Graco 800-638 - Manual

308–529 5 INSTALLATION Figure 1 SPRAY GUN SPRAY HOSE QUICK COUPLER QUICK COUPLER HIGH PRESSURE HOSE CONNECTION INLET WATER CONNECTION 3/4” GARDEN HOSE 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. Se...

308–529 6 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: Some units are equipped with a low–oil ...

308–529 8 SHUTDOWN, FLUSHING AND STORAGE 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 befo...

308–529 9 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 Low pressure and/or pump run...

308–529 10 PARTS DRAWING 800–638 & 800–690 Hydra–Clean 2540 Pressure Washer 8 7 4 29 12 11 10 10 18 23 33 20 24 35 36 42 44 26 25 3 3 0 32 26 3226 28 22 2627 34 11 10 61 60 20 6 21 43 65 64 38 17 19 5 2 14 1 63 9 15 16 13 15 16 47 10 10 11 52 62 56 57 58 37 49 50 47 47 51 13 51 48 46 45 53 54 39...

308–529 11 PARTS LIST 800–638 & 800–690 Hydra–Clean 2540 Pressure Washer REF PART NO. NO. DESCRIPTION QTY 1 800–392 GUN & WAND ASSEMBLY (incl. 2, 5, 9, 15, 17, 47) 1 2 803–350 GUN, Spray (see Instruction Manual 308–511) 1 3 181–867 LABEL, Warning, ventilation 1 4 802–363 LABEL, Caution 1 5 8...

308–529 14 GEAR REDUCER 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 on page 2 before proceeding. Replacing the Gasket (9) NOTE: To maintai...

308–529 15 PARTS DRAWING 802–143 Gear Reducer 1 2 3 4 21 20 5 6 7 8 9 19 12 18 17 15 16 12 13 10 14 11 PARTS LIST 802–143 Gear Reducer REF PART NO. NO. DESCRIPTION QTY 1 802–332 O–RING 1 2 802–333 COVER, Mounting 1 3 802–334 SCREW, Set 1 4 802–335 GEAR, Pump 1 5 802–336 GEAR, Engine 1 6 802–337 RING...

308–529 18 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: The following metric wrenches are needed: M10, M13 ...

308–529 19 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 repl...

308–529 20 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 bre...