Cleaning; Reassembly - Graco 308491U Instructions-Parts List Manual

Service
6. Loosen the setscrew (15). Pull the fluid housing (22)
away from the gun body (1).
1
22
7. While supporting the spring guide (16) to prevent
bending the needle, loosen the setscrews (17).
Remove the spring guide (16).
8. Remove the needle (2c). Unscrew the seal retainer
(2d). Remove the seal (2e).
2c
308491U

Cleaning

Clean all parts and cavities thoroughly with a compatible
solvent. Dry with a rag or compressed air. Replace any
parts that are worn or damage.

Reassembly

1. Lightly grease the inner cavities of the fluid housing
(22). Install the small seal (2e) so the lips face into
the fluid housing cavity. Install the seal retainer (2d)
and torque to 30--40 in-lb (3.4--4.5 N.m).
Ref.
1
15
2
3
ti04736a
16
17
2. Lightly grease the small end of the needle (2c) and
then guide it into the large end of the fluid housing
(22).
ti04734a
2d
2e
ti03974a
Action
Torque to 30-40 in-lb (3.4 - 4.5 N•m)
Lips of seal must face into housing
Grease inner cavity of housing
1
2d
2 2e
3
22
ti03975a
2c
22
ti03676a
11