MODEL H8191
3600 PSI DIESEL PRESSURE
WASHER
OWNER'S MANUAL
COPYRIGHT © AUGUST, 2007 BY GRIZZLY INDUSTRIAL, INC.
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
#LO9708 PRINTED IN CHINA
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Table of Contents
INTRODUCTION............................................................................................................................... 2
Foreword .................................................................................................................................... 2
Contact Info................................................................................................................................ 2
General Identification ................................................................................................................. 4
SECTION 1: SAFETY....................................................................................................................... 5
Safety Instructions for Machinery............................................................................................... 5
Additional Safety Instructions for Pressure Washers................................................................. 7
SECTION 2: SETUP......................................................................................................................... 8
Unpacking .................................................................................................................................. 8
Inventory..................................................................................................................................... 8
Assembly.................................................................................................................................... 9
SECTION 3: OPERATIONS ........................................................................................................... 10
Connections and Controls........................................................................................................ 10
Break-In.................................................................................................................................... 11
Adjusting Pressure................................................................................................................... 11
Changing Nozzles.................................................................................................................... 11
Applying Chemicals.................................................................................................................. 12
Drawing Water from Standing Water Source........................................................................... 13
Spray Gun Lock ....................................................................................................................... 14
Starting..................................................................................................................................... 14
Shutdown Procedure................................................................................................................ 15
SECTION 4: ACCESSORIES......................................................................................................... 16
SECTION 5: MAINTENANCE ........................................................................................................ 17
Schedule .................................................................................................................................. 17
General Maintenance............................................................................................................... 18
Engine Oil and Filter Service ................................................................................................... 18
Pump Oil Change..................................................................................................................... 19
Air Filter Service....................................................................................................................... 20
Fuel Filter Change.................................................................................................................... 21
Troubleshooting........................................................................................................................ 22
Pump Parts Breakdown ........................................................................................................... 23
Engine Block Parts Breakdown................................................................................................ 25
Engine Cylinder Head Parts Breakdown.................................................................................. 26
Engine Piston and Crank Parts Breakdown............................................................................. 27
Engine Fuel Tank Parts Breakdown ........................................................................................ 28
Engine Lubrication/Speed Parts Breakdown ........................................................................... 29
Engine Recoil Starter Parts Breakdown................................................................................... 30
Engine Air Filter, Muffler, and Fuel Pump Parts Breakdown ................................................... 31
Engine Electric Start Parts Breakdown.................................................................................... 32
Frame and Hardware Parts Breakdown................................................................................... 33
Machine Labels Breakdown..................................................................................................... 34
WARRANTY AND RETURNS........................................................................................................ 37
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INTRODUCTION
Contact Info
Foreword
If you have any comments regarding this manual,
please write to us at the address below:
We are proud to offer the Model H8191 9HP 3600
PSI Diesel Pressure Washer. This machine is part
of a growing Grizzly family of fine power tools.
When used according to the guidelines set forth
in this manual, you can expect years of trouble-
free, enjoyable operation and proof of Grizzly’s
commitment to customer satisfaction.
Grizzly Industrial, Inc.
Technical Documentation Manager
P.O. Box 2069
C
/O
Bellingham, WA 98227-2069
Email: [email protected]
The specifications, drawings, and photographs
illustrated in this manual represent the Model
H8191 when the manual was prepared.
However, owing to Grizzly’s policy of continuous
improvement, changes may be made at any time
with no obligation on the part of Grizzly.
We stand behind our machines. If you have any
service questions or parts requests, please call or
write us at the location listed below.
Grizzly Industrial, Inc.
1203 Lycoming Mall Circle
Muncy, PA 17756
Phone: (570) 546-9663
Fax: (800) 438-5901
For your convenience, we always keep current
Grizzly manuals available on our website at www.
grizzly.com. Any updates to your machine will
be reflected in these manuals as soon as they
are complete. Visit our site often to check for the
latest updates to this manual!
E-Mail: [email protected]
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General Identification
B
C
A
D
L
E
F
K
J
I
G
H
Figure 1. General component identification
A. Electric Start Switch
B. Spray Gun Nozzles
C. Spray Gun
G. Pump Output Port
H. Pump Input Port
I. Input Hose
D. High Pressure Hose
E. Fuel Tank
J. Spray Gun Wand
K. Pump
F. Speed Control
L. Engine
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Additional Safety Instructions for Pressure
Washers
1. FLUID INJECTION. This machine operates
at fluid pressures and velocities high
enough to penetrate human and animal
flesh. Should such an injury occur, it may
be a surgical emergency. DO NOT treat
fluid injection as a normal cut, instead, see
a physician immediately.
6. CHANGING NOZZLES. Be sure to release
water pressure before changing nozzles, or
performing any service or maintenance, to
reduce the risk of fluid injection injury.
7. APPROVED FLUIDS. Some cleaning
fluids could cause injury to skin, eyes, or
lungs. Use only cleaning fluids approved
for high pressure washers and follow the
manufacturer's recommendations. Never
spray any corrosive chemicals, poisons,
insecticides, or flammable solvents with
this machine.
2. ADEQUATE VENTILATION. During
operation this machine produces carbon
monoxide, which is a poisonous gas. Make
sure the work area is adequately ventilated.
Never operate this machine indoors.
3. COOLING ENGINE. Motor parts get hot
during operation. Allow to cool before
placing hands near motor, adding fuel, or
performing any service or maintenance.
8. HOLDING SPRAY GUN. The reactive
force of the spray will cause the gun to
move, and could cause the operator to
fall or misdirect the spray. Always stand in
a stable position, grip the gun firmly with
both hands, and do not overreach. Use
extreme caution on roofs and ladders and
always wear appropriate harnesses and
safety equipment.
4. FUEL SPILLS. Fuel exposed to hot engine
components may ignite. Thoroughly clean
all fuel spills before starting.
5. ELECTRICAL OVERSPRAY HAZARD.
Spraying water near electrical outlets,
switches, or objects connected to an
electrical circuit, could result in a fatal
electric shock.
9. SLIPPING HAZARDS. The use of pressure
washers can create puddles and other
slippery surfaces. Use extreme caution on
these surfaces to reduce the risk of a fall.
