QTY. REMARKS

6 13310ZE0650 CRANKSHAFT, P-TYPE 1

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 43

HONDA GX120U1PX2 ENGINE — CYLINDER BARREL ASSY.

PAGE 44 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

HONDA GX120U1PX2 ENGINE — CYLINDER BARREL ASSY.

NO. PART NO. PART NAME QTY. REMARKS

2 12000ZH7425 CYLINDER BARREL ASSEMBLY ............ 1 .................. INCLUDES ITEMS W/#

3 15510ZE1033 SWITCH ASSEMBLY, OIL LEVEL 1

4 16510ZE1000 GOVERNOR ASSEMBLLY ....................... 1 .................. INCLUDES ITEMS W/%

5% 16511ZE1000 WEIGHT, GOVERNOR 2
6% 16512ZE1000 HOLDER, GOVERNOR WEIGHT 1
7% 16513ZE1000 PIN, GOVERNOR WEIGHT 2
8 16531ZE1000 SLIDER, GOVERNOR 1
9 16541ZE1000 SHAFT, GOVERNOR ARM 1
12 90131ZE1000 BOLT, DRAIN PLUG 2
13 90451ZE1000 WASHER, THRUST 6MM 1
14 90601ZE1000 WASHER, DRAIN PLUG 10.2MM 2
15 90602ZE1000? CLIP, GOVERNOR HOLDER 1
16# 91001878003 BEARING, RADIAL BALL 62/22 1
17# 91202ZE6013 OIL SEAL 22X35X6 1
18 91353671003 O- RING 13.5X1.5 (14 MM) 1
19 9405010000 NUT, FLANGE 10MM 1
20 9410106800 WASHER, FLAT 6MM 2
21 9425108000 PIN, LOCK 8MM 1
20 957010601200 BOLT, FLANGE 6X12 2

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 45

HONDA GX120U1PX2 ENGINE — CYLINDER HEAD ASSY.

PAGE 46 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

HONDA GX120U1PX2 ENGINE — CYLINDER HEAD ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 12210ZH7405 CYLINDER HEAD ............................................1 .......... INCLUDES ITEMS W/#

2 12204ZE1306 GUIDE, VALVE (OS) OPTIONAL 1

3 12205ZE1315 GUIDE, EX. VALVE (OS) OPTIONAL ............. 1 .......... INCLUDES ITEMS W/+

4+ 12216ZE5300 CLIP, VALVE GUIDE 1
5 12251ZH7800 GASKET, CYLINDER HEAD 1
6 12310ZE1020 COVER, HEAD 1
7 12391ZE1000 GASKET, CYLINDER HEAD COVER 1
8 15721ZH8000 TUBE, BREATHER 1
9 90013883000 BOLT, FLANGE 6X12 (CT200) 4
10 90043ZE1020 BOLT, STUD 6X109 2
11 90047ZE1000 BOLT, STUD 8X32 2
12 9430110160 PIN, A, DOWEL 10X16 2
14 957230805500 BOLT, FLANGE 8X55 4
15 9807955846 SPARK PLUG BPR5ES (NGK), OPTIONAL 1
15 9807956846 SPARK PLUG BPR5ES (NGK) 1
15 9807955855 PLUG, SPARK(W16EPR-U) (DENSO) 1
15 9807956855 PLUG, SPARK(W20 EPR-U) (DENSO) 1

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 47

HONDA GX120U1PX2 ENGINE — FAN COVER ASSY.

PAGE 48 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

HONDA GX120U1PX2 ENGINE — FAN COVER ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 1134371300 GROMET, ADJUSTING CABLE 1
2 19610ZE0000ZE COVER, FAN *NH1* BLACK 1
3 19611ZH7810 PLATE, SIDE(OIL ALERT) 1
4 90601ZH7013 CLIP, HARNESS 1
5 19630ZH7000 SHROUD 1
7 36100ZF6P81 SWITCH ASSEMBLY, ENGINE STOP 1
8 36101ZE1010 WIRE, STOP SWITCH 370MM 1
9 90013883000 BOLT, FLANG 6 X 12 (CT200) 6
10 90022888010 BOLT, FLANG 6 X 12 (CT200) 1

11 34150ZH7003 ALERT UNIT, OIL ....................................... 1................ S/N 3259629 AND ABOVE

13 957010600800 BOLT, FLANGE 6X8 ................................... 3................ S/N 3259269 AND ABOVE

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 49

HONDA GX120U1PX2 ENGINE — FLYWHEEL ASSY.

