Pump
PT 6 /...
OPERATOR’S MANUAL
0154629en 006
0107
0154629EN
PT 6 /... Table of Contents
wc_bo0154629en_006TOC.fm 1
1. Foreword 3
2. Safety Information 4
2.1 State Regulations Concerning Trailers ................................................. 4
2.2 Operating Safety .................................................................................. 5
2.3 Operator Safety While Using Internal Combustion Engines ................. 6
2.4 Service Safety ...................................................................................... 6
2.5 Towing Safety ....................................................................................... 7
2.6 Reporting Trailer Safety Defects .......................................................... 8
2.7 Label Locations .................................................................................... 9
2.8 Safety Labels ...................................................................................... 10
3. Technical Data 13
3.1 Engine ................................................................................................ 13
3.2 Pump .................................................................................................. 14
3.3 Lubrication .......................................................................................... 14
3.4 Trailer ................................................................................................. 14
3.5 Dimensions ....................................................................................... 15
4. Operation 16
4.1 Operation and Service Locations ....................................................... 16
4.2 Application .......................................................................................... 18
4.3 Recommended Fuel ........................................................................... 18
4.4 Before Starting the Engine ................................................................. 18
4.5 Before Starting the Pump ................................................................... 18
4.6 To Start ............................................................................................... 20
4.7 To Stop ............................................................................................... 20
4.8 Automatic Shutdown System ............................................................. 21
4.9 Important Operation Note ................................................................... 21
4.10 Hoses ................................................................................................. 22
4.11 Hose Couplings .................................................................................. 22
4.12 Hose Clamps ...................................................................................... 22
4.13 Strainer ............................................................................................... 23
4.14 Discharge Port .................................................................................... 23
4.15 Covers ................................................................................................ 24
4.16 Hitching and Towing the Trailer .......................................................... 26
Table of Contents PT 6 /...
wc_bo0154629en_006TOC.fm 2
5. Maintenance 28
5.1 Engine Fuel Delivery System Maintenance .........................................28
5.2 Storage ................................................................................................28
5.3 Periodic Maintenance Schedule ..........................................................29
5.4 Air Cleaner ..........................................................................................30
5.5 Fuel Filter ............................................................................................31
5.6 Priming the Fuel System .....................................................................31
5.7 Engine Lubrication ...............................................................................32
5.8 Engine Oil ............................................................................................33
5.9 Valve Clearances ................................................................................33
5.10 Fan Belt ...............................................................................................34
5.11 Pump Housing Mounting Bolts ............................................................35
5.12 Mechanical Seal Lubrication ...............................................................36
5.13 Bearing Housing Lubrication ...............................................................37
5.14 Impeller Clearance ..............................................................................38
5.15 Cleaning the Engine Cooling Fins .......................................................40
5.16 Battery .................................................................................................40
5.17 Lifting the Machine ..............................................................................41
5.18 Tires ....................................................................................................42
5.19 Wheels and Lug Nuts ..........................................................................42
5.20 Tongue Jack ........................................................................................42
5.21 Safety Chains ......................................................................................43
5.22 Lights ...................................................................................................44
5.23 Wiring Diagram — Trailer ....................................................................45
5.24 Wiring Diagram (0007174 > Rev 119; 0007175 > Rev 122) ...............46
5.25 Wiring Diagram Components ..............................................................47
5.26 Wiring Diagram (0007174 < Rev 120; 0007175 < Rev 123) ...............48
5.27 Wiring Diagram Components ..............................................................49
5.28 Basic Troubleshooting .........................................................................50
wc_tx000001gb diesel.fm 3
CALIFORNIA
Proposition 65 Warning:
Diesel engine exhaust, some of its constituents, and certain vehicle
components contain or emit chemicals known to the State of California
to cause cancer and birth defects or other reproductive harm.
1. Foreword
This manual provides information and procedures to safely operate
and maintain this Wacker model. For your own safety and protection
from injury, carefully read, understand and observe the safety
instructions described in this manual.
Keep this manual or a copy of it with the machine. If you lose this
manual or need an additional copy, please contact Wacker
Corporation. This machine is built with user safety in mind; however,
it can present hazards if improperly operated and serviced. Follow
operating instructions carefully! If you have questions about operating
or servicing this equipment, please contact Wacker Corporation.
The information contained in this manual was based on machines in
production at the time of publication. Wacker Corporation reserves the
right to change any portion of this information without notice.
All rights, especially copying and distribution rights, are reserved.
Copyright 2007 by Wacker Corporation.
No part of this publication may be reproduced in any form or by any
means, electronic or mechanical, including photocopying, without
express written permission from Wacker Corporation.
Any type of reproduction or distribution not authorized by Wacker
Corporation represents an infringement of valid copyrights and will be
prosecuted. We expressly reserve the right to make technical
modifications, even without due notice, which aim at improving our
machines or their safety standards.
WARNING
Safety Information PT 6 /...
wc_si000098gb.fm 4
2. Safety Information
This manual contains DANGER, WARNING, CAUTION, NOTICE and
NOTE callouts which must be followed to reduce the possibility of
personal injury, damage to the equipment, or improper service.
This is the safety alert symbol. It is used to alert you to potential
personal injury hazards. Obey all safety messages that follow this
symbol to avoid possible injury or death.
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: Used without the safety alert symbol, NOTICE indicates a
hazardous situation which, if not avoided, could result in property
damage
Note: Contains additional information important to a procedure.
2.1 State Regulations Concerning Trailers
Trailer laws covering such things as brakes, lights, safety chains, etc.,
will vary from state to state. Make certain that your trailer is in
compliance with the regulations of the state in which the trailer will be
used. If you are not sure what these regulations are, contact the state
motor vehicle department for information.
In some states, trailers must be registered and licensed by the State
Department of Transportation. Before towing, be sure to check
licensing requirements.
DANGER
WARNING
CAUTION
PT 6 /... Safety Information
wc_si000098gb.fm 5
2.2 Operating Safety
Familiarity and proper training are required for the safe operation of
equipment. Equipment operated improperly or by untrained personnel
can be dangerous. Read the operating instructions contained in both
this manual and the engine manual and familiarize yourself with the
location and proper use of all controls. Inexperienced operators should
receive instruction from someone familiar with the equipment before
being allowed to operate the machine.
2.2.1 NEVER allow anyone to operate this equipment without proper
training. People operating this equipment must be familiar with the
risks and hazards associated with it.
2.2.2 NEVER touch the engine or muffler while the engine is on or
immediately after it has been turned off. These areas get hot and may
cause burns.
2.2.3 NEVER use accessories or attachments that are not recommended by
Wacker. Damage to equipment and injury to the user may result.
