Repair; Check Valve Repair - Graco Aluminum Husky 2150 LP Instructions Manual

Repair

Repair
Repair kits available to purchase separately. Use all parts in the kits for best results. See Parts, starting on page 25.

Check Valve Repair

Tools Required:
• Torque wrench
• 4 mm hex key
• 15 mm socket wrench
See Kits and Accessories, page 28, for available
repair kits. Service the check valves as follows.
See F . 6.
IG
Disassemble Check Valves
1. Perform the Pressure Relief Procedure, page 12.
2. Disconnect all air and fluid lines from the
equipment.
3. Remove clevis and cotter pins (126, 127) from
manifolds (102, 103).
4. Remove bolts (120).
5. Remove manifolds from fluid covers (101).
NOTE: Use care while removing manifolds to avoid
damage to check valve components.
6. Remove all check valve components and gaskets
(121).
NOTE: Pay attention to the orientation of the check
valve components for reassembly.
7. Clean and inspect all parts for wear or damage.
Replace as needed.
16
NOTE: To ensure proper seating, always replace all
gaskets, seats, and check valve components when
performing check valve repairs.
Reassemble Check Valves
1. Install all check valve components in the correct
orientation. See F . 6.
IG
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) onto the outer diameter of the
center manifolds (113).
NOTE: Before reassembling manifolds, grease both
surfaces of the gasket (121) and the mating inner
diameter of the manifolds (102, 103).
NOTE: Always replace the manifold gaskets (121)
when repairing the equipment.
3. Align manifolds (102, 103) with the fluid covers
(101) and center manifold (113).
4. Simultaneously connect the manifolds (102, 103) to
the joints at the fluid cover (101) and center
manifold (113).
NOTE: For proper installation, ensure that the
manifold joints are connected at the same time.
5. Insert screws (120) and torque. See Torque
Sequence, page 29.
6. Reconnect air and fluid lines to equipment.
3A8693C