Predator 64931 Manuel utilisateur
Visit our website at: http://www.harborfreight.com
Email our technical support at: [email protected]
Email our engine support at [email protected]
Using an engine indoors
CAN KILL YOU IN MINUTES.
Engine exhaust contains carbon monoxide.
This is a poison you cannot see or smell.
NEVER use inside
a home or garage,
EVEN IF doors and
windows are open.
Only use OUTSIDE
and far away from
windows, doors,
and vents.
64931
Owner’s Manual & Safety Instructions
Save This Manual Keep this manual for the safety warnings and precautions, assembly,
operating, inspection, maintenance and cleaning procedures. Write the product’s serial number in the
back of the manual near the assembly diagram (or month and year of purchase if product has no number).
Keep this manual and the receipt in a safe and dry place for future reference. 19l
When unpacking, make sure that the product is intact
and undamaged. If any parts are missing or broken,
please call 1-888-866-5797 as soon as possible.
Copyright© 2018 by Harbor Freight Tools®. All rights reserved.
No portion of this manual or any artwork contained herein may be reproduced in
any shape or form without the express written consent of Harbor Freight Tools.
Diagrams within this manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product described herein.
Tools required for assembly an d se rv ic e may n ot b e in cl uded.
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
Page 2 For equipment technical questions, please call 1-888-866-5797. ITEM 64931
Table of Contents
Specifications ...............................................................2
Safety ...........................................................................3
Setup ............................................................................7
Operation .....................................................................12
Maintenance ................................................................ 17
Troubleshooting ...........................................................21
Parts Lists and Diagrams ............................................23
Warranties ...................................................................26
Specifications
Pressure Washer Specifications
Pump Triplex
Pump Oil Type SAE 15W-40
Capacity 12 Ounces (0.36 Liter)
Drive Direct
Maximum Pressure 4400 PSI
Flow Rate 4.2 GPM
Hose Length 50'
Wand Length 31"
Nozzles Quick Connect 0°, 15°,
25°, 40° + Soap Nozzle
Engine Specifications
Displacement 420 cc
Engine Type Horizontal Single Cylinder
4-stroke OHV
Cooling System Forced air cooled
Fuel Type 87+ octane stabilizer treated
unleaded gasoline
Capacity 1.45 Gallon (5.4 Liter)
Engine Oil Type SAE 10W-30 above 32° F
5W-30 at 32° F or below
Capacity 1.16 Quart (1.1 Liter)
Run Time @ 50% Load
with full tank 2 hr.
Bore x Stroke 90 mm x 66 mm
Compression Ratio 8.8:1
Rotation viewed from PTO
(power takeoff - the output shaft) Counterclockwise
Spark Plug Type NHSP® / Torch® F7TC
Gap 0.027" – 0.031"
Valve Clearance Intake 0.004" – 0.006"
Exhaust 0.004" – 0.006"
The emissions control system for this Engine is warranted for standards set by the
U.S. Environmental Protection Agency. For warranty information, refer to the last pages of this manual.
Page 3For equipment technical questions, please call 1-888-866-5797.ITEM 64931
SAFETYSETUPOPERATIONMAINTENANCE
WARNING SYMBOLS AND DEFINITIONS
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.
Indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
Addresses practices not related to personal injury.
Symbol Definitions
Symbol Property or Statement
RPM Revolutions Per Minute
HP Horsepower
WARNING marking concerning
Risk of Eye Injury. Wear ANSI-approved
safety goggles with side shields.
Read the manual before
set-up and/or use.
WARNING marking concerning
Risk of Hearing Loss.
Wear hearing protection.
Symbol Property or Statement
WARNING marking concerning
Risk of Respiratory Injury.
Operate engine OUTSIDE and far away
from windows, doors, and vents.
WARNING marking concerning
Risk of Fire while handling fuel.
Do not smoke while handling fuel.
WARNING marking concerning
Risk of Fire.
Do not refuel while operating.
Keep flammable objects
away from engine.
WARNING marking concerning
Risk of Injection.
Do not direct water stream/nozzle at body.
IMPORTANT SAFETY INSTRUCTIONS
WARNING! Read all instructions.
Failure to follow all instructions listed below may result in fire, serious injury and/or DEATH.
The warnings and precautions discussed in this manual cannot cover all possible conditions and
situations that may occur. It must be understood by the operator that common sense and caution
are factors which cannot be built into this product, but must be supplied by the operator.
SAVE THESE INSTRUCTIONS
Page 4 For equipment technical questions, please call 1-888-866-5797. ITEM 64931
SAFETY SETUP OPERATION MAINTENANCE
Set Up Precautions
1. Gasoline fuel and fumes are flammable, and
potentially explosive. Use proper fuel storage
and handling procedures. Do not store fuel
or other flammable materials nearby.