2.2.4 NEVER leave machine running unattended.
2.2.5 NEVER operate this machine in applications for which it is not
intended.
2.2.6 NEVER open the priming plug when the pump is hot. Never loosen or
remove inlet or discharge hose fittings when the pump is hot. Hot water
inside could be pressurized much like the radiator on an automobile.
Allow the pump to cool to the touch before loosening the plug and
before loosening or removing the inlet or discharge hose fittings.
2.2.7 NEVER position the pump on a loose, uneven, or unstable surface
where it can tip, roll, slide or fall! The pump must be secure before
operating. Position the pump on a firm, flat surface; adjust the trailer
jacks to be sure the pump is level and supported firmly.
2.2.8 NEVER open the pump housing cover while the pump is operating or
start the pump with the cover off. The rotating impeller inside the pump
can cut or sever objects caught in it.
2.2.9 NEVER block or restrict flow from the inlet line or the discharge line.
Remove kinks from the discharge line before starting the pump.
Operation with a blocked inlet line or discharge line can cause water
inside the pump to overheat.
2.2.10 NEVER reach into or insert anything into the pump while the engine is
on! The impeller inside the pump housing is turning at all times while
the engine is running.
2.2.11 DO NOT allow anyone to stand in front of the discharge port when
starting the engine or while priming the pump! The sudden out-rush of
water could push or knock a person down.
WARNING
Safety Information PT 6 /...
wc_si000098gb.fm 6
2.2.12 ALWAYS make sure the hose connections on the pump are tight. A
loose connection could cause water to spray or result in a hose falling
off the pump while it is in operation.
2.2.13 ALWAYS make sure the water stream from the pump discharge is not
directed in such a way so as to cause erosion to the surrounding
ground or damage or weakening of nearby structures!
2.3 Operator Safety While Using Internal Combustion Engines
2.3.1 DO NOT run the machine indoors or in an enclosed area such as a
deep trench unless adequate ventilation, through such items as
exhaust fans or hoses, is provided. Exhaust gas from the engine
contains poisonous carbon monoxide gas; exposure to carbon
monoxide can cause loss of consciousness and may lead to death.
2.3.2 DO NOT smoke while operating the machine.
2.3.3 DO NOT smoke when refueling the engine.
2.3.4 DO NOT refuel a hot or running engine.
2.3.5 DO NOT refuel the engine near an open flame.
2.3.6 ALWAYS refill the fuel tank in a well-ventilated area.
2.3.7 ALWAYS replace the fuel tank cap after refueling.
2.3.8 ALWAYS check the fuel lines and the fuel tank for leaks and cracks
before starting the engine. Do not run the machine if fuel leaks are
present or the fuel lines are loose.
2.3.9 ALWAYS keep the area around a hot exhaust pipe free of debris to
reduce the chance of an accidental fire.
2.4 Service Safety
Poorly maintained equipment can become a safety hazard! In order
for the equipment to operate safely and properly over a long period of
time, periodic maintenance and occasional repairs are necessary.
2.4.1 DO NOT attempt to clean or service the machine while it is running.
Rotating parts can cause severe injury.
2.4.2 DO NOT use gasoline or other types of fuels or flammable solvents to
clean parts, especially in enclosed areas. Fumes from fuels and
solvents can become explosive.
2.4.3 DO NOT attempt to clean or service the machine while it is running.
2.4.4 DO NOT operate the machine without an air cleaner.
2.4.5 ALWAYS replace worn or damaged components with spare parts
designed and recommended by Wacker Corporation.
WARNING
PT 6 /... Safety Information
wc_si000098gb.fm 7
2.4.6 ALWAYS keep the machine clean and labels legible. Replace all
missing and hard-to-read labels. Labels provide important operating
instructions and warn of dangers and hazards.
2.4.7 ALWAYS replace the safety devices and guards after repairs and
maintenance.
2.4.8 ALWAYS check all external fasteners at regular intervals.
2.4.9 ALWAYS remain aware of moving parts and keep hands, feet, and
loose clothing away from the moving parts of the equipment.
2.5 Towing Safety
Towing a large trailer requires special care. Both the trailer and vehicle
must be in good condition and securely fastened to each other to
reduce the possibility of an accident.
2.5.1 ALWAYS check that the hitch and coupling on the vehicle are rated
equal to, or greater than, the trailer's “gross vehicle weight rating”
(GVWR).
2.5.2 ALWAYS inspect the hitch and coupling for wear or damage. DO NOT
tow the trailer using defective parts.
2.5.3 ALWAYS make sure the coupling is securely fastened to the vehicle.
2.5.4 ALWAYS check the tires on the trailer for tread wear, inflation, and
condition. Replace worn tires.
2.5.5 ALWAYS connect the safety chains.
2.5.6 ALWAYS connect the breakaway cable safety hook to the bumper or
rear of the vehicle. DO NOT attach it to the hitch.
2.5.7 ALWAYS test the surge brakes on the trailer and the brakes on the
vehicle that will be used for towing.
2.5.8 ALWAYS make sure directional and trailer lights are connected and
working properly.
2.5.9 ALWAYS check that the lug nuts holding the wheels are tight and that
none are missing.
WARNING
Safety Information PT 6 /...
wc_si000098gb.fm 8
2.6 Reporting Trailer Safety Defects
If you believe your trailer has a defect which could cause a crash or
could cause injury or death, you should immediately inform the
National Highway Traffic Safety Administration (NHTSA) in addition to
notifying Wacker Corporation.
If NHTSA receives similar complaints, it may open an investigation;
and if it finds that a safety defect exists in a group of vehicles, it may
order a recall and remedy campaign. However, NHTSA cannot
become involved in individual problems between you, your dealer, or
Wacker Corporation.
To contact NHTSA, you may either contact the Auto Safety Hotline tollfree at 1-800-424-9393 (or 366-0129 in Washington DC area),
www.nhtsa.com, or write to NHTSA, U.S. Department of
Transportation, 400 7th Street SW, (NSA-11), Washington, DC 20590.
You can also obtain other information about motor vehicle safety from
the Auto Safety Hotline.
PT 6 /... Safety Information
wc_si000098gb.fm 9
2.7 Label Locations
wc_gr001145
13
7
6
3
8 10
9
5
6
4
12
11
2
Safety Information PT 6 /...
wc_si000098gb.fm 10
2.8 Safety Labels
Ref. Label Meaning
1
DANGER!
Engines emit carbon monoxide; operate
only in well-ventilated area. Read the
Operator’s Manual.
No sparks, flames, or burning objects
near the machine. Shut off the engine
before refueling.
2
CAUTION!
Use only clean, filtered diesel fuel.
3
CAUTION!
Read and understand the supplied
Operator’s Manuals before operating
this machine. Failure to do so increases
the risk of injury to yourself or others.
