Check Valve Repair - Graco Wolverine A261 Series Instructions-Parts List Manual

Repair

Check Valve Repair

The following procedures apply to the check valves on
Wolverine Advanced and Wolverine Hazardous Loca-
tion pumps. F . 27 shows the placement of the check
IG
valves on a Wolverine Advanced pump.
216c
216d
216b
216a
216
212
211
215c
215b
215a
215
F . 27 Check Valve Repair
IG
36
210
Inlet Check Valve
Follow the Pressure Relief Procedure on page 23.
1.
2. Remove the inlet check valve assembly (215).
3. Remove the retaining nut (215c) and piston (215b).
4. Remove the piston o-ring (215a) from the piston (215b).
5. Inspect parts for wear, and replace as needed.
6. Install the piston o-ring (215a).
7. Reassemble the piston (215b) and retaining nut (215c).
Torque the retaining nut to 30-35 in-lbs.
8. Reconnect the inlet check valve assembly (215). Apply
sealant to the exterior threads of the valve assembly.
9. Reconnect and tighten fluid lines.
10. Prime the Pump, page 23.
11. If necessary, Calibrate Chemical Dosage, page 24.
Outlet Check Valve
1. Follow the Pressure Relief Procedure on page 23.
2. Remove the outlet check valve assembly (216).
3. Remove the retaining nut (216c), spring (216d), and pis-
ton (216b).
4. Remove the piston o-ring (216a) from the piston (216b).
5. Inspect parts for wear, and replace as needed.
6. Install the piston o-ring (216a).
7. Reassemble the piston (216b), spring (216d), and retain-
ing nut (216c). Torque the retaining nut to 30-35 in-lbs.
8. Reconnect the outlet check valve assembly (216). Apply
sealant to the exterior threads of the valve assembly.
9. Reconnect and tighten fluid lines.
10. Prime the Pump, page 23.
11. If necessary, Calibrate Chemical Dosage, page 24.
334513N