Multiquip QP-204H User Manual
OPERATION AND PARTS MANUAL
MULTIQUIP
MODEL QP-204H
CENTRIFUGAL PUMP
(Honda Gasoline Engine)
Revision #3 (06/05/06)
To find the latest revision of this
publication, visit our website at:
www.multiquip.com
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
PAGE 2 — QP-204H CENTRIFUGAL PUMP — OPERATION AND PARTS MANUAL — REV. #3 (06/05/06)
NOTE PAGE
QP-204H CENTRIFUGAL PUMP — OPERATION AND PARTS MANUAL— REV. #3 (06/05/06) — PAGE 3
TABLE OF CONTENTS
QP-204H Gasoline
Powered Centrifugal
Pump
Proposition 65 Warning ............................................. 2
Table of Contents ...................................................... 4
Parts Ordering Procedures ....................................... 5
Safety Message Alert Symbols .............................. 6-7
Rules For Safe Operation ...................................... 8-9
Pump Specifications/Dimensions .............................10
Engine Specifications ...............................................11
General Information .................................................12
Pump Components .................................................. 13
Refueling .................................................................. 14
Basic Engine ............................................................15
Pre-Inspection (Engine) ...........................................16
Pre-Set-up (Pump) ................................................... 17
Initial Start-up (Engine) ...................................... 18-19
Maintenance (Pump) ......................................... 20-21
Maintenance (Engine)........................................ 22-23
Preparation for Long-Term Storage .........................24
Troubleshooting (Engine) .........................................25
Troubleshooting (Engine/Pump) ..............................26
Explanation Of Code In Remarks Column ...............28
Suggested Spare Parts ............................................29
Honda GX120K1PX2/
GX120U1PX2 Engines
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 Kit Assembly .......................................... 62-63
Labels ................................................................ 64-65
Terms and Condition Of Sale
— Parts .................... 66
Component Drawing
Pump Assy. ........................................................ 28-29
PAGE 4 — QP-204H CENTRIFUGAL PUMP — OPERATION AND PARTS MANUAL — REV. #3 (06/05/06)
NOTE
Specification and part number
are subject to change without
notice.
Effective: June 1st, 2005
Ordering parts has never been easier!
PARTS ORDERING PROCEDURES
Choose from three easy options:
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:
parts@multiquip.com.
To obtain an MQ Account, contact your
District Sales Manager for more information.
Use the
internet
on
Standard orders
complete part numbers.*
Fax
your order in and qualify for a 3% Discount
on
Standard orders
complete part numbers.*
Domestic (US) Dealers Call:
1-800-427-1244
and qualify for a 5% Discount
for all orders which include
for all orders which include
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
❒❒
NOTE
www.multiquip.com
Unless otherwise indicated by customer, all orders are treated as
within 24 hours. We will make every effort to ship
if received prior to 2PM PST.
WE ACCEPT ALL MAJOR CREDIT CARDS!
QP-204H CENTRIFUGAL PUMP — OPERATION AND PARTS MANUAL— REV. #3 (06/05/06) — PAGE 5
❒❒
❒
Specify Preferred Method of Shipment:
❒❒
✓
Fed Ex/UPS
■
■
■ Next Day
■
Stock Orders
✓ DHL
Priority One
Ground
Second/Third Day
✓
Tr uck
Standard Orders
Air Shipments
must be noted on fax or web order form.
the same day the order is received,
and will ship
QP-204H — SAFETY MESSAGE ALERT SYMBOLS
FOR YOUR SAFETY AND THE 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 Owner’s Manual has been
NOTE
Refer to the engine manufacturer’s instructions for data
relative to its safe operation.
Before using this centrifugal pump, ensure that the
operating individual has read and understands all
instructions in this manual.
SAFETY MESSAGE ALERT SYMBOLS
developed to provide complete
instructions for the safe and
efficient operation of the
Multiquip
Pump
QP-204H Centrifugal
.
Potential hazards associated with the operation of this
equipment will be referenced with Hazard Symbols which
appear throughout this manual, and will be referenced in
conjunction with Safety Message Alert Symbols.