4
CAUTION!
Lifting point.
5
WARNING!
Hot surface!
6
WARNING!
Pressurized contents. Do not open
when hot!
7
WARNING!
Never pump volatile, flammable or low
flash point fluids. These fluids could
ignite or explode.
PT 6 /... Safety Information
wc_si000098gb.fm 11
8
Read Operator’s Manual.
Use hitch rated from trailer’s “Gross Vehicle Weight Rating”.
Securely attach trailer to tow vehicle.
Attach safety chains using cross pattern.
Attach breakdown chain to vehicle.
Check trailer lights.
9
10
A nameplate listing the model number,
item number, revision number, and
serial number is attached to each unit.
Please record the information found on
this plate so it will be available should
the nameplate become lost or damaged. When ordering parts or requesting service information, you will always
be asked to specify the model number,
item number, revision number, and
serial number of the unit.
11
CAUTION!
Service oil bath air filter daily before
starting engine. Severe engine damage
will occur if oil bath filter is low or empty.
Ref. Label Meaning
INSTRUCTIONS DE REMORQUAGE
TOWING INSTRUCTIONS ABSCHLEPPINSTRUKTIONEN INSTRUCCIONES DE REMOLQUE
1. READ OPERATOR'S MANUAL.
2. USE HITCH RATED FRO TRAILER'S
"GROSS VEHICLE WEIGHT RATING".
3. SECURELY ATTACH TRAILER TO TOW
VEHICLE.
4. ATTACH SAFETY CHAINS USING CROSS
PATTERN.
5. ATTACH BREAKDOWN CHAIN TO VEHICLE.
6. CHECK TRAILER LIGHTS.
1. BETRIEBSVORSCHRIFT LESEN.
2. ANHANGEVORRICHTUNG VERWENDEN,
DIE DER GESAMTBETRIEBSGEWICHTSKLASSE
ENTSPRICHT.
3. ANHANGER SICHER AM ZUGFAHRZEUG
BEFESTIGEN.
4. SICHERHEITSKETTEN KREUZWEISE ANBRINGEN.
5. ABREISSKETTE AM FAHRZEUG ANBRINGEN.
6. ANHANGERLEUCHTEN PRUFEN.
1. LEA EL MANUAL DEL OPERARIO.
2. UTILICE UN ACOPLE CORRECTAMENTE
CLASIFICADO PARA LA "CLASE DE PESO BUTO"
DEL VEHICULO DEL REMOLQUE.
3. ASEGURESE DE AMARRAR CORRECTAMENTE
EL REMOLQUE AL VEHICULO DE REMOLQUE.
4. FIJE EN CRUZ LAS CADENAS DE SEGURI DAD.
5. FIJE EN EL VEHICULO DE REMOLQUE L A CADENA
DE DESPRENDIMIENTO.
6. CONTROLE LAS LUCES DEL REMOLQUE.
1. LIRE LA NOTICE D'EMPLOI.
2. UTILISER UN GROCHET D'ATTELAGE CONFORME AU
DEBIT NOMINAL DU POIDS BRUT DE VEHICULE DU
TRACTEUR.
3. ATTACHER LA REMORQUE FERMEMENT AU VEHICULE
TRACTEUR.
4. ATTACHER LES CHAINES DE SURETTE EN UTILISANT
UNE METHODE CROISEE.
5. ATTACHER LA CHAINE DE REMORQUAGE AU VEHICULE.
6. VERIFIER LES LAMPES DE LA REMORQUE.
114894
Safety Information PT 6 /...
wc_si000098gb.fm 12
12
CAUTION!
Engine overheat - Check fan belt.
This machine may be covered by one or
more patents.
Ref. Label Meaning
PT 6 /... Technical Data
wc_td000099gb.fm 13
3. Technical Data
3.1 Engine
Item No.
PT 6LT
0007175
PT 6LS
0007174
Engine
Engine type Three cylinder, 4-cycle air cooled, diesel engine
Engine make Lombardini
Engine model 11LD625-3
Rated power
kW (Hp)
22 (30)
Alternator
Amp
14
Engine speed - full load
rpm
2500 ± 100
Engine speed - idle
rpm
1500 ± 100
Valve clearance (cold)
intake:
exhaust:
mm (in.)
0.15 (0.006)
0.20 (0.007)
Air cleaner
type
Oil Bath
(Do not use oil lighter than 20W)
Battery
V / size
12V / 31
Fuel
type
No. 2 Diesel
Fuel tank capacity
l (gal.)
98 (26)
Technical Data PT 6 /...
wc_td000099gb.fm 14
3.2 Pump
3.3 Lubrication
3.4 Trailer
Item No.
PT 6LT
0007175
PT 6LS
0007174
Pump
Weight
kg (lbs.)
1090 (2400) 850 (1870)
Max. suction lift
m (ft.)
7.5 (25)
Max. total head
m (ft.)
30.5 (100)
Max. discharge
m³/h (gpm)
295 (1300)
Suction / discharge dia.
mm (in.)
150 (6)
Max. solid size
mm (in.)
50 (2)
Item No.
PT 6LT
0007175
PT 6LS
0007174
Lubrication
Engine
type / qty.
SAE 15W40 CD Rated / 5.0 L (5 qts.)
Pump seal housing
type / qty.
SAE 15W40 / 800ml (27oz.)
Pump bearing housing
type / qty.
SAE 15W40 / 470ml (16oz.)
Item No.
PT 6LT
0007175
Trailer
Power take-off
type
Direct Drive with Flex-Coupling
Trailer tounge weight
kg (lbs)
75 (165)
Gross vehicle weight
Rating
kg (lbs)
1588 (3500)
Tire size 205 / 75D-14
Tire load Rating C
PT 6 /... Technical Data
wc_td000099gb.fm 15
3.5 Dimensions
wc_gr001154
Operation PT 6 /...
wc_tx000261gb.fm 16
4. Operation
4.1 Operation and Service Locations
See Graphic: wc_gr003183
Ref. Description Ref. Description
1 Engine oil dipstick 14 Engine oil filter
2 Fuel filter 15 Battery box
3 Manual fuel pump lever 16 Trailer hitch
4 Engine oil drain plug 17 Jack stand
5 Engine throttle solenoid 18 Rear stabilizers
6 Control panel 19 Drain cover
7 Ignition switch 20 Front impeller cover
8 Hour meter 21 Suction port
9 Bearing/Seal housing 22 Priming cover
10 Lifting point 23 Discharge port
11 Engine oil fill cap 24 Fuel fill cap
12 Inspection cover 25 License plate holder
13 Air cleaner 26 Circuit breaker
PT 6 /... Operation
wc_tx000261gb.fm 17
wc_gr003183
18
17
15
16
7
8
9
6
26
23
22
21
20
19
25
12
11
13
10
14
24
1
2
45
3
Operation PT 6 /...
wc_tx000261gb.fm 18
4.2 Application
The PT6 is a self-priming, high performance trash pump designed to
handle water and solids up to 50.8 mm (2.0 in). It is built for the
demands of construction, mining, municipality, farm and marine
applications.
