234156 60 psi (4.1 bar) Maximum Working Pressure a Pressure Relief Procedure A-A. To reduce the risk of serious bodily injury, including electric shock and splashing fluid in eyes, follow this procedure whenever you stop spraying: 1. Shut OFF air source. 2. Disconnect power source. 3. Turn gun air valve ON. A WARNINGS Pressurized Equipment Hazard Fluid from gun, leaks or ruptured components can splash in the eyes or on skin and cause serious injury. • Follow Pressure Relief Procedure

Obstructed fluid hose or gun/valve Fluid dried on the displacement rod Dirty or worn air motor parts Refill and reprime or flush. Clear; see TECHNICAL DATA on back cover. Open, clear. Clear.* Clean. See SERVICE. Clean, service. See air motor manual, supplied. Pump operates but outputlow on both strokes Exhausted fluid supply Restricted line or inadequate air supply Insufficient air pressure, closed or clogged airvalves, etc. Obstructed fluid hose or gun/valve Bleeder valve open or worn Air leaki

The 20:1 King Pump develops 1800 psi (124 bar) MAXIMUMWORKING PRESSUREat 90 psi(6 bar) air pressure. Never exceed these pressures. Be sure that all spray/dispensing equipment and accessories are rated towithstand the maximum working pressure of the pump. DO NOT exceed the maximum working pressure of any component or accessory used inthe system. CHECK all spray/dispensing equipment regularly and repair or replace worn or damaged parts immediately. Always wear protective eyewear, gloves, clothing

Install a fluid drain valve (H) close to the pump fluid outlet. Then connect a grounded fluid supply hose (L). Between the fluid supply hose (L) and the gun/dispensingvalve (K), install a whip hose (M) for greater flexibility. NOTE: To use the optional fluid outlet at the base of the air motor, connect a riser tube between the standard outlet and the optional outlet. GROUNDING WARNING Before operating the pump, ground the system asexplained under FIRE OR EXPLOSION HAZARD and Grounding on page 3.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2, 3 Typical Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Troubleshooting Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Loosely screw the tie rod locknuts (44) onto the tierods (52). Lubricate the o–ring (47) and the topthread of the connecting rod (53). TIghten the coupling nut (50) to attach the displacement pump to the motor. Insert the cotter pin (41). 15. Start the pump and run it slowly to check for binding. Adjust the tie rods as necessary , then torque thelocknuts (44) to 40–50 ft–lb (54–68 N.m). 16. Reconnect the fluid and air lines. Reconnect the ground wire if it was disconnected during service. Fig 2

x 1.5” (38 mm) long 1 42 100–104** PIN, cotter; 0.125” (3.2 mm) dia. x 1.75” (45 mm) long 1 44 101–712 NUT, lock; 5/8–11; w/nylon insert 3 45 101–936 NUT, hex, jam; 3/4” 1 47 158–674** O–RING, nitrile rubber 1 49 168–211 COUPLING, connecting rod Model 222–248 only 1 161–543 COUPLING, connecting rodModels 215–873 & 204–287 only 1 50 168–210 NUT, shouldered Model 222–248 only 1 161–544 NUT, shouldered Models 215–873 & 204–287 only 1 52 168–824 ROD, tie; 13–7/8” (352.4 mm) long, shoulder to shoulde

3/4 npt(f) inlet and outlet. ACCESSORIES CONTINUED ON THE NEXT PAGE . 306–646 ACCESSORIES USE GENUINE GRACO PARTS AND ACCESSORIES Mustbe purchased separately. GRACO THROAT SEAL LIQUID FLOOR STAND KIT 222–699 Non–evaporating liquid for wet cup Provides secure floor mounting for pump when used with bulk fluid containers. 3” npt fluid inlet. Includes instruc206– 995 1 quart (0.95 liter) tions. (Part nos. 185–443 Ring and 185–445 Plate, in206– 996 1 gallon (3.8 liter) cluded in the kit, are not used

T This manual contains important Supersedes N warnings and information. Firstchoice when and PCN R READ AND KEEP FOR REFERENCE. quality counts.. (includes Rev. S INSTRUCTIONS changes) LOW PRESSURE, MEDIUM VOLUME HIGH-FLO Pumps NOTE: Stainless steel pumps are severe-duty and electropolished, for use with water-base coatings Refer to page 2 for the Table of Contents. For Pump Model Nos., Ratios and Working Pressures, refer to page 3. NOTE: Refer to manual 307–837 for adapter kits for mounting the

253704, Series B 3:1 Ratio Air-operated Double Diaphragm Pump, with BSPP Fittings Part No. 253705, Series B 3:1 Ratio Air-operated Double Diaphragm Pump, with NPT Fittings 100 psi (0.7 MPa, 7 bar) Maximum Air Input Pressure 300 psi (2.1 MPa, 21 bar) Maximum Fluid Working Pressure Important Safety Instructions Read all warnings and instructions in this manual. Save these instructions. TI2125A Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441 Copyright 2006, Graco Inc. is registered to I.S. EN I