Like all machinery there is potential danger
when operating this machine. Accidents are
frequently caused by lack of familiarity or
failure to pay attention. Use this machine
with respect and caution to lessen the
possibility of operator injury. If normal safety
precautions are overlooked or ignored,
serious personal injury may occur.
No list of safety guidelines can be complete.
Every shop environment is different. Always
consider safety first, as it applies to your
individual working conditions. Use this and
other machinery with caution and respect.
Failure to do so could result in serious
personal injury, damage to equipment, or
poor work results.
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SECTION 2: SETUP
Inventory
This machine presents
serious injury hazards
to untrained users. Read
through this entire manu-
al to become familiar with
the controls and opera-
tions before starting the
machine!
The following is a description of the main
components shipped with your machine. Lay the
components out to inventory them.
Note: If you can't find an item on this list, check
the mounting location on the machine or examine
the packaging materials carefully. Occasionally
we pre-install certain components for shipping
purposes.
Unpacking
Your machine was carefully packaged for safe
transportation. Remove the packaging materials
from around your machine and inspect it. If
you discover the machine is damaged, please
immediately call Customer Service at (570) 546-
9663 for advice.
A
B
F
C
Save the containers and all packing materials for
possible inspection by the carrier or its agent.
Otherwise, filing a freight claim can be difficult.
E
D
When you are completely satisfied with the condi-
tion of your shipment, inventory the contents.
Figure 2. Model H8191 inventory
H8191 Inventory (Figure 2)
Qty
A. Pressure Washer........................................ 1
B. Spray Gun Wand........................................ 1
C. Spray Gun .................................................. 1
D. Input Hose.................................................. 1
E. High Pressure Hose ................................... 1
F. Accessory Kit ............................................. 1
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Assembly
B
Refer to Figure 1 on Page 4 for identification of
components in the following steps.
A
C
To assemble the H8191:
1. Thread the spray gun wand into the spray
gun and tighten securely.
D
2. Connect the male end of the high pressure
hose to the pump output port.
Figure 3. Model H8191 accessory inventory.
3. Connect the high pressure hose quick coupler
to the spray gun.
H8191 Accessory Inventory (Figure 3)
Qty
A. Chemical Hose........................................... 1
B. Chemical Filter ........................................... 1
C. O-Ring Seal Kit .......................................... 1
D. Input Hose Filter......................................... 1
E. Hose Adapter Male-to-Male (not shown) .. 1
4. Connect the female end of the input hose
onto the pump input port.
5. Connect the other end of the input hose to
a spigot providing at least 5 GPM, or to the
input hose filter, if drawing from a standing
water source.
Note: Depending on the spigot fitting type, you
may need to use the provided male-to-male
input hose adapter to connect the pressure
washer to this type of water source.
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SECTION 3: OPERATIONS
Connections and Controls
A. Water Pressure Adjustment Knob
E. Fuel Valve
B. Chemical Injection Port
C. Pump Output Port
D. Pump Input Port
F. Speed Control Lever
G. Compression Release Lever
H. Pull-Start Handle
A
B
C
G
D
Figure 4. Pump Controls.
Figure 6. Additional motor controls.
E
H
F
Figure 5. Motor controls.
Figure 7. Pull-start handle location.
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Break-In
The first 20 hours of operation is considered the
break-in period. Be sure to follow the maintenance
schedule on Page 16 after 20 hours of use.
NOTICE
Failure to follow the break-in maintenance
schedule can reduce the lifespan of
the machine and negatively impact
performance.
Water Pressure
Adjustment Knob
Figure 8. Water pressure adjustment knob.
•
REDUCE ENGINE SPEED. Slowing the
engine will reduce the pressure created by
the pump.
Adjusting Pressure
NOTICE
DO NOT attempt to increase the maximum
pump pressure by modifying controls or
otherwise altering the machine. A higher
pressure setting than the factory set
maximum pressure may damage the pump
or cause components to fail, resulting in
serious personal injury.
Engine speed should always be set high
enough to handle the load of the pump. If
the engine speed is too low, the motor may
bog or stop when the spray gun trigger is
pulled and the pump is activated. Operating
the engine speed at such a setting can
cause excessive engine wear and premature
engine failure.
The pressure setting on the Model H8191 was
preset at the factory to achieve optimum pressure
for general purpose cleaning.
Changing Nozzles
To adjust the pressure:
•
•
•
BACK AWAY FROM THE SURFACE TO BE
CLEANED. Moving further away reduces the
pressure on the workpiece.
The Model H8191 pressure washer is equipped
with five spray nozzles housed in receptacles on
the front panel. Each nozzle is color coded and
delivers a specific spray pattern for a particular
cleaning purpose. The 0°, 15°, 25°, and 40°
nozzles are high pressure nozzles; the chemical
nozzle is a low pressure nozzle.
SELECT A DIFFERENT NOZZLE. Nozzles
with a wider angled spray deliver a less
powerful stream.
ADJUST THE PRESSURE REGULATOR
ON THE PUMP. Turn the water pressure
adjustment knob counterclockwise to lower
the pressure (Figure 8). Once you have
finished using your pressure washer, return
the regulator to its original position by turning
it clockwise.
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To change nozzles:
Nozzles
0° Red Nozzle
This nozzle delivers an extremely powerful pinpoint
stream that covers a very small cleaning area.
1. FOLLOW THE SHUTDOWN PROCEDURE
ON PAGE 15!
2. Pull back the quick connect coupler on the
end of the spray gun wand and remove the
current nozzle.
15° Yellow Nozzle
This nozzle delivers a powerful 15° spray pattern
for intense cleaning of small areas.
3. Select a nozzle, pull back the quick connect
coupler and insert the nozzle, as shown in
Figure 9.
25° Green Nozzle
This nozzle delivers a 25° spray pattern for intense
cleaning of larger areas.
40° White Nozzle
This nozzle delivers a 40° spray pattern and a
less powerful stream of water. It covers a wide
area of cleaning.
Chemical Black Nozzle
This nozzle is used to apply chemicals or cleaning
solutions. It has the least powerful stream.
Applying Chemicals
Figure 9. Inserting a nozzle.
4. Release the quick connect coupler, then twist
and pull the nozzle to make sure it is secure
in the coupler.
