Graco 309303V- User Manual

309303 5 WARNING PRESSURIZED FLUID HAZARD Spray from the gun, hose leaks, or ruptured components can splash fluid in the eyes or on the skinand cause serious injury. Do not stop or deflect fluid leaks with your hand, glove, or rag. Follow the Pressure Relief Procedure on page 11 before cleaning, che...

6 309303 Installation General Information Fig. 2 shows a wall mounted HVLP spray applica-tion. It is only a guide for selecting and installingsystem components. Contact your Graco distributorfor assistance in planning a system to suit yourneeds. Always use Genuine Graco Parts and Accessories,availab...

309303 7 Installation Grounding WARNING FIRE AND EXPLOSION HAZARDThis pump must be grounded. Beforeoperating the pump, ground the systemas explained below. Also read the sec-tion FIRE AND EXPLOSION HAZARDon page 4. To reduce the risk of static sparking, ground the pumpand all other equipment used or...

8 309303 Installation Air Line WARNING A bleed-type master air valve (B) is required in yoursystem to relieve air trapped between this valveand the pump. See Fig. 2. Trapped air can causethe pump to cycle unexpectedly, which could resultin serious injury, including splashing in the eyes oron the ski...

309303 9 Installation KEY A TRITON 308 Pump B Bleed-type master air valve(required for pump) C Air supply line D Air line filter E Air line shutoff valve F Pump air regulator G Gun air regulator (used in spray system only) H Fluid pressure regulator (used in spraysystem only) J Drain/circulation val...

10 309303 Installation Fluid Suction Line Screw the suction line (L) into the pump inlet (M)snugly. Use a compatible liquid thread sealant onconnections to prevent air from getting into the fluidline. Do not pressure feed this pump. See the Technical Data on page 24 for maximumsuction lift. Use an a...

309303 11 Operation Pressure Relief Procedure WARNING The system remains pressurized until pressure ismanually relieved. To reduce the risk of seriousinjury from pressurized fluid, accidental spray fromthe gun, or splashing of any fluid, follow this proce-dure whenever you Stop spraying Are instruct...

12 309303 Maintenance Tightening Threaded Connections Before each use, check all hoses for wear or damage.Replace as necessary. Check that all threaded con-nections are tight and leak-free.NOTE: Periodically, re–torque fluid cover screws (38)to 10 ft–lb (13.6 N m). Cleaning Clean the outside of the ...

14 309303 Service Remove the Fluid and Side Covers Tools Required Torque wrench 2.5 mm allen wrench 6 mm allen wrench Adjustable wrench Disassembly WARNING To reduce the risk of serious injury whenever youare instructed to relieve pressure, always follow thePressure Relief Procedure on page 11. 1. R...

16 309303 Service Ball Check Repair Tools Required O-ring pick DisassemblyNOTE: Ball Check Repair Kit 245067 is available.Parts included in the kit are marked with a doubledagger, for example (21 ). Use all the parts in the kit for the best results. 1. Remove the fluid covers. See page 14. 2. Remove...

309303 17 Service Diaphragm Repair Tools Required M8 bolt M8 hexnut Adjustable wrench, or vise NOTE: Diaphragm Repair Kit 245065 is available.Parts included in the kit are marked with an asterisk,for example (6*). Always replace both diaphragms forthe best results. 1. Remove the fluid covers. See pa...

18 309303 Service Air Valve Repair Tools Required 3 mm allen wrench Needlenose pliers Retaining ring removal tool O-ring pick Disassembly NOTE: Air Valve Repair Kit 245066 is available. Partsincluded in the kit are marked with a dagger, for exam-ple (8 ). Use all the parts in the kit for the best re...

20 309303 Service Shaft Repair Tools Required Needlenose pliers O-ring pick Retaining ring removal tool Vise with soft jaws Disassembly NOTE: Shaft Repair Kit 24A155 is available. Partsincluded in the kit are marked with a star, for example(5 ). Use all the parts in the kit for the best results. NOT...

22 309303 Parts Part No. 233500 Aluminum Pump, Series D, npt threads Part No. 233501 Stainless Steel Pump, Series C, npt threads (Shown) Part No. 233776 Aluminum Pump, Series C, BSPP threads Part No. 233777 Stainless Steel Pump, Series C, BSPP threads 1 3 4 5 *6 6* 7 8 9 10 11 12 13 14 15 16 17 18 1...

24 309303 Technical Data Category Data Maximum fluid workingpressure 115 psi (0.8 MPa, 8.0 bar) Air pressure operating range 12 to 115 psi (.08 to 0.8 MPa, 0.8 to 8.0 bar) Ratio 1:1 Maximum free flow delivery 8.5 gal./min (32 l/min) Operating fluid temperaturerange 50 to 176 C (10 to 80 C) Maximum s...

309303 25 Dimensions BOTTOM VIEW SIDE VIEW Aluminum Two 0.35 in. (9 mm) diameterholes, for mounting pump 4.1 in. (104 mm) 4.53 in. (115 mm) 3/8 npt or 3/8 BSPP Fluid Outlet 3/4 npt or M26 x 1.5 Fluid Inlet 1/4 npt or 1/4 BSPP Air Inlet 4.88 in. (124 mm) 8.2 in. (208 mm) ti1037a TI3265A SIDE VIEW SST...