Graco TI3840a important safety instructions Piston Safety Lock, Air Valve

Page 44

Repair

Piston Safety Lock

1. Follow Pressure Relief Procedure, page 18.

2. Flush Gun, page 22.

3. Disconnect air (D) and remove fluid manifold (G).

G

D

TI3837a

4. Unscrew cap (10) from stop (15), using two pair of

channel-lock pliers. Inspect spring (17), safety actuator (3), bushing (4), and o-rings (14, 18).

Air Valve

1. Follow Pressure Relief Procedure, page 18.

2. Flush Gun, page 22.

3. Disconnect air (D) and remove fluid manifold (G).

G

D

TI3837a

4. Unscrew air valve plug (2) and remove spring (26).

Using small screwdriver (54), push spool (27) out from front. Inspect o-rings (24).

14

15

18

3, 4 10

17 TI3835b

26 2

27

24

5. Lubricate o-rings (14, 18) and piston safety lock

actuator (3), and reassemble. Use Fusion Gun Lubricant, page 53. Clean threads with solvent or alcohol. Apply medium-strength Loctitep or equiv- alent to threads on stop (15) and cap (10), and reassemble.

6. Attach fluid manifold. Connect air. Return gun to

service.

TI3834a

5. Liberally lubricate o-rings and reassemble. Use

Fusion Gun Lubricant, page 53. Torque plug (2) to 125-135 in-lb (14-15 N•m).

6. Attach fluid manifold. Connect air. Return gun to

service.

44

309856U

Image 44

Contents Important Safety Instructions Plural Component, Impingement Mix Mechanical Purge Spray GunContents Manual Conventions Pressure in psi MPa, bar List of Models/Selection GuideStandard Round Pattern Guns Standard Flat Pattern Guns 247291, aDirect Impingement Round Pattern Guns Flow Rate in gpm lpmDirect Impingement Flat Pattern Guns Four-Hose Gun Personal Protective Equipment Fire and Explosion Hazard Overall View KeyPiston Safety Lock Isocyanate HazardKeep a and B Components Separate GroundingSetup ISODisengage piston safety lock, Adjust Purge Rod 1/4 TurnAdjust Flat CeramTip Follow Pressure Relief Procedure, ShutdownDaily Shutdown Shutdown for More than a DayPressure Relief Procedure Optional Configurations Optional Fluid Manifold PositionFollow Pressure Relief Procedure, page 18. Also Optional Hose PositionFluid Hoses Air HoseMaintenance Clean Outside of Gun Clean Air CapClean Muffler Clean Fluid ManifoldClean Slip-Fit Polycarballoy Mix Module Cleaning Component a ISO PortsImpingement Port Cleanout Drill Sizes XF1313 #81 Clean CeramTip External Quick Cleaning MethodCleanout Drill Sizes for Round CeramTips Round CeramTipStuck Purge Rod Clean Purge RodAdjust Purge Rod, Disassemble Front End, Adjust Front Rod SealReassemble Front End, Adjust Purge Rod, Adjust Rear Rod Seal Troubleshooting See Clean Purge Rod,Adjust Rear Rod Seal, Gun Detriggered Mechanical Purging Theory of OperationGun Triggered Fluid Spraying Cutaway View Repair Tools RequiredLubrication Replace CeramTipDisassemble Front End Reassemble Front End Adjust Purge Rod, Slip-Fit Polycarballoy Mix Module Attach fluid manifold. Return gun to service Rear Rod Seal Check Valves Piston and Purge Rod Install piston safety lock assembly until bottomed out Piston Safety Lock Air Valve309856U Parts Flush Manifold DetailPart No. Description Qty HandleSlip-Fit Polycarballoy Mix Module Kits Slip-Fit Polycarballoy Mix Module Part Numbering CodeStandard Round Pattern Guns Standard Flat Pattern GunsDirect Impingement Round Pattern Guns Direct Impingement Flat Pattern GunsCeramTip Kits Round CeramTip Part Numbering CodeFlat CeramTip Part Numbering Code Flat CeramTipsDrill Bit Kits Kit Part No Qty in Kit Drill Bit Size Illustration NominalGun Repair Kits Check Valve Filter Screen Kits 10 per kitAccessories Pour Nozzle Kit Solvent Flush Pail KitHose Adapter Kits Technical Data Category DataToll Free Graco Standard WarrantyGraco Information