Use only household detergents, cleaners, and
degreasers recommended for use in pressure
washers. NEVER use toxic or corrosive
chemicals, acids, poisons, insecticides, or
flammable solvents such as gasoline or
kerosene with your pressure washer. Failure
to follow this warning could result in machine
failure, significant property damage, severe
personal injury, or death.
Always double-check coupler connections on
all fittings. Improperly connected fittings can
blow apart under pressure, causing severe
personal injury or equipment damage.
NOTICE
Applying chemicals or cleaning solvents
is a low pressure operation. Use only the
chemical nozzle to apply chemicals or
solvents.
Always try a nozzle on a small test area or
piece of test material to determine if it is the
correct nozzle for the task. Some nozzles
provide so much pressure they can destroy
even sturdy materials.
-12-
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3. Connect the low pressure chemical nozzle to
the spray gun as described on Page 12.
NOTICE
Chemicals left in the pressure washer can
damage the pump and void the warranty.
Always rinse the unit thoroughly by running
clean water through the chemical hose after
using chemicals or cleaning solvents.
4. After using chemicals or cleaning solutions,
draw clean water through the chemical hose
and pressure washer to rinse the internal
components.
To apply chemicals:
Drawing Water from
Standing Water
Source
1. Push the chemical hose onto the barbed
fitting located near the pump output port, as
shown in Figure 10.
To draw water from a standing source:
1. Attach the supplied input hose filter to the
input hose and place the input hose filter in
the standing water source.
Note: Be sure the water source is free from
debris that could clog the filter and cause a
loss of water flow.
2. Prime the pump by pouring water into the
other end of the input hose (the end without
the filter) while the filter end is submerged in
the water source. Without spilling water out of
the hose, connect the input hose to the input
port on the pump.
Figure 10. Chemical hose attached to barbed
fitting.
2. Push the other end of the chemical hose onto
the chemical hose filter (Figure 11), and fully
submerge in a container holding the chemical
or cleaning solution.
Note: Be sure the water source is large
enough to provide 5 GPM of flow for the
duration of the pressure washer operation.
NOTICE
If the pump is not able to provide pressurized
water when drawing from a standing water
source, shutdown the pressure washer
immediately and re-attempt to prime the
pump. Failure to follow this instruction can
damage the pump and void the warranty.
Figure 11. Chemical hose filter attached.
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Spray Gun Lock
Starting
The spray gun has a lockout lever that can be
engaged to prevent accidental discharge. This
feature is especially useful when climbing up a
ladder or doing any work that might accidentally
discharge the spray gun. To engage the lockout
lever, simply flip it away from the trigger and clip it
into the lockout lever groove in the handle (Figure
12). To release the lever, reverse this procedure
(Figure 13).
Operationofthisequipmenthasthepotential
to propel debris into the air, which can
cause eye injury. Always wear safety glasses
or goggles when operating equipment.
Everyday glasses or reading glasses only
have impact resistant lenses, they are not
safety glasses. Be certain the safety glasses
you wear meet the appropriate standards of
the American National Standards Institute
(ANSI).
To start the pressure washer:
1. Check the engine and pump oil level and fuel
level (refer to the MAINTENANCE section
beginning on Page 17 for locations). Add
engine oil (SAE 10W-30) and fuel (diesel) if
necessary.
2. Securely fasten one end of the provided input
hose to a threaded hose spigot. Securely
fasten the other end of the input hose to the
pump input port.
Figure 12. Spray gun trigger locked.
Note: When drawing water from a standing
source, follow the standing source instructions
on Page 13. When drawing water from a
spigot, you may need to use the provided
male-to-male hose adapter.
3. Makesurethespraygunissecurelyconnected
to the high pressure hose, and that the high
pressure hose is securely connected to the
pump output port.
4. Attach the appropriate nozzle to the quick
coupler at the end of the spray gun wand,
and turn on the water supply at the spigot.
Figure 13. Spray gun trigger unlocked.
NOTICE
Never allow the motor to run without a water
source connected to the pump. Failure
to follow this instruction will damage the
pump and void the warranty.
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5. Switch the motor to the START position by
loosening the speed control lever locking
bolt, moving the mechanism downward, and
retightening the bolt next to the word "START"
(Figure 5, Page 10).
12. Pull the trigger on the spray gun to release
pressurized water and begin spraying.
Note: If the motor does not start after several
pulls of the start rope or brief turns of the
start switch, repeat the starting instructions
from Step 7. If you are still unable to start the
motor, refer to Troubleshooting on Page
22.
6. Open the fuel valve by rotating the lever
clockwise until it is vertical (Figure 14).
Fuel Valve
NOTICE
Never allow the motor to run for more than
five minutes without pulling the trigger
on the spray gun to release water. Failure
to follow this instruction can damage the
pump and void the warranty.
Shutdown Procedure
Figure 14. Fuel valve in open position.
To shut down the pressure washer:
7. Squeeze the spray gun trigger until a steady
1. Release the spray gun trigger and return
the spray gun to the bracket on the washer
handle.
stream of water comes out, then release.
8. Unlock the compression release lever by
pulling the start rope until resistance is felt.
2. Allow the motor to run without pulling the
spray gun trigger for 4 minutes.
9. Push the compression release lever down
until it latches.
3. Switch the motor to the STOP position by
loosening the speed control lever locking
bolt, moving the mechanism upward, and
retightening the bolt next to the word "STOP"
(Figure 5).
10. Pull the start rope handle with forceful, but
even pressure, or turn the electric start switch
to start the motor.
4. Close the fuel valve by rotating the lever
counterclockwise until it is horizontal.
When pull-starting, pull the start rope
slowly until resistance is felt, then pull with
forceful, even pressure. Rapidly jerking the
start rope can cause it to forcefully recoil,
potentially causing hand or arm injury.
5. Shut off the water at the spigot, or remove
the input line from the water if drawing from a
standing source. Purge the pressure from the
system by pulling the spray gun trigger.
11. Allow the motor to run for at least two minutes
to achieve normal operating temperature,
then set the speed control lever to the desired
speed.
NOTICE
To reduce the risk of damaging engine
components, DO NOT stop the engine
abruptly when it is running under load.
NEVER attempt to stop the motor with the
compression release lever.
