MULTIQUIP QP3TZ Guide

THIS MANUAL MUST ACCOMPANYTHE EQUIPMENT AT ALL TIMES.
OPERATION AND PARTS MANUAL
To find the latest revision of this
publication, visit our website at:
www.multiquip.com
MODEL QP3TZ
TRASH PUMP
(Hatz 1B30 Diesel Engine)
Revision #2 (11/15/10)

PAGE 2 — QP3TZ TRASH PUMP — OPERATION AND PARTS MANUAL — REV. #2 (11/15/10)
Diesel engine exhaust and some of
PROPOSITION 65 WARNING

QP3TZ TRASH PUMP — OPERATION AND PARTS MANUAL — REV. #2 (11/15/10) — PAGE 3
NOTES

PAGE 4 — QP3TZ TRASH PUMP — OPERATION AND PARTS MANUAL — REV. #2 (11/15/10)
MQ QP3TZ Trash Pump
Proposition 65 Warning ............................................. 2
Table of Contents ...................................................... 4
Parts Ordering Procedures ....................................... 5
Safety Information ................................................ 6-10
Pump Specifications/Dimensions .............................11
Engine Specifications ...............................................12
General Information .................................................13
Components.............................................................14
Basic Engine ............................................................15
Inspection .................................................................16
Setup ........................................................................17
Operation .................................................................18
Maintenance (Pump) ......................................... 19-20
Maintenance (Engine)........................................ 21-22
Preparation for Long-Term Storage .........................23
Troubleshooting ................................................. 24-25
Explanation Of Code In Remarks Column ...............26
Suggested Spare Parts ............................................27
Pump Assy. ........................................................ 28-31
Hatz 1B30 Diesel Engine
Spare Parts Kit Assembly ................................. 32-33
Accessories Assembly...................................... 34-35
Crankcase and Engine Mount Assembly ......... 36-37
Crankshaft Assembly ....................................... 38-39
Camshaft Assembly ......................................... 40-41
Piston Assembly ............................................... 42-43
Cylinder Head Assembly .................................. 44-45
Oil Pump/Governor Assembly .......................... 46-49
Timing Cover Assembly ................................... 50-51
Flywheel Assembly ........................................... 52-53
Fuel Injection Assembly ................................... 54-57
Recoil Starter Assembly ................................... 58-59
Air Duct Assembly ............................................ 60-63
Crankcase Breather Assembly ......................... 64-65
Fuel Tank Assembly (Old Style) ....................... 66-67
Fuel Tank Assembly (New Style) ...................... 68-71
Air Filter Assembly ........................................... 72-73
Muffler Assembly .............................................. 74-75
Sealing and Bonding Adhesives............................ 76
Terms and Condition Of Sale —Parts .................... 77
TABLE OF CONTENTS
Specification and part number are subject to
change without notice.
NOTICE

PAGE 6 — QP3TZ TRASH PUMP — OPERATION AND PARTS MANUAL — REV. #2 (11/15/10)
SAFETY INFORMATION
Do not operate or service the equipment before reading
the entire manual. Safety precautions should be followed
at all times when operating this equipment.
Failure to read and understand the safety
messages and operating instructions could
result in injury to yourself and others.
SAFETY MESSAGES
The four safety messages shown below will inform you
about potential hazards that could injure you or others.The
safety messages specifically address the level of exposure
to the operator and are preceded by one of four words:
DANGER, WARNING, CAUTION or NOTICE.
SAFETY SYMBOLS
DANGER
Indicates a hazardous situation which, if not avoided,
WILL result in DEATH or SERIOUS INJURY.
WARNING
Indicates a hazardous situation which, if not avoided,
COULD result in DEATH or SERIOUS INJURY.
CAUTION
Indicates a hazardous situation which, if not avoided,
COULD result in MINOR or MODERATE INJURY.
NOTICE
Addresses practices not related to personal injury.
Potential hazards associated with the operation of this
equipment will be referenced with hazard symbols which
may appear throughout this manual in conjunction with
safety messages.

