Service Manual and
Axial Piston Motors Series 20
Repair Instructions
L1003443
• Rev BA • Jun 2014
23
Remove all but two (2) of the hex. screws holding
the end cap to the housing.
There is an internal spring loading on the end
cap and as the last two (2) screws are loosened, it
should begin to separate from the housing.
Loosen these screws alternately until the end cap
has fully separated from the housing, then
remove the screws entirely.
The end cap can now be lifted off the motor;
however, be certain that the valve plate does not
fall and become damaged. If the valve plate
tends to lift off with the end cap, hold it in place
on the end cap and remove both parts together.
If the valve plate remains on the bearing plate,
remove it at this time.
All surfaces must be treated with the greatest
care. Any damage to the surfaces must be
avoided at all costs.
Disassembly and Assembly
Changing the valve and bearing plate (disassembly)
C
Caution!
Major repairs may affect the unit warranty, therefore equipment manufacturer should be consulted
prior to undertaking such repairs.
The end cap crews should not be loosened until the shaft seal has been removed (see
page 17
).
Remove the valve manifold assembly as outlined under minor repair procedures (see
page 19
).
10
8, 9
7, 9
15 10 16 32
16
Remove the bronze bearing plate and pilot ring from the cylinder block. If the pilot ring remains with
the bearing plate, remove it at this time.
Minor Repairs (continued)