-15-
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SECTION 4: ACCESSORIES
G9927 and H3143—Wax Buffer
H8118—Spot Sandblaster
Wax the car in a jiffy with this buffer/polisher
system. The pad duplicates hand polishing with
a random orbit rotation. Kit includes a wax
application bonnet and a terrycloth polishing
bonnet. Safe for all types of finishes, gives a
beautiful swirl free result.
This spot sandblaster is the quickest, cleanest
way to remove rust spots, peeling paint, or surface
blemishes without disturbing the surrounding
area. Supplied with 4 nozzles that allow you to
spot blast inside corners, outside corners, edges,
and flat areas for perfect surface prep.
G9927
H3143
Figure 17. Models G9927 and H3143 Wax
Figure 15. Model H8118 Spot Sandblaster.
Buffers.
G7142—Long Rubber Gloves
H3265—24" Blow Gun
Get into hard-to-reach areas with this 24” long
Blow Gun. Includes rubber tip. 1/4” female NPT.
Industrial strength rubber gloves with 11" cuffs
protect from finger tip to elbow. Positive grip on
hands and fingers. Alkali and acid resistant.
H3261—5 pc. Air Blow Kit
This chrome plated, brass body Air Blow Gun
includes five different tips for all normal air
cleaning jobs. 1/4" NPT air inlet.
H3265
Figure 16. Model G7142 Sandblasting Gloves.
H3261
Figure 18. Model H3265 and H3261 air tools.
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SECTION 5: MAINTENANCE
NOTICE
Operating machinery in harsh conditions
mayrequiremorefrequentmaintenance.The
maintenance schedule below is a guideline
for general use. If you operate your machine
in extremely hot, cold, or dusty conditions,
change oils and clean or replace filters with
increased frequency.
Always release water pressure and allow
engine to cool before performing any service
or maintenance. Failure to follow this warning
can result in severe burns or fluid injection
injuries.
Schedule
For optimum performance from your machine,
follow this maintenance schedule and refer to any
specific instructions given in this section.
Interval
Daily
Every 20
hours or 1
month
Every 100
hours or 3
months
Every 500
hours or 6
months
Every 1000
hours or 12
months
Maintenance
Check and tighten
bolts
X
X
X
X
Check for worn or
damaged wires
Check for oil/fuel
leaks
Check engine oil
Change engine oil
X (First Time
Break In)
X
X
Clean engine oil filter
X (First Time
Break In)
Replace engine oil
filter
X
Check pump oil
Change pump oil
X
X (First Time
Break In)
X
X
Clean outer air filter
Clean filter core
Replace filter core
Clean fuel tank
X
X
X
X
X
Clean fuel filter
Replace fuel filter
X
Figure 19. Maintenance schedule
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General Maintenance
Dipstick/Oil Cap
Before each use, perform the following general
maintenance tasks:
1. Check the engine oil and fuel level
Oil Filter Cap
2. Check the engine for cracked fuel lines,
loose bolts, and any other excessively worn
or damaged parts. Repair or replace worn or
damaged parts as necessary. Tighten any
loose bolts.
Drain Plug
Figure 20. Components for oil and filter service.
3. Check the high pressure hose for leaks.
Replace if necessary.
4. Drain all oil and reinstall the drain plug and
drain plug gasket.
4. Inspect the spray gun and nozzles for clogged
debris or damage. Clean any debris with
a garden hose and replace any damaged
parts.
5. Remove the bolt securing the oil filter cap
(Figure 20).
6. Carefully draw out the oil filter cap and oil
5. Inspect the chemical injection hose and filter
for clogged debris or damage. Clean any
debris with a garden hose and replace any
damaged parts.
filter by hand or with needle nosed pliers.
7. Wipe away any particulate material collected
in the filter screen with a clean, lint-free cloth,
or with a soft bristled brush. Use mineral spir-
its to remove stubborn deposits.
Engine Oil and Filter
Service
8. Reinstall the filter screen and securely fasten
the oil filter cap bolt.
Replace the engine oil and clean the oil filter once
after the first 20 hours, and then regularly after
every 100 hours or 3 months (more frequently in
harsh conditions).
To change the engine oil:
1. FOLLOW SHUTDOWN PROCEDURE AND
ALLOW ENGINE TO COOL!
2. Loosen the dipstick/oil cap.
3. Remove the drain plug and drain plug gasket
on the side of the engine (Figure 20) and
allow oil to drain through the hole in the frame
into a catch basin.
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9. Remove the dipstick/oil cap and fill with
an SAE 10W-30 motor oil rated for diesel
engines. Check the level on the dipstick
frequently until full (Figure 21). Avoid over
filling or seals may be damaged.
Oil Cap
Oil Level Viewport
Drain Plug
Figure 22. Pump oil cap and drain plug.
3. Remove the oil drain plug and drain plug gas-
ket.
4. After all the oil has drained, reinstall and tight-
Figure 21. Correct engine oil level on the
en the oil drain plug with drain plug gasket.
dipstick.
5. Remove the oil cap and fill with SAE 30 oil.
Add oil slowly and check the level frequently.
The pump is full when oil is just past the red
dot, covering the lower 2⁄3 of the viewing port
(Figure 23). Do not overfill.
6. Tighten the dipstick/oil cap.
7. Dispose of the used oil in accordance with
local regulations.
Pump Oil Change
Replace the pump oil once after 20 hours, and
then regularly every 100 hours or 3 months.
To change the pump oil:
1. FOLLOW SHUTDOWN PROCEDURE AND
ALLOW ENGINE TO COOL!
2. Loosen the oil cap (Figure 22).
Figure 23. Correct pump oil level in the viewport.
6. Reinstall the oil cap and tighten securely.
3. Place a container under the oil drain plug
(Figure 22).
7. Dispose of the used oil in accordance with
local regulations.
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4. Remove the outer foam air filter element from
Air Filter Service
the filter core.
5. Clean the outer element thoroughly with min-
Clean the outer air filter element after every 20
hours or 1 month (more frequently in harsh condi-
tions).
eral spirits and allow to dry.
6. Saturate the outer element with fresh motor
oil, then squeeze with a cloth to remove
excess oil.
