OPERATION AND PARTS MANUAL
MODEL QP4TH
TRASH PUMP
(HONDA GX340K1QA2/GX340U1QA2/GX340UT2QA2
GASOLINE ENGINE)
Revision #3 (01/29/14)
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 — QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14)
NOTES
QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14) — PAGE 3
QP4TH Centrifugal Pump
Proposition 65 Warning ........................................... 2
Table Of Contents .................................................... 4
Parts Ordering Procedures ...................................... 5
Safety Information .............................................. 6-10
Specifications (Pump) ............................................ 11
Specifications (Engine) .......................................... 12
General Information ............................................... 13
Pump Components ................................................ 14
Basic Engine .......................................................... 15
Inspection (Engine) ................................................ 16
Setup ..................................................................... 17
Operation .......................................................... 18-19
Maintenance (Pump) ........................................ 20-21
Maintenance (Engine) ...................................... 22-24
Storage .................................................................. 25
Troubleshooting (Engine) ....................................... 26
Troubleshooting (Engine/Pump) ............................ 27
Explanation Of Code In Remarks Column............. 28
Suggested Spare Parts ......................................... 29
TABLE OF CONTENTS
Component Drawings
Pump Assembly ................................................ 30-33
Engine Service Parts ........................................ 34-35
Terms And Conditions Of Sale — Parts ................ 36
NOTICE
Specifications and part numbers are subject to change
without notice.
PAGE 4 — QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14)
PARTS ORDERING PROCEDURES
www.multiquip.com
Ordering parts has never been easier!
If you have an MQ Account, to obtain a Username
parts@multiquip.
To obtain an MQ Account, contact your
Effective:
, 2006
Choose from three easy options:
January 1
st
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 Parts
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.
and Password, E-mail us at:
com.
District Sales Manager for more information.
Use the internet and qualify for a 5% Discount
on Standard orders 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 should contact
their local Multiquip Representatives for
Parts Ordering information.
Note: Discounts Are Subject To Change
Note: Discounts Are Subject To Change
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
NOTICE
All orders are treated as Standard Orders and will
ship the same day if received prior to 3PM PST.
WE ACCEPT ALL MAJOR CREDIT CARDS!
QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14) — PAGE 5
❒ Specify Preferred Method of Shipment:
✓ UPS/Fed Ex ✓ DHL
■ Priority One ✓ Tr uc k
■ Ground
■ Next Day
■ Second/Third Day
SAFETY INFORMATION
Do not operate or service the equipment before reading
the entire manual. Safety precautions should be followed
at all times when operating this equipment.
Failure to read and understand the safety
messages and operating instructions could
result in injury to yourself and others.
SAFETY MESSAGES
The four safety messages shown below will inform you
about potential hazards that could injure you or others. The
safety messages specifi cally address the level of exposure
to the operator and are preceded by one of four words:
DANGER, WARNING, CAUTION
SAFETY 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.
DANGER
Indicates a hazardous situation which, if not avoided,
WILL result in DEATH or SERIOUS INJURY.
WARNING
Indicates a hazardous situation which, if not avoided,
COULD result in DEATH or SERIOUS INJURY.
CAUTION
Indicates a hazardous situation which, if not avoided,
COULD result in MINOR or MODERATE INJURY.
or NOTICE.
NOTICE
Addresses practices not related to personal injury.
PAGE 6 — QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14)
SAFETY INFORMATION
GENERAL SAFETY
PUMP SAFETY
pump volatile, explosive, fl ammable or low fl ash
The engine fuel exhaust gases contain poisonous carbon
monoxide. This gas is colorless and odorless, and can
The engine of this equipment requires an adequate free
operate this equipment in any
pump corrosive chemicals or water containing
toxic substances. These fl uids could create serious
health and environmental hazards. Contact local
emergency or safety devices.
These devices are intended for operator safety.
Disconnection of these devices can cause severe injury,
bodily harm or even death. Disconnection of any of these
CAUTION
NEVER operate this equipment without proper protective
clothing, shatterproof glasses, respiratory protection,
hearing protection, steel-toed boots and other protective
devices required by the job or city and state regulations.
NEVER operate this equipment when not
feeling well due to fatigue, illness or when
under medication.
NEVER operate this equipment under the infl uence of
drugs or alcohol.
NOTICE
This equipment should only be operated by trained and
qualifi ed personnel 18 years of age and older.
DANGER
NEVER
point fl uids. These fl uids could ignite or explode.
cause death if inhaled.
fl ow of cooling air. NEVER
enclosed or narrow area
where free fl ow of the air is
restricted. If the air fl ow is
restricted it will cause injury
to people and property and
serious damage to the
equipment or engine.
NEVER operate the equipment in an explosive
atmosphere or near combustible materials. An
explosion or fi re could result causing severe
bodily harm or even death.
WARNING
DANGEROUS
GAS FUMES
Whenever necessary, replace nameplate, operation and
safety decals when they become diffi cult read.
Manufacturer does not assume responsibility for any
accident due to equipment modifi cations. Unauthorized
equipment modifi cation 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.
ALWAYS know the location of the nearest
fi re extinguisher.
ALWAYS know the location of the nearest
fi rst aid kit.
ALWAYS know the location of the nearest phone or keep
a phone on the job site. Also, know the phone numbers
of the nearest ambulance, doctor and fi re department.
This information will be invaluable in the case of an
emergency.
NEVER
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 disconnect any
devices will void all warranties.
QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14) — PAGE 7
CAUTION
ENGINE SAFETY
NOTICE
run engine without an air fi lter or with a dirty air
fi lter. Severe engine damage may occur. Service air fi lter
add fuel to equipment if it is placed inside truck
bed with plastic liner. Possibility exists of explosion or
start the engine near spilled fuel or combustible
fl uids. Fuel is extremely fl ammable and its vapors can
refuel in a well-ventilated area, away from
use extreme caution when working with
fi ll the fuel tank while the engine is running
overfi ll tank, since spilled fuel could ignite if it
comes into contact with hot engine parts or sparks from
SAFETY INFORMATION
NEVER lubricate components or attempt service on a
running machine.
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.
NOTICE
ALWAYS fi ll 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 start the pump with the clean-out cover removed.
The rotating impeller inside the pump can cut or sever
objects caught in it. Before starting the pump, check that
the clean-out cover is securely fastened.
ALWAYS keep the machine in proper running condition.
NEVER
frequently to prevent engine malfunction.
NEVER tamper with the factory settings
of the engine or engine governor. Damage
to the engine or equipment can result
if operating in speed ranges above the
maximum allowable.
FUEL SAFETY
DANGER
DO NOT
fi re due to static electricity.
ALWAYS ensure pump is on level ground before use.
Fix damage to machine and replace any broken parts
immediately.
ALWAYS store equipment properly when it is not being
used. Equipment should be stored in a clean, dry location
out of the reach of children and unauthorized personnel.
WARNING
NEVER operate the engine with heat shields or
guards removed.
DO NOT remove the engine oil drain plug
while the engine is hot. Hot oil will gush
out of the oil tank and severely scald any
persons in the general area of the pump.
CAUTION
NEVER touch the hot exhaust manifold,
muffl er or cylinder. Allow these parts to cool
before servicing equipment.
DO NOT
cause an explosion if ignited.
ALWAYS
sparks and open fl ames.
ALWAYS
fl ammable liquids.
DO NOT
or hot.
DO NOT
the ignition system.
PAGE 8 — QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14)
SAFETY INFORMATION
Store fuel in appropriate containers, in well-ventilated
BATTERY SAFETY (ELECTRIC START ONLY)
CAUTION
NEGATIVE battery terminal
keep battery cables in good working condition.
allow any person or animal to stand underneath
Before lifting, make sure that the equipment parts (hook
and vibration insulator) are not damaged and screws are
Always make sure crane or lifting device has been
properly secured to the lifting bail (hook) of the
Tighten fuel tank cap securely and close fuel cock to
Use adequate lifting cable (wire or rope) of suffi cient
tie down equipment during transport by
areas and away from sparks and fl ames.
NEVER use fuel as a cleaning agent.
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.
DANGER
DO NOT drop the battery. There is a possibility that the
battery will explode.
DO NOT expose the battery to open fl ames,
sparks, cigarettes, etc. The battery contains
combustible gases and liquids. If these
gases and liquids come into contact with a
fl ame or spark, an explosion could occur.
WARNING
ALWAYS wear safety glasses when
handling the battery to avoid eye irritation.
The battery contains acids that can cause
injury to the eyes and skin.
Use well-insulated gloves when picking up
the battery.
ALWAYS keep the battery charged. If the battery is not
charged, combustible gas will build up.
ALWAYS disconnect the
before performing service on the equipment.
ALWAYS
Repair or replace all worn cables.
TRANSPORTING SAFETY
CAUTION
NEVER
the equipment while lifting.
NOTICE
not loose or missing.
equipment.
ALWAYS shutdown engine before transporting.
NEVER lift the equipment while the engine is running.
prevent fuel from spilling.
strength.
Use one point suspension hook and lift straight upwards.
DO NOT charge battery if frozen. Battery can explode.
When frozen, warm the battery to at least 61°F (16°C).
ALWAYS recharge the battery in a well-ventilated
environment to avoid the risk of a dangerous concentration
of combustible gases.
If the battery liquid (dilute sulfuric acid)
comes into contact with clothing or skin,
rinse skin or clothing immediately with
plenty of water.
If the battery liquid (dilute sulfuric acid) comes into
contact with eyes, rinse eyes immediately with plenty
of water and contact the nearest doctor or hospital to
seek medical attention.
QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14) — PAGE 9
DO NOT lift machine to unnecessary heights.
ALWAYS
securing the equipment with rope.
ENVIRONMENTAL SAFETY/DECOMMISSIONING
Decommissioning is a controlled process used to safely
retire a piece of equipment that is no longer serviceable.
If the equipment poses an unacceptable and unrepairable
safety risk due to wear or damage or is no longer cost
effective to maintain (beyond life-cycle reliability) and is to
be decommissioned (demolition and dismantlement),be
sure to follow rules below.
EMISSIONS INFORMATION
The gasoline engine used in this equipment has been
designed to reduce harmful levels of carbon monoxide
(CO), hydrocarbons (HC) and nitrogen oxides (NOx)
This engine has been certifi ed to meet US EPA Evaporative
Attempting to modify or make adjustments to the engine
emmission system by unauthorized personnel without
proper training could damage the equipment or create an
Additionally, modifying the fuel system may adversely affect
evaporative emissions, resulting in fi nes or other penalties.
The emission control label is an integral part of the emission
If a replacement emission label is needed, please contact
SAFETY INFORMATION
NOTICE
DO NOT pour waste or oil directly onto the ground, down
a drain or into any water source.
Contact your country's Department of
Public Works or recycling agency in your
area and arrange for proper disposal of
any electrical components, waste or oil
associated with this equipment.
When the life cycle of this equipment is over, remove
battery and bring to appropriate facility for lead
reclamation. Use safety precautions when handling
batteries that contain sulfuric acid.
When the life cycle of this equipment is over, it is
recommended that the trowel frame and all other metal
parts be sent to a recycling center.
