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Instructions -- PartsList
GHSeriesRoofRigs
Gas--HydraulicAirlessSprayers
308972R
ImportantSafetyInstructions
Read all warnings and instructions in this manual.
Save these instructions.
GH5030
Model687100,SeriesC
4900 psi (33.8 MPa, 337 bar)
Maximum Working Pressure
GH3640
Model687327,SeriesD
3600 psi (24.5 MPa, 245 bar)
Maximum Working Pressure
GH2560
Model965168,SeriesB
2400 psi (16.6 MPa, 166 bar)
Maximum Working Pressure
GH2075
Model965171,SeriesB
1800 psi (12.4 MPa, 124 bar)
Maximum Working
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TableofContents Warnings...................................... 2 Displacement Pump Service .................... 16 Sprayer Parts Drawing ......................... 18 Component Identification ........................ 5 Setup ......................................... 5 Sprayer Parts List ............................. 34 Flushing....................................... 8 Accessories .................................. 37 Operation .................................... 10 Technical Data ...............
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WARNING SKININJECTIONHAZARD Spray from the gun, leaks or ruptured components can inject fluid into your body and cause extremely serious injury, including the need for amputation. Fluid splashed in the eyes or on the skin can also cause serious injury. D Fluid injected into the skin may look like just a cut, but it is a serious injury. Getimmediatesurgi- cal treatment. D Do not point the gun at anyone or at any part of the body. D Do not put your hand or fingers over the spray tip. D Do not stop
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WARNING FIREANDEXPLOSIONHAZARD Improper grounding, poor ventilation, open flames or sparks can cause a hazardous condition and result in a fire or explosion and serious injury. D If there is any static sparking or you feel an electric shock while using this equipment, stop spray- ing immediately. Do not use the equipment until you identify and correct the problem. D Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid being sprayed. D Keep the spray ar
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ComponentIdentification HYDRAULICRETURNLINETOMOTOR HYDRAULICSUPPLYLINETOMOTOR MOTORRESETBUTTON HYDRAULICMOTOR HYDRAULIC RESERVOIR GASOLINE SUCTIONTUBE FILLCAP CHECK VALVE PRESSURE HYDRAULIC DRAINVALVE PUMP DISPLACEMENTPUMP 9089d PRESSURE SUCTIONHOSE Fig 1 CONTROLKNOB Setup 1. ConnecttheHoseand Gun c. Don’t use thread sealant on the swiveling nut of the hose couplings, anddon’t install the a. Remove the plastic cap plug from the outlet spray tip yet. tee and screw an accessory, conductive or grou
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Setup 3. ChecktheHydraulicOil Level GASOLINE FILLCAP a. Unscrew the hydraulic oil fill cap. See Fig 2. The dipstick is attached to the cap. The oil should be up to the full line on the dipstick. OIL DIPSTICK CAUTION To prevent damage to the cooling system and hydraulic pump, use only Graco Hydraulic Fluid, 169236 (5 gal./20 liter) or 207428 (1 gal/3.8 liter). Other types of hydraulic oil may damage the hydrau- lic components. b. Add oil as needed to the proper level. A completely full hydraulic
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Setup 5. Fill theFuel Tank 6. Grounding WARNING WARNING FIREANDEXPLOSIONHAZARD FIREANDEXPLOSIONHAZARD To reduce the risk of static sparking, fire Fuel spilled on a hot surface can cause or explosion which can result in serious a fire or explosion and serious bodily bodily injury and property damage, injury and property damage. Shut off ground the sprayer, all system components, and engine and let it cool before filling the the object being sprayed as instructed underFIRE tank. Carefully follow s
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Flushing When to Flush 4. Changing fromoil--baseto water--basepaint. Flush with mineral spirits, followed by soapy water, 1. New sprayer. Your new sprayer was factory tested then a clean water flush. with lightweight oil which was left in to protect 5. Storage. pump parts from corrosion. Water-base paint: flush with water, then mineral Beforeusing oil-basepaint, flush with mineral spirits and leave the pump, hose and gun filled spirits only. with mineral spirits. Follow thePressureRelief Before
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Flushing 12. Circulate the solvent until the system is thoroughly flushed. WARNING 13. Release the trigger and engage the gun safety FIREANDEXPLOSIONHAZARD latch. To reduce the risk of static sparking and splashing when flushing, always remove 14. Ifyou aregoing to startspraying, place the the spray tip from the gun and hold a pump or suction tube into the supply container. Follow thePressureRelief Procedure on page metal part of the gun firmly to the side of a 10. Engage the gun safety latch un
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Operation PressureRelief Procedure 2. Starting theSprayer a. Open the bypass valve to make startup easier. WARNING In the open position, the valve lever is parallel to the body of the valve. See Fig 6. Close the SKININJECTIONHAZARD filter drain valve. The system pressure must be manually b. Turn the pressure control knob counterclock- relieved to prevent the system from wise until all spring tension is relieved. You will starting or spraying accidentally. Fluid be able to feel it. The sprayer is