HAZARD SYMBOLS
WARNING - Lethal Exhaust Gases
Engine exhaust gases contain
poisonous carbon monoxide. This gas
is colorless and odorless, and can
cause death if inhaled. NEVER operate
this equipment in a confined area or
enclosed structure that does not provide
ample free flow air.
WARNING - Explosive Fuel
Gasoline is extremely flammable, and its
vapors can cause an explosion if ignited.
DO NOT start the engine near spilled fuel
or combustible fluids.
The three (3) Safety Messages shown below will inform you
about potential hazards that could injure you or others. The
Safety Messages specifically address the level of exposure
to the operator, and are preceded by one of three words:
DANGER, WARNING, or CAUTION.
DANGERDANGER
DANGER
DANGERDANGER
You WILL be
if you DO NOT follow these directions.
WARNINGWARNING
WARNING
WARNINGWARNING
You CAN be KILLED or
you DO NOT follow these directions.
CAUTICAUTI
CAUTION
CAUTICAUTI
KILLED
or
SERIOUSLY INJURED
SERIOUSLY INJURED
if
DO NOT fill the fuel tank while the engine is running or
hot. DO NOT overfill tank, since spilled fuel could ignite if
it comes into contact with hot engine parts or sparks from
the ignition system. Store fuel in approved containers, in
well-ventilated areas and away from sparks and flames.
WARNING - Burn Hazards
Engine components can generate extreme
heat. To prevent burns, DO NOT touch
these areas while the engine is running or
immediately after operations. Never
operate the engine with heat shields or heat
guards removed.
CAUTION - Respiratory Hazard
ALWAYS wear approved
protection when required.
respiratory
You CAN be
these directions.
PAGE 6 — QP-204H CENTRIFUGAL PUMP — OPERATION AND PARTS MANUAL — REV. #3 (06/05/06)
INJURED
if you DO NOT follow
QP-204H — SAFETY MESSAGE ALERT SYMBOLS
CAUTION - Rotating Parts
NEVER operate equipment with covers,
or guards removed. Keep fingers, hands,
hair and clothing away from all moving
parts to prevent injury.
CAUTION - Accidental Starting
ALWAYS place the engine ON/OFF
switch in the OFF position, when the
pump is not in use.
CAUTION - Sight and Hearing Hazards
ALWAYS wear approved eye and
hearing protection.
CAUTION - Equipment Damage Messages
Other important messages are provided throughout this
manual to help prevent damage to your pump, other
property, or the surrounding environment.
This pump, other property, or the
NOTE
surrounding environment could
be damaged if you do not follow
instructions.
QP-204H CENTRIFUGAL PUMP — OPERATION AND PARTS MANUAL— REV. #3 (06/05/06) — PAGE 7
QP-204H — RULES FOR SAFE OPERATION
■
NEVER touch the hot exhaust manifold,
DANGERDANGER
DANGER
DANGERDANGER
Failure to follow instructions in this manual may lead to
serious injury or even death! This equipment is to be
operated by trained and qualified personnel only! This
equipment is for industrial use only.
The following safety guidelines should always be used when
pump
operating the
GENERAL SAFETY
■
DO NOT operate or service this equipment before
reading this entire manual.
■
This equipment should not be operated by persons under 18
years of age.
■
NEVER operate this equipment without proper protective
clothing, shatterproof glasses, steel-toed boots and other
protective devices required by the job.
:
muffler or cylinder. Allow these parts to
cool before servicing engine or plate
compactor.
■
High Temperatures – Allow the engine to cool before adding
fuel or performing service and maintenance functions. Contact
hot
with
■
The engine of this pump requires an adequate free flow of
cooling air.
narrow area where free flow of the air is restricted. If the air
flow is restricted it will
cause serious damage to
the pump or engine and
may cause injury to
people and property.
Remember the engine
gives off DEADLY gases.
components can cause serious burns.
NEVER!
operate the pump in any enclosed or
■
NEVER operate this equipment when not feeling
well due to fatigue, illness or taking medicine.
