Graco Inc Model D, 295530, 295531, 295532, 311320G, 295533 Sleeve Removal Block

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a.Remove ball and spring assembly. Hold ball and unscrew assembly. If dirt or material build-up prevents complete removal of the spring, screw it back in. Soak assembly in gun cleaner and try to remove it again. If ball and spring assembly cannot be removed undam- aged, replace it.

b.Use check valve cleanout drill to clean inside of closure screw. Insert the flat- tened end of cleanout drill into opening at end of screw, avoiding spurs in the closure screw. Do not spin drill until the flat on the drill has cleared spurs. Spin drill with your fingers to loosen any buildup, then remove drill and flush inside of screw with gun cleaner. Next, check area where ball seats for dam- age. Also check sleeve for damage; it should fit tightly on the end of the screw. If there is damage or if the sleeve fits loosely, replace it. Replace sleeve if check valve can be threaded all the way into gun block by hand. A good check valve requires the use of a 5/16 in. nut driver to make the last 1/4 turn, com- pressing the sleeve. This compression is required to create an internal seal in the gun block.

c.Remove damaged check valve sleeve. Remove ball and spring. Insert check valve into check valve sleeve removal block (FIG. 24). While holding block, and keeping pressure on head of check valve, slice check valve sleeve with razor knife at a 10 - 15 degree angle rel- ative to the plane of removal block. Remove check valve from block and peel sleeve off. If check valve sleeve remains in gun block after removing

Repair

check valve, use extractor tool to

remove sleeve. Insert threaded end of tool into cleanout port and, while press-

ing tool into gun block, turn it clockwise

several times. Withdraw tool from gun block; sleeve should slide out with tool.

Check Valve Sleeve

Insert Check Valve

FIG. 24: Sleeve Removal Block

d.Insert spring assembly into check valve and turn the screw clockwise. When the spring is fully inserted, stem will jump over spurs in screw and make clicking sound. Ensure ball fully seats in check valve. If not, or ball is damaged, replace with new ball and spring assembly.

14.Remove retaining ring, washer, and felt wiper from retainer. Flush retainer with gun cleaner, insert new felt wiper and washer, then install retaining ring. Loosely thread felt wiper retainer into rear of mixing cham- ber (DO NOT TIGHTEN). If not installing to gun block, store assembly in plastic vial with corresponding cleanout spade.

311320G

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Contents Model D Spray Gun Important Safety InstructionsModels ContentsPersonal Protective Equipment Fire and Explosion Hazard Major Components Overall ViewCenterline Components Centerline ComponentsKeep a and B Components Separate Operation BasicsGrounding Isocyanate HazardRemove Coupling Block Manual ValvesAir Hose Connection Valving Rod Adjustment ScrewFelt Wiper Air Cap Adjustment ValveAdjust Felt Wiper Clean Felt WiperValving Rod Closed Position Initial Set UpDaily Shutdown Daily Start-UpPressure Relief Procedure Point of Valving Spray Pattern AdjustmentTern opens as adjustment is made FIG Distance of Gun Chamber Minimum Maximum From Surface Valving Rod Adjustment for Standard Mixing ChambersTurns Out From Point Recommended Gun Service Kits MaintenanceClean Spray Gun Procedure Repair Filter Screen Removal and ServiceCheck Valves Clean Injection SlotsNot Remove Valving Rod AdjustmentMixing Chamber Removal Centerline Component RemovalSleeve Removal Block Chamber Seating Centerline Component InstallationRepair Parts Model D Spray Gun AssemblyNo. Part No. Description Model D Spray Gun AssemblyAC chamber Standard Mixing Chambers Part Number Air Cylinder AssemblyModel Coupling Block Assembly311320G Category Data Technical DataGraco Information Graco Standard Warranty