QP3TZ TRASH PUMP — OPERATION AND PARTS MANUAL — REV. #2 (11/15/10) — PAGE 7
SAFETY INFORMATION
GENERAL SAFETY
CAUTION
NEVER operate this equipment without proper protective
clothing, shatterproof glasses, respiratory protection,
hearing protection, steel-toed boots and other protective
devices required by the job or city and state regulations.
NEVER operate this equipment when not
feeling well due to fatigue, illness or when
under medication.
NEVER operate this equipment under the influence of
drugs or alcohol.
NOTICE
This equipment should only be operated by trained and
qualified personnel 18 years of age and older.
Whenever necessary, replace nameplate, operation and
safety decals when they become difficult read.
Manufacturer does not assume responsibility for any
accident due to equipment modifications. Unauthorized
equipment modification will void all warranties.
NEVER use accessories or attachments that are not
recommended by Multiquip for this equipment. Damage
to the equipment and/or injury to user may result.
ALWAYS know the location of the nearest
fire extinguisher.
ALWAYS know the location of the nearest
first aid kit.
ALWAYS know the location of the nearest phone or keep
a phone on the job site. Also, know the phone numbers
of the nearest ambulance, doctor and fire department.
This information will be invaluable in the case of an
emergency.
PUMP SAFETY
DANGER
NEVER pump volatile, explosive, flammable or low flash
point fluids. These fluids could ignite or explode.
The engine fuel exhaust gases contain poisonous carbon
monoxide. This gas is colorless and odorless, and can
cause death if inhaled.
The engine of this equipment requires an adequate free
flow of cooling air. NEVER operate this equipment in any
enclosed or narrow area
where free flow of the air is
restricted. If the air flow 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 fire could result causing severe
bodily harm or even death.
WARNING
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 disconnect any emergency or safety devices.
These devices are intended for operator safety.
Disconnection of these devices can cause severe injury,
bodily harm or even death. Disconnection of any of these
devices will void all warranties.

PAGE 8 — QP3TZ TRASH PUMP — OPERATION AND PARTS MANUAL — REV. #2 (11/15/10)
SAFETY INFORMATION
CAUTION
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 fill the pump casing with water before starting
the engine. Failure to maintain water inside the pump
housing will cause severe damage to the pump and
mechanical seal.
In winter drain water from pump housing to prevent
freezing.
NEVER 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.
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.
ENGINE SAFETY
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,
muffler or cylinder. Allow these parts to cool
before servicing equipment.
NOTICE
NEVER run engine without an air filter or with a dirty air
filter. Severe engine damage may occur. Service air filte
r
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.

QP3TZ TRASH PUMP — OPERATION AND PARTS MANUAL — REV. #2 (11/15/10) — PAGE 9
SAFETY INFORMATION
FUEL SAFETY
DANGER
DO NOT add fuel to equipment if it is placed inside truck
bed with plastic liner. Possibility exists of explosion or
fire due to static electricity.
DO NOT start the engine near spilled fuel or combustible
fluids. Fuel is extremely flammable and its vapors can
cause an explosion if ignited.
ALWAYS refuel in a well-ventilated area, away from
sparks and open flames.
ALWAYS use extreme caution when working with
flammable liquids.
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 appropriate containers, in well-ventilated
areas and away from sparks and flames.
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.
BATTERY SAFETY (ELECTRIC START ONLY)
DANGER
DO NOT drop the battery. There is a possibility that the
battery will explode.
DO NOT expose the battery to open flames,
sparks, cigarettes, etc.The battery contains
combustible gases and liquids. If these
gases and liquids come into contact with a
flame or spark, an explosion could occur.
WARNING
ALWAYS wear safety glasses when
handling the battery to avoid eye irritation.
The battery contains acids that can cause
injury to the eyes and skin.
Use well-insulated gloves when picking up
the battery.
ALWAYS keep the battery charged. If the battery is not
charged, combustible gas will build up.
DO NOT charge 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.
CAUTION
ALWAYS disconnect the NEGATIVE battery terminal
before performing service on the equipment.
ALWAYS keep battery cables in good working condition.
Repair or replace all worn cables.

PAGE 10 — QP3TZ TRASH PUMP — OPERATION AND PARTS MANUAL — REV. #2 (11/15/10)
TRANSPORTING SAFETY
CAUTION
NEVER allow any person or animal to stand underneath
the equipment while lifting.
NOTICE
Before lifting, make sure that the equipment parts (hook
and vibration insulator) are not damaged and screws are
not loose or missing.
Always make sure crane or lifting device has been
properly secured to the lifting bail (hook) of the
equipment.
ALWAYS shutdown engine before transporting.
NEVER lift the equipment while the engine is running.
Tighten fuel tank cap securely and close fuel cock to
prevent fuel from spilling.
Use adequate lifting cable (wire or rope) of sufficient
strength.
Use one point suspension hook and lift straight upwards.
DO NOT lift machine to unnecessary heights.
ALWAYS tie down equipment during transport by
securing the equipment with rope.
ENVIRONMENTAL SAFETY
NOTICE
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.
SAFETY INFORMATION