2. Have multiple ABC class fire extinguishers nearby.
3. Operation of this equipment may create sparks that
can start fires around dry vegetation.
A spark arrestor may be required. The operator
should contact local fire agencies for laws or
regulations relating to fire prevention requirements.
4. Set up and use only on a flat, level,
well-ventilated surface.
5. The work area should have adequate
drainage to reduce the possibility of
a fall due to slippery surfaces.
6. Wear ANSI-approved safety goggles, heavy-duty
work gloves, and dust mask/respirator during set up.
7. Use only lubricants and fuel recommended
in the Specifications chart of this manual.
8. Only use cold water or pressure washer
detergent in this tool. Do not use caustic
materials, solvents, flammable materials, or
detergents not designed for pressure washers.
Use of any such material can cause injury,
or damage this tool or personal property.
9. Do not dry run this product. Dry running
will cause serious damage to the seals.
Make sure the water supply used for the
Pressure Washer is not dirty or sandy.
10. Prior to starting the Pressure Washer in
cold weather, check all of the parts of the
unit to make sure ice has not formed. Do
not store the unit anywhere that the
temperature will fall below 32° F (0° C).
Operating Precautions
1. CARBON MONOXIDE HAZARD
Using an engine indoors
CAN KILL YOU IN MINUTES.
Engine exhaust contains
carbon monoxide. This is a poison
you cannot see or smell.
NEVER use inside a home or garage,
EVEN IF doors and windows are open.
Only use OUTSIDE and far away from windows,
doors, and vents.
2. Keep children away from the equipment,
especially while it is operating.
3. Parts of the Pressure Washer, especially
exhaust system components, get very hot
during use. Stay clear of hot parts.
4. Injection Hazard! The high pressure
water jet produced by this tool can cut
skin or cause injury to hands or eyes.
Do not allow spray to strike you and do
not spray toward people or animals. Do not spray
the tool itself or any electrical wiring/receptacle.
5. Do not carry the spray handle with your finger on
the trigger, whether engine is operating or not.
6. In case of an emergency during use, immediately
release the trigger on the spray handle, turn
the engine off and then shut off gas supply
to the engine. Do not set the spray handle
down without turning off the engine.
7. This Pressure Washer is intended for
outdoor residential use only.
8. The high pressure water flow can damage
the work surface if not used properly. Always
test the spray in an open area first.
9. When dispensing detergent, apply the detergent
to the cleaning area at low pressure only.
Detergent dispensing only works when the
spray wand is in the low-pressure position.
10. Keep all spectators at least six feet
from the Engine during operation.
11. Fire Hazard! Do not fill fuel tank while engine is
running. Do not operate if gasoline has been spilled.
Clean spilled gasoline before starting engine.
Do not operate near pilot light or open flame.
12. Do not touch engine during use.
Let engine cool down after use.
13. Do not leave the equipment unattended when it is
running. Turn off the equipment (and remove safety
keys, if available) before leaving the work area.
14. The equipment can produce high noise levels.
Prolonged exposure to noise levels
above 85 dBA is hazardous to hearing.
Wear ear protection when operating the equipment
or when working nearby while it is operating.
15. Wear ANSI-approved safety glasses
and hearing protection during use.
Page 5For equipment technical questions, please call 1-888-866-5797.ITEM 64931
SAFETYSETUPOPERATIONMAINTENANCE
16. People with pacemakers should consult their
physician(s) before use. Electromagnetic fields in
close proximity to a heart pacemaker could cause
pacemaker interference or pacemaker failure.
Caution is necessary when near the
engine’s magneto or recoil starter.
17. Use only accessories that are recommended
by Harbor Freight Tools for your model.
Accessories that may be suitable for one
piece of equipment may become hazardous
when used on another piece of equipment.
18. Do not operate in explosive atmospheres,
such as in the presence of flammable
liquids, gases, or dust. Gasoline-powered
engines may ignite the dust or fumes.
19. Stay alert, watch what you are doing and use
common sense when operating this piece of
equipment. Do not use while tired or under the
influence of drugs, alcohol or medication.
20. Do not overreach. Keep proper footing and
balance at all times. This enables better control
of the equipment in unexpected situations.
21. Use this equipment with both hands only.
Using equipment with only one hand
can easily result in loss of control.
22. Dress properly. Do not wear loose clothing or
jewelry. Keep hair, clothing and gloves away
from moving parts. Loose clothes, jewelry or
long hair can be caught in moving parts.
