SERVICE MANUAL | 3570 Series Plunger Pumps
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2.16 Place valve seats on a flat surface with tapered
surfaces facing up.
2.19 Place spring retainers onto valve seats.
2.14 Using a pick, remove O-rings and backup
rings from valve seats.
2.15 Inspect valve seat O-rings and backup rings
for cuts, nicks, or damage.
2.17 Place valves onto valve seats with tapered
surfaces facing down.
2.20 Using a rubber mallet, lightly tap spring
retainers into place.
2.18 Place spring onto concave sides of valves.
2.21 Replace valve seat O-rings into the top of
the groove, then backup rings at the bottom.
VALVE DISASSEMBLY
VALVE REASSEMBLY
Servicing the Valves