INSTRUCTIONS-PARTS LIST 308–525 Rev A This manual contains IMPORTANT WARNINGS and INSTRUCTIONS READ AND RETAIN FOR REFERENCE HYDRA-CLEAN 3050, 3540, 4043 Pressure Washer HYDRA-CLEAN 3050, 13 HP ENGINE P/N 800–681, Series A 3000 psi (207 bar) OPERATING PRESSURE 3400 psi (234 bar) MAXIMUM WORKING PRESSURE HYDRA-CLEAN 3540, 13 HP ENGINE P/N 800–635, Series A P/N 800–636, Series A 3500 psi (241 bar) OPERATING PRESSURE 3900 psi (269 bar) MAXIMUM WORKING PRESSURE HYDRA-CLEAN 4043, 16 HP ENGINE P/N 800–6
WARNING HIGH PRESSURE SPRAY CAN CAUSE SERIOUS INJURY. FOR PROFESSIONAL USE ONLY. OBSERVE ALL WARNINGS. Read and understand all instruction manuals before operating equipment. FLUID INJECTION HAZARD General Safety Pressure Relief Procedure 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.
FUEL AND EMISSION HAZARDS NEVER fill the fuel tank while the unit is running or hot. The fuel used in this unit is combustible and when spilled on a hot surface can ignite and cause a fire. ALWAYS fill tank slowly to avoid spilling. NEVER operate the unit in a closed building. The exhaust contains carbon monoxide, a poisonous, odorless, invisible gas which can cause serious injury or death if inhaled. NEVER alter the maximum throttle setting, which is factory set.
MOVING PARTS HAZARD Moving parts can pinch or amputate fingers or other body parts. KEEP CLEAR of moving parts when starting or operating the pressure washer. Pressure Relief Procedure before checking or servicing the pressure washer to prevent discharging high pressure fluid from the gun. 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 QUICK COUPLER HIGH PRESSURE HOSE CONNECTION TEE HANDLE (4043 ONLY) SPRAY GUN QUICK COUPLER WATER SUPPLY CONNECTION SPRAY HOSE 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. Be sure the battery connections are correct and secure. Connect the fuel line to the engine using the quick coupler provided.
STARTUP Always use this startup procedure to ensure that the unit is started safely and properly. 1. Check oil levels. Engine: Add SAE 30 or 10W–30 weight detergent oil as necessary. Pump: Add SAE 20 or 30 weight non–detergent oil as necessary. NOTE: This pressure washer is equipped with a low–oil sensor that shuts the engine off if the oil level falls below a certain level. If the unit stops unexpectedly, check both the oil and the fuel levels. Check the oil level each time the unit is refueled.
Trigger Safety Latch WARNING To reduce the risk of serious bodily injury, including fluid injection, splashing in the eyes or on the skin, ALWAYS engage the trigger safety latch whenever spraying stops, even for a moment. In the engaged position, the trigger safety latch prevents the gun from being triggered accidentally by hand or if it is dropped or bumped. Be sure the latch is pushed fully down when engaging it or it cannot prevent the gun from being triggered. See Figure 2.
SHUTDOWN, FLUSHING AND STORAGE MAINTENANCE Observing regular maintenance intervals helps ensure that you get maximum performance and life from the pressure washer. WARNING Pressure Relief Procedure To reduce the risk of serious bodily injury, including fluid injection and splashing in the eyes, or on the skin, always follow this procedure whenever you stop spraying for more than 10 minutes, when shutting down, and before checking or repairing any part of the system. 1. Engage the trigger safety latch.
TROUBLESHOOTING CHART WARNING 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 Solution Engine will not start or is hard to start No gasoline in fuel tank or carburetor. Fill the tank with gasoline, open fuel shut off valve. Check fuel line and carburetor. Low oil level. Add to proper level. Start/Stop switch in Stop position.
PARTS DRAWING 800–635 & 800–636 Hydra–Clean 3540 Pressure Washer 76 77 77 76 89 37 63 5 1 87 63 5 88 38 87 86 85 47 2 62 45 46 5 2 48 3 37 48 4 5 50 49 51 61 60 58 33 34 35 36 71 72 73 74 29 5 53 52 57 58 57 70 55 9 59 32 64 15 31 28 54 56 1 2 7 8 11 5 5 44 27 65 30 2 10 6 67 66 25 2 5 16 17 24 20 22 19 18 5 23 83 40 87 89 79 5 13 12 84 14 43 69 39 26 42 81 41 82 80 91 78 75 92 21 90 10 308-525 69 26 42 68 6
PARTS LIST 800–635 & 800–636 Hydra–Clean 3540 Pressure Washer REF NO. 1 2 3 4 5 6 PART NO.