4.3 Recommended Fuel
The engine requires No. 2 diesel fuel. Use only fresh, clean fuel. Fuel
containing water or dirt will damage the fuel system. Consult the
engine owner’s manual for complete fuel specifications.
4.4 Before Starting the Engine
4.4.1 Read and understand the safety and operating instructions at the
beginning of this manual.
4.4.2 Check:
• The oil level in the engine
• The fuel level
• The condition of the air cleaner
• The tightness of the external fasteners
• The condition of the fuel lines
NOTICE: DO NOT run the engine without oil in the oil-bath air cleaner
or severe engine damage will result.
4.5 Before Starting the Pump
See Graphic: wc_gr001165
4.5.1 Check the bearing/seal housing (f) for proper oil level. Also check the
oil for water contamination. Do not operate the pump if contamination
is found.
4.5.2 Position the pump as near to the water as possible, on a firm, flat
surface. Keep the pump level.
4.5.3 Lower the rear stabilizers (a) until they contact the ground. Lock the
stabilizers in position with the pins.
4.5.4 Crank down the jack stand (b) on the front of the trailer. Block both
wheels to keep the pump from rolling during operation.
PT 6 /... Operation
wc_tx000261gb.fm 19
4.5.5 If necessary, rotate the discharge elbow to direct water flow in the
desired direction.
4.5.6 Attach the suction hose to the suction port (d). Attach the discharge
hoses to the discharge port (e). Check and tighten the clamps and
coupling to make sure the hoses are securely fastened.
A loose connection can create a serious safety hazard should it break
loose while the pump is running.
4.5.7 Attach the suction strainer to the suction hose to prevent large debris
from being pulled into the pump.
4.5.8 Prime the pump. To do so, open the cover (c) at the top of the pump
and fill the pump housing with water. The pump will not prime unless
this is done.
WARNING
wc_gr001165
a
b
f
c
d
e
g
Operation PT 6 /...
wc_tx000261gb.fm 20
4.6 To Start
See Graphic: wc_gr001166
4.6.1 Loosen the throttle lever knob (c) and set the engine throttle (d) to high
speed. Tighten the throttle lever knob.
4.6.2 Open the cover on the battery box (a) and turn and hold the ignition key
(b) to the ON position until the glow plug light on the control panel goes
out. Then, turn the ignition key to the START position. Release the key
after the engine starts. It will spring back into the ON position.
Note: The engine will not start if the oil pressure is too low or the
cylinder head temperature exceeds the preset value.
The pump should prime and begin pumping within a minute or two. At
high suction lifts or low engine speeds, the pump will require a longer
period of time to prime. If the pump does not prime, shut off the engine
and refer to the section on troubleshooting.
NOTICE: DO NOT crank the starter for more than 15–20 seconds at a
time; the starter motor can overheat and be damaged.
NOTICE: DO NOT run the pump dry for long periods of time or run the
pump without oil in the bearing/seal housing. The mechanical seal
could overheat and be damaged.
Adjusting Pump Flow:
Pump flow can be set by adjusting the speed of the engine.
4.6.1 To set the engine speed, loosen the throttle lever knob (c) and adjust
the throttle lever (d).
4.6.2 Tighten the throttle lever knob to hold the throttle lever in place while
the pump is operating. When priming the pump, set the throttle lever at
full speed until the pump flow begins; then, adjust the throttle lever to
the desired speed.
4.7 To Stop
See Graphic: wc_gr001166
4.7.1 Turn ignition key (b) to OFF.
NOTICE: If temperatures are expected to fall below freezing during the
night, be sure to drain the pump housing (e) while the pump is not in
use.
PT 6 /... Operation
wc_tx000261gb.fm 21
4.8 Automatic Shutdown System
The engine is equipped with an automatic shutdown system to protect
it from damage should a low oil pressure or a high cylinder temperature
condition occur.
During a low-oil-pressure condition, the low-oil-pressure switch opens
cutting power to the throttle solenoid. During a high-cylindertemperature condition, the engine temperature switch shorts to
ground. This trips the circuit breaker and cuts power to the throttle
solenoid. Whenever power is cut to the throttle solenoid, it deenergizes. When the throttle solenoid is de-energized, the engine
stops.
If the engine stops unexpectedly and the circuit breaker trips, it is a
sign of a problem with the fan belt. Check the fan belt and replace it if
necessary. Reset the circuit breaker before resuming use of the pump.
If the engine stops unexpectedly without the circuit breaker tripping,
check the amount of oil in the engine crankcase. Fill the engine
crankcase with oil as needed.
4.9 Important Operation Note
NOTICE: DO NOT run the pump in less than 1.2 m (4.0 ft.) of water!
At this level the water begins to form a funnel down to the bottom of the
suction line and strainer, allowing the pump to draw in air. The mixture
of air and water leads to a condition known as cavitation, which will
quickly destroy the impeller and the water chamber inside the pump
housing
wc_gr001166
a
b
d
c
e
Operation PT 6 /...
wc_tx000261gb.fm 22
4.10 Hoses
Suction hoses must be rigid enough not to collapse. Make sure the
suction hose is in good condition. A hole or tear in the suction hose
above the water line will prevent the pump from priming.
NOTICE: Always use a strainer on the end of the suction hose to
prevent pulling in large debris which could clog the pump or jam the
impeller.
Discharge hoses are usually thin-walled collapsible hoses; however,
rigid hoses like those used on the suction side can also be used.
Lay the discharge hose as straight as possible. Avoid sharp bends and
turns.
Note: Both suction and discharge hoses are available through Wacker
Corporation.
4.11 Hose Couplings
A variety of couplings are available to attach the hoses to the suction
and discharge ports as well as to connect two hose lengths together.
4.12 Hose Clamps
Suction Hose to Inlet Port Coupling
At least two T-bolt clamps are recommended for connection of the
suction hose to the pump inlet. Index clamps at 90° intervals for best
seal. Add additional clamps if the pump has trouble priming.
Note: The smallest air leak on the suction side of the pump will prevent
the pump from priming.
Other hose connections
Normally only one T-bolt or worm gear clamp is required to hold the
hoses in place. In some cases, variances in hose diameters may make
it necessary to add extra clamps to maintain a reliable connection.