QP3TZ TRASH PUMP — OPERATION AND PARTS MANUAL — REV. #2 (11/15/10) — PAGE 11
Figure 1. QP3TZ Dimensions
Table 1.Specifications(Pump)
Pump
Model QP3TZ
Typ eTrash Pump
Suction& Discharge Size3.00 in. (76 mm.)
MaximumPumping
Capacity
383gallons/minute
(1,450 liters/minute)
Max.Solids Diameter 1.50 in. (38 mm.)
Max.Lift 25 ft.(7.62 meters)
Max.Head 90 ft.(27.0 meters)
Dimension
(L x Wx H)
27.8 x 20.0 X 25.0 in.
(705 X 510 X 635 mm.)
Dry Net Weight 163lbs. (74 Kg.)
SPECIFICATIONS/DIMENSIONS (PUMP)
25 IN.
(63.5 CM.)
20.0 IN.
(51 CM.)
27.8 IN.
(70.5 CM.)

PAGE 12 — QP3TZ TRASH PUMP — OPERATION AND PARTS MANUAL — REV. #2 (11/15/10)
100
90
80
70
60
50
40
30
20
10
0
050 150
US GALLONS PER MINUTE
TOTAL
HEAD
FT.
23.3 FT. 16.7 FT. 10 FT.
100 200 250 300 350 400
3.3 FT.
1.6 FT.
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SPECIFICATIONS (ENGINE)

QP3TZ TRASH PUMP — OPERATION AND PARTS MANUAL — REV. #2 (11/15/10) — PAGE 13
APPLICATION
The
QP3TZ Trash Pump is designed to be used for dewatering
applications. Both the suction and discharge ports on the QP3TZ
trash pump use a 3-inch diameter opening, which allows the
pump to pump at a rate of approximately 383 gallons/minute
(gpm) or 1,450 liters/minute (lpm).
Trash or self-priming pumps are designed to purge air from the
suction line and create a partial vacuum in the pump body. The
reduced atmospheric pressure inside the pump allows water to
flow through the suction line and into the pump body. The
centrifugal force created by the rotating impeller pressurizes the
water and expels it from the pump.
Engine
This trash pump is powered by a 6.8 horsepower, air-cooled,
HATZ 1B30 diesel engine.
Trash Pump
Trash pumps derive their name from their ability to handle a
greater amount of debris and solids than standard centrifugal
pumps. This pump 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.
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
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.
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
25 feet rather than the 18 feet at sea level.Table 3 shows suction
lift at various elevations.
Table 4 shows percentage drops in performance as elevation
increases.
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GENERAL INFORMATION

PAGE 14 — QP3TZ TRASH PUMP — OPERATION AND PARTS MANUAL — REV. #2 (11/15/10)
Figure 2 shows a typical application using the QP3TZ Trash pump. Please note that this pump is intended for the removal of clean
water and water containing some debris and solids. Maximum size of solids should not exceed 1.5 inch (30 mm) in diameter. DO
NOT set strainer on bottom of water bed. Placing the strainer above the water bed will prevent the pump from drawing in excessive
amounts of sand and foreign debris.
1. Pump – The model QP3TZ is a 3-inch trash pump used 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.
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 3-inch discharge hose to
either port (one of two ports).
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 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 portion 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 counterclockwise to release cover.
12. Strainer – Always attach a strainer to the 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.
Figure 2. QP3TZ Pump Application
COMPONENTS
NOTE:
CONTACT YOUR NEAREST
MULTIQUIP DEALER FOR
QUICK DISCONNECT HOSES
AND FITTINGS.
5
5
4
4
4
7
89
10 11
12
4
3
21
6

