Graco 311772P User Manual

-For Water-Based Materials Only-Models: 254974 and 25497570 psi (0.49 MPa, 4.9 bar) Maximum Fluid Working PressureRelated ManualsImportant Safety Inst

RotoFlex™ II Pump (RTX 1250) 10 311772MRotoFlex™ II Pump (RTX 1250)Disassemble1. Relieve Pressure, page 6.2. Unplug sprayer from outlet.3. Loosen knob

RotoFlex™ II Pump (RTX 1250)311772M 11Reassemble1. Bend hose (16) so colored dots on hose fittings face each other.2. Slide new pump hose (16) in from

Compressor 12 311772MCompressorUse Compressor Repair Kit, 288612.Disassembly1. Relieve Pressure, page 6.2. Unplug sprayer from outlet.3. Remove Shroud

Compressor311772M 13Reassembly1. Carefully position compressor back into sprayer body. Make sure piston head facing front of sprayer.2. Replace and ti

Piston/Cylinder 14 311772MPiston/CylinderUse Piston/Cylinder Repair Kit 288609.Disassembly1. Relieve Pressure, page 6.2. Unplug sprayer from outlet.3.

Piston/Cylinder311772M 15Reassembly1. Replace piston (77) and cylinder (76) and use 7/32 in. allen wrench to tighten hex screw (87) into piston rod.2.

Valve Plate 16 311772MValve PlateUse Valve Plate Repair Kit 288610.Disassembly1. Relieve Pressure, page 6.2. Unplug sprayer from outlet.3. Remove Shro

Motor311772M 17MotorUse Motor Repair Kit 288613.Disassembly1. Relieve Pressure, page 6.2. Unplug sprayer from outlet.3. Remove Shroud, page 7.4. Remov

Motor 18 311772MReassembly1. Angle motor pulley through compressor belt (84) and pull motor (71) into position. 2. Tighten two mounting bolts (105) on

Cooling Tube311772M 19Cooling TubeUse Cooler Repair Kit 288614.Disassembly1. Relieve Pressure, page 6.2. Unplug sprayer from outlet.3. Remove Shroud,

Warnings 2 311772MWarningsThe following are general warnings related to the setup, use, grounding, maintenance and repair of this equipment. Additiona

Cooling Tube 20 311772MReassembly1. Insert new cooling tube fitting and use 5/8 in. wrench to tighten.2. Insert cooling tube (79) and push into new fi

Idler311772M 21IdlerUse Idler Repair Kit 288611.Disassembly1. Relieve Pressure, page 6.2. Unplug sprayer from outlet.3. Remove Shroud, page 7.4. Remov

Roller Pulley/Belt 22 311772MRoller Pulley/BeltUse Roller Pulley Repair Kit 288616.Disassembly1. Relieve Pressure, page 6.2. Unplug sprayer from outle

Selector Switch Knob311772M 23Selector Switch KnobUse Knob Repair Kit 288756.Disassembly1. Turn selector switch knob clockwise as far as it will go.2.

Regulator Valve 24 311772MRegulator ValveUse Regulator Repair Kit 288757.Disassembly1. Remove Knob, page 23.2. Remove Shroud, page 7.3. Use wrench to

Troubleshooting311772M 25TroubleshootingProblem Cause SolutionSprayer won’t run Power switch not on Turn switch on.No power at wall outlet Check outle

Troubleshooting 26 311772MSpeed of application slow or slower Material too thick Thin material. Nozzle too small Change nozzles to a larger size. See

Wiring Diagram311772M 27Wiring DiagramAir Diagram4019342149SwitchMotorWhite WireBlack WirePower CordGreen Wire (GND)ti8937a49CylinderAir ValveManifold

Parts Drawing 28 311772MParts Drawing Models 254974 and 25497523424327254210114031301412635623215ti8901c1486247372246297128(RTX 900)47(RTX 900)7076827

Parts Drawing311772M 29Parts Drawing Models 254974 and 254975619613416382126292935505951541529ti8902b5227343649•••RTX 1250 Only663365698049•57RTX 1250

Warnings311772M 3Electric Shock HazardTo reduce the risk of electric shock: • Be sure sprayer is adequately grounded through electrical outlet, page

Parts List 30 311772MParts ListModels 254974 Additional warning labels are available at no cost.Ref. Part Description Qty.1 288386 PLATE, front, RTX

Parts List311772M 31Parts ListModels 254975 Additional warning labels available at no cost.Ref Part Description Qty1 288386 PLATE, front, RTX 12 15J6

Parts Drawing and List 32 311772MParts Drawing and ListCompressor 288856 & 2886511101007475711081091061057773878384871011027279ti8903a8676117Ref.

Technical Data311772M 33Technical Data* Measured while spraying at 1 m** Measured per ISO-3744Main unit power requirements 120 Vac, 60 Hz, 15A, 1 phas

All written and visual data contained in this document reflects the latest product information available at the time of publication. Graco reserves th

Warnings 4 311772MCAUTIONWater or material remaining in unit when temperatures are below freezing can damage motor and/or delay pump startup.To insure

Component Identification311772M 5Component IdentificationItem Component Item ComponentA Handle N Burp GuardB Toolbox P Material/Air HoseC Power Cord (

Component Identification 6 311772MPressure Relief ProcedureTo reduce risk of injury, follow this procedure whenever you see this symbol throughout thi

Shroud Removal311772M 7Shroud RemovalDisassembly1. Relieve Pressure, page 6.2. Unplug sprayer from outlet.3. Loosen bottom hopper fitting by hand and

Shroud Removal 8 311772MReassembly1. Angle left shroud half (5) into base and push down into place. Then replace right shroud half (7).2. Replace and

RotoFlex™ II Pump (RTX 900)311772M 9RotoFlex™ II Pump (RTX 900)Disassemble1. Relieve Pressure, page 6.2. Unplug sprayer from outlet.3. Remove Shroud,