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Owner's Manual & Safety Instructions
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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.
4400 PSI • 4.2 GPM
GAS POWERED
PRESSURE WASHER
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.
When unpacking, make sure that the product is intact
and undamaged. If any parts are missing or broken,
please call 1-800-444-3353 as soon as possible.
©
Copyright
2024 by Harbor Freight Tools
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 and service may not be included.
Keep this manual for the safety warnings and precautions, assembly,
Only use OuTSiDE
and far away from
windows, doors,
and vents.
®
. All rights reserved.
Visit our website at: https://www.harborfreight.com
Email our technical support at: productsupport@harborfreight.com
Email our engine support at: predator@harborfreight.com
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
72986
24j
®
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Related Manuals for Predator 72986
Summary of Contents for Predator 72986
- Page 1 Email our technical support at: productsupport@harborfreight.com windows are open. and vents. Email our engine support at: predator@harborfreight.com When unpacking, make sure that the product is intact and undamaged. If any parts are missing or broken, please call 1-800-444-3353 as soon as possible.
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Page 2: Table Of Contents
The emissions control system for this Engine is warranted for standards set by the U.S. Environmental Protection Agency and by the California Air Resources Board (also known as CARB). For warranty information, refer to the last pages of this manual. Page 2 For equipment technical questions, please call 1-800-444-3353. ITEM 72986... -
Page 3: Symbol Definitions
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 ITEM 72986 For equipment technical questions, please call 1-800-444-3353. Page 3... -
Page 4: Setup Precautions
Do not spray 15. Wear ANSI-approved safety glasses the tool itself or any electrical wiring/receptacle. and hearing protection during use. Page 4 For equipment technical questions, please call 1-800-444-3353. ITEM 72986... -
Page 5: Vibration Precautions
If you feel any medical or vibration occurs, stop use immediately. physical symptoms related to vibration (such as tingling, numbness, and white or blue fingers), seek medical advice as soon as possible. ITEM 72986 For equipment technical questions, please call 1-800-444-3353. Page 5... -
Page 6: Service Precautions
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. SaVE THESE inSTruCTiOnS. Page 6 For equipment technical questions, please call 1-800-444-3353. ITEM 72986... -
Page 7: Setup
Upper Frame Handle and press down until Handle is seated and two Detent Pins snap into place. upper upper Frame Frame Handle Handle ITEM 72986 For equipment technical questions, please call 1-800-444-3353. Page 7... - Page 8 Quick Connect back the quick connect collar and pushing the Collar Nozzle onto the end of the Wand. Make sure the quick connect collar locks the Nozzle in place. Wand Page 8 For equipment technical questions, please call 1-800-444-3353. ITEM 72986...
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Page 9: Components And Controls
Frame Hose Handle Trigger Front Frame Handle Trigger Lock Spray Gun Pump Engine Frame Wand Pressure regulator Detergent Pump Oil Siphon Dipstick Hose Thermal Water inlet relief Valve Fitting ITEM 72986 For equipment technical questions, please call 1-800-444-3353. Page 9... -
Page 10: Engine Controls
Engine Controls air Filter Fuel Cap Starter Handle Muffler Oil Drain Plug Throttle Choke Fuel Valve Engine Switch Oil Cap/Dipstick Page 10 For equipment technical questions, please call 1-800-444-3353. ITEM 72986... - Page 11 Main Jet 5000 – 6 000 ft. (might remain inside carburetor) Main Jet 6000 – 7000 ft. Bolt Seal Main Jet Fuel Cup Seal Fuel Cup Washer Drain Bolt Bolt Seal Bolt ITEM 72986 For equipment technical questions, please call 1-800-444-3353. Page 11...
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Page 12: Operation
10% ethanol (E10). Do not use E85 ethanol. To prevent FIRE, do not start the engine while the smell of fuel hangs in the air. Page 12 For equipment technical questions, please call 1-800-444-3353. ITEM 72986... -
Page 13: Starting The Engine
To restart a warm engine, leave the Choke in the RUN position. 3. Open the Fuel Valve. 4. Slide the Throttle to 1/3 away from the SLOW position (the “turtle”). ITEM 72986 For equipment technical questions, please call 1-800-444-3353. Page 13... - Page 14 The maintenance break-in period will last about 20 hours of use. • Change the engine oil after this period. Under normal operating conditions subsequent maintenance follows the schedule explained in the MAINTENANCE section. Page 14 For equipment technical questions, please call 1-800-444-3353. ITEM 72986...