QP3TZ TRASH PUMP — OPERATION AND PARTS MANUAL — REV. #2 (11/15/10) — PAGE 15
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 manufacturer’s Engine
manual for instructions & details of operation and servicing.
1. Fuel Filler Cap/Fuel Tank – Pull this latch to add
diesel
fuel to the tank. After refueling, always make sure the fuel
cap is latched properly. DO NOT over fill. For additional
information refer to engine owner's manual.
6. Engine Motor Mounts – Attach these engine mounts to
the pump frame.Tighten securely.
7. Oil Filter – Remove this bolt to gain access (internal) to the
engine oil filter. Service the oil filter as recommended in the
maintenance section of this manual.
8. Oil Drain Plugs – There are two oil drain plugs, one is
underneath the flywheel, the other on the side of the engine.
Remove these plugs to drain engine oil from the engine
crankcase.
9. Crankshaft – Connect this shaft to the input of the
transmission.
10. Muffler – Used to reduce noise and emissions.
11. Nameplate – Contains information about the engine.
2. Engine Lifting Straps/Cover – Remove the air cleaner
cover, then lift this cover (the one with decals on it) to gain
access to the engine lifting straps.
3. Air Cleaner/Cover – Prevents dirt and other debris from
entering the fuel system. Remove wing-nut on side of air
filter cover to gain access to filter element.
4. Speed Control Lever – This lever is connected to the
throttle control which is located on the side of the engine
compartment cover. Use this lever to control engine speed.
5. Dipstick – Remove dipstick to determine if the engine oil
level is low. If low, add oil as specified.
BASIC ENGINE
WARNING
Add fuel to the tank only when the engine is
stopped and has cooled 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.
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.
WARNING
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.
NOTICE

PAGE 16 — QP3TZ TRASH PUMP — OPERATION AND PARTS MANUAL — REV. #2 (11/15/10)
Figure 5. Engine Oil Dipstick (Removal)
3. Insert and remove the dipstick without screwingit 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)
Figure 6. Engine Oil Dipstick (Oil Level)
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
(Figure 5) and wipe clean.
Fuel Check
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!
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INSPECTION
NEVER operate the pump in a confined
area or enclosed area structure that does
not provide ample
free flow of air .
CAUTION
ALWAYS wear approved eye and hearing
protection before operating the pump.
CAUTION
EXPLOSIVE FUEL!
Motor fuels are highly flammable and can
be dangerous if mishandled. DO NOT
smoke while refueling. DO NOT attempt to
refuel if the engine is
hot or running .
DANGER

QP3TZ TRASH PUMP — OPERATION AND PARTS MANUAL — REV. #2 (11/15/10) — PAGE 17
Before Starting
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.
4. Check for
leaks between pump and engine. If water is leaking
between the pump and engine housing, the seal inside the
pump may be worn or damaged. Continued operation of the
pumpis not recommended. Further usage of the pumpunder
these conditions may cause severe water damage to engine.
Hoses and Clamps
1. Check that all hoses are
securely attached to the pump.
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
rigid enough not to
collapse when the pump is in operation.
4. Check that the discharge hose (Figure 2) 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.
NOTE
Suction and discharge hoses are
available from Multiquip. Contact
your nearest dealer for more
information.
5. The discharge hose is usually a collapsible (thin-walled)
hose, however if a thin-walled discharge hose is not avail-
able, a rigid suction hose can be substituted in its place.
6. Make sure the suction strainer (Figure 2) 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 into the pump.
INSPECTION
Pump casing must be filled with water before using pump.
Otherwise pump will not be able to begin pumping.
NOTICE
DO NOT open fill cap if pump is hot! Water inside may be
under pressure.
WARNING 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.
CAUTION
DO NOT pump flammable fluids, corrosive chemicals or fluids
containing toxic substances. These fluids can create potentially
dangerous health and environmental hazards. Contact local
authorities for assistance.
CAUTION
This pump uses a water-cooled mechanical seal to prevent
water from seeping into the engine. The passage of water
through the pump casing lubricates the seal and prevents it
from overheating.
NEVER operate the pump without water in
the casing as this will cause damage to the mechanical seal.
CAUTION

