SERVICE MANUAL | 3570 Series Plunger Pumps
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Servicing the Valves
2.12 Inspect tapered surfaces of the valves for
wear, pitting or damage.
2.10 Inspect spring retainers for cracks, excessive
wear or damage.
2.11 Inspect springs for proper tension or any
damage.
2.13 Inspect tapered surfaces of valve seats for
wear, pitting or damage.
2.09 Place flat tip screwdriver in gap and twist to
completely separate.
VALVE REMOVAL
VALVE DISASSEMBLY
2.08 Insert two (2) flat tip screwdrivers through
spring retainers just above valves. Twist to
create a small gap between valve retainers
and valve seats.
NOTICE: Valve assemblies can be disassembled
for inspection and servicing, then reassembled.
If replacing complete valve kit assemblies, skip
to Valve Installation 2.22.
NOTICE: Pitting on the valve seat or valve is an
indication of cavitation.
Review our Cavitation Troubleshooting
Support Document for assistance.
www.catpumps.com/cavitation-troubleshooting