PT 6 /... Operation
wc_tx000261gb.fm 23
4.13 Strainer
NOTICE: DO NOT use a strainer with holes larger than the maximum
solid-size rating of the pump—50 mm (2 in.). DO NOT place the
strainer directly into mud or sand. Always keep the strainer suspended
in the liquid being pumped. Failure to follow the above directives may
cause pump damage.
4.14 Discharge Port
See Graphic: wc_gr001184
The discharge port (a) can be rotated 360° to direct water flow in any
direction.
To rotate the elbow:
4.14.1 Remove the locknuts (b) which hold the port to the pump housing.
4.14.2 Lift the port off the studs and position it as desired. Always check the
gasket and replace it if it is damaged.
4.14.3 Tighten the locknuts evenly. Torque them to 160 Nm (118 ft. lbs).
wc_gr001184
a
b
Operation PT 6 /...
wc_tx000261gb.fm 24
4.15 Covers
See Graphic: wc_gr003210
DO NOT open the covers or reach into the pump while the engine is
running! The spinning impeller could cause a severe injury.
DO NOT run the pump with any of the covers open or missing.
Drain/Priming Cover:
Clean-out covers are located on the top (a) and bottom (b) of the
pump. The top cover is also used to add water to the pump housing for
priming. To open a cover, loosen the knob and swing the cover to the
side.
Grease the rubber gasket under each cover occasionally to prevent it
from sticking to the metal and tearing.
Impeller Cover:
The impeller cover (c) can be removed to clean the pump, set the
impeller clearance, and inspect the pump interior.
To remove the impeller cover and elbow:
4.15.1 Turn the inner star wheel (d) in until it is seated tightly against the
impeller cover.
4.15.2 Turn the outer star wheel (e) in until the cover is pulled out of the
housing.
4.15.3 When the impeller cover is free of the housing, rotate the clamp (f)
counterclockwise and pull the impeller cover from the housing.
To install the impeller:
4.15.4 Place the impeller cover assembly into the housing with the arrow on
the casting pointing up. Rotate the clamp (f) into position.
4.15.5 Turn the outer star wheel out until it is seated against the end of the
threaded shaft (g).
4.15.6 Turn the inner star wheel out to push the impeller cover into the
housing. Hand tighten the inner star only!
4.15.7 After the impeller cover is installed, turn in the outer wheel to push the
clamp down over the impeller cover and secure it in place.
WARNING
PT 6 /... Operation
wc_tx000261gb.fm 25
wc_gr003210
3
1
2
e
g
3
1
2
d
a
b
c
f
Operation PT 6 /...
wc_tx000261gb.fm 26
4.16 Hitching and Towing the Trailer
See Graphic: wc_gr003185
Before hitching and towing the trailer, check the following:
• Check that the vehicle, towing hitch, and coupler have a rating
equal to or greater than the trailer's Gross Vehicle Weight Rating
(GVWR). See Technical Data for trailer weight.
• Check tread wear and inflation of the trailer’s tires. Make sure all
the lug nuts are in place and tight.
• Make sure that the trailer coupler and towing vehicle’s hitch are
compatible. The trailer is equipped with either a pintle-style coupler or a 2" or 2-5/16" ball coupler.
• Check the condition of the trailer’s coupler and the hitch on the
towing vehicle. DO NOT tow the trailer if the coupler or the hitch
are damaged.
• Check that the coupler and the hitch ball are clean; then, apply a
film of grease to the coupler and the hitch ball. A film of grease
will extend the coupler and ball life and eliminate squeaking.
• Check that all the pins and bolts on the tongue are secure.
To hitch the trailer:
4.16.1 Back your vehicle as close as possible to the trailer. It is easier and
safer to back the tow vehicle under the trailer than to pull the trailer to
the vehicle.
4.16.2 Check that the coupler locking device (h) is released.
4.16.3 Raise the trailer coupler using the tongue jack (d) to a height just above
the ball on the hitch. Carefully position the vehicle so the ball on the
hitch is under the coupler. Lower the jack until the coupler is all the way
down over the ball.
4.16.4 Check under the coupling to be sure that the ball clamp is below the
ball and not riding on top of it.
4.16.5 Clamp the coupler to the hitch ball. To be sure it is clamped and
securely in place, raise up on the trailer tongue. If it comes loose from
the ball, release the ball clamp and repeat step 3.
4.16.6 After the trailer is hitched to the towing vehicle, lock the rear stabilizers
(k) and the tongue jack (d) in the UP positions.
4.16.7 Make sure the wiring harness (g) is connected to the vehicle and that
the tail, stop, and turn lights (e) and side marker lights (f) work.
4.16.8 Connect the safety chains (c) in a crossing pattern under the trailer
tongue.
PT 6 /... Operation
wc_tx000261gb.fm 27
When towing, maintain extra space between the vehicles and avoid
soft shoulders, curbs, and sudden lane changes. If you have not pulled
the trailer before, practice turning, stopping, and backing up in an area
away from traffic.
DO NOT exceed 55 mph when towing the trailer.
In most states, large trailers must be registered and licensed by the
State Department of Transportation. Before towing, be sure to check
licensing requirements.
Always refer to the applicable Department of Transportation
regulations before towing.
CAUTION
WARNING
wc_gr003185
h
d
c
f
g
k
e
Maintenance PT 6 /...
wc_tx000567gb.fm 28
5. Maintenance
5.1 Engine Fuel Delivery System Maintenance
Maintenance to the engine fuel delivery system should be performed
by an experienced mechanic familiar with diesel engines. For detailed
maintenance procedures on the engine fuel system, refer to the engine
manual supplied with the machine at the time of shipment.
5.2 Storage
If storing the machine longer than 30 days the following steps are
recommended.
5.2.1 Flush the pump and hose lines by pumping clean water for a few
minutes. If the pump was used for pumping salt water, be sure to use
fresh water when flushing it.
5.2.2 Change the engine oil.
5.2.3 Drain and clean the fuel tank. Replace the fuel filter.
5.2.4 Thoroughly clean the exterior of the pump and engine. Visually inspect
the machine for signs of damage or loose bolts.
5.2.5 Remove the covers and clean the pump interior. Wipe or spray all
interior surfaces with a rust-inhibiting oil.
5.2.6 Change the oil in the seal and bearing housings.
5.2.7 Replace the covers. Seal the suction and discharge openings with
tape.
5.2.8 Remove the battery from the machine and store it in a clean dry area.
Charge the battery once a month to maintain condition of the
electrolyte.
5.2.9 Store the machine indoors in a clean, dry area. If the machine must be
stored outside, wrap it tightly.
PT 6 /... Maintenance
wc_tx000567gb.fm 29
5.3 Periodic Maintenance Schedule
The chart below lists basic engine maintenance. Refer to the engine
manufacturer’s Operation Manual for additional information on engine
maintenance.
