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Repair
3A0149C 21
7. Reinstall the seat gasket (5b, carbide models only),
seat (5c), and seat nut (5d). Torque to 45-50 in-lb.
Be sure not to overtighten the nut.
NOTE:
• When reinstalling the carbide seat (5c), the tapered
end of the seat (red side) must point toward the gun
tip.
• The plastic seat (5c, model 24C854 guns), can be
reinstalled in either direction. To avoid fluid leakage,
do not reverse the direction of the plastic seat (5c) if
it is worn. The seat must be replaced if it is worn.
Needle Repair
1. Remove the diffuser, see Seat Repair, page 20.
2. Remove the trigger pivot pin nut (14‡), pivot pin
(13‡), and trigger (3‡) using the gun tool (30) and
nut driver (29). See F
IG. 37.
3. Remove the fluid needle assembly (2) from the front
of the gun by using the nut driver tool (29). If the
needle is bent or damaged, or the packing is worn
or leaking, replace the entire needle assembly. If
replacement is necessary, be sure to remove the
o-ring (2a*) as it may stick inside the gun body. See
F
IG. 38.
F
IG. 36
TI6572A
5a
1
30
5c
5g*
5f*
5e*
5d
5b
(carbide only)
F
IG. 37
F
IG. 38
TI6574A
14‡
13‡
3‡
TI6575A
2
29
1
2a*