Items Needed for Service

Service

DGun Tool – provided

DPacking Installation Tool – provided

DAdjustable Wrench

DScrew Driver

DLubricant part no. 111265; see Accessories, page 28, to order

DCompatible Solvent

Fluid Packings Replacement

WARNING

PRESSURIZED EQUIPMENT HAZARD

To reduce the risk of a serious injury, follow the Pressure Relief Procedure on page 12 before checking or repairing any part of the gun or sys- tem.

NOTE:

DOrder Fluid Packing Kit 239640. The kit includes the spreader, u-cup, and spacer.

DClean parts with a solvent that is compatible with the parts and the fluid being sprayed.

DLightly lubricate the parts indicated in Fig. 28 with lubricant 111265.

1.Relieve the pressure.

2.Remove the air cap retaining ring (15) and air cap

(14).See Fig. 26.

3.Trigger the gun while you remove the fluid nozzle

(12)with the gun tool (28).

CAUTION

Trigger the gun whenever you tighten or remove the nozzle. This keeps the needle seat away from the nozzle seating surface and prevents the seat from being scratched.

14, 15

7028A

Fig. 26

4.Remove the fluid adjustment knob (21) and fluid spring (23). See Fig. 28.

5.Pull the fluid needle (13) out the back of the gun.

6.Remove the screw (11), pin (17), and trigger (10).

7.Remove the hex nut (9) with the gun tool (28).

8.Remove the spray housing (2a) and insert (4).

9.Unscrew the packing screw (8) from the insert (4) with the gun tool (28).

10.Use the back end of the fluid needle (13) to push the three fluid packings (5) out of the insert (4). Be careful not to damage the needle or insert. Discard the old fluid packings.

11.Check the fluid needle (13) for damage or exces- sive wear. Replace needle tip or entire needle if necessary.

18 308741