Metal recycling involves the collection of metal from
discarded products and its transformation into raw
materials to use in manufacturing a new product.
Recyclers and manufacturers alike promote the process
of recycling metal. Using a metal recycling center
promotes energy cost savings.
NOTICE
contained in gasoline exhaust emissions.
emissions requirements in the installed confi guration.
unsafe condition.
Emission Control Label
system and is strictly controlled by regulation(s).
The label must remain with the engine for its entire life.
your authorized engine distributor.
PAGE 10 — QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14)
SPECIFICATIONS (PUMP)
Table 1. Specifications (Pump)
Model QP4TH
Type Trash Pump
Suction 4.0 in. (100 mm.)
Discharge Size 4.0 in. (100 mm.)
Pump
Dry Net Weight
Maximum Pumping
Capacity
555 gallons/minute
(2,100 liters/minute)
Max. Solids Diameter 1.57 in. (40 mm)
Max. Lift 25 ft. (7.62 meters)
Max. Head 92 ft. (28.0 m)
Max. Pressure 40 psi (275 kPa)
222 lbs. (100.5 Kg.)
25.0 IN.
(63.5 CM.)
28.1 IN.
(71.4 CM.)
27.9 IN.
(70.9 CM.)
Figure 1. QP4TH Dimensions
QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14) — PAGE 11
SPECIFICATIONS (ENGINE)
METERS
500
10
Table 2. Specifications (Engines)
Model
HONDA GX340K1QA2/
GX340U1QA2/GX340UT2QA2
Air-cooled 4 stroke, Single
Type
Cylinder, OHV,
Horizontal Shaft Gasoline
Engine
3.46 in. x 2.28 in.
(88 mm x 64 mm)
Engine
Bore x Stroke
Displacement 20.53 cu-in (337 cc)
Max Output 10.7 H.P.*/3,600 R.P.M.
Fuel Tank Capacity
Approx.1.62 U.S. Gallons
(6.1 Liters)
Fuel Unleaded Automobile Gasoline
Lube Oil Capacity 1.16 quarts (1.10 liters)
Speed Control Method Centrifugal Fly-weight Type
Starting Method Recoil Start
Dimension
(L x W x H)
Dry Net Weight
Engine power ratings are calculated by the individual engine manufacturer and the rating method may vary among engine manufacturers. Multiquip Inc. and its subsidiary companies
*
makes no claim, representation or warranty as to the power rating of the engine on this equipment and disclaims any responsibility or liability of any kind whatsoever with respect to the
accuracy of the engine power rating. Users are advised to consult the engine manufacturer’s owners manual and its website for specific information regarding the engine power rating.
15.0 x 17.7 x 17.4 in.
(380 x 450 x 443 mm)
69.4 lbs (31.5 Kg.)
TOTAL HEAD
30
25
20
15
U.SGALLONS
PER MINUTE
LITERS
PER MINUTE
Suction Line : 4 inch Discharge Line : 4 inch
FT.
100
90
80
70
60
50
40
30
20
5
10
0
0 100 200 300 400 500 600
0
1000 1500
23.3 FT
16.7 FT
10 FT
Figure 2. QP4TH Performance Curve
3.3 FT
2000
PAGE 12 — QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14)
GENERAL INFORMATION
APPLICATION
The Multiquip QP4TH Trash Pump is designed to be
used for dewatering applications. Both the suction and
discharge ports on the QP4TH trash pump use a 4-inch
diameter opening,which allows the pump to pump at a rate
of approximately 555 gallons/minute (gpm) or 2,100 liters/
minute (lpm).
TRASH PUMP
Trash pumps derive their name from their ability to handle
a greater amount of debris and solids than standard
centrifugal pumps. These pumps generally handle solids
up to 1/2 the size of the discharge opening making them
less likely to clog. Also trash pumps are capable of handling
water with 25% solids by weight.
The advantage of using a trash pump is that it can be
quickly and easily disassembled in the field "without tools"
and easily cleaned when clogged.
POWER PLANT
This trash pump is powered by a 10.7 horsepower air cooled
4-stroke, single cylinder HONDA GX340 gasoline engine
that incorporates a low “Oil Alert Feature.”
OIL ALERT FEATURE
In the event of low oil or no oil, the HONDA GX340 engine
has a built-in oil alarm engine shut-down feature. In the
event the oil level is low the engine will automatically
shutdown.
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
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.
Table 3. Suction Lift at Various Elevations
Altitude
Feet
(Meters)
Sea Level 10.0 (3.048) 15.0 (4.572) 20.0 (6.096) 25.0 (7.620)
2,000 (610) 8.80 (2.680) 13.2 (4.023) 17.6 (5.364) 22.0 (6.705)
4,000 (1,219) 7.80 (2.377) 11.7 (3.566) 15.6 (4.754) 19.5 (5.943)
6,000 (1,829) 6.90 (2.103) 10.4 (3.169) 13.8 (4.206) 17.3 (5.273)
8,000 (2,438) 6.20 (1.889) 9.30 (2.834) 12.4 (3.779) 15.5 (4.724)
10,000 (3,048) 5.70 (1.737) 8.60 (2.621) 11.4 (3.474) 14.3 (4.358)
Table 4 shows percentage drops in performance as
elevation increases.
Table 4. Performance Loss at Various Elevations
Altitude
Feet (Meters)
Sea Level 100% 100%
2,000 (610) 97% 95%
4,000 (1,219) 95% 91%
6,000 (1,829) 93% 87%
8,000 (2,438) 91% 83%
10,000 (3,048) 88% 78%
Suction Lift in Feet (Meters)
Discharge Flow Discharge Head
The pump should always be placed on solid stationary
ground in a level position.
