Repair; Repair The Check Valve - Graco SaniForce BV Series Instructions Manual

Repair

Repair
Repair kits available (purchase separately). Use all parts in the kits for best results. See Parts, starting on page 28.

Repair the Check Valve

Tools Required:
• Torque wrench
• O-ring pick
• For 1050 Pumps: 10 mm socket wrench
• For 1590 and 2150 Pumps: 13 mm socket wrench
Repair kits are available (purchase separately). Use all
parts in the kit for best results. See Kits and
Accessories, starting on page 34.
Service the check valves as follows.
See F . 6.
IG
Remove the Check Valves
To avoid severe burns, do not touch hot fluid or hot
equipment.
1. Perform the Pressure Relief Procedure, page 12.
2. Disconnect all air and fluid lines from the
equipment.
3. Remove fasteners (106) from manifolds (102, 103).
Remove manifolds from fluid covers (101).
NOTE: Use care while removing manifolds to avoid
damage to check valve components.
4. Remove balls (301), seats (201), and o-rings (202).
5. Clean and inspect for wear or damage. Replace as
needed.
NOTE: To ensure proper seating, always replace all
seat and check valve components when performing
check valve repairs.
Install the Check Valves
1. Install the o-rings (202), seats (201), and balls (301).
See F . 6.
IG
18
NOTE: Ensure that the check valves and seating
areas are clean.
2. Align manifolds (102, 103) with fluid covers (101).
3. Insert fasteners (106) and torque. See Torque
Fasteners, page 36.
4. Reconnect air and fluid lines to equipment.
106
1
301
201
202
113
Apply medium-strength (blue) thread locker to the
1 threads and torque. See Torque Fasteners, page
36.
F . 6: Check Valve Section
IG
103
101
102
3A8983A