PAGE 18 — QP3TZ TRASH PUMP — OPERATION AND PARTS MANUAL — REV. #2 (11/15/10)
Stopping The Engine
Normal Shutdown
1. Move the engine speed lever to the low speed and run the
engine for about three minutes with no load.
2. After the engine cools, move the engine speed lever to the
STOP position (Figure 11).
4. Slowly pull the starter grip (Figure 9) until strong resistance
is felt and leave it in this position. This prevents rust from
forming while the engine is not in use.
Emergency Shutdown
1. To stop engine immediately, quickly place the engine speed
lever to the STOP position.
Figure 11. Engine Speed Lever (STOP Position)
This section is intended to assist the operator with the
initial
start-up
of the trash pump. It is extremely important that this
section be read carefully before attempting to use the pump in
the field.
Starting the Engine (
HATZ engine)
3. Move the engine speed lever to the START position
(Figure 8).
5. Pull the starter grip again, hard and fast, pulling it all the
way out to start engine.
6. If the engine does not start, repeat steps 4 and 5.
Figure 9. Starter Grip
Figure 8. Engine Speed Lever (START position)
4. Grasp the starter grip (Figure 9) and slowly pull it out until
you feel the strongest resistance then return the starter grip
to the initial position.
OPERATION
DO NOT attempt to operate the pump
until the Safety, General Information and
Inspection sections of this manual have
been
read and thoroughly
understood
.
CAUTION
Do not allow the starter grip to snap back against the engine.
Return it gently to prevent damage to the starter.
CAUTION
ALWAYS run engine at full speed while pumping.
CAUTION
When stopping the engine, reduce the load slowly. Do not
stop engine suddenly since it may cause the temperature to
rise abnormally.
CAUTION

QP3TZ TRASH PUMP — OPERATION AND PARTS MANUAL — REV. #2 (11/15/10) — PAGE 19
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 13, 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 (Figure 13) 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.
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.
Pump Vacuum Test Adjusting Impeller Clearance
1. If it is necessary to replace impeller or volute, be sure
clearance between impeller and volute is adjusted correctly.
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. Remove spark plug to
make it easier to turn impeller.
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.
6. To test the
flapper valve , shut down 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.
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.
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 2)
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.
MAINTENANCE
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.
NOTICE
25 in. Hg. (inches of mercury) translates into 25 feet of lift at
sea level .
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
wears down, additional shims may be required to maintain
the clearance between the impeller and insert.
NOTICE
The impeller may develop sharp edges . Use extreme care
when cleaning around the impeller to prevent being cut.
CAUTION

PAGE 20 — QP3TZ TRASH PUMP — OPERATION AND PARTS MANUAL — REV. #2 (11/15/10)
Figure 13. Pump Vacuum Tester
MAINTENANCE
-15
-30
-10
-5
in. Hg
kPa
WIKA
R
-100
-80
-60 -40
-20
ACCEPTABLE READING
SHOULD BE BETWEEN
-25 AND -20 IN. HG.
25 IN. HG. TRANSLATES
INTO 25 FEET OF LIFT
AT SEA LEVEL.
PLACE VACUUM TESTER
OVER PUMP SUCTION PORT
CAUTION
DO NOT RUN PUMP
WITHOUT WATER.
-25
-20
DISCHARGE
PORT
PUMP VACUUM
TESTER
DIRECTION
OF WATER
FLOW
WATER HOSE
SOURCE
WATER
Pressure reading may vary depending on altitude. See
Tables 3 and 4.
NOTICE

QP3TZ TRASH PUMP — OPERATION AND PARTS MANUAL — REV. #2 (11/15/10) — PAGE 21
Engine Maintenance
Perform engine maintenance procedures as referenced by
Table 6 below:
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)3(NOITPIRCSEDNOITAREPOEROFEB
TSRIF
HTNOM
RO
.SRH01
YREVE
SHTNOM3
RO
.SRH52
YREVE
SHTNOM6
RO
.SRH05
YREVE
RAEY
RO
.SRH0
01
YREVE
SRAEY2
RO
.SRH002
liOenignE
KCEHCX
EGNAHCX
renaelCriA
KCEHCX
EGNAHC)1(X
stloB&stuNllA fInethgit-eR
yrasseceN X
sniFgnilooCKCEHCX
retserrAkrapSNAELC X
knaTleuFNAELC X
retliFleuFKCEHC X
deepSeldITSUJDA-KCEHC )2(X
ecnaraelCevlaVTSU
JDA-KCEHC )2(X
senilleuFKCEHC )2()yrassecenfiecalper(sraey2yrevE
nidesunehwyltneuqerferomecivreS)1( YTSUD .s
aera
yllacinahcemeradnaslootreporpehtevahuoysselnu,relaedecivresruoyybdecivresebdluohssmetiesehT)2(
.se
rudecorpecivresroflaunampohsZTAHehtotrefeR.tneiciforp
.slavretniecnanetniamreporpenimretedotnoitarepof
osruohgol,esulaicremmocroF)3(
MAINTENANCE
Refer to engine manual for specific servicing instructions.
NOTICE