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Page 15: Pressure Washer Operation
Pressure Hose connection area of the Pump. See illustration below. Submerge the strainer end of the Detergent Siphon Tube into the container of prepared detergent solution. Only use the Black (low pressure) Nozzle when spraying detergents. ITEM 72986 For equipment technical questions, please call 1-800-444-3353. Page 15... - Page 16 Spray Gun, drain water from Hose and coil. NOTICE Drain fuel at end of season or warranty is void. See Long-Term Storage on page 20 for complete storage instructions. Page 16 For equipment technical questions, please call 1-800-444-3353. ITEM 72986...
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Page 17: Maintenance
4. Clean carbon build-up from combustion chamber Replace fuel line if necessary Service more frequently when used in dusty areas. These items should be serviced by a qualified technician. ITEM 72986 For equipment technical questions, please call 1-800-444-3353. Page 17... - Page 18 8. Thread the dipstick back in clockwise. nOTiCE: Do not run the engine with too little oil. Engine will not start with low or no engine oil. Page 18 For equipment technical questions, please call 1-800-444-3353. ITEM 72986...
- Page 19 6. Apply dielectric spark plug boot protector (not included) to the end of the spark plug and reattach the wire securely. ITEM 72986 For equipment technical questions, please call 1-800-444-3353. Page 19...
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Page 20: Long Term Storage
With spark plug cap disconnected and Engine switch in OFF position, pull Starter Handle several times until antifreeze begins to come out of Pump outlet fitting. e. Remove garden hose from Pump. Page 20 For equipment technical questions, please call 1-800-444-3353. ITEM 72986... -
Page 21: Troubleshooting
Pull Trigger to release pressure in Pump. Turn Pressure Regulator counterclockwise to lowest setting to reduce pressure in system. Follow all safety precautions whenever diagnosing or servicing the equipment or engine. ITEM 72986 For equipment technical questions, please call 1-800-444-3353. Page 21... - Page 22 7. Dissolve by running warm water through the injection tube. Run clean water through injector until clear. Follow all safety precautions whenever diagnosing or servicing the equipment or engine. Page 22 For equipment technical questions, please call 1-800-444-3353. ITEM 72986...
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Page 23: Please Read The Following Carefully
Green Nozzle – 2 5° Washer White Nozzle – 4 0° Bolt Black Nozzle – D etergent Nozzle Panel Spark Plug Wrench 22 21 29 30 31 32 33 34 35 ITEM 72986 For equipment technical questions, please call 1-800-444-3353. Page 23... -
Page 24: Engine Parts List
104A Clip Cylinder Head Gasket 105A Cable Clip Bolt M10 When ordering replacement parts from this list, the “A” suffix must be included in order to get the correct part. Page 24 For equipment technical questions, please call 1-800-444-3353. ITEM 72986... -
Page 25: Engine Assembly Diagram
Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts. Visit harborfreight.com/parts for a list of in stock parts. Reference UPC 1 93175559579. ITEM 72986 For equipment technical questions, please call 1-800-444-3353. -
Page 26: Warranties
As the small off-road engine/equipment owner, you should however be aware that HFT may deny you warranty coverage if your small off-road engine/equipment or a part has failed due to abuse, neglect, or improper maintenance or unapproved modifications. Page 26 For equipment technical questions, please call 1-800-444-3353. ITEM 72986... - Page 27 Controlled hot air intake system. regulator or fuel injection system). b. Intake manifold. b. Air/fuel ratio feedback and control system. c. Air filter. c. Cold start enrichment system. ITEM 72986 For equipment technical questions, please call 1-800-444-3353. Page 27...
- Page 28 3. Ignition System 6. Catalyst or Thermal Reactor System a. Spark plugs. a. Catalytic converter. b. Magneto ignition system. b. Thermal reactor. c. Spark advance/retard system. c. Exhaust manifold. 4. Exhaust Gas Recirculation (EGR) System 7. Particulate Controls a. EGR valve body, and carburetor spacer if applicable. a.
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