NEVER place the pump on soft soil. The suction hose or
pipe connection should always be checked for tightness
and leaks. A small suction leak in the hose or fittings could
prevent the pump from priming.
QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14) — PAGE 13
PUMP COMPONENTS
Figure 3 shows a typical application using the QP4TH centrifugal pump. Please note that this pump is intended for the
removal of clean water.
1
2
3
10
11
12
4
3
6
8
9
5
4
7
NOTE:
CONTACT YOUR NEAREST
MULTIQUIP DEALER FOR
QUICK DISCONNECT HOSES
AND FITTINGS.
4
Figure 3. QP4TH Pump Application
1. Pump — The model QP4TH is a 4-inch trash pump
aused in general dewatering applications.Typical
dewatering applications consist of manholes, septic
tanks, fast and slow seepage ditch water, silt water,
mud water and muck water.
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.
3. Discharge Port — Connect a 4-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 a 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 3-inch inlet hose to this port
Use two worm clamps to secure the hose.
7. Suction Hose — Connect this flexible rubber hose to
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.
8. Clean-out Cover Handles — To gain access to the
pump's clean-out area, grip both handles, then pull to
remove cover. Make sure both locking knobs have been
released before attempting to remove clean-out cover.
9. Drain Plug — Remove this plug to drain water from
the pump.
10. Clean-out Cover — Remove cover to gain access to
the clean-out area.
11. Locking Knobs — Turn both knobs clockwise to
secure clean-out cover, turn counter-clockwise to
release cover.
12. Strainer — Always attach a strainer to bottom side of
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.
PAGE 14 — QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14)
Figure 4. Engine Controls and Components
BASIC ENGINE
INITIAL SERVICING
The engine (See 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
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 advanced forward SLOW, lever back toward
operator FAST).
3. Engine ON/OFF Switch — ON position permits engine
starting, OFF position stops engine operations.
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.
NOTICE
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.
WARNING
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.
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.
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.
QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14) — PAGE 15
10. Fuel Tank — Holds unleaded gasoline. For additional
information refer to engine owner's manual.
INSPECTION (ENGINE)
UPPER LIMIT
LOWER LIMIT
CAUTION
DO NOT attempt to operate the pump
untilthe Safety Information, General
Information and Inspection sections
of this manual have been read and
thoroughly understood.
BEFORE STARTING
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.
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
(See Figure 5) and wipe clean.
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 (See 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).
Figure 6. Engine Oil DipStick (Oil Level
Table 5. Oil Type
Season Temperature Oil Type
Summer 25°C or Higher SAE 10W-30
Spring/Fall 25°C~10°C SAE 10W-30/20
Winter 0°C or Lower SAE 10W-10
DANGER
Motor fuels are highly flammable and can
be dangerous if mishandled. DO NOT
smoke while refueling. DO NOT attempt
to refuel the pump if the engine is hot!
or running.
Fuel Check
1. Remove the gasoline cap located on top of fuel tank.
Figure 5. Engine Oil Dipstick (Removal
PAGE 16 — QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14)
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!
.
SETUP
1. Place pump as near to water as possible, on a firm
flat, level surface.
2. To prime pump, remove fill cap (See Figure 3) 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 securely attached to the pump. Make
certain suction hose (See Figure 3) 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.
5. Remember suction hoses must be rigid enough not to
collapse when the pump is in operation.
6. Check that the discharge hose (See Figure 3) is not
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.
NOTICE
Suction and discharge hoses are available from
Multiquip. Contact your nearest dealer for more
information.
7. The discharge hose is usually a collapsible
(thin-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 suction strainer (See Figure 3) is
clean and 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 in
to the pump.
CAUTION
The strainer should be positioned so it will remain
completely under water. Running the pump with the
strainer above water for long periods can damage the
pump.
QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14) — PAGE 17
OPERATION
CAUTION
DO NOT attempt to start the engine unless the pump
has previously been primed with water. Severe pump
damage will occur if pump has not been primed.
STARTING THE ENGINE
1. Place the engine fuel valve lever (See Figure 7) to the
ON position.
Figure 7. Engine Fuel Valve Lever (ON Position)
2. Move the throttle lever (See Figure 8) away from the
slow position, about 1/3 of the way toward the fast
position.
4. Place the choke lever (See Figure 10) in the OPEN
position if starting a warm engine or the temperature
is warm.
Figure 10. Engine Choke Lever (Open)
5. Place the engine ON/OFF switch (See Figure 11) in
the ON position.
Figure 8. Throttle Lever (1/3 Start Position
3. Place the choke lever (See Figure 9) in the CLOSED
position if starting a cold engine.
Figure 9. Engine Choke Lever (Closed)
Figure 11. Engine ON/OFF Switch (ON Position)
6. Grasp the starter grip (See 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 position to start the engine,
gradually move the choke lever to the OPEN position
(Figure 13) as the engine warms up. If the engine has
not started repeat steps 1 through 6.
PAGE 18 — QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14)
Figure 13. Choke Lever (Open)
8. Before the pump is placed in to operation, run the
engine for several minutes. Check for fuel leaks, and
noises that would associate with a lose component.
OPERATION
STOPPING THE ENGINE
Normal Shutdown
1. Move the throttle lever to the IDLE position
(See Figure 14) and run the engine for three minutes
at low speed.
Figure 15. Throttle Lever (Idle)
9. To begin pumping, place the throttle lever (See
Figure 13) in the RUN position. If water is not flowing
out of the discharge port, turn off the engine and check
for and clear any obstructions within the suction hose.
Figure 14. Throttle Lever (Run)
WARNING
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 deadhead 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.