To clean the outer air filter element:
1. FOLLOW SHUTDOWN PROCEDURE AND
7. Replace the outer air filter element, then
replace the air filter assembly, filter wing nut,
filter cover, and filter cover wing nut.
ALLOW ENGINE TO COOL!
2. Remove the air filter cover by first removing
the air filter cover wing nut.
Note: To clean the air filter core, DO NOT
use solvent or any other cleaning solution.
Instead, use a soft brush to remove any par-
ticulate build-up.
3. Remove the wing nut and washer holding
the air filter in place, and remove the air filter
assembly (Figure 24).
Figure 24. Removing the air filter.
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Fuel Filter Change
Refer to the part breakdown on Page 27 for identi-
fication of components in the following steps.
Fuel Filter
To change the fuel filter:
1. FOLLOW SHUTDOWN PROCEDURE AND
Fuel Valve
ALLOW ENGINE TO COOL!
1. Drain the fuel tank by removing the fuel tank
drain plug (Figure 25). Use a funnel and cer-
tified fuel container to capture the fuel as it
drains.
Figure 26. Removing the fuel filter.
4. Insert a new filter, making sure the gasket at
the base of the fuel filter and the gasket at the
base of the fuel valve are in place.
Hex Nuts
5. Fasten the fuel valve nuts securely.
6. Fasten the fuel tank drain plug securely.
Note: If you have difficulty removing the fuel
filter, you may find it easier with the fuel tank
removed entirely. To do this, refer to the parts
breakdown on Page 27, remove the upper
and lower fuel lines, and remove the upper
tank bracket. Once the tank is removed, the
fuel filter can be removed and replaced more
easily. Be sure to reattach and securely fas-
ten any fuel lines or brackets you remove.
Fuel Tank Drain Plug
Fuel Valve
Figure 25. Fuel tank drain plug and fuel valve.
2. Remove the two hex nuts shown in Figure
25. These hex nuts hold both the fuel valve
and the fuel filter in place.
3. Remove the fuel tank cap and extract the fuel
filter through the top of the tank as shown in
Figure 26.
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Troubleshooting
Symptom
Possible Cause
Solution
Engine won't start.
1. No fuel.
1. Add fuel.
2. Cold weather has made fuel and oil overly 2. Move the machine into a warm area and allow the
adhesive.
engine block to warm up before returning to work
area to start.
3. Fuel valve is closed.
3. Open fuel valve.
4. Air filter is clogged.
4. Clean air filter.
5. Water pressure has built up in the pump.
5. Release water pressure by squeezing spray gun trig-
ger.
6. Internal engine components have failed.
6. Refer to engine manual or see a qualified technician
for repair.
Engine starts, but 1. The fuel filter or fuel line is clogged.
1. Clean the fuel filter or clear the fuel lines.
2. Fully open the fuel valve.
3. Replace with a clean, quality diesel fuel.
4. Clean air filter.
runs poorly.
2. The fuel valve is partially closed.
3. Low quality or contaminated fuel.
4. Air filter is dirty.
5. Engine speed is too slow.
5. Increase throttle setting.
6. Internal engine components are worn or 6. Refer to a qualified technician.
have failed.
No, or low, water 1. Low water supply.
pressure. 2. Low pressure nozzle attached.
1. Water supply must flow at least 5 GPM.
2. Attach a higher pressure nozzle.
3. Tighten or replace fitting as necessary.
4. Remove and clean filter.
5. Increase engine speed with throttle lever.
6. Use high pressure hose under 100 ft.
3. Leak at high pressure hose fitting.
4. Input hose filter screen clogged.
5. Engine is not in high throttle position.
6. High pressure hose is too long.
7. Engine or pump components are worn or 7. Refer a qualified technician for repair.
have failed.
Will not draw chemi- 1. Spray gun does not have low pressure 1. Attach low pressure nozzle.
cals.
nozzle attached.
2. Chemical filter clogged.
2. Clean filter.
3. Chemical hose and filter not fully sub- 3. Be sure chemical hose and filter stay fully sub-
merged in chemical.
merged in chemical.
4. Chemical is too thick.
4. Dilute chemical. Chemicals should be the consis-
tency of water.
-22-
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Pump Parts Breakdown
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Pump Parts List
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
1
2
3
4
5
6
7
8
9
PSB20M
CAP SCREW M5-.8 X 14
OIL GAUGE
43 PH81910043
44 PH81910044
45 PH81910045
46 PH81910046
47 PH81910047
48 PH81910048
49 PH81910049
50 PH81910050
51 PH81910051
52 PH81910052
53 PH81910053
54 PH81910054
55 PH81910055
56 PH81910056
57 PH81910057
58 PH81910058
59 PH81910059
60 PH81910060
61 PH81910061
62 PH81910062
63 PH81910063
64 PH81910064
65 PH81910065
66 PH81910066
67 PH81910067
68 PH81910068
69 PH81910069
70 PH81910070
71 PH81910071
72 PH81910072
73 PH81910073
74 PH81910074
75 PH81910075
76 PH81910076
