Graco Wolverine Series, Instructions-Parts List Manual

Page: 39 / 52

Repair
334513A 39
12. Reconnect the inlet hose to the pump and reprime
the pump.
Outlet Check Valve
1. Follow the Pressure Relief Procedure on page 23.
2. Remove the outlet check valve assembly (25).
3. Remove the retaining nut (25d), spring (25e), and
piston (25c).
4. Remove the piston o-ring (25b) from the piston
(25c).
5. Inspect parts for wear, and replace as needed.
6. Install the piston o-ring (25b).
7. Reassemble the piston (25c), spring (25e), and
retaining nut (25d).
8. Reconnect the outlet check valve assembly (25).
9. Reconnect and tighten fluid lines.
10. Prime the Pump , page 23.
11. If necessary, Calibrate Chemical Dosage ,
page 24.
F
IG
. 27 Check Valve Repair
25d
25c
25b
25a
24d
24c
24b
24a
20
25e