22
DKMH.PS.315.B1.02 520L0535
Series 20 – Axial Piston Pumps
Service Manual and Repair Instructions
Disassembly and Assembly
MINOR REPAIRS
(continued)
To inspect or replace the charge relief
valve, use a “1“ wrench to remove the
hex plug and the spring and valve cone.
Remove the shims from the counter bore
of the plug. Do not alter these shims
unless new parts are used, in which case
adjusting the valve setting, by shimming,
is necessary. To install, insert valve cone,
spring, shims and plug. Be certain shims
are in place in plug. Torque to 22 - 24 Nm
[195 - 212 lbf•in].
The removal of the charge check valves
requires the use of a draglink socket.
These check valves are cartridges which
are threaded into the end cap.
The charge check valves are interchange-
able with each other. It is suggested that
they be replaced in pairs. Use caution
when installing these valves to prevent
damage to the O-ring on the cartridge as
it is inserted past the threads in the end
cap.
After assembly, be certain the check
valves are below the surface of the end
cap. Torque check valves as specied at
the end of this manual.
3 1+2
F000 064
Series 20 Axial Piston Pumps_SR.indd 24.4.2002, 14:0322-23
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