77 PH81910077
78 PH81910078
79 PH81910079
79-1 PLW03M
VALVE JACKET WATER RETURN
VALVE JACKET OUTER GASKET
WATER RETURN VALVE CORE
WATER RETURN VALVE SEAT
VALVE SEAT GASKET
PH81910002
PH81910003
PH81910004
PH81910005
PH81910006
PH81910007
PH81910008
PH81910009
OIL GAUGE CASKET
DRAINPLUG GASKET
DRAINPLUG
CRANK CASE COVER
CRANK CASE COVER GASKET
OIL INLET PLUG
OUTLET T CONNECTOR GASKET
WATER OUTLET T CONNECTOR
FIX BLOT GASKET
OIL INLET PLUG GASKET
CRANK CASE
FIX BLOT OUTLET T CONNECTOR
FIX BLOT INLET T CONNECTOR
INLET T CONNECTOR GASGET SMALL
WATER INLET T CONNECTOR
TWO T CONNECTOR GASKET
INLET T CONNECTOR GASGET
WATER INLET CONNECTOR GASGET
WATER INLET CONNECTOR
3/8" QD BODY
10 PH81910010
11 PSB74M
CAP SCREW M6-1 X 18
CRANK SHAFT COVER
BEARING COVER GASKET
BEARING CLIP
12 PH81910012
13 PH81910013
14 PH81910014
15 PH81910015
16 PH81910016
17 PH81910017
18 PH81910018
19 PH81910019
20 PH81910020
21 PH81910021
22 PH81910022
23 PH81910023
24 PH81910024
25 PH81910025
26 PH81910026
27 PH81910027
28 PH81910028
29 PH81910029
30 PH81910030
31 PH81910031
32 PH81910032
33 PH81910033
34 PSB31M
BALL BEARING
CRANKSHAFT
NEEDLE ROLLER BEARING
BEARING COVER GASKET
FLANGE
DETERGENT INJECTOR
INJECTOR SPRING
FLANGE OIL SEAL
INJECTOR BALL
CAP SCREW M8-1.25 X 24
CONNECTING ROD
INJECTION NOZZLE GASKET
INJECTION NOZZLE
PLUNGER PIN
WATER SHOOTING NOZZLE
WATER OUTLET JOINT
PLUNGER ROD
PLUNGER ROD GASKET
WATER CHECKING FLAKE
CERAMIC PLUNGER
WATER OUTLET JOINT GASKET
WATER OUTLET CONE VALVE SPRING
WATER OUTLET CONE VALVE
WATER OUTLET CONE VALVE GASKET
CYLINDER
LOCATING RING
LOCATING RING GASKET
LOCATING RING WATER SEAL
U-PACKING SEAL
CHECK VALVE GASKET
WASHER CHECK VALVE
U-PACKING SEAL SEAT
PRESSURE ADJUSTING HANDLE COVER
CAP SCREW M8-1.25 X 25
HEX NUT M8-1.25
CHECK VALVE STOPPER
SPRING CHECK VALVE
CHECK VALVE BOX
35 PN03M
COMPACTION GASKET
36 PH81910036
37 PH81910037
38 PH81910038
39 PH81910039
40 PH81910040
41 PH81910041
42 PH81910042
PRESSURE ADJUSTING HANDLE
PRESSURE ADJUSTING SEAT
UPPER SPRING WASHER
PRESSURE ADJUSTING SPRING
LOWER SPRING WASHER
WATER RETURN VALVE ROD
VALVE JACKET INNER GASKET
CHECK VALVE COMPACTION CAP
CAP SCREW M6-1 X 53
LOCK WASHER 6MM
80 PSB31M
CAP SCREW M8-1.25 X 25
LOCK WASHER 8MM
81 PLW04M
82 PW01M
FLAT WASHER 8MM
-24-
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Engine Block Parts Breakdown
REF PART #
PH81910103
DESCRIPTION
REF PART #
DESCRIPTION
SEALING PLATE GASKET
SEALING PLATE
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
CYLINDER HEAD NUTS (LONG)
CYLINDER HEAD NUTS (SHORT)
CYLINDER HEAD NUT GASKET
CYLINDER HEAD GASKET
OVAL RING GASKET 5.1 X 2.6
CYLINDER HEAD BOLTS LONG
CYLINDER HEAD BOLTS SHORT
ENGINE BLOCK
120
121
122
123
124
125
126
127
128
129
130
131
132
133
135
138
PH81910120
PH81910104
PH81910105
PH81910106
PH81910107
PH81910108
PH81910109
PH81910110
PH81910111
PH81910112
PH81910113
PH81910114
PH81910115
PH81910116
PH81910117
PH81910118
PN01M
PH81910121
PH81910122
PH81910123
PH81910124
PH81910125
PH81910126
PH81910127
PH81910128
PH81910129
PH81910130
PH81910131
PH81910132
PH81910133
PH81910135
PH81910138
THRUST PIECE
FLANGE FACE WITH BOLTS
NEEDLE BEARING
BALL BEARING
CRANKCASE COVER GASKET
BEARING 207
REAR OIL SEAL 35 X 50 X 8
OIL DRAIN PLUG
RETAINING PIN 8 X 12
FUEL PIPE
OIL DRAIN PLUG GASKET
O-RING FOR OIL DIPSTICK
FUEL PUMP STUD
CRANKCASE COVER
INNER HEXAGON PLUG G1/8
FLANGE BOLT M8-1.25 X 33.5
FRONT OIL SEAL 35 X 50 X 10
MAIN BUSHING
FUEL PUMP LONG STUD
FUEL INJECTOR GASKET
OIL DIPSTICK
ALUMINUM PLUG DIAMETER 8 X 8
HEX NUT M6-1
-25-
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Engine Cylinder Head Parts Breakdown
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
201
202
203
204
205
206
207
208
209
PH81910201
FLANGE BOLT M6-1 X 70
OIL HOLE PLUG
215
216
217
218
219
220
221
222
223
224
225
226
227
228
PH81910215
VALVE GUIDE OIL SEAL
VALVE SPRING WASHER
PIN 4 X 8
PH81910202
PH81910203
PH81910204
PH81910205
PH81910206
PH81910207
PH81910208
PH81910209
PH81910216
PH81910217
PH81910218
PH81910219
PH81910220
PH81910221
PH81910222
PN01M
DECOMPRESSION SHAFT
O-RING 10 X 1.9
DOUBLE ENDED STUD
CYLINDER HEAD
TORSION SPRING
RETAINING PIN 3 X 16
CYLINDER HEAD COVER
CYLINDER HEAD COVER GASKET
ROCKER ARM
DOUBLE ENDED BOLT
INTAKE VALVE
EXHAUST VALVE
HEX NUT M6-1
209-1 PH81910209-1 VALVE ADJUSTING SCREW
PH81910224
PH81910225
PH81910226
PH81910227
PH81910228
FUEL INJECTOR PRESSURE PLATE
FUEL INJECTOR GASKET
FUEL INJECTOR BOLT (LONG)
BREATHER ASSEMBLY
O-RING 12 X 1.9
210
211
212
213
214
PH81910210
PH81910211
PH81910212
PH81910213
PH81910214
ROCKER SHAFT FASTENING BOLT
ADJUSTING VALVE SPACER
VALVE CLIP
VALVE SPRING SEAT
VALVE SPRING
-26-
H8191 3600 PSI Diesel Pressure Washer
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Engine Piston and Crank Parts Breakdown
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
