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Repair
Check Valve
Valve Repair
Repair
Check
Check
Valve
Repair
Manifold tubing may become hot during operation.
Prior to removal, ensure that tubing has cooled
enough to handle safely.
1. Follow the
Pressure Relief Procedure, page 7
Remove power from the motor. Disconnect all
hoses.
2. Remove manifold tubing (14).
3. Remove outlet fitting from the diaphragm cover.
Inspect the o-ring on the fitting for damage.
Replace if needed.
8
4. Use a screwdriver to remove the outlet check
valve screw.
.
5. Inspect the valve screw for damage. Replace if
needed. Clean the outlet valve area and install
the new check valve.
6. To repair the inlet check valve, the diaphragm
cover must be removed. Use a 13 mm socket
wrench to remove the 12 diaphragm cover
screws and the diaphragm cover.
7. Use a screwdriver to remove the inlet check
valve screw.
8. Inspect the valve screw for damage. Replace if
needed. Cleand the inlet valve area and install
the new check valve.
9. Install the diaphragm cover and loosely install
the 12 screws (9).
10. Torque the diaphragm cover screws as described
in
Torque Instructions, page 15
11. Repeat steps 2-10 for other side of the pump.
12. Restore all manifold tubing.
3A7034A
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