■
NEVER operate this equipment under the influence or drugs or
alcohol.
■
Whenever necessary, replace nameplate, operation and
safety decals when they become difficult read.
■
ALWAYS check the machine for loosened threads or bolts
before starting.
■
ALWAYS wear proper respiratory (mask) hearing and eye
protection equipment when operating the pump.
■
ALWAYS refuel in a well-ventilated area, away from sparks
and open flames.
■
ALWAYS use extreme caution when working with flammable
liquids. When refueling, stop the engine and allow it to cool.
DO NOT
could result from fuel vapors, or if fuel is spilled on a hot
engine.
■
NEVER operate the equipment in an
or near combustible materials. An
explosion or fire could result causing
severe
■
Topping-off to filler port is dangerous, as it
tends to spill fuel.
■
Refer to the
questions or information.
■
NEVER use accessories or attachments, which are not
recommended by Multiquip for this equipment. Damage to
the equipment and/or injury to user may result.
■
Manufacturer does not assume responsibility for any accident
due to equipment modifications.
■
NEVER run engine without air cleaner. Severe engine damage
may occur.
smoke around or near the machine. Fire or explosion
explosive atmosphere
bodily harm or even death.
Engine Owner's Manual
for engine technical
■
ALWAYS read, understand, and follow procedures in
Operator’s Manual before attempting to operate equipment.
PAGE 8 — QP-204H CENTRIFUGAL PUMP — OPERATION AND PARTS MANUAL — REV. #3 (06/05/06)
QP-204H — RULES FOR SAFE OPERATION
■
NEVER run engine without air cleaner. Severe engine damage
may occur.
■
ALWAYS read, understand, and follow procedures in
Operator’s Manual before attempting to operate equipment.
■
ALWAYS be sure the operator is familiar with proper safety
precautions and operation techniques before using pump.
■
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.
■
NEVER leave the pump unattended, turn off engine when
unattended.
■
Unauthorized equipment modifications will void all
warranties.
■
NEVER pump volatile, explosive, flammable or low flash
point fluids. These fluids could ignite or explode.
■
NEVER operate the pump in an
■
Before starting the pump, check that the clean-out cover is
explosive
atmosphere.
securely fasten.
■
ALWAYS ensure pump is on level ground before use.
■
Become familiar with the components of the pump before
operating.
■
ALWAYS replace any worn or damaged warning decals.
■
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 open the pump housing during operation or start the
pump with the clean-out cover removed. The rotating impeller
inside the pump can cut or sever objects caught in it.
Maintenance Safety:
■
■
■
■
■
■
■
TRANSPORTING
■
■
■
■
EMERGENCIES
■
■
■
NEVER lubricate components or attempt service on a
running machine.
ALWAYS allow the machine a proper amount of time to
cool before servicing.
Keep the machinery in proper running condition.
Fix damage to the machine 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.
ALWAYS shutdown engine before transporting.
Tighten fuel tank cap securely and close fuel cock to prevent
fuel from spilling.
Drain fuel when transporting pump over long distances or
bad roads.
ALWAYS tie down the pump during transportation by securing
the pump's guard frame with rope.
ALWAYS know the location of the
nearest
ALWAYS know the location of the nearest
In emergencies
fire extinguisher
always
nearest phone or
.
first aid kit
know the location of the
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 case of an
emergency.
■
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.
■
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.
■
In winter drain water from pump housing to prevent freezing.
QP-204H CENTRIFUGAL PUMP — OPERATION AND PARTS MANUAL— REV. #3 (06/05/06) — PAGE 9
■
NEVER disconnect any
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.
"emergency or safety devices"
.
QP-204H — SPECIFICATIONS/DIMENSIONS (PUMP)
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etunim/snoll
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.ni0.61X0.41x
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).gK62(.sbl75
16.0 IN.
(40 CM.)
14.6 IN.
(35 CM.)
19.5 IN.
(49.5 CM.)