* Change more often in dusty conditions. Refer to engine manufacturer’s manual.
Lombardini 11LD625-3 Engine
Daily
before
starting
Every
125
hrs.
Every
250
hrs.
Every
500
hrs.
Check engine oil. Fill to correct level.
Clean air cleaner.
Check condition and tension on fan belt.
Change oil in engine crankcase.*
Change engine oil filter.
Change fuel filter
Clean engine cooling fins.
Check valve clearance.
Tighten fittings and clean injectors
Replace fan belt.
Machine
Daily
before
starting
Every
100
hrs.
Every
250
hrs.
Every
500
hrs.
Check external hardware.
Open pump housing cover and remove any
debris from inside of pump housing.
Check oil level in seal housing. Fill to correct level.
Check bearing/seal housing for oil or water
leaks.
Check oil level in bearing housing.
Drain water from water separator in fuel line.
Change oil in seal housing.
Change oil in bearing housing.
Check coupling bolt tightness.
Maintenance PT 6 /...
wc_tx000567gb.fm 30
5.4 Air Cleaner
See Graphic: wc_gr003175
Inspect the air cleaner and change the oil in the oil bath daily before
starting the engine. In dusty conditions, check the condition of the oil
in the air cleaner several times during the day. Change the oil if it
appears thick or gritty. Clean the air cleaner often.
Keep the oil bowl filled with clean oil up to level mark (a).
NOTICE: NEVER run the engine without oil in the air cleaner! Severe
engine damage will result.
To clean the air cleaner:
5.4.1 Release the snap clips (b) and remove the oil bowl (c).
5.4.2 Remove the filter element (d) from the oil bowl. Be careful not to
damage the rubber seal ring (e) on the element.
5.4.3 Rinse the filter element with diesel fuel or kerosene. DO NOT use
gasoline. Allow the filter element to air dry completely.
5.4.4 Change the oil in the oil bowl. Fill the oil bowl to the level mark (a).
Place the filter element in the oil bowl and install the oil bowl on air the
cleaner.
O
i
l
wc_gr003175
a
c
e
d
b
PT 6 /... Maintenance
wc_tx000567gb.fm 31
5.5 Fuel Filter
See Graphic: wc_gr001188
Change the engine fuel filter every 250 hours of operation.
5.5.1 Remove the filter (a) from the engine block.
5.5.2 Install a new filter. If necessary, prime the fuel lines as described in the
next section.
5.6 Priming the Fuel System
See Graphic: wc_gr003175
If the fuel tank has been run completely dry, it will be necessary to
prime the fuel system.
To prime fuel system:
5.6.1 Remove the small plug from the top of the water separator and prefill
the element with clean diesel fuel.
5.6.2 Loosen the bleed screw (a) on the fuel filter and pump the manual lever
on the fuel pump (b) until fuel flows freely from the screw hole. Tighten
the bleed screw.
5.6.3 Loosen the bleed screw (c), starting with the injector closest to the fuel
filter, and manually pump until fuel flows freely from the screw hole.
Tighten the bleed screw. Repeat for each injector.
wc_gr001188
a
wc_gr003175
a
c c
c
b
Maintenance PT 6 /...
wc_tx000567gb.fm 32
5.7 Engine Lubrication
See Graphic: wc_gr000057 & wc_gr001187
Check the engine oil level daily. Add oil as required.
To check oil:
Place the machine on a level surface, remove the dipstick and check
that the oil level is at the top mark. Add oil through the oil filler cap (a)
on top of engine, checking occasionally with dipstick; DO NOT overfill.
Suggested oil grades:
Use only diesel engine oil API service rating CD or equivalent.
ENGINE OIL VISCOSITY GRADE - AMBIENT TEMPERATURE
Ambient
Temperature
(Multi-grade)
-25ºC
(-13ºF)
-15ºC
(5ºF)
-20ºC
(-4ºF)
15ºC
(59ºF)
30ºC
(86ºF)
0ºC
(32ºF)
SAE 10W-30
SAE 15W-40, 20W-40
SAE 5W-20
wc_gr000057
wc_gr001187
b
c
a
PT 6 /... Maintenance
wc_tx000567gb.fm 33
5.8 Engine Oil
See Graphic: wc_gr001187
Change the oil and oil filter (b) every 250 hours. On new machines,
change the oil after the first 50 hours of operation. Drain the oil while
the engine is still warm.
5.8.1 Remove the oil drain plug (c) to the drain oil.
Note: In the interests of environmental protection, place plastic
sheeting and a container under the machine to collect the liquid which
drains off. Dispose of this liquid properly.
5.8.2 Install the drain plug.
5.8.3 Remove the oil filler cap (a) and fill the engine crankcase with the
recommended oil.
Oil Capacity: 5 liters (5 qts.) SAE15W40, CD rated
5.8.4 Install the oil filler cap.
5.9 Valve Clearances
See Graphic: wc_gr000476
Check and adjust the valve clearance every 500 hours.
Set the clearance when the engine is cold.
5.9.1 Remove the rocker arm cover and check the gaskets for breakage.
5.9.2 Bring each cylinder piston to top dead center on the compression
stroke and set the clearance.
Valve clearance: 0.20 mm (0.008 in.).
5.9.3 Replace the rocker arm cover and tighten bolts to 19 Nm (14 ft.lbs.).
wc_gr000476
Maintenance PT 6 /...
wc_tx000567gb.fm 34
5.10 Fan Belt
See Graphic: wc_gr001190
Check the tension on the fan belt every 125 hours. Replace the fan belt
every 500 hours.
5.10.1 Remove the belt guard (a) and check the fan belt (b) for cracks or
splitting.
5.10.2 To tighten the fan belt, add or remove spacers (c) located between the
fan pulley halves (d). Spacers are 0.5, 1.0, 2.0 mm (0.017, 0.034,
0.068 in.) thick.
5.10.3 To check fan belt tension, press the fan belt halfway between belt
pulleys with a 10 kg (22 lb.) load or strong thumb pressure. The fan belt
should deflect 1 cm (3/8 in.).
wc_gr001190
a
b
d
c
PT 6 /... Maintenance
wc_tx000567gb.fm 35
5.11 Pump Housing Mounting Bolts
See Graphic: wc_gr003178
Tighten the mounting bolts (a) on the pump housing after the first 50
hours of operation. Inspect the bolts periodically thereafter and tighten
when required. Torque the bolts to 330 Nm (243 ft. lbs.).
wc_gr003178
a
Maintenance PT 6 /...
wc_tx000567gb.fm 36
5.12 Mechanical Seal Lubrication
See Graphic: wc_gr003179
Check the oil in the seal housing daily before starting the pump. Check
its level and check it for signs of water contamination. If water
contamination is found, change the oil immediately. Otherwise,
change the oil every 100 hours of pump operation.
