SERVICE MANUAL | 25 Frame Plunger Pumps
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VALVE DISASSEMBLY
2.18 Remove inlet spring retainer by hand.
2.19 Inspect inlet valve spring retainer for cracks,
excessive wear or damage.
2.20 Inspect spring for proper tension or any
damage.
Servicing the Valves
2.21 Inspect tapered surface of inlet valve for wear,
pitting or damage.
2.22 Inspect tapered surface of inlet valve seat for
wear, pitting or damage.
2.23 Inspect inlet valve seat O-ring for cuts, nicks or
damage and remove.