23. Do not cover the engine or
equipment during operation.
24. Keep the equipment, engine, and
surrounding area clean at all times.
25. Do not smoke, or allow sparks, flames,
or other sources of ignition around the
equipment, especially when refuelling.
26. Use the equipment, accessories, etc., in
accordance with these instructions and in the
manner intended for the particular type of
equipment, taking into account the working
conditions and the work to be performed.
Use of the equipment for operations different from
those intended could result in a hazardous situation.
27. Do not operate the equipment with known
leaks in the engine’s fuel system.
28. When spills of fuel or oil occur, they must be
cleaned up immediately. Dispose of fluids and
cleaning materials as per any local, state, or
federal codes and regulations. Store oil rags in
a bottom-ventilated, covered, metal container.
29. Keep hands and feet away from moving parts. Do
not reach over or across equipment while operating.
30. Before use, check for misalignment or binding of
moving parts, breakage of parts, and any other
condition that may affect the equipment’s operation.
If damaged, have the equipment serviced
before using. Many accidents are caused
by poorly maintained equipment.
31. Use the correct equipment for the application.
Do not modify the equipment and do not use the
equipment for a purpose for which it is not intended.
Vibration Precautions
This tool vibrates during use. Repeated or
long-term exposure to vibration may cause
temporary or permanent physical injury,
particularly to the hands, arms and shoulders.
To reduce the risk of vibration-related injury:
1. Anyone using vibrating tools regularly or for an
extended period should first be examined by a
doctor and then have regular medical check-
ups to ensure medical problems are not being
caused or worsened from use. Pregnant women
or people who have impaired blood circulation
to the hand, past hand injuries, nervous system
disorders, diabetes, or Raynaud’s Disease should
not use this tool. If you feel any medical or
physical symptoms related to vibration (such as
tingling, numbness, and white or blue fingers),
seek medical advice as soon as possible.
2. Do not smoke during use. Nicotine reduces
the blood supply to the hands and fingers,
increasing the risk of vibration-related injury.
3. Wear suitable gloves to reduce the
vibration effects on the user.
4. Use tools with the lowest vibration when there
is a choice between different processes.
5. Include vibration-free periods each day of work.
6. Grip tool as lightly as possible (while still keeping
safe control of it). Let the tool do the work.
7. To reduce vibration, maintain the tool as
explained in this manual. If any abnormal
vibration occurs, stop use immediately.
Operating Precautions (continued)
Page 6 For equipment technical questions, please call 1-888-866-5797. ITEM 64931
SAFETY SETUP OPERATION MAINTENANCE
Service Precautions
1. Before service, maintenance, or cleaning:
a. Turn the engine switch to its “OFF” position.
b. Allow the engine to completely cool.
c. Then, remove the spark plug cap
from the spark plug.
2. Keep all safety guards in place and in
proper working order. Safety guards include
muffler, air cleaner, mechanical guards,
and heat shields, among other guards.
3. Do not alter or adjust any part of the
equipment or its engine that is sealed by the
manufacturer or distributor. Only a qualified
service technician may adjust parts that may
increase or decrease governed engine speed.
4. Wear ANSI-approved safety goggles,
heavy-duty work gloves, and
dust mask/respirator during service.
5. Keep the high pressure hose connected to
the pressure washer and spray gun while the
system is pressurized. Disconnecting the
pressure hose while the unit is pressurized
is dangerous, and may cause injury.
6. Do not allow the high pressure hose to come
in contact with any hot part of the unit. The
hose might be damaged, possibly causing
it to burst or leak under high pressure.
7. Maintain labels and nameplates on the equipment.
These carry important information.
If unreadable or missing, contact
Harbor Freight Tools for a replacement.
8. If water is leaking out of the Pressure Washer
immediately turn off the unit. Unplug the
Pressure Washer, and discharge all pressure
before tightening fittings or having repair
work done by a qualified technician.
9. When the engine is running, do not allow
the Pressure Washer to remain idle for more
than two minutes. If allowed to remain idle,
the water in the unit will heat up, possibly
causing damage to the Pressure Washer.
10. Have the equipment serviced by a qualified repair
person using only identical replacement parts.
This will ensure that the safety of the equipment
is maintained. Do not attempt any service or
maintenance procedures not explained in this
manual or any procedures that you are uncertain
about your ability to perform safely or correctly.
11. Store equipment out of the reach of children.
12. Follow scheduled engine and
equipment maintenance.
Refueling:
1. Do not refill the fuel tank while the
engine is running or hot.
2. Do not smoke, or allow sparks, flames,
or other sources of ignition around the
equipment, especially when refuelling.