Figure 1. QP-204H Dimensions
PAGE 10 — QP-204H CENTRIFUGAL PUMP — OPERATION AND PARTS MANUAL — REV. #3 (06/05/06)
QP-204H — SPECIFICATIONS/DIMENSIONS (ENGINE)
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QP-204H CENTRIFUGAL PUMP — OPERATION AND PARTS MANUAL— REV. #3 (06/05/06) — PAGE 11
QP-204H — GENERAL INFORMATION
APPLICATION
QP204H Centrifugal Pump
The
is designed to handle all 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 QP-204H pump use a 2-inch diameter
opening, which allows the pump to pump at a rate of
approximately 142 gallons/minute (gpm) or 538 liters/minute
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.
(lpm).
For example, in Flagstaff, Arizona where the elevation is
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
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.
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 an 4.0 horsepower air cooled
4-stroke, single cylinder
incorporates a low "
HONDA GX-120
Oil Alert Feature
gasoline engine that
"
leveLaeS)840.3(0.01)275.4(0.51)690.6(0.02)026.7(0.52
,2)086.2(08.8)320.4(2.31)463.5(6.71)507.6(0.22
Oil Alert Feature
In the event of
low oil
or
no oil
, the HONDA GX-120 engine has
000,6)301.2(09.6)961.3(4.01)602.4(8.31)372.5(3.71
a built-in oil alarm engine shut-down feature. In the event the oil
level is low the engine will automatically shut-down.
,3(000,01)737.1(07.5)126.2(06.8)474.3(4.11)853.4(3.41
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,
Table 4 shows percentage drops in performance as elevation
increases.
residential) as they have a limited solid handling 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
. The suction hose or pipe
solid stationary
connection should always be checked for tightness and leaks. A
small suction leak in the hose or fittings could prevent the pump
from priming.
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PAGE 12 — QP-204H CENTRIFUGAL PUMP — OPERATION AND PARTS MANUAL — REV. #3 (06/05/06)
QP-204H — PUMP COMPONENTS
Figure 2 shows a typical application using the QP-204H centrifugal pump. Please note that this pump is intended for the removal of
clean water.
Figure 2. QP-204H Pump Application
1. Pump – The model QP-204H 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 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.
6. Suction Port – Connect a 2-inch inlet hose to this port.
7. Suction Hose – Connect this flexible rubber hose to the
8. Drain Plug – Remove this plug to drain water from the
9. Strainer – Always attach a strainer to bottom side of the
Use two worm clamps to secure the hose.
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.
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.
QP-204H CENTRIFUGAL PUMP — OPERATION AND PARTS MANUAL— REV. #3 (06/05/06) — PAGE 13
DANGER - Fueling The Engine
If pump is placed in a truck bed with a plastic liner,
REMOVE pump from truck bed and place on
ground (Figure 3) to refuel. The possibility of
or
explosion
exists, due to static electricity.
fire
QP-204H — REFUELING
Figure 3. Pump Refueling
PAGE 14 — QP-204H CENTRIFUGAL PUMP — OPERATION AND PARTS MANUAL — REV. #3 (06/05/06)
QP-204H — BASIC ENGINE
Figure 4. Engine Controls and Components
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.
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.
CAUTION - 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.
2. Throttle Lever – Used to adjust engine RPM speed (lever
SLOW
advanced forward
FAST
).
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.
, lever back toward operator
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.
9. Muffler – Used to reduce noise and emissions.
CAUTION - Burn Hazard
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.
NOTE
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.
5. Fuel Valve Lever – OPEN to let fuel flow, CLOSE to stop
the flow of fuel.
QP-204H CENTRIFUGAL PUMP — OPERATION AND PARTS MANUAL— REV. #3 (06/05/06) — PAGE 15
10. Fuel Tank – Holds unleaded gasoline. For additional
information refer to engine owner's manual.
Pre-Inspection (Engine)
1. Read safety instructions at the
beginning of manual.
2. Clean the pump, removing dirt and
dust, particularly the engine
cooling air inlet, carburetor and air
cleaner.
