Page 1
INSTRUCTIONS-PARTS LIST This manual contains IMPORTANT WARNINGS and INSTRUCTIONS READ AND RETAIN FOR REFERENCE HYDRA-CLEAN 3540, 4043 Pressure Washers HYDRA-CLEAN 3540, 12.5 HP ENGINE P/N 800–706, Series A 3500 psi (241 bar) OPERA TING PRESSURE 3900 psi (269 bar) MAXIMUM WORKING PRESSURE HYDRA-CLEAN 4043, 16 HP ENGINE P/N 800–707, Series A 4000 psi (276 bar) OPERA TING PRESSURE...
Read and understand all instruction manuals before operating equipment. FLUID INJECTION HAZARD General Safety This pressure washer generates very high fluid pressure. Spray from the gun, leaks or ruptured components can inject fluid through your skin and into your body and cause extremely serious bodily injury including the need for amputation.
Page 3
HANDLE AND ROUTE HOSES CAREFULL Y. Do not pull on hoses to move the pressure washer. Do not use chemicals which are not compatible with the inner tube and cover of the hose. DO NOT expose Graco hose to temperatures above 200 –40...
Page 4
Moving parts can pinch or amputate fingers or other body parts. KEEP CLEAR of moving parts when starting or operating the pressure washer. NEVER operate the pressure washer without all guards and interlocks installed and functioning. Follow the TERMS WARNING: Alerts user to avoid or correct conditions that could cause bodily injury.
INSTALLATION HIGH PRESSURE HOSE CONNECTION WATER SUPPLY CONNECTION Figure 1 Check for Shipping Damage Check the unit for any damage that may have occurred in shipping. Notify the carrier immediately if there is any damage. Set Up Fill the battery cells with electrolyte and water. Charge the battery.
Page 6
8. ALWAYS observe the following avoid costly damage to the pressure washer. CAUTION DO NOT allow the pressure washer to idle for more than 10 minutes. Doing so may cause the recirculating water to overheat and seriously damage the pump. Turn off the pressure washer if it will not be spraying or cleaning at least every 10 minutes.
Page 7
5. Tip holding holes are provided on the chassis. CAUTION To avoid blowing the o–ring out of the quick coupler, due to the high pressure in the system, never operate the pressure washer without a tip securely mounted in the quick coupler. Figure 3 308–532...
1. If the pressure washer will be exposed to freezing temperatures, drain all water out of the pump. If it must be stored in freezing temperatures, flush the unit with a 50% anti–freeze solution.
TROUBLESHOOTING CHART To reduce the risk of serious bodily injury, including fluid injection, splashing in the eyes or on the skin or injury from moving parts, always follow the Pressure Relief Procedure Warning before proceeding. Problem Cause Engine will not start or No gasoline in fuel tank or carburetor.
PUMP SERVICE Servicing the Valves 1. Remove the hex valve plug. 2. Examine the o–ring under the plug for cuts or distortion and replace if worn. Lubricate new o–ring before installing. 3. Grasp valve retainer by tab at the top with pliers and remove from valve chamber usually separate during removal.
Page 17
Reassembly: V–Packing Models: 1. Lubricate high pressure packing area in manifold. 2. Insert male adapter with notches down and “v” side 3. Lubricate v–packings and install one–at–a–time with grooved side down. 4. Next install female adapter with grooved side down. 5.
Page 18
803–107, 4043 uses 803–107). ANTI–FREEZE FLUSH KIT 802–327 For flushing system with 50% anti–freeze solution prior to transporting or storing pressure washer in below freezing temperatures. INLET PRESSURE REGULATOR 800–258 Regulates inlet water pressure to 60 psi (4 bar)
THE GRACO WARRANTY WARRANTY AND DISCLAIMERS Graco warrants all equipment manufactured by it and bearing its name to be free from defects in material and workmanship on the date of sale by an authorized Graco distributor to the original purchaser for use. As purchaser’s sole remedy for breach of this warranty, Graco will, for a period of twenty four months from date of sale, repair or replace any part of the equipment proven defective.
Page 21
Please note the changes below and mark them in your manual or keep this sheet with your manual. Pressure washer 800–706 has been obsoleted and is no longer covered by this manual. The following changes apply to the page 13 parts list for 800–707:...
Series Letter Part That Assembly No. Change Changed Model 800–707 803–109 The following three pages replace pages 14 and 15 of manual 308–532: Part Description Description of Change Spray tip, 40045 Deleted – Chemical injector Added 804–388 – Tube, chemical Added 804–275 injector –...
Need help?
Do you have a question about the Hydra-Clean 308-532 and is the answer not in the manual?
Questions and answers