301
302
303
304
305
306
307
308
309
310
311
312
313
PH81910301
PISTON RINGS
314
315
316
317
319
320
321
322
323
324
325
326
327
PH81910314
KEY 6 X 63
PH81910302
PH81910303
PH81910304
PH81910305
PH81910306
PH81910307
PH81910308
PH81910309
PH81910310
PH81910311
PH81910312
PH81910313
PISTON PIN RETAINER CLIP 23MM
PISTON
PH81910315
PH81910316
PH81910317
PH81910319
PH81910320
PH81910321
PH81910322
PH81910323
PH81910324
PH81910325
PH81910326
PH81910327
CRANKSHAFT
PLUG 6 X 8
WRIST PIN
BALANCING SHAFT DRIVING GEAR
FLYWHEEL NUT GASKET
FLYWHEEL NUT
CONNECTING ROD ASSEMBLY
CONNECTING ROD BEARING
BEARING
FLYWHEEL WITH RING GEAR
FUEL PUMP ROD SLEEVE
PUSH ROD
BALANCING SHAFT
KEY 5 X 7
BALANCING SHAFT TIMING GEAR
FLANGE BOLT
TAPPET
KEY 5 X 14
CRANKSHAFT TIMING GEAR
KEY 5 X 12
CAMSHAFT
CAMSHAFT TIMING GEAR
313-1 PH81910313-1 KEY 5 X 14
-27-
H8191 3600 PSI Diesel Pressure Washer
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Engine Fuel Tank Parts Breakdown
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
401
402
403
404
405
406
407
408
409
412
413
414
415
PH81910401
FLANGE BOLT M8-1.25 X 45
UPPER BRACKET FASTENER
FLAT WASHER 8MM
UPPER TANK BRACKET
INJECTOR
416
417
418
419
420
421
422
423
424
425
426
427
428
PH81910416
HEX NUT M6-1
PH81910402
PW01M
PW03M
FLAT WASHER 6MM
FUEL TANK PETCOCK ASSEMBLY
FLAT WASHER
PH81910418
PH81910419
PH81910420
PH81910421
PH81910422
PH81910423
PH81910424
PH81910425
PH81910426
PH81910427
PH81910428
PH81910404
PH81910405
PH81910406
PH81910407
PH81910408
PH81910409
PH81910412
PH81910413
PH81910414
PH81910415
FUEL PIPE CLAMP
HOSE CLAMP
FUEL HOSE
FUEL HOSE
FUEL FILTER GASKET
FUEL FILTER ASSEMBLY
FUEL INJECTION PUMP
HIGH PRESSURE FUEL PIPE
FUEL CUP FILTER
RUBBER FUEL TANK MOUNT
FUEL TANK
FUEL DRAIN GASKET
FUEL DRAIN PLUG
LOWER TANK BRACKET
FLANGE BOLT M6-1 X 14
FUEL CAP ASSEMBLY
FUEL INJECTOR CAP
-28-
H8191 3600 PSI Diesel Pressure Washer
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Engine Lubrication/Speed Parts Breakdown
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REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
506
507
508
509
510
511
512
513
514
515
516
517
518
PFB01M
FLANGE BOLT M6-1 X 12
OIL PUMP COVER
O-RING 34.5 X 1.8
OIP PUMP ASSEMBLY
PIN 3 X 6
519
520
521
522
523
524
525
526
527
528
529
530
531
PH81910519
LEVER SHAFT GASKET
BEARING
PH81910507
PH81910508
PH81910509
PH81910510
PH81910511
PH81910512
PH81910513
PH81910514
PH81910515
PH81910516
PH81910517
PH81910518
PH81910520
PH81910521
PH81910522
PH81910523
PH81910524
PH81910525
PH81910526
PH81910527
PH81910528
PH81910529
PH81910530
PH81910531
FORK LEVER ASSEMBLY
WASHER
FUEL CONTROLLER PARTS
HANDLE BRACKET ASSEMBLY
SPEED CONTROL LEVER
FLANGE BOLT M6-1 X 14
FLANGE BOLT M6-1 X 18
LEAD SEAL
FLANGE BOLT M9 X 14
OIL FILTER CLEANING ELEMENT
SEALING RING 20 X 2.65
OIL GUIDE
OIL PUMP DRIVING GEAR
FLY BLOCK PIN
RETURN SPRING 2
FLY BLOCK
RETURN SPRING 1
GOVERNER FORK TAPPET
SPEED CONTROL SPRING
-29-
H8191 3600 PSI Diesel Pressure Washer
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Engine Recoil Starter Parts Breakdown
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
601
602
603
604
605
606
607
608
609
610
611
612
613
614
PH81910601
RECOIL CASE ASSEMBLY
FLANGE BOLT M6-1 X 8
RECOIL STARTER ROPE
RECOIL STARTER HANDLE
FLAT TORSIONAL SPRING
RECOIL REEL
615
616
617
618
619
620
621
622
623
624
625
626
627
PFB01M
FLANGE BOLT M6-1 X 12
STARTER
PH81910602
PH81910603
PH81910604
PH81910605
PH81910606
PH81910607
PH81910608
PH81910609
PH81910610
PH81910611
PH81910612
PH81910613
PN01M
PH81910616
PH81910617
PH81910618
PW03M
RECOIL STARTER COVER
FLANGE BOLT M6-1 X 22
FLAT WASHER 6MM
COLLAR
PH81910620
PH81910621
PH81910622
PH81910623
PH81910624
PH81910625
PH81910626
PH81910627
STARTING CLAW
SHOCK ABSORBER
SHOCK PADS
HELICAL SPRING
TORSIONAL SPRING
STARTING CLAW PLATE
FRICTION PLATE
SHOCK ISOLATOR
COLLAR
PAD
FRICTION PLATE GASKET
SPRING WASHER
WIND LEADING PLATE
FLANGE BOLT M6-1 X 22
HEX NUT M6-1
-30-
H8191 3600 PSI Diesel Pressure Washer
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Engine Air Filter, Muffler, and Fuel Pump
Parts Breakdown
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
701
702
703
704
705
PH81910701
INTAKE PIPE GASKET
INTAKE PIPE
721
722
723
724
725
731
732
733
734
PH81910721
AIR FILTER SHOCK ABSORBER
COLLAR
PH81910702
PH81910703
PH81910704
PH81910705
PH81910722
PH81910723
PH81910724
PWN02M
AIR CLEANER GASKET
EXHAUST MANIFOLD STUD
FLANGE BOLT M6-1 X 22
AIR FILTER SHOCK ABSORBER
COLLAR
WING NUT M8-1.25
DELIVERY HOLDER
DELIVERY SPRING
DELIVERY GASKET
DELIVERY VALVE
706A PH81910706A AIR FILTER TOP ASSEMBLY
PH81910731
PH81910732
PH81910733
PH81910734
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
PH81910706
PH81910707
PH81910708
PH81910709
PH81910710
PW01M
AIR FILTER ASSEMBLY
HEX NUT M6-1
