Read this material before using this product. Failure to do so can result in serious injury. Save this manual. Copyright © 2012 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 writte...
Page 2 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 table of contents specifications ............................................. 2 safety ......................................................... 3 setup .......................................................... 8 operat...
Page 3 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 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 ...
Page 4 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 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 fi...
Page 5 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 13. Parts of the pressure washer, especially exhaust system components, get very hot during use. Stay clear of hot parts. 14. Do not cover the engine or equipment during operation. 15. Keep the equipment, engine, and surr...
Page 6 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 vibration hazard: 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...
Page 7 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 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...
Page 8 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 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 p...
Page 9 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 assembly 1. 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 f...
Page 10 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 engine switch engine controls starter handle oil drain plug air filter fuel valve choke fuel cap throttle muffler dipstick sa fet y ope r ati o n m aintenan c e setup.
Page 11 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 operation 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. Pre-start checks inspect engine and equipm...
Page 12 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 checking pump oil level 1. The oil pump is filled with 3.75 fl-oz of sae 10w-30 non detergent oil at the factory. Under normal conditions there is no reason to add any oil or change the oil. 2. Turn off engine, allow it ...
Page 13 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 1. To start a cold engine, move the choke to the choke position. To restart a warm engine, leave the choke in the run position. 2. Open the fuel valve. 3. Slide the throttle or speed control lever to 1/3 away from the sl...
Page 14 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 important: allow the engine to run at no load for five minutes with no load after each start-up so that the engine can stabilize. 7. Adjust the throttle as needed. 8. Break-in period: a. Breaking-in the engine will help ...
Page 15 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 pressure washer operation warning do not direct spray from the pressure washer at a person or an animal. The water stream could cause serious injury. Caution use the pressure washer only on surfaces able to withstand the...
Page 16 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 maintenance warning 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 disconnect the spark plug cap before performing any i...
Page 17 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 checking and filling fuel warning! To prevent serious injury from fire: fill the fuel tank in a well-ventilated area away from ignition sources. If the engine is hot from use, shut the engine off and wait for it to cool ...
Page 18 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 air filter element maintenance 1. Remove the air filter cover and the air filter elements and check for dirt. Clean or replace as described below. 2. Cleaning: • for “paper” filter elements: to prevent injury from dust a...
Page 19 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 storage when the equipment is to remain idle for longer than 20 days, prepare the engine for storage as follows: 1. Cleaning: wait for engine to cool, then clean engine with dry cloth. Notice: do not clean using water. T...
Page 20 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 troubleshooting problem possible causes probable solutions engine will not start fuel related: 1. No fuel in tank or fuel valve closed. 2. Choke not in choke position, cold engine. 3. Gasoline with more than 10% ethanol ...
Page 21 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 problem possible causes probable solutions engine stops suddenly 1. Low oil shutdown. 2. Fuel tank empty or full of impure or low quality gasoline. 3. Defective fuel tank cap creating vacuum, preventing proper fuel flow....
Page 22 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 warranties limited 90 day warranty harbor freight tools co. Makes every effort to assure that its products meet high quality and durability standards, and warrants to the original purchaser that this product is free from...
Page 23 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 harbor freight tools emission control defects warranty coverage engines are warranted for a period of two (2) years relative to emission control parts defects, subject to the provisions set forth below. If any emission r...
Page 24 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 parts lists and diagrams please read the following carefully the manufacturer and/or distributor has provided the parts list and assembly diagram in this manual as a reference tool only. Neither the manufacturer or distr...
Page 25 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 general assembly diagram sa fet y ope r ati o n m aintenan c e setup.
Page 26 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 part description 1a screw m8x16 2a flange 3a o-ring 80x2,4 4a radial shaft seal 5a real bearing 6a sheath 7a wobble plate 8a front bearing 9a spring disk 10a 15mm plunger 11a plunger spring 12a crankcase 13a o-ring 14.2x...
Page 27 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 pump assembly diagram sa fet y ope r ati o n m aintenan c e setup.
Page 28 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 item 69734 engine parts list part description qty 1b gasket, cylinder head 1 2b cover subassembly, cylinder head 1 3b gasket, cylinder head cover 1 4b tube, breather 1 5b bolt 4 6b stud 1 7b stud 1 8b stud 2 9b pin 2 10b...
Page 29 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 item 69734 engine assembly diagram 52 45 49 50 50 44 46 43 54 54 41 42 51 52 53 53 39 33 34 35 36 33 37 38 47 48 47 48 51 16 21 22 15 14 17 18 18 17 20 23 23 19 13 32 56 56 56 55 27 27 37 11 1 4 2 3 5 6 8 10 10 10 10 8 7...
Page 30 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 item 69737 engine parts list part description qty 1c gasket, cylinder head 1 2c cover subassembly, cylinder head 1 3c gasket, cylinder head cover 1 4c tube, breather 1 5c bolt 4 6c stud 1 7c stud 1 8c stud 2 9c pin 2 10c...
Page 31 for technical questions, please call 1-800-520-0882. Item 69734 / 69737 item 69737 engine assembly diagram 52 45 49 50 50 44 46 43 54 54 41 42 51 52 53 53 39 33 34 35 36 33 37 38 47 48 47 48 51 16 21 22 15 14 17 18 18 17 20 23 23 19 13 32 56 56 56 55 11 1 4 2 3 5 6 8 10 10 10 10 8 7 9 9 5 5 ...
3491 mission oaks blvd. • po box 6009 • camarillo, ca 93011 • (800) 520-0882.