2. After the engine cools, turn the engine ON/OFF switch
to the OFF position (See Figure 15).
Figure 16. Engine ON/OFF Switch (OFF)
3. Place the fuel shut-off lever (See Figure 16) in the
OFF position
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.
CAUTION
ALWAYS run engine at full speed while pumping.
QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14) — PAGE 19
Figure 17. Fuel Valve Lever (OFF)
Emergency Shutdown
1. Move the throttle lever quickly to the IDLE position, and
place the engine ON/OFF switch in the OFF position.
MAINTENANCE (PUMP)
PUMP VACUUM TEST
CAUTION
DO NOT attempt to start the engine unless the pump
has previously been primed with water. Severe pump
damage will occur if pump has not been primed.
To perform the pump vacuum test do the following:
1. Remove the pump fill cap (See Figure 3), 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, 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 the pump from running dry.
4. Place the Pump Vacuum Tester (P/N 7000030) over the
pump suction (inlet) opening (See 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.
ADJUSTING IMPELLER CLEARANCE
1. If it is necessary to replace impeller or volute, be sure
clearance between impeller and volute is adjusted
2. The impeller should be as close to the volute as
possible without rubbing against it. Clearance is
adjusted by adding or removing shims from behind
the impeller.
3. Check clearance between impeller and insert by slowly
pulling starter rope to turn impeller.
NOTICE
It is important not to remove too many shims or the
clearance between the impeller and volute will become
too wide and pump performance will be reduced.
Remember as the impeller wear down, additional shims
may be required to maintain the clearance between the
impeller and insert.
4. Check the impeller every six months for wear, and for
clearance between the impeller face and the volute.
Also check the shaft seal for wear, as well as the shaft
sleeve.
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 reseat 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.
NOTICE
25 in. Hg (inches of mercury) translates into 25 feet of
lift at sea level.
7. If the vacuum tester gauge indicates a reading below
-20 in. Hg, it can then be assumed that the pump is
not functioning correctly, and corrective action needs
to be taken.
8. To test the flapper valve, shutdown the engine. 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.
PUMP CLEANING
After pumping water containing large amounts of dirt and
debris, perform the following:
1. Remove the drain plug from the pump housing
(Figure 3) and drain any water left in the pump.
2. Loosen the two locking hand knobs (turn
counterclockwise) and remove clean-out cover.
3. Clean and remove dirt, debris from pump casing.
Inspect impeller and volute for wear. Replace any
damaged or worn parts.
CAUTION
The impeller may develop sharp edges. Use extreme
care when cleaning around the impeller to prevent
being cut..
PAGE 20 — QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14)
MAINTENANCE (PUMP)
Figure 18. Pump Vacuum Tester
QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14) — PAGE 21
MAINTENANCE (ENGINE)
ENGINE MAINTENANCE
Perform engine maintenance procedures as referenced by Table 6 below:
Table 6. Engine Maintenance Schedule
First
Description (3) Operation Before
Engine Oil
Air Cleaner
All Nuts and
Bolts
Spark Plug
Cooling Fins CHECK X
Spark Arrester CLEAN X
Fuel Tank CLEAN X
Fuel Filter CHECK X
Idle Speed CHECK-ADJUST X (2)
Valve Clearance CHECK-ADJUST X (2)
Fuel lines CHECK Every 2 years (replace if necessary) (2)
CHECK X
CHANGE X
CHECK X
CHANGE X (1)
Re-tighten If
Necessary
CHECK-CLEAN X
REPLACE X
X
Month or
10 hrs
Every 3
Months or
25 hrs
Every 6
Months or
50 hrs
Every
Year or
100 hrs
Every 2
Years or
200 hrs
1. Service more frequently when used in DUSTY areas.
2. These items should be serviced by your service dealer, unless you have the proper tools and are mechanically
proficient. Refer to the HONDA shop Manual for service procedures.
3. For commercial use, log hours of operation to determine proper maintenance intervals.
NOTICE
Refer to manufacturer engine manual for specific
servicing instructions.
PAGE 22 — QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14)
MAINTENANCE (ENGINE)
DAILY
1. 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
1. Remove the fuel filter cap and clean the inside of the
fuel tank.
2. Remove or clean the filter at the bottom of the tank.
3. Remove and clean the spark plug (See 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
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 (See 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
cleaner case side. NEVER 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
non-flammable 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 the filter element from the air
Figure 19. Spark Plug Gap
ENGINE OIL
1. Drain the engine oil when the oil is warm as shown
in 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 over fill.
4. Install drain bolt with sealing washer and tighten
securely.
BLOW COMPRESSED
AIR FROM THE
INSIDE OUT
Figure 21. Engine Air Cleaner
Figure 20. Engine Oil (Draining)
QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14) — PAGE 23
MAINTENANCE (ENGINE)
SCREEN
BRUSH
SPARK ARRESTER CLEANING
Clean the spark arrester every 6 months or 100 hours.
1. Remove the 4 mm screw (3) from the exhaust deflector,
then remove the deflector. See Figure 22.
2. Remove the 5 mm screw (4) from the muffler protector,
then remove the muffler protector.
3. Remove the 4 mm screw from the spark arrester, then
remove the spark arrester.
4. Carefully remove carbon deposits from the spark
arrester screen (Figure 23) with a wire brush.
WIRE
SPARK
ARRESTER
Figure 23. Cleaning The Spark Arrester
5. If the spark arrester is damaged and has breaks or
holes, replace with a new one.
6. Reinstall the spark arrester and muffler protector in
reverse order of disassembly.
Figure 22. Spark Arrester Removal
PAGE 24 — QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14)
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 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.
QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14) — PAGE 25
Symptom Possible Problem Solution
Difficult to start
TROUBLESHOOTING (ENGINE)
Table 7. Engine Troubleshooting
Ignition plug being bridge? Check ignition system.
Fuel is available but spark plug will not
ignite. (Power available at high tension
cable).
Fuel is available but spark plug will not
ignite. (Power NOT available at high
tension cable).
Fuel is available and spark plug ignites
(compression normal).
Fuel is available and spark plug ignites
(compression low).
Operation not satisfactory
Carbon deposit at ignition? Clean or replace ignition.
Short circuit due to defective insulators? Replace insulators.
Improper spark gap?
Short circuit at stop switch?
Ignition coil defective? Replace ignition coil.
Muffler clogged with carbon deposits? Clean or replace muffler.
Mixed fuel quality is inadequate? Check fuel to oil mixture.
Fuel in use inadequate (water, dust)?
Air Cleaner clogged? Clean or replace air cleaner.
Defective cylinder head gasket?
Cylinder worn? Replace cylinder.
Spark plug loose? Tighten spark plug.
Air cleaner clogged? Clean or replace air cleaner.
Set spark plug gap to the
correct gap.
Check stop switch circuit.
Replace stop switch if defective.
Flush fuel system and replace
with fresh fuel.
Tighten cylinder head bolts or
replace head gasket.
Not enough power available
(compression normal, no miss-firing).
Not enough power available
(compression normal, miss-firing).
Engine overheats.
PAGE 26 — QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14)
Air in fuel line? Bleed (remove air) from fuel line.
Fuel level in carburetor float chamber
improper?
Carbon deposits in cylinder? Clean or replace cylinder.
Ignition coil defective?
Ignition plug often shorts?
Fuel in use inadequate (water, dust)?
Excessive carbon deposition in
combustion chamber?
Exhaust or muffler clogged with carbon. Clean or replace muffler.
Spark plug heat value incorrect?
Adjust carburetor float.
Flush fuel system and replace
with fresh fuel.
Replace ignition wires, clean
ignition.
Flush fuel system and replace
with fresh fuel.
Clean or replace crankcase.
Replace spark plug with correct
type spark plug.
Symptom Possible Problem Solution
Operation not satisfactory
TROUBLESHOOTING (ENGINE/PUMP)
Table 7. Engine Troubleshooting
Governor adjustment improper? Adjust governor to correct lever.
Rotational speed fluctuates.
Recoil starter not working properly.
Symptom Possible Problem Solution
Not enough priming water in the housing? Add water.
Engine speed too low? Increase throttle.
Strainer plugged? Clean strainer.
Suction hose damaged? Replace or repair hose, and clamps.
Air leak at suction port?
Pump does not take
on water.
Pump is located too high above water line? Move pump closer to water.
Debris collecting in pump housing? Clean pump housing.
Too much distance between impeller
and volute.
Governor spring defective? Clean or replace ignition.
Fuel flow erratic? Check fuel line.
Air taken in through suction line? Check suction line.
Dust in rotating part? Clean recoil starter assembly.
Spring failure? Replace spiral spring.
Table 8. Pump Troubleshooting
Check that fittings are tight and properly
sealed.
Adjust clearance by adding shims or
replace impeller. Min. .006" - Max. .020".
Pump takes in water, little or
no discharge.
Suction hose leaks at inlet.
Discharge does not stay on
coupling.
Impeller does not turn:
pump is hard to start.
Water leaking out weep hole between pump
and engine?
Engine speed too low? Increase throttle speed.
Suction strainer partially plugged? Clean strainer.
Impeller/Volute worn?
Fittings/clamps are not sealed properly?
Hose diameter is too large?
Pressure too high? Check pressure, add additional clamp.
Hose kinked or end blocked? Check hose.
Impeller jammed or blocked?
Impeller and volute binding?
Defective engine? See Engine Owner's Manual.
Check condition of mechanical seal and
gaskets, between pump end and engine
housing.
Adjust clearance by adding shims or
replace impeller/volute.
Tighten, replace or add clamp. (Keep
extra seals on pump).
Use smaller diameter hose or replace
hose.
Open pump cover and clean dirt and
debris from inside housing.
Adjust clearance by removing shim from
behind impeller.
QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14) — 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.
SAMPLE PARTS LIST
NO.
1 12345 BOLT
2% WASHER, 1/4 IN.
2% 12347 WASHER, 3/8 IN.
3 12348 HOSE
4 12349 BEARING
NO. Column
PART NO. Column
QTY. Column
— Item quantity can be indicated by a
A/R (As Required) is generally used for hoses or other
A blank entry generally indicates that the item is not sold
separately. Other entries will be clarifi ed in the “Remarks”
Some of the most common notes found in the “Remarks”
Column are listed below. Other additional notes needed
— All items on the parts list with the
same unique symbol will be included when this item is
— Used to list an effective serial
— Indicates that the part
is used only with the specifi c model number or model
number variant listed. It can also be used to show a
part is NOT used on a specifi c model or model number
— Indicates that the part can
be purchased at any hardware shop or made out of
available items. Examples include battery cables, shims,
— Indicates that an item cannot
be purchased as a separate item and is either part of an
assembly/kit that can be purchased, or is not available
Numbers Used
number, a blank entry, or A/R.
NOTICE
The contents and part numbers listed in the parts
section are subject to change without notice. Multiquip
does not guarantee the availability of the parts listed.
PART NO. PART NAME QTY. REMARKS
.....................1 .....INCLUDES ITEMS W/%
..........NOT SOLD SEPARATELY
..1 .....MQ-45T ONLY
..................A/R ...MAKE LOCALLY
..............1 .....S/N 2345B AND ABOVE
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, which 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.
parts that are sold in bulk and cut to length.