PAGE 50 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

HONDA GX120U1PX2 ENGINE — FLYWHEEL ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 13331357000 KEY, SPECIAL WOODRUFF 25X18 1
2 19511ZE0000 FAN, COOLING 1
4 28451ZH7801 PULLEY, STARTER 1
5 31100ZE0010 FLYWHEEL 1
7 90201878003 NUT, SPECIAL 14MM 1

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 51

HONDA GX120U1PX2 ENGINE — FUEL TANK ASSY.

PAGE 52 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

HONDA GX120U1PX2 ENGINE — FUEL TANK ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 16854ZH8000 RUBBER, SUPPORTER 107MM 1
2 16955ZE1000 JOINT, FUEL TANK 1
3 17510ZE0020ZD TANK, FUEL *NH1* (BLACK) 1

5 17620Z0T305 CAP COMP., FUEL FILLER (CHROME) .......... 1 .......... INCLUDES ITEMS W/%

6% 17631Z0T812 GASKET, FUEL FILLER CAP 1
11 91353671004 O- RING 14MM (NOK) 1
12 9405006000 NUT, FLANGE 6MM 2
13 950014514040 BULK HOSE, FUEL (4.5X3000) (4.5X140) 1
14 9500202080 CLIP, TUBE (B8) 2
15 90004ZH7003 BOLT, FLANGE 6X29 1

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 53

HONDA GX120U1PX2 ENGINE — IGNITION COIL ASSY.

PAGE 54 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

HONDA GX120U1PX2 ENGINE — IGNITION COIL ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 30500ZE1063 COIL ASSEMBLY, IGNITION 1
2 30700ZE1013 CAP ASSEMBLY, NOISE SUPPRESSOR 1
8 90121952000 BOLT, FLANGE 6X25 2

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 55

HONDA GX120U1PX2 ENGINE — MUFFLER ASSY.

PAGE 56 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

HONDA GX120U1PX2 ENGINE — MUFFLER ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 18310ZF1000 MUFFLER (STD) 1
3 18320ZF1H01 PROTECTOR, MUFFLER (STD BLACK) 1
7 18381ZH8800 GASKET, MUFFLER 1
10 90050ZE1000 SCREW, TAPPING 5X8 4
13 94001080000S NUT, HEX. 8MM 2

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 57

HONDA GX120U1PX2 ENGINE — PISTON ASSY.

PAGE 58 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

HONDA GX120U1PX2 ENGINE — PISTON ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 13010ZE6013 RING SET, PISTON (STANDARD) 1
1 13010ZK7V01 RING SET, PISTON (STANDARD) 1
1 13011ZE6013 RING SET, PISTON ( 0.25) 1
1 13011ZK7V01 RING SET, PISTON ( 0.25) 1
1 13012ZE6013 RING SET, PISTON ( 0.50) 1
1 13012ZK7V01 RING SET, PISTON ( 0.50) 1
1 13013ZE6013 RING SET, PISTON (0.75) 1
1 13013ZK7V01 RING SET, PISTON (0.75) 1
2 13101ZH7000 PISTON, STANDARD 1
2 13102ZH7000 PISTON, OS 0.25 1
2 13103ZH7000 PISTON, OS 0.50 1
2 13104ZH7000 PISTON, 0.75 1
3 13111ZE0000 PIN, PISTON 1

4 13200ZE0000 ROD ASSEMBLY, CONNECTING ................ 1 ............. INCLUDES ITEM W/#

5# 90001ZE1000 BOLT, CONNECTING ROD 2
6 90551ZE0000 CLIP, PISTON PIN 13MM 2

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 59

HONDA GX120U1PX2 ENGINE — RECOIL STARTER ASSY.

