3-54 Troubleshooting, Testing, and Maintenance
Outlet check valve assembly
To reassemble outlet check valves:
1. Position the housing so that you can look down into the pump head.
2. Insert the housing seal into the pump head.
3. Place the seat assembly into the pump head. Face the shiny side
upward.
Caution: To protect the parts from contamination, use forceps or
tweezers to handle the parts after cleaning them and when
reassembling the outlet check valve.
OUTLET CHECK
VALVE HOUSING
SEAL GUIDE
RETAINER CUP
SLEEVE
BALL
SEAT
SEAL HOUSING
Pump head
Seal housing
Seat
Ball
Sleeve
Retainer clip
Seal guide
Outlet check valve housing
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