QP-204H — PRE-INSPECTION (ENGINE)
3. Check the air filter for dirt and dust. If air filter is dirty, replace
air filter with a new one as required.
4. Check carburetor for external dirt and dust. Clean with dry
compressed air.
5. 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.
Diesel is extremely flammable, and its vapors
can cause an explosion if ignited. DO NOT
start the engine near spilled fuel or
combustible fluids. DO NOT smoke while
refueling. DO NOT attempt to refuel the pump
if the engine is
Fuel Check
Figure 6. Engine Oil Dipstick (Oil Level)
epyTliO.5elbaT
nosaeS erutarepmeT epyTliO
remmuS rehgiHroC°52 03-W01EAS
llaF/gnirpS C°01~C°52 02/03-W01EAS
retniW rewoLroC°0 01-W01EAS
WARNING - Explosive Fuel
Explosive Fuel
hot!
or
running
.
Figure 5. Engine Oil Dipstick (Removal)
3. Insert and remove the dipstick without screwing it into the filler
neck. Check the oil level shown on the dipstick.
4. If the oil level is low (Figure 6), fill to the edge of the oil filler
hole with the recommended oil type (Table 5). Maximum oil
capacity is 1.16 quarts (1.1 liters)
PAGE 16 — QP-204H CENTRIFUGAL PUMP — OPERATION AND PARTS MANUAL — REV. #3 (06/05/06)
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!
QP-204H — PRE-SETUP (PUMP)
Pre-Setup (Pump)
1. Read safety instructions at the
beginning of manual.
2. Place pump as near to water as
possible, on a firm flat, level surface.
3. 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.
5. The discharge hose is usually a
6. Make sure the
CAUTION - Pump Casing
Pump casing
must
be filled with water before using pump.
Otherwise pump will not be able to begin pumping.
WARNING - High Pressure
The strainer should be positioned so it will remain completely
DO NOT open
fill cap
if pump is hot!
Water inside may be under pressure.
under water
water for long periods can damage the pump.
The possibility exists of scalding,
resulting in severe bodily harm.
Suction and discharge hoses are
NOTE
available from Multiquip. Contact
your nearest dealer for more
information.
collapsible
hose, however if a thin-walled discharge hose is not available, a rigid suction hose can be substituted in its place.
suction strainer
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.
(Figure 2) is clean and
(thin-walled)
CAUTION - Strainer
. Running the pump with the strainer above
CAUTION - Flammable Fluids-Chemicals
DO NOT pump flammable fluids, corrosive chemicals or fluids
4. Check for
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.
Hoses and Clamps
1. Check that all hoses are
Make certain suction hose (Figure 2) does not have any air
leakage. Tighten hose clamps and couplings as required.
2. It is recommended that 2 clamps be used when securing the
suction hose to the inlet side (suction) of the pump.
3. Remember suction hoses must be
collapse when the pump is in operation.
4. Check that
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.
leaks
between pump and engine. If water is leaking
the
discharge
securely
hose (Figure 2) is not restricted.
attached to the pump.
rigid
enough not to
containing toxic substances. These fluids can create potentially
dangerous health and environmental hazards. Contact local
authorities for assistance.
CAUTION - Mechanical Seal
This pump uses a water-cooled
water from seeping into the engine. The passage of water
through the pump casing lubricates the seal and prevents it
from overheating.
in the casing as this will cause damage to the mechanical
seal.
NEVER!
operate the pump without water
mechanical seal
to prevent
QP-204H CENTRIFUGAL PUMP — OPERATION AND PARTS MANUAL— REV. #3 (06/05/06) — PAGE 17
QP-204H — INITIAL START-UP (ENGINE)
CAUTION - Read Manual
DO NOT attempt to operate the pump until
the Safety, General Information and
Inspection sections of this manual have
read and thoroughly understood
been
This section is intended to assist the operator with the
start-up
section be read carefully before attempting to use the pump in
the field.
Starting the Engine (
1. Place the engine
of the trash pump. It is extremely important that this
HONDA
engine)
fuel valve lever
position.