PAGE 60 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

HONDA GX120U1PX2 ENGINE — RECOIL STARTER ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 28400ZH8023ZB STARTER ASSY., RECOIL *NH1* (BLACK)......... 1 ............. INCLUDES ITEMS W/#

2# 28410ZH8003ZB CASE, RECOIL STARTER 1
3# 28421ZH8801 REEL, RECOIL STARTER 1
4# 28422ZH8801 RATCHET, STARTER 2
5# 28431ZH8801 GUIDE, RATCHET 1
6# 28433ZH8801 SPRING, FRICTION 1
7# 28441ZH8801 SPRING, RECOIL STARTER 1
8# 28442ZH8003 SPRING, RETURN 2
9# 28443ZH8801 KNOB, RECOIL STARTER 1
10# 28461ZH8003 ROPE, RECOIL STARTER 1
11# 28462ZH8003 SCREW, SETTING 1
12 90008ZE2003 BOLT, FLANGE 6X10 3

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 61

HONDA GX120U1PX2 ENGINE — GASKET ASSY.

PAGE 62 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

HONDA GX120U1PX2 ENGINE — GASKET ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1# 11381ZH7800 GASKET, CASE COVER 1
2# 12251ZH7800 GASKET, CYLINDER HEAD 1
3# 12391ZE1000 GASKET, CYLINDER HEAD COVER 1
4# 16212ZH7800 GASKET, INSULATOR 1
5# 16221ZH8801 GASKET, CARBURETOR 1
6# 18381ZH8800 GASKET, MUFFLER 1

7 06111ZH7405 GASKET KIT ............................................... 1 ............. INCLUDES ITEM W/#

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 63

HONDA GX120U1PX2 ENGINE — LABELS ASSY.

PAGE 64 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

HONDA GX120U1PX2 ENGINE — LABELS ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 87521ZH7030 EMBLEM 1
2 87516ZH7000 MARK OPERATOR CAUTION (ENGLISH) 1
3 87522ZH9000 LABEL, CAUTION 1
4 87528ZH7000 MARK, CHOKE (GRAY) 1
5 87532ZH7000 MARK, THROTTLE INDICATION 1

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 65

TERMS AND CONDITIONS OF SALE — PARTS

PAYMENT TERMS

Terms of payment for parts are net 30 days.

FREIGHT POLICY

All parts orders will be shipped collect or
prepaid with the charges added to the invoice.
All shipments are F.O.B. point of origin.
Multiquip’s responsibility ceases when a signed
manifest has been obtained from the carrier,
and any claim for shortage or damage must be
settled between the consignee and the carrier.

MINIMUM ORDER

The minimum charge for orders from Multiquip
is $15.00 net. Customers will be asked for
instructions regarding handling of orders not
meeting this requirement.

RETURNED GOODS POLICY

Return shipments will be accepted and credit
will be allowed, subject to the following provi­sions:

1. A Returned Material Authorization must
be approved by Multiquip prior to ship­ment.

2. To obtain a Return Material Authorization,
a list must be provided to Multiquip Parts
Sales that defines item numbers, quanti­ties, and descriptions of the items to be
returned.

a. The parts numbers and descriptions

must match the current parts price
list.

b. The list must be typed or computer

generated.

c. The list must state the reason(s) for

the return.

d. The list must reference the sales

order(s) or invoice(s) under which the
items were originally purchased.

e. The list must include the name and

phone number of the person request­ing the RMA.

3. A copy of the Return Material Authoriza­tion must accompany the return shipment.

4. Freight is at the sender’s expense. All
parts must be returned freight prepaid to
Multiquip’s designated receiving point.

5. Parts must be in new and resalable con-

6. The following items are not returnable:

7. The sender will be notified of any material

8. Such material will be held for five working

9. Credit on returned parts will be issued at

10. In cases where an item is accepted, for

11. Credit issued will be applied to future

PRICING AND REBATES

Prices are subject to change without prior
notice. Price changes are effective on a spe­cific date and all orders received on or after that
date will be billed at the revised price. Rebates
for price declines and added charges for price
increases will not be made for stock on hand
at the time of any price change.

