Graco Inc 311052E, 288046, 288217, G40 Disassembly, Items Needed for Service

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Service

Service

Follow the Service Notes in FIG. 17 and FIG. 18 when reassembling the gun.

Gun repair kits are available. See page 34. Refer- ence numbers marked with an asterisk (*) in the service procedures are included with the 288171 Air Seal Repair Kit. Reference numbers marked with a symbol (†) in the service procedures are included with the 288136 Fluid Repair Kit.

Items Needed for Service

•1/16 in. Hex Wrench - provided

•3 mm Hex Wrench

•Adjustable Wrench

•4 mm Hex Wrench

•5/16 in. Nut Driver

•Pliers

•Lubricant part no. 111265; see Accessories, page 34, to order

•Compatible Solvent

Disassembly

1.Perform Pressure Relief Procedure, page 12.

2.Unscrew the four screws (17) and remove the gun from the manifold.

3.Unscrew the air cap retainer (8). Remove the air cap (30) and spray tip (9). See FIG. 17.

Model 288053: Unscrew the air cap (30). Remove the RAC spray tip (9) and RAC housing (11). See Parts, page 25.

4.Inspect the tip seal (9a) in place. If damaged, replace the tip seal.

5.Remove the cap (27) from the piston housing (1). Remove the springs (28 and 29).

6.Using the supplied wrench (38), loosen the fluid needle setscrew (19). Remove the needle stop (21).

7.Trigger the gun (or remove cap (27) and springs (28, 29)) to pull the needle housing off the seat while you unscrew the diffuser (10) from the gun body (1).

8.Unscrew the needle assembly (14) and use 5/16 in. nut driver to pull the assembly straight out the front of the gun.

CAUTION

Be sure to keep the needle straight when removing it from the gun. If the needle is bent, it must be replaced.

9.Remove the piston. Using a pliers, pull the piston (20) out of the piston housing (1). See FIG. 16.

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311052E

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Contents Automatic G40 Air-Assisted Spray Guns Contents Related ManualsModels G40 Standard Spray Gun, 288046, Series aG40 Plastic Seat Spray Gun, 288044, Series B G40 RAC Spray Gun, 288053, Series aEquipment Misuse Hazard Pressurized Equipment Hazard Installation Ventilate Spray BoothConfigure Gun and Manifold Circulating SystemInstall Air Fittings Ground SystemMount Gun Reciprocating Arm Rod MountStationary Support Retrofit Adapter PlateConnect Air Line Connect Fluid Line Side Mounted Manifold PortsSetup Operation Pressure Relief ProcedureAdjust Spray Pattern Apply Fluid IncorrectCorrect No air Too little air Correct amount AirMaintenance Daily Gun CareGeneral System Maintenance Flushing and CleaningTurn off the solvent supply Problem Cause Solution TroubleshootingGeneral Troubleshooting Problem Cause Solution Spray Pattern Troubleshooting Items Needed for Service ServiceDisassembly TI8173b Cutaway View Part No Gun Shown Diffuser Seat Replacement ReassemblyAA RAC Assembly included with Model 288053 only PartsParts Part Ref. No. No Description QtyDescription Qty North America and International ManifoldPart No. Description Qty Manifold with Bottom Fluid PortsSide Fluid Ports and Fan Adjustment Valve Part No C343RING, Ptfe 311052E Typical Air Application Tip Used With Consumption AAP Series Tip and Air Cap Selection ChartsAAP Series Precision Spray Tips LTX Reverse-A-Clean RAC Spray Tips LTX Series RAC Tip Selection ChartsFor use with G40 RAC Housing WRX Wide RAC Spray Tips RAC Switch TipsFFT Fine Finish RAC Spray Tips Accessories Ultimate Gun Cleaning Kit 15C161 Grounding Clamp and Wire In-line Fluid FilterAir Cap Seal Kit Plastic Seat Repair KitDimensions Mounting Hole Layout Rear Port Manifold Gun with Rear Port ManifoldTechnical Data Triggering SpeedSound Data dBa Models 3/16 in. ball Cylinder Air Pressure Fluid PressureGraco Standard Warranty Graco Information
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