Repair
16
3A8693B
Repair
Check Valve Repair
Tools Required:
•
Torque wrench
•
10 mm socket wrench
•
15 mm socket wrench
See Kits and Accessories, page 28, for available
repair kits. Service the check valves as follows.
See F
IG
. 6.
Disassemble Check Valves
1.
Perform the Pressure Relief Procedure, page 12.
2.
Disconnect all air and fluid lines from the equipment.
3.
Remove screws (120) 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 all check valve components and gaskets
(121).
NOTE: Pay attention to the orientation of the check
valve components for reassembly.
5.
Clean and inspect all parts 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.
Reassemble Check Valves
1.
Install all check valve components in the correct
orientation. See F
IG
. 6.
NOTE: Ensure that the check valves and seating
areas are clean.
NOTE: Install the flapper valves with the solid
rubber side facing toward the seat.
2.
Install gaskets (121).
NOTE: Grease both surfaces of the gasket (121)
before reassembling manifolds (102, 103).
3.
Align manifolds (102, 103) with fluid covers (101).
4.
Insert screws (120) and torque. See Torque
Sequence, page 29.
5.
Reconnect air and fluid lines to equipment.