Multiquip reserves the right to quote and sell
dition, in the original Multiquip package (if
any), and with Multiquip part numbers
clearly marked.

a. Obsolete parts. (If an item is in the

price book and shows as being re­placed by another item, it is obsolete.)

b. Any parts with a limited shelf life

(such as gaskets, seals, “O” rings,
and other rubber parts) that were pur­chased more than six months prior to
the return date.

c. Any line item with an extended dealer

net price of less than $5.00.

d. Special order items.
e. Electrical components.

f. Paint, chemicals, and lubricants.

g. Decals and paper products.

h. Items purchased in kits.

received that is not acceptable.

days from notification, pending instruc­tions. If a reply is not received within five
days, the material will be returned to the
sender at his expense.

dealer net price at time of the original
purchase, less a 15% restocking charge.

which the original purchase document
can not be determined, the price will be
based on the list price that was effective
twelve months prior to the RMA date.

purchases only.

direct to Government agencies, and to Original

Equipment Manufacturer accounts who use

our products as integral parts of their own

products.

SPECIAL EXPEDITING SERVICE

A $35.00 surcharge will be added to the invoice

for special handling including bus shipments,

insured parcel post or in cases where Multiquip

must personally deliver the parts to the carrier.

LIMITATIONS OF SELLER’S LIABILITY

Multiquip shall not be liable hereunder for

damages in excess of the purchase price of the

item with respect to which damages are

claimed, and in no event shall Multiquip be

liable for loss of profit or good will or for any

other special, consequential or incidental dam-

ages.

LIMITATION OF WARRANTIES

No warranties, express or implied, are made

in connection with the sale of parts or trade

accessories nor as to any engine not manufac-

tured by Multiquip. Such warranties made in

connection with the sale of new, complete units

are made exclusively by a statement of war-

ranty packaged with such units, and Multiquip

neither assumes nor authorizes any person to

assume for it any other obligation or liability

whatever in connection with the sale of its

products. Apart from such written statement of

warranty, there are no warranties, express,

implied or statutory, which extend beyond the

description of the products on the face hereof.

Effective: February 22, 2006

PAGE 66 — QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08)

NOTES

QP2H CENTRIFUGAL PUMP • OPERATION AND PARTS MANUAL — REV. #0 (08/04/08) — PAGE 67

OPERATION AND PARTS MANUAL

HERE’S HOW TO GET HELP

PLEASE HAVE THE MODEL AND SERIAL

NUMBER

UNITED STATES

Multiquip Corporate Office MQ Parts Department

18910 Wilmington Ave. Tel. [phone] Fax: [phone]
Carson, CA 90746 Fax [phone] Fax: [phone]
Contact: [e-mail]

Mayco Parts Warranty Department

800-306-2926 Fax: [phone], Ext. 279 Fax: [phone]
310-537-3700 Fax: [phone], Ext. 279

Service Department Technical Assistance

800-421-1244 Fax: [phone] Fax: [phone]
310-537-3700

MEXICO UNITED KINGDOM

MQ Cipsa Multiquip (UK) Limited Head Office

Carr. Fed. Mexico-Puebla KM 126.5 Tel: [phone] Hanover Mill, Fitzroy Street, Tel: [phone]
Momoxpan, Cholula, Puebla 72760 Mexico Fax: [phone] Ashton-under-Lyne, Fax: [phone]
Contact: [e-mail] Lancashire OL7 0TL

CANADA

Multiquip

4110 Industriel Boul. Tel: [phone]
Laval, Quebec, Canada H7L 6V3 Fax: [phone]

Contact: [e-mail]

ON-HAND

WHEN CALLING

Contact: [e-mail]

© COPYRIGHT 2008, MULTIQUIP INC.

Multiquip Inc and the MQ logo are registered trademarks of Multiquip Inc. and may not be used, reproduced, or altered without written permission. All other trademarks are
the property of their respective owners and used with permission.

This manual MUST accompany the equipment at all times. This manual is considered a permanent part of the equipment and should remain with the unit if resold.

The information and specifications included in this publication were in effect at the time of approval for printing. Illustrations, descriptions, references and technical data
contained in this manual are for guidance only and may not be considered as binding. Multiquip Inc. reserves the right to discontinue or change specifications, design or
the information published in this publication at any time without notice and without incurring any obligations.

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