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Operation Ifthemotorstallsduringoperation,turnOFFtheigni- tion key. With your hand, firmly press straight down on CAUTION the motor reset button. Now try to restart the sprayer. If The engine throttle has been set to a maximum of it will not start, refer to the separate motor manual, 307158. 3000 RPM. The sprayer warranty will be voided and the hydraulic pump life shortened if this adjustment is changed. CAUTION Never use a hammer to depress the reset button, as 6. Cleaning aClogged Tip it could
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Maintenance 1. Alwaysstop thepump atthebottomofits 8. Changeengineoil and filterevery100hourof stroke when you take a break and at the end of use. Use 30W detergent oil. the day. This helps keep fluid from drying on the 9. To changethehydraulicoil: rod and damaging the packings. a. Follow thePressureRelief Procedure 2. Keep thedisplacement pump packing nut/wet Warning on page 10. cup 1/3full ofTSL at all times. The TSL helps protect the packings and rod. b. Place a waste container under the drai
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Troubleshooting WARNING SKININJECTIONHAZARD To reduce the risk of serious injury, whenever you are instructed to relieve pressure, follow thePressureRelief Procedure on page 10. Check everything in the troubleshooting chart before disassembling the sprayer. PROBLEM CAUSE SOLUTION Gas engine doesn’twork properly. Consultengine manual,supplied. Gas engine willnotstart. Check battery. Gas engine operates,but Hydraulic motorstalled. Turn the ignition key to OFF.Firmly press displacementpump doesn’t
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Replacing theHydraulicPump 8. Pull the pump straight off the pump support. 1. Follow thePressureRelief ProcedureWarning 9. Loosen the setscrews (108) on the pump half of on page 10. Let the hydraulic system cool before the coupler (109). See Fig 9. beginning the service procedure. 10. Remove all fittings from the old pump and install 2. Unscrew the reservoir drain plug (51, page 36), them on the new pump in the same order. having a container ready to catch the draining fluid. 11. Check Dimension
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Replacing theCoolerand Blower c. Pull the pump support and blower off far enough for the blower to fall out of the bottom 1. Follow thePressureRelief ProcedureWarning of the housing. on page 10. Let the hydraulic system cool before beginning the service procedure. d. Install a new blower. Secure the pump support (117) to the engine. See Fig 8. 2. Remove the hydraulic pump as instructed in the previous section. e. Check Dimension A as shown in Fig 9 and tighten the coupler setscrews (108). Butt t
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DisplacementPumpService 210208Displacement Pump Disconnect theDisplacement Pump 9. Refer to separate pump manual for displacement pump repair instructions. 1. Flush the pump if possible. Stop the pump on the down stroke. Reconnecting theDisplacement Pump 1. Screw the connecting rod (91) into the connecting 2. Follow thePressureRelief ProcedureWarning rod coupling (36, page 30) and replace the lower on page 10. cotter pin (89). Screw the jam nut (90) all the way down. See appropriate sprayer part
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DisplacementPumpService 237510and 222801Displacement Pumps Disconnecting theDisplacement Pump Reconnecting theDisplacement Pump 1. Flush the pump, if possible. Stop the pump at the 1. Make sure coupling nut (170) and coupling collars bottom of its stroke. (80) are in place on displacement rod (Ref. 29). WARNING 2. Use at least two people to hold the displacement To reduce the risk of serious injury whenever you pump while another reconnects it to the motor (see are instructed to relieve pressure
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GH5030PartsDrawing 29 79 125 82 76 31 77 34 65 22 Ref 29 80 100 103 143 170 32 47 70 101 49 177 104 48 84 38 46 Ref 26 81 166 39 144 44 127 45 43 9086B Model 687100 18 308972
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GH5030PartsList REF REF NO. PARTNO. DESCRIPTION QTY NO. PARTNO. DESCRIPTION QTY 1 107074 BREATHER,fillcap 1 61 216141 SUPPORT,engine 1 2 106114 STRAINER,inlet 1 62 100468 CAPSCREW,hex hd,3/8 x 1.5 in. 4 3 107053 ELBOW,pipe,90_, 1/2 x 3/8 npt 1 63 104766 MOUNT,motor 4 4 107128 TEE,service 1 64 100023 WASHER,3/8 in. 18 5 107050 INSERT,hose,1/2 npt(f) 3 65 177765 PLUG,handle 2 7 178859 HOSE,rubber,5 in.(125 mm) 1 67 100678 CAPSCREW,hex hd,5/16 X 1.75 in. 4 8 102473 CLAMP,hose 6 68 803444 DAMPENER,p
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GH5030PartsList(cont.) REF REF NO. PARTNO. DESCRIPTION QTY NO. PARTNO. DESCRIPTION QTY 121 107139 BOLT,carriage,1/4 x 1 in. 1 170 197340 NUT,Coupling 1 122 100015 NUT,hex,1/4--10 unc 1 171 113819 NUT,1/4 in. 2 123 178787 SHELF,battery 1 172 100022 SCREW,cap,1/4 in. 2 124 217286 CHECK VALVE,1 in.npt(fbe) 1 173 100016 WASHER,lock 2 125 196845 LABEL,ID,top 1 176 070401 TUBING,electrical,13 in. 1 127 180233Y LABEL,warning 2 177 244820 CLIP,hairpin,with lanyard 1 130 156172 UNION 1 181 191863 GUARD,h