Note: It is normal for some water to pass through the mechanical seal;
however, if water contamination is heavy and oil feels watered down,
inspect the mechanical seal for signs of wear or damage.
To check the oil level:
5.12.1 Remove the plastic fill plug (a) from the top of the bearing housing. The
oil level should touch the base of the plug opening. Add oil as required.
To change the oil:
5.12.2 Remove the drain plug (c) from the bottom of the bearing housing.
5.12.3 Replace the drain plug and add oil (approximately 800 ml (27 oz.)
15W40) through the port (a) on top of the bearing housing until the oil
level is at the base of the fill plug opening.
wc_gr003179
c
d
a
b
PT 6 /... Maintenance
wc_tx000567gb.fm 37
5.13 Bearing Housing Lubrication
See Graphic: wc_gr003179
Check oil level in housing daily before starting. Add oil as required.
Change oil every 300 hours.
To check oil level:
5.13.1 Remove plastic fill plug (b) from top of bearing housing. Oil level
should be near center of drive shaft. Add oil as required.
To change oil:
5.13.1 Remove plug (d) from bottom of bearing housing.
5.13.2 Replace drain plug and add 470 ml (16 oz.) of 15W40 oil through port
(b) on top of bearing housing. DO NOT overfill housing.
Inspect drained oil. If oil is dirty or feels watered down, inspect pump
and bearing housing seals.
Maintenance PT 6 /...
wc_tx000567gb.fm 38
5.14 Impeller Clearance
See Graphic: wc_gr003206
Sand, dirt, and debris will cause the impeller to wear. If the pump’s
performance drops over time, check and adjust the clearance between
the impeller and the insert.
5.14.1 Shut down the machine.
DO NOT reach into or insert anything into the pump while the engine
is running!
DO NOT run the pump with the impeller cover removed.
5.14.2 Open the bottom drain cover and drain the pump.
5.14.3 Remove the suction flange (a) and the flapper gasket (b) from the front
of the pump.
Impeller edges can become extremely sharp; use care when working
on the pump to reduce the risk of being cut.
5.14.4 Clean the impeller (d) with a 50-50 mixture of bleach and water before
working on it.
5.14.5 Reach inside the pump through the suction port, and use a feeler
gauge (c) to check the gap between the impeller and the insert (e). The
pump will operate most efficiently when the gap is maintained between
0.15–0.75 mm (0.005–.025 in.). Larger gaps are allowable but may
reduce pump output slightly.
5.14.6 If necessary, add shims (f) between the insert and the impeller cover
(g) to decrease the gap between the impeller and the insert. The insert
is attached to the back side of the impeller cover. To add shims:
• Remove the impeller cover.
• Remove the screws that secure the insert to the impeller cover.
• Add shims as required and recheck the clearance gap.
• After the proper shimming has been determined, use a high-
strength threadlocking compound on the screws and secure the
shims and insert to the impeller cover. Torque the screws to 26
Nm (19 ft.lbs.).
5.14.7 Reinstall the suction flange and the flapper gasket.
WARNING
CAUTION
PT 6 /... Maintenance
wc_tx000567gb.fm 39
wc_gr003206
a
b
g
c
d
d
e
e
f
g
g
e
f
g
0.15–0.75 mm
(0.005–0.025 in.)
Maintenance PT 6 /...
wc_tx000567gb.fm 40
5.15 Cleaning the Engine Cooling Fins
See Graphic: wc_gr000480
The engine is air-cooled and depends on the cylinder cooling fins to
dissipate heat. In dusty conditions the cooling fins may become
clogged or covered with dust, reducing engine cooling.
Remove the engine cover and inspect the engine cooling fins every
100 hours.
Remove dirt build-up using a brush and diesel fuel or kerosene. Dry
the engine using compressed air. Replace the inspection cover before
starting the engine.
5.16 Battery
See Graphic: wc_gr003177
The battery (a) supplied on this machine is a heavy-duty, lead acid
battery, rated at 12V, 160 Ah, BCI group 31. Check the level of the
electrolyte in the battery periodically and add distilled water as required
to keep the electrolyte at the correct level.
Keep the battery terminals clean and tighten them as required.
In cold weather, diesel engines must crank at a fairly high speed.
Maintain your battery at full charge and use a replacement battery with
the highest cold-cranking amperage available to improve your cold
weather starting capabilities.
wc_gr003177
a
PT 6 /... Maintenance
wc_tx000567gb.fm 41
5.17 Lifting the Machine
See Graphic: wc_gr003180
Attach a sling or chain to the lifting eye (a) using a suitable hook or
shackle. Each lifting device must have capacity of at least 1090 Kg
(2400 lbs.).
Only use steel ropes or chains for hoisting. The rope or chain must
have the suitable specified lifting capacity of 1090 Kg (2400 lbs.). Do
not use improvised ropes or chains.
Never use any other part of the PT6 Pump to lift the machine, as
severe damage may occur.
Do not stand under or get onto the machine while it is being hoisted or
moved.
WARNING
CAUTION
WARNING
wc_gr003180
a
Maintenance PT 6 /...
wc_tx000567gb.fm 42
5.18 Tires
Keep the tires properly inflated and make sure they have the proper
load rating. Under-inflated tires may cause a blowout which could
result in fishtailing or loss of control of the towing vehicle.
Always maintain full air pressure as indicated by the tire manufacturer
on the tire's sidewalls. Check air pressure when the tires are cold,
before you move the trailer. When the trailer tires become worn or
damaged, replace them promptly with the same type, size, and load
capacity as the original tires.
For convenience and safety, it is recommended that you carry a spare
wheel and tire.
5.19 Wheels and Lug Nuts
Loose or missing lug nuts can cause you to lose a wheel! Keep all lug
nuts tight.
Before each trip, check for loose or missing lug nuts. When replacing
lug nuts, make sure the replacement nut matches the original nut
exactly. While the threads of the nut may match, the nut may be a size
that does not hold the wheel securely against the hub even when fully
tightened. Torque nuts evenly in increments to 115 Nm (85 ft.lbs.).
Note: During normal use, the lug nuts will seat during the first one
hundred miles resulting in a drop in torque. Each nut should be
checked at that time and torqued to the proper value.
5.20 Tongue Jack
See Graphic: wc_gr003181
All trailers are equipped with a tongue jack (d). Use the tongue jack to
lift and lower the trailer coupling on or off the tow vehicle hitch.
WARNING
WARNING
PT 6 /... Maintenance
wc_tx000567gb.fm 43
5.21 Safety Chains
See Graphic: wc_gr003181
Failure to properly attach the safety chains between your trailer and
the tow vehicle can result in a runaway trailer; should the coupler and
hitch separate while towing.
