Reassembly - Graco XHF Instructions And Parts

Service
5. Loosen the setscrew (15) then remove the fluid
housing (22) from the gun body (1). See F
1
22
15
F . 8
IG
6. While supporting the spring guide (16) to prevent
bending the needle (2c), loosen the setscrews (17)
then remove the spring guide (16). See F
F . 9
IG
7. Remove the needle (2c). Unscrew the seal
retainer (2d) then remove the seal (2e). See F
2c
F . 10
IG
10
IG
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. 9.
IG
16
2c
17
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2e
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8. Clean all parts and cavities thoroughly with a com-
. 8. patible flushing fluid. Dry with a rag or compressed
air. Replace any parts that are worn or damaged.

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).
See F . 11.
IG
F . 11
IG
2. Lightly grease the small end of the needle (2c) then
guide it into the large end of the fluid housing (22).
See F . 12.
IG
. 10.
IG
F . 12
IG
2d
2d
2e
22
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2c
22
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