AIR FILTER ELEMENT
MUFFLER GASKET
736A PH81910736A FUEL PUMP ASSEMBLY
MUFFLER ASSEMBLY
FLAT WASHER 8MM
736
737
738
739
740
741
742
743
744
746
PH81910736
PH81910737
PH81910738
PH81910739
PH81910740
PH81910741
PH81910742
PH81910743
PH81910744
PN01M
PLUNGER ASSEMBLY
ADJUSTING GASKET
PUMP BODY CONNECTING PLATE
CIRCLIP
PLW04M
LOCK WASHER 8MM
PH81910713
PH81910714
PH81910715
PH81910716
PH81910717
PH81910718
PH81910719
PH81910720
HEX NUT M6-1
FLANGE BOLT M8-1.25 X 14
MUFFLER SCREAN COVER
FLANGE BOLT M6-1 X 14
MUFFLER TAIL PIPE
CONTROL LEVER ASSEMBLY
SPRING SEAT
SLEEVE PIN
FUEL INJECTION PUMP
FUEL INJECTION PUMP SPRING
HEX NUT M6-1
INNER SHOCK SEALING RING
AIR FILTER BOTTOM ASSEMBLY
OUTER SHOCK SEALING RING
-31-
H8191 3600 PSI Diesel Pressure Washer
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Engine Electric Start Parts Breakdown
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
801
802
803
804
805
806
807
PH81910801
BATTERY
808
809
810
811
812
813
814
PH81910808
WIRING HARNESS
FUSE
PH81910802
PN06M
CAP SCREW M5-0.8 X 13
HEX NUT M5-.8
PH81910809
PH81910810
PB14M
STARTER MOTOR
HEX BOLT M10-1.5 X 35
LOCK WASHER 10MM
FLAT WASHER 10MM
BATTERY CABLE
PH81910804
PFB01M
ALTERNATOR ASSEMBLY
FLANGE BOLT M6-1 X 12
VOLTAGE REGULATOR
KEY AND SWITCH ASSEMBLY
PLW06M
PH81910806
PH81910807
PW04M
PH81910814
-32-
H8191 3600 PSI Diesel Pressure Washer
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Frame and Hardware Parts Breakdown
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
901
902
903
904
905
906
907
908
909
910
PH81910901
SPRAY GUN BRACKET
FLAT WASHER 8MM
HEX NUT M8-1.25
911
912
913
914
915
916
917
918
919
PH81910911
15 DEGREE NOZZLE
25 DEGREE NOZZLE
40 DEGREE NOZZLE
CHEMICAL NOZZLE
AXLE
PW01M
PH81910912
PH81910913
PH81910914
PH81910915
PH81910916
PLN09M
PN03M
PH81910904
PH81910905
PH81910906
PH81910907
PH81910908
PH81910909
PH81910910
FRAME ASSEMBLY
HIGH PRESSURE HOSE ASSEMBLY
IN-FEED HOSE ASSEMBLY
IN-FEED FILTER
WHEEL ASSEMBLY
LOCK NUT M12-1.75
O-RING KIT
CHEMICAL HOSE
PH81910918
PH81910919
CHEMICAL FILTER
SPRAY GUN AND WAND ASSEMBLY
0 DEGREE NOZZLE
-33-
H8191 3600 PSI Diesel Pressure Washer
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Machine Labels Breakdown
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REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
1001 PH81911001 MACHINE ID LABEL
1004 PH81911004 HOT SURFACES WARNING LABEL
1005 PH81911005 CARBON MONOXIDE WARNING LABEL
1002 PH81911002 NOZZLE COLOR CHART LABEL
1003 PH81911003 FLAMABLE WARNING LABEL
Safety labels warn about machine hazards and ways to prevent injury. The owner of this machine
MUST maintain the original location and readability of the labels on the machine. If any label is
removed or becomes unreadable, REPLACE that label before using the machine again. Contact
-34-
H8191 3600 PSI Diesel Pressure Washer
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WARRANTY AND RETURNS
Grizzly Industrial, Inc. warrants every product it sells for a period of 1 year to the original purchaser from
the date of purchase. This warranty does not apply to defects due directly or indirectly to misuse, abuse,
negligence, accidents, repairs or alterations or lack of maintenance. This is Grizzly’s sole written warranty
and any and all warranties that may be implied by law, including any merchantability or fitness, for any par-
ticular purpose, are hereby limited to the duration of this written warranty. We do not warrant or represent
that the merchandise complies with the provisions of any law or acts unless the manufacturer so warrants.
In no event shall Grizzly’s liability under this warranty exceed the purchase price paid for the product and
any legal actions brought against Grizzly shall be tried in the State of Washington, County of Whatcom.
We shall in no event be liable for death, injuries to persons or property or for incidental, contingent, special,
or consequential damages arising from the use of our products.
To take advantage of this warranty, contact us by mail or phone and give us all the details. We will then
issue you a “Return Number,’’ which must be clearly posted on the outside as well as the inside of the
carton. We will not accept any item back without this number. Proof of purchase must accompany the
merchandise.
The manufacturers reserve the right to change specifications at any time because they constantly strive to
achieve better quality equipment. We make every effort to ensure that our products meet high quality and
durability standards and we hope you never need to use this warranty.
Please feel free to write or call us if you have any questions about the machine or the manual.
Thank you again for your business and continued support. We hope to serve you again soon.
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