3. Do not fill fuel tank to the top.
Leave a little room for the fuel to expand as needed.
TO PREVENT FUEL LEAKAGE AND
FIRE HAZARD, do not fill fuel above
the bottom of fuel strainer.
Max Fuel
DO NOT OVERFILL!
4. Refuel in a well-ventilated area only.
5. Wipe up any spilled fuel and allow excess
to evaporate before starting engine.
To prevent FIRE, do not start the engine
while the smell of fuel hangs in the air.
SAVE THESE INSTRUCTIONS.
Page 7For equipment technical questions, please call 1-888-866-5797.ITEM 64931
SAFETYSETUPOPERATIONMAINTENANCE
Set Up
Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual
including all text under subheadings therein before set up or use of this product.
TO PREVENT SERIOUS INJURY: Operate only with proper spark arrestor installed.
Operation of this equipment may create sparks that can start fires around dry vegetation.
A spark arrestor may be required.
The operator should contact local fire agencies for laws or regulations
relating to fire prevention requirements.
TO PREVENT SERIOUS INJURY FROM ACCIDENTAL STARTING: Turn the Power Switch
of the equipment to its “OFF” position, wait for the engine to cool, and unplug the spark
plug wire(s) before assembling or making any adjustments to the equipment.
Note: For additional information regarding the parts listed in the following pages,
refer to the Assembly Diagrams near the end of this manual.
Assembly
1. Attach the High Pressure Hose
Hanger (15) to the Upper Frame
Handle (14) using two Lock
Nuts (13). Tighten securely.
2. Slide the Upper Frame Handle (14)
over the two upright tubes on
the Frame (2) and press down
until Handle is seated and two
Detent Pins snap into place.
3. Slide the Front Frame Handle (20)
over the two angled tubes on the
Upper Frame Handle and press
down until Handle is seated and
two Detent Pins snap into place.
Upper
Frame
Handle
Upper
Frame
Handle
Front
Frame
Handle
Front
Frame
Handle
Detent
Pin
Upper
Frame
Handle
Upright
Frame
Tube
Upper
Frame
Handle
Upright
Frame
Tube
Upper Frame
Handle
High Pressure
Hose Hanger
Lock
Nut
Page 8 For equipment technical questions, please call 1-888-866-5797. ITEM 64931
SAFETY SETUP OPERATION MAINTENANCE
4. Remove the red shipping plug
from the Pump (22) and replace
with the included Pump Dipstick.
5. Connect the Pressure Hose (26) to the
Outlet Fitting on the Pump (22) by pulling back
the quick connect collar and pushing the Hose
into the fitting. Connect the water supply hose
to the water inlet connection on the Pump
and hand-tighten the Inlet Fitting. The water
source must be able to provide a minimum of
five gallons of clean, cold water per minute
at 40 PSI. Only use a 5/8″ inner diameter (or
larger) hose that is rated to meet this capacity.
6. Connect the Pressure Hose to the handle of
the Spray Gun (25) by pulling back the quick
connect collar on the Hose and pushing the Hose
onto the handle fitting. Squeeze the Trigger
for one minute to purge air from the system.
7. Remove the protective cap on the Wand (24)
inlet. Insert the Wand into the Spray Gun
tip and firmly hand-tighten the nut.
8. Attach the desired Nozzle to the Wand by pulling
back the quick connect collar and pushing the
Nozzle onto the end of the Wand. Make sure the
quick connect collar locks the Nozzle in place.
Pump
Dipstick
Pump
Shipping Plug
Inlet
Fitting
Outlet
Fitting
Water
Supply
Hose
Pressure
Hose
Handle
Fitting
Pressure
Hose
Spray
Gun Tip
Wand
Quick Connect
Collar
Wand
Nozzle
Assembly (continued)
Page 9For equipment technical questions, please call 1-888-866-5797.ITEM 64931
SAFETYSETUPOPERATIONMAINTENANCE
Components and Controls
Trigger
Lock
Trigger
Spray Gun
Handle
Upper Frame
Handle
Pressure
Hose
Frame
Pump
Nozzles
Wand
Engine
Spray Gun
Pump Oil
Dipstick
Detergent
Siphon
Hose
Water Inlet
Fitting
Thermal
Relief Valve
Pressure
Regulator
Front Frame
Handle
Page 10 For equipment technical questions, please call 1-888-866-5797. ITEM 64931
SAFETY SETUP OPERATION MAINTENANCE
Engine Controls
Starter
Handle
Oil Drain Plug
Air Filter Fuel Cap
Fuel Valve
Throttle
Choke
Engine
Switch
Muffler
Oil Cap/Dipstick
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