.
initial
(Figure 7) to the "ON"
3. Place the
if starting a
4. Place the
if starting a
choke lever
cold
Figure 9. Engine Choke Lever (Closed)
choke lever
warm engine
(Figure 9) in the "
engine.
(Figure 10) in the "
or the
CLOSED
OPEN
" position
" position
temperature is warm.
Figure 7. Engine Fuel Valve Lever (ON Position)
2. Move the
position, about 1/3 of the way toward the fast position.
Figure 8. Throttle Lever (1/3 Start Position)
throttle lever
(Figure 8) away from the slow
Figure 10. Engine Choke Lever (Open)
5. Place the
position.
Figure 11. Engine ON/OFF Switch (ON Position)
engine ON/OFF switch
(Figure 11) in the "
ON
"
PAGE 18 — QP-204H CENTRIFUGAL PUMP — OPERATION AND PARTS MANUAL — REV. #3 (06/05/06)
QP-204H — INITIAL START-UP (ENGINE)
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.
CAUTION - Maximum Engine Speed
ALWAYS run engine at
Stopping The Engine
Normal Shutdown
1. Move the throttle lever to the IDLE position (Figure 15) and
run the engine for three minutes at low speed.
Figure 12. Starter Grip
7. If the engine has started, and the choke lever was moved to
CLOSED
the
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
2. After the engine
“OFF” position (Figure 16).
full speed
Figure 15. Throttle Lever (Idle)
cools
, turn the engine ON/OFF switch to the
while pumping.
Figure 13. Choke Lever (Open)
8. Before the pump is placed into operation, run the engine for
several minutes. Check for fuel leaks, and noises that would
associate with a lose component.
To begin pumping, place the throttle lever (Figure 14) in the
9.
RUN" position
"
.
3. Place the
position.
Emergency Showdown
1. Move the throttle lever quickly to the
the engine ON/OFF switch in the
Figure 14. Throttle Lever (Run)
QP-204H CENTRIFUGAL PUMP — OPERATION AND PARTS MANUAL— REV. #3 (06/05/06) — PAGE 19
Figure 16. Engine ON/OFF Switch (OFF)
fuel shut-off lever
Figure 17. Fuel Valve Lever (OFF)
(Figure 17) in the OFF
IDLE
position, and place
OFF
position.
QP-204H — MAINTENANCE (PUMP)
Pump Vacuum Test
7. If the vacuum tester gauge indicates a reading
below
CAUTION - Pump Priming
DO NOT attempt to start the engine unless the pump has
previously been
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.
primed
the pump from running dry.
Pump Vacuum Tester
with water. Severe pump damage
(P/N 7000030) over
is not functioning correctly, and corrective action needs
to be taken.
8. To test the
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.
-20 in. Hg, it can then be assumed that the pump
flapper valve
, 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)
NOTE
translates into 25 feet of lift at
level
.
sea
PAGE 20 — QP-204H CENTRIFUGAL PUMP — OPERATION AND PARTS MANUAL — REV. #3 (06/05/06)
QP-204H — MAINTENANCE (PUMP)
CAUTION
DO NOT RUN PUMP
WITHOUT WATER.
PLACE VACUUM TESTER
OVER PUMP SUCTION PORT
DISCHARGE
PORT
NOTE
WATER HOSE
WATER
SOURCE
DIRECTION
OF WATER
FLOW
Pressure reading may vary
depending on altitude. See Tables 3
and 4.
-15
-10
-20
-40
ACCEPTABLE READING
SHOULD BE BETWEEN
-25 AND -20 IN. HG.
PUMP VACUUM
-25
-30
-60
-80
-100
kPa
in. Hg
WIKA
-20
R
25 IN. HG. TRANSLATES
-5
INTO 25 FEET OF LIFT
AT SEA LEVEL.
TESTER
Figure 18. Pump Vacuum Tester
QP-204H CENTRIFUGAL PUMP — OPERATION AND PARTS MANUAL— REV. #3 (06/05/06) — PAGE 21
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