PARTS DRAWING 800–637 Hydra–Clean 4043 Pressure Washer 76 77 89 37 2 63 5 88 38 1 2 87 87 86 85 47 62 46 5 2 3 48 4 5 50 6 49 51 61 60 58 33 34 35 36 71 72 73 74 29 5 53 52 57 58 57 70 55 9 59 32 64 15 31 28 54 56 1 7 8 11 2 5 30 2 5 27 65 10 6 44 67 45 66 68 25 2 5 16 17 24 20 22 19 18 5 23 84 40 87 89 79 5 13 14 83 81 12 39 43 69 26 42 82 41 80 91 78 92 21 90 12 308-525 69 26 42 75
PARTS LIST 800–637 Hydra–Clean 4043 Pressure Washer REF NO. 1 2 3 4 5 6 PART NO.
PARTS DRAWING 800–681 Hydra–Clean 3050 Pressure Washer 77 76 37 63 5 1 2 62 45 38 46 47 5 2 3 48 4 5 50 49 51 61 60 58 33 34 35 36 71 72 73 74 29 5 53 52 57 58 57 70 32 55 9 59 64 15 31 28 54 56 1 2 7 8 11 5 5 44 27 65 30 2 10 6 67 66 25 2 5 16 17 24 20 22 84 19 18 69 5 23 12 26 42 13 14 43 69 83 79 5 26 42 81 82 41 80 75 78 21 14 308-525 68 6
PARTS LIST 800–681 Hydra–Clean 3050 Pressure Washer REF NO. 1 2 3 4 5 6 PART NO.
PARTS DRAWING Pump Assembly, 3000 psi (used on Model 3050), 3500 & 4000 psi (used on Models 3540 & 4043) 10 9 63 65 8 67 66 64 55 7 11 6 5 4 1 44 45 46 47 60 61 62 3 2 54 53 52 11 10 57 58 59 9 50 48 51 49 13 19 14 56 20 18 12 12 17 45 44 43 42 40 16 15 41 39 21 28 23 26 22 38 16 308-525 14 37 31 36 35 33 29 32 24 34 25 31 27 30
PARTS LIST Pump Assembly, 3000 psi (used on Model 3050), 3500 & 4000 psi (used on Models 3540 & 4043) REF PART NO. NO.
PUMP SERVICE WARNING 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. NOTE: NOTE: The following metric wrenches are needed: M10, M13 and M30. Repair kits are available. Refer to the individual repair sections and the pump parts page for more details. For the best results, use all parts in the kits. 1.
Servicing the V–Packings NOTE: There are two types of packing kits: one is packings only, the other includes the packings, rings and retainers. 1. Remove the manifold as outlined in the Pumping Section. 2. Carefully pull the packing retainer from the manifold. Examine the o–ring and replace it if it is cut or damaged. 3. Remove the v–packing and head ring. Pull out the intermediate retainer ring. Remove the second v–packing and second head ring. 5.
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.
3X8–525 Rev. D Parts Change Notice Some parts in Rev. A of manual 308–525 have changed but have not yet been changed in the instruction manual. Please note the changes below and mark them in your manual or keep this sheet with your manual. The following pressure washers have been obsoleted and are no longer covered by this manual: 800–681 800–635 800–637 The following changes apply to the page11 parts list for 800–636: Assembly No. Series Letter Change Part That Changed Ref No.
Pump Assembly – Parts USE ONLY GENUINE GRACO PARTS AND ACCESSORIES Ref. No. Part No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 801–467 803–504 801–468 801–469 KIT 1 KIT 1 KIT 1 KIT 1 KIT 1 KIT 4 or 106 KIT 4 or 106 KIT 1 803–283 803–284 803–506 Description MANIFOLD MANIFOLD, 3500 & 4000 psi SCREW, Cap, hex hd WASHER, lock O-RING SEAT, Valve PLATE, Valve SPRING GUIDE, Valve O-RING CAP VALVE ASSEMBLY SCREW, Cap, socket hd COVER, Crankcase.
Kit No. Repair Kit Part No. Ref No.