Column.
REMARKS Column
to describe the item can also be shown.
Assembly/Kit
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”
NOTICE
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.
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 the 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 clarifi ed in the “Remarks” Column.
Specifi c Model Number Use
variant.
Indicated by:
“XXXXX ONLY”
“NOT USED ON XXXX”
“Make/Obtain Locally”
and certain washers and nuts.
“Not Sold Separately”
for sale through Multiquip.
PAGE 28 — QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14)
SUGGESTED SPARE PARTS
QP4TH TRASH PUMP WITH HONDA GX340K1QA2/GX340U1QA2/GX240UT2QA2 ENGINES
1 to 3 units
Qty. P/N Description
1............1466040030 .................. IMPELLER
1............0811885433 .................. MECHANICAL SEAL SLEEVE
2............0803442930 .................. MECHANICAL SEAL
1............1401350350 .................. CHECK VALVE
4............0631211159 .................. DRAIN CAP
4............4660002200002 ............ DRAIN COVER KNOB
1............0742214100 .................. STEEL STRAINER
5............17210ZE3505 ............... ELEMENT, AIR CLEANER, GX340K1QA2
5............17210ZE3010 ............... ELEMENT, AIR CLEANER, GX340U1QA2/GX240UT2QA2
5............9807956846 .................. SPARK PLUG, GX340K1QA2
5............9807955846 .................. SPARK PLUG, GX340U1QA2/GX240UT2QA2
1............17620ZH7023 ............... CAP, FUEL TANK, GX340K1QA2
1............17620Z4H020 ............... CAP, FUEL TANK , GX340U1QA2/GX240UT2QA2
2............17672ZE2W01 .............. FILTER, FUEL,GX340K1QA2
2............17672Z4H020 ............... FILTER, FUEL, GX340U1QA2/GX240UT2QA2
1............28462ZE3W01 .............. ROPE, RECOIL STARTER
NOTICE
Part numbers on this Suggested Spare Parts list may
supersede/replace the part numbers shown in the
following parts lists.
QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14) — PAGE 29
PUMP ASSEMBLY
PAGE 30 — QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14)
PUMP ASSEMBLY
NO. PART NO. PART NAME QTY. REMARKS
1 14660600100002 CASING 1
2 14660600200002 CASING COVER....................................................1............OCTOBER 2007 AND BELOW
2 14660600210002 CASING COVER....................................................1............NOVEMBER 2007 AND ABOVE
3 14660000900002 SUCTION COVER, NPT 4" 1
4 14660000900002 DELIVERY COVER, NPT 4" 2
5 14660601700002 DRAIN COVER 1
6 12471002500002 DRAIN COVER SET HANDLE 2
7 1466040031ASSY IMPELLER ASSEMBLY 1
8 1466000130 VOLUTE CASING 1
9 1466040700 WEAR PLATE 1
10 14660002200002 DRAIN SET HANDLE 4
11* 0482200240 O-RING (MECHANICAL SEAL SLEEVE) 2
12 0641400430 SPLIT PIN 4
13 0131190820 CAP SCREW, M8X20 (VOLUTE CASING) 3
14 1401350350 CHECK VALVE 1
15 0105051045 BOLT, M10X45 (ENGINE) 4
16* 0483602750 O-RING (DRAIN COVER) 1
17 1466330460 O-RING (CASING) 1
18 1466214010P002 BASE 1
19 1401330360 DELIVERY COVER PACKING 2
20 0451290080 WASHER, LOCK M8 ( WEAR PLATE ) 3
21 14662140210014 ENGINE BASE .......................................................1............REPLACES 14662140200014
22 0631211159 FLOODING CAP, PF1 1/2" 1
23 0631211159 DRAIN CAP, PF1 1/2" 2
24* 0803442930 MECHANICAL SEAL 1
25* 0811885433 MECHANICAL SEAL SLEEVE 1
26* 0852834525 ADJUST LINER, F45XF25.4 T0.3 1
27* 0852854525 ADJUST LINER, F45XF25.4 T0.5 1
28 0131290665 CAP SCREW, 3/8-16UNC×65
(CASING CVR SET BOLT) 4
29 0141050825 SCREW, M8×25 (DRAIN CUVER SET HANDLE) 4
30 0131151225 CAP SCREW, M12×25 (SUCTION COVER 4
31 0131190820 CAP SCREW, M8×20 (WEAR PLATE) 3
32 0131151230 CAP SCREW, M12×30 (CASING) 6
33 0105051040 BOLT, M10×40 (PUMP) 2
34 0520040440 KEY, 6.3×40 1
35 0723302546 CUSHION RUBBER 4
36 0458220071 WASHER, SEAL (IMPELLER) 1
37 0107090650 BOLT, 3/8-24UNFX50 (IMPELLER) 1
38 1466200270 HINGE BOLT, M10×65 4
39 1466220280 HINGE PIN 4
QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14) — PAGE 31
PUMP ASSEMBLY
PAGE 32 — QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14)
PUMP ASSEMBLY
NO. PART NO. PART NAME QTY. REMARKS
40 1466251241 IMPELLER WASHER, 42 X 9.8 X T6.0 ..................1............REPLACES 43342012400011
41 0458220071 SEAL WASHER, 3/8" (CASING COVER ) 4
42 0205450100 NUT, M10 (ENGINE) 4
43 0205450100 NUT, M10 (CUSHION RUBBER) 8
44 0205450100 NUT, M10 (PUMP) 4
45 0401450100 WASHER, M10 (ENGINE) 4
46 0451290080 WASHER, SPRING M8 (VOLUTE CASING) 3
47 0451250080 WASHER, SPRING M8
(DRAIN COVER SET HANDLE) 4
48 0451250100 WASHER, SPRING M10 (CUSHION RUBBER) 8
49 0451250100 WASHER, SPRING M10 (ENGINE) 4
50 0451250100 WASHER, SPRING M10 (PUMP) 2
51* 0481572500 O-RING (VOLUTE CASING) 1
52 1466108050 CAP 1
53 0742214100 STRAINER 1
54 0131151220 CAP SCREW, M12×20 (DELIVERY COVER) 8
55 KIT4TH KIT, MECHANICAL SEAL, SLEEVE, O-RINGS .....1............INCLUDES ITEMS W/
56 GX340K1QA2 ENGINE, HONDA 10.7 HP ....................................1............S/N 4TH-0249 AND BELOW
56 GX340U1QA2 ENGINE, HONDA 10.7 HP ....................................1............S/N 4TH-0250 TO 4TH-3304
