19
Service
Replacing the air and fluid packings
with gun rebuild kit 16230
Tools Needed:
Wrench 5/16 in. (8 mm)
Wrench 3/4 in. (19 mm)
Gun Tool (28) supplied with gun
Packing Installation Tool (29)
supplied with gun
Mechanics O–ring pick
Needle nose plier
Gun Lube Part No. 16232
WARNING
PRESSURIZED EQUIPMENT HAZARD
To reduce the risk of a serious injury, follow the
Pressure Relief Procedure
on page 11 whenever
you are instructed to relieve pressure.
NOTE:
Gun Repair Kit 16230 comes complete with all air
and fluid seals required to rebuild the spray gun.
Clean parts with a solvent that is compatible with
the parts and the fluid being sprayed.
Lightly lubricate the parts indicated in Fig. 21 with
lubricant 16232. This item is not included with gun.
Disassembling the gun
1.
Relieve the pressure.
2.
Flush the spray gun, page 6.
3.
Remove the air cap retaining ring (15) and air cap
(14). Remove and replace the seal (15B). The
U–cup lips must face towards the air cap. See Fig.
22.
Fig. 22
12
15B
28
TI3616C
14, 15
4.
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.
5.
Remove the fluid adjustment knob (21) and fluid
spring (23). See Fig. 21, page 18.
6.
Pull the fluid needle (13) out the back of the gun.
7.
Remove the screw (11), pin (17), wave washer
(18), and trigger (10).
8.
Remove the hex nut (9) with the gun tool (28).
9.
Remove the spray housing (2a) and adapter (4).
