Check Valves - Graco Fusion CS 312666F Manual

Check Valves

1. Follow Pressure Relief Procedure, page
17.
2. Remove fluid manifold (M). Leave air con-
nected. Clean Fluid Manifold, page 27.
M
F . 55
IG
3. Flush gun to remove residual A and B com-
ponents. See Flush Gun, page 26. Follow
Pressure Relief Procedure, page 17.
4. Disconnect air (D).
F . 56
IG
CAUTION
To prevent cross-contamination of the check
valves, do not interchange A component and
B component parts. The A component check
valve is marked with an A.
312666F
5. Use hex nut driver to remove check valves
6. Disassemble check valves using a flat head
F
IG
.
TI12095a
Damaged check valve o-rings (44e, 44f) may
result in external leakage. Replace o-rings if
they are damaged.
7. Clean and inspect all parts. Thoroughly
D
TI12086a
F
IG
(44, 45).
screwdriver.
44e
. 57
CAUTION
inspect o-rings (44e, 44f). Press on ball
(44b) to test check valve for proper move-
ment and spring action. Replace individual
check valve parts as needed.
F
45
. 58
Repair
44e
44d
44c
44b
44a
44f
TI12099a
41