56 GX340UT2QA2 ENGINE, HONDA 10.7 HP ....................................1............S/N 4TH-3305 AND ABOVE
*
QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14) — PAGE 33
ENGINE SERVICE PARTS
PAGE 34 — QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14)
ENGINE SERVICE PARTS
NO. PART NO. PART NAME QTY. REMARKS
1 17672ZE2W01 FILTER, FUEL ........................................................1............GX340K1QA2
2 17672Z4H020 FILTER, FUEL ........................................................1............GX340U1QA2/GX240UT2QA2
3 17620ZH7023 CAP, FUEL TANK ..................................................1............GX340K1QA2
3 17620Z4H020 CAP, FUEL TANK ...................................................1............GX340U1QA2/GX240UT2QA2
4 28462ZE3W01 ROPE, RECOIL STARTER 1
5 17210ZE3505 ELEMENT, AIR CLEANER ....................................1............GX340K1QA2
INCLUDES ITEM W/ #
5 17210ZE3010 ELEMENT, AIR CLEANER ....................................1............GX340U1QA2/GX240UT2QA2
INCLUDES ITEM W/ #
6# 17218ZE1507 FILTER, OUTER 1
7 9807956846 SPARK PLUG ........................................................1............GX340K1QA2
7 9807955846 SPARK PLUG ........................................................1............GX340U1QA2/GX240UT2QA2
QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14) — PAGE 35
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.
2.
3.
4.
5. Parts must be in new and resalable
Multiquip reserves the right to quote and
sell direct to Government agencies, and to
Original Equipment Manufacturer accounts
who use our products as integral parts of their
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
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 profi t or good will or for any
other special, consequential or incidental
No warranties, express or implied, are
made in connection with the sale of parts or
trade accessories nor as to any engine not
manufactured by Multiquip. Such warranties
made in connection with the sale of new,
complete units are made exclusively by a
statement of warranty 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
A Returned Material Authorization
must be approved by Multiquip prior to
shipment.
To obtain a Return Material Authorization,
a list must be provided to Multiquip
Parts Sales that defi nes 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.
A copy of the Return Material Authorization
must accompany the return shipment.
Freight is at the sender’s expense. All
parts must be returned freight prepaid to
Multiquip’s designated receiving point.
TERMS AND CONDITIONS OF SALE — PARTS
condition, in the original Multiquip
package (if any), and with Multiquip part
numbers clearly marked.
6. The following items are not returnable:
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.
7. The sender will be notifi ed of any material
received that is not acceptable.
8. Such material will be held for five
working days from notifi cation, pending
instructions. If a reply is not received
within five days, the material will be
returned to the sender at his expense.
9. Credit on returned parts will be issued
at dealer net price at time of the original
purchase, less a 15% restocking
charge.
10. In cases where an item is accepted, for
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.
11. Credit issued will be applied to future
purchases only.
PRICING AND REBATES
Prices are subject to change without prior
notice. Price changes are effective on a
specifi c 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.
own products.
SPECIAL EXPEDITING SERVICE
parts to the carrier.
damages.
LIMITATION OF WARRANTIES
of the products on the face hereof.
Effective: February 22, 2006
PAGE 36 — QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14)
NOTES
QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14) — PAGE 37
OPERATION AND PARTS MANUAL
HERE’S HOW TO GET HELP
© COPYRIGHT 2013, MULTIQUIP INC.
Multiquip Inc
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
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.
PLEASE HAVE THE MODEL AND SERIAL
NUMBER ON-HAND WHEN CALLING
UNITED STATES
Multiquip Corporate Offi ce MQ Parts Department
18910 Wilmington Ave.
Carson, CA 90746
Contact : mq@multiquip.com
Service Department Warranty Department
800-421-1244
310-537-3700
Technical Assistance
800-478-1244 Fax: 310-943-2238
CANADA
Multiquip Multiquip (UK) Limited Head Offi ce
4110 Industriel Boul.
Laval, Quebec, Canada H7L 6V3
Contact : jmartin@multiquip.com
Tel. (800) 421-1244
Fax (310) 537-3927
Fax: 310-537-4259 800-421-1244
Tel: (450) 625-2244
Tel: (877) 963-4411
Fax: (450) 625-8664
800-427-1244
310-537-3700
310-537-3700
UNITED KINGDOM
Unit 2, Northpoint Industrial Estate,
Globe Lane,
Dukinfi eld, Cheshire SK16 4UJ
Contact : sales@multiquip.co.uk
Fax: 800-672-7877
Fax: 310-637-3284
Fax: 310-943-2249
Tel: 0161 339 2223
Fax: 0161 339 3226
,
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.
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