CAT Pumps 67102, Service Manual

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2
Servicing the Valves
DISASSEMBLY
NOTE: Two (2) valve kits are required to repair the pump (see data sheet PN 99DAT023).
NOTE: Discharge and inlet valve assemblies are identical (use procedure below for disassembly and reassembly of discharge and inlet valves).
1.0 Use a M14 socket wrench to remove the
eight (8) M16 x 30 Hex Socket Head (HSH)
screws from the valve plate.
1.1 Remove valve plate. 1.2 Insert two (2) flat tip screw drivers into
grooves on opposite sides of valve plug
and pry upward to remove valve plug
with o-ring.
1.4 Remove spring washer. 1.3 Remove coil spring.
1.6 To separate spring retainer from valve seat, insert a flat tip screw driver between spring
retainer and top of valve and pry upward until there is small gap.
1.7 If spring retainer separates from valve seat, remove spring and valve. Use a reverse pliers to
remove valve seat.
1.8 Complete valve assembly.
NOTE: Examine valve seats, valves and springs for grooves, pitting or wear and replace with a new valve kit as needed.
NOTE: Examine o-rings for cuts or wear and replace with a new valve kit as needed.
1.5 Use one of the discharge manifold HSH
screws (M16 x 120) and hand thread into
threaded hole of spring retainer. Grasp
M16 screw and pull upward to remove
complete valve assembly.