PRESSURE WASHER WITH ROBIN 6 HP ENGINE Model 91142 Set up And Operating Instructions Diagrams within this manual may not be drawn proportionally. Due to continuing improvements, actual product may differ slightly from the product described herein. Distributed exclusively by Harbor Freight Tools®. 3491 Mission Oaks Blvd., Camarillo, CA 93011 Visit our website at: http://www.harborfreight.com Read this material before using this product. Failure to do so can result in serious injury. Save this manual.
Specifications Gas Engine Robin , OHV Engine 6 HP, unleaded gas, recoil, 3400 RPM, low oil shutdown; Oil capacity: 20 oz. (0.6 L); Gas capacity: 4 quarts (3.8 Liter) Refer to the Robin maintenance manual for further details Pressure Washer Gun 2900 PSI Maximum, Safety trigger activated gun, 60 -140 Deg .F . Temp. Maximum ( use cold water only). Water Pressure 2,200 PSI rated, 2.500 PSI maximum Water Output 2.2 GPM maximum; unloader valve Water Supply Requirements 3+ GPM recommended; 1.
Use eye and ear protection. Always wear ANSI approved impact safety goggles and heavy rubber boots. During pressure washing, debris can fly back into your face. Wear an ANSI approved dust mask or respirator when working around chemical dusts and mists. 7. 8. Do not overreach. Keep proper footing and balance at all times. Do not reach over or across running machines. 9. Maintain tools with care. Keep tools sharp and clean for better and safer performance.
21. Warning: The warnings, cautions, and instructions discussed in this instruction 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. High Pressure Washer Safety Precautions 1. 2. 3. 4. 5. Fire Hazard! Do not fill gas tank when the engine is running. Do not operate if gasoline has been spilled.
Unpacking When unpacking, check and make sure that the following parts are included. If any parts are missing or broken, please call Harbor Freight Tools at the number on the cover of this manual as soon as possible. Upper Bracket (3A) Bracket Screw (12A) Bracket Screw (12A) Engine (4A) Bottom Bracket (7A) Pump (5A) Water Outlet Connector (9A) High Pressure Hose (1A) Spray Gun Nozzle (13A) Spray Gun (2A) Assembly 1.
Operation Important Guidelines • Do leave the engine running without spraying water. If it is left on for more than three minutes without discharging the high pressure water, damage could occur to the internal pump and high pressure hose. • The water hose should provide at least 3 gallons per minute for the Pressure Washer to operate at maximum performance. Use only 3/4 (dia.) inch water hose supply. A smaller diameter hose limits the amount of water to the pump.
Use 4. Pick up the Spray Gun (2A) and point it away from you. Squeeze the Trigger Handle until all internal air is released, and a steady flow of water comes out. Release the Trigger Handle. 5. Move the Choke Lever (C) to the closed (left) position. See engine photo below. 6. Turn the Fuel Valve (D) to the open (down) position. 7. Move the Throttle Control Lever (E) 1/3 to the left. 8. Turn the red Power Switch (F) to the ON position.
Using Detergent CAUTION! To avoid injury, ONLY run pressure washer detergent through the Detergent Suction Hose. 1. Place the end of the transparent Detergent Suction Hose into the detergent container or bottle. High pressure Low pressure Figure B 2. Do not dilute the detergent. The detergent sprays out at low pressure only. Slide the Spray Nozzle out for low pressure.
Maintenance 1. Wipe down the entire unit with a clean cloth. Do not use any solvents. 2. Store the unit in a clean and dry location, away from anything flammable. 3. Read and follow maintenance instructions for the engine in the Robin Subaru 6 HP Engine Maintenance Manual. 4. If water in leaking from connections during operation, shut down the Pressure Washer and retighten all connections.
Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Pump Assembly Parts List Description Adjusting Cap, PA66 High Pressure Screw Cap, 59-1 Adjusting Spring, 65 Mn Valve Core, 59-1 O-ring, ¢11x1.9 Junction Screw Cap, 59-1 O-ring, ¢22x1.9 O-ring, ¢9x1.9 O-ring, ¢16x1.9 Air-proof Ring, 59-1 Pressing Group Cap, 59-1 Pump Head, Y104 Bolt, M8x30 O-ring, GB1235-76, ¢14x1.9 Valve, Water Inlet-Outlet, POM O-ring, GB1235-76, ¢16x1.9 Cap, Water Inlet Valve, 59-1 Bolt, M8x36 O-ring, GB1235-76, ¢10x1.
Pump Assembly Drawing PLEASE READ THE FOLLOWING CAREFULLY THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER NOR DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT OR THAT HE OR SHE IS QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT.
Item 1A 2A 3A 4A 5A 6A 7A 8A 9A 10A 11A 12A 13A Major Assembly Parts List Description Hose, High Pressure Spray Gun Bracket, Upper Engine, Gas Pump Wheel, Left Bracket, Bottom Connector, Water Inlet Connector, Water Outlet Wheel, Right Screw Screw, Bracket Nozzle, Spray Gun Qty. 1 1 1 1 1 1 1 1 1 1 2 2 1 Major Assembly Drawing SKU 91142 For technical questions, please call 1-800-444-3353.