Safety chains (c) on your trailer provide added protection that it will not
become separated from the towing vehicle. Make sure the chains are
correctly attached between the towing vehicle and the trailer before
each trip.
Chains should be attached in a crossing pattern under the trailer
tongue. The chains will prevent the trailer tongue from dropping to the
ground if the trailer separates from the hitch. Rig the chains as tight as
possible with just enough slack to permit tight turns.
If a chain must be replaced, do not substitute a lighter weight chain.
This trailer must be equipped with two chains, each with a minimum
breaking strength of no less than the Gross Vehicle Weight Rating
(GVWR) of the trailer. All chain attachments, including hooks, must be
at least as strong as the chain. Replace damaged chains. DO NOT
weld or attempt to repair damaged chains.
WARNING
wc_gr003181
c
d
Maintenance PT 6 /...
wc_tx000567gb.fm 44
5.22 Lights
See Graphic: wc_gr003182
Check and make certain that all trailer lights are working before towing
the trailer.
State and federal regulations require that all types of trailers be
equipped with tail, stop and turn lights (e) and side marker lights (f).
A special wiring harness (g) for connecting the trailer lights to the
lighting system of the tow vehicle is supplied with the trailer.
WARNING
wc_gr003182
e
f
g
PT 6 /... Maintenance
wc_tx000567gb.fm 45
5.23 Wiring Diagram — Trailer
Wire Colors
B Black R Red Y Yellow Or Orange
G Green T Tan Br Brown Pr Purple
L Blue V Violet Cl Clear Sh Shield
P Pink W White Gr Gray LL Light blue
Maintenance PT 6 /...
wc_tx000567gb.fm 46
5.24 Wiring Diagram (0007174 > Rev 119; 0007175 > Rev 122)
+
–
+
–
wc_gr003163
R
R
B
R
W
B
L
W
Br
W
Br
L
Br
B
BR
L
B
W
Br
Y/R
Br
L
Gr
W/B
Y/G
B
B
Y
W
B
R
Y
Br
L
L
Br
P
G/W
G
L
R
Or
RR
G
W/R
V/B
W/R
G
Or
V
W
W
Y
Y
Y
YYR
B
B
L
L
Y
Y
P/B
BL
V/B
G/Y
B
P/B
P/B
50
30
15/54
86 85
30
87
1
3
4
5
6
7
8
25
26
9
10
11
12
13
22
21
14
23 23
15
16
17
18
24
19
20
2
PT 6 /... Maintenance
wc_tx000567gb.fm 47
5.25 Wiring Diagram Components
(0007174 > Rev 119; 0007175 > Rev 122)
Ref. Component Ref. Component
1 Cylinder head temperature
switch
14 Oil temperature sensor
2 Engine harness 15 Engine Control Unit (ECU)
3 Extension harness 16 Battery
4 Glow plug 17 Starter solenoid
5 Throttle solenoid 18 Voltage regulator
6 Hour meter 19 Low oil pressure switch - N.O.
7 Control panel 20 Low oil pressure switch - N.C.
8 Keyswitch 21 Diagnostic port
9 Glow plug relay 22 Cam RPM sensor
10 15A Fuse 23 Control solenoids
11 20A Circuit breaker 24 Engine alternator
12 Pump sensor 25 80A Fuse
13 Engine RPM sensor 26 Control panel harness
Wire Colors
B Black R Red Y Yellow Or Orange
G Green T Tan Br Brown Pr Purple
L Blue V Violet Cl Clear Sh Shield
P Pink W White Gr Gray LL Light blue
Maintenance PT 6 /...
wc_tx000567gb.fm 48
5.26 Wiring Diagram (0007174 < Rev 120; 0007175 < Rev 123)
+
–
+
–
wc_gr003173
W
Or
Br
G
B
L
Y/G
B
B
Y
W
R
Y
L
Br
G
V
W
W
Y
Y
Y
YY R
B
B
R
L
L
L
G/Y
B
50
30
15/54
1
3
5
6
7
8
4
10
11
13
14
9
12
6
15
2
R
PT 6 /... Maintenance
wc_tx000567gb.fm 49
5.27 Wiring Diagram Components
(0007174 < Rev 120; 0007175 < Rev 123)
Ref. Component Ref. Component
1 Coolant temperature sensor 9 Voltage regulator
2 Engine harness 10 15A Fuse
3 Extension harness 11 20A Circuit breaker
4 Control panel harness 12 Engine alternator
5 Throttle solenoid 13 Battery
6 Hour meter 14 Starter solenoid
7 Control panel 15 Oil pressure failure sensor
8Keyswitch ----
Wire Colors
B Black R Red Y Yellow Or Orange
G Green T Tan Br Brown Pr Purple
L Blue V Violet Cl Clear Sh Shield
P Pink W White Gr Gray LL Light blue
Maintenance PT 6 /...
wc_tx000567gb.fm 50
5.28 Basic Troubleshooting
Problem / Symptom Reason / Remedy
Engine does not start. • Fuel tank empty.
• Wrong type of fuel.
• Old fuel. Drain tank, change fuel filter, and fill with
fresh fuel.
• Fuel system not primed.
• Battery connections loose or corroded. Battery
dead. Electrolyte low.
• Engine oil level low.
• Engine hot.
• Ignition switch defective.
• Throttle solenoid defective.
• Electrical connections loose or broken.
• Engine faulty.
Engine is hard to start. • Dirt or debris inside pump housing blocking move-
ment of impeller.
• Battery charge low.
• Engine faulty.
Engine starts but pump does
not take in water.
• Pump housing not filled with water.
• Strainer on suction hose plugged.
• Suction hose damaged. Air leak above water line.
• Air leak at suction port.
• Pump too high above water line.
• Engine speed too low.
• Debris collecting in pump housing.
Pump takes in water but little
or no discharge.
• Suction strainer partially plugged.
• Impeller worn. Shim insert.
• Discharge hose kinked or blocked.
• Engine speed too low.
Engines stops by itself. • No fuel.
• Engine oil pressure low.
• Engine too hot.
Wacker Construction Equipment AG · Preußenstraße 41 · D-80809 München · Tel.: +49-(0)89-3 54 02 - 0 · Fax: +49 - (0)89-3 54 02-3 90
Wacker Corporation · P.O. Box 9007 · Menomonee Falls, WI 53052-9007 · Tel. : (262) 255-0500 · Fax: (262) 255-0550 · Tel. : (800) 770-0957
Wacker Asia Pacific Operations · Skyline Tower, Suite 2303, 23/F · 39 Wang Kwong Road, Kowloon Bay, Hong Kong · Tel. +852 2406 60 32 · Fax: +852 2406 60 21
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