Service Manual and
Axial Piston Motors Series 20
Repair Instructions
L1003443
• Rev BA • Jun 2014
27
Disassembly and Assembly
Lubricate the swash plate, slippers, pistons and
bores with clean oil. Hold the shaft on the
external end, align the missing shaft tooth with
the missing ball guide tooth using the locating
pin hole as a guide. Slide the cylinder block
assembly onto shaft and against swash plate
face.
Set the motor vertically and install the spacer in
the center before of the cylinder block.
An alternate method of installing this bearing is
to use the bearing puller bar and press the
bearing onto the shaft with the center screw of
the puller bar. A spacer must be used between
the center screw and the bearing. The bearing
must be pressed on until it rests on the shoulder
of the shaft to insure adequate bearing
clearance.
To check the shaft end play, assemble the shaft
and bearings housing, end cap and gasket (see
pages 23, 24, 19 and 18
). The shaft end play should
be from 0.08 to 0.18 mm [0.003 - 0.007 in] for
frame sizes 033 - 089 and from 0.15 to 0.3 mm
[0.006 - 0.012 in] for frame sizes 119 - 334. If
adjustment is necessary, a shim can be placed
under the bearing race in the end cap.
Changing the cylinder block kit, the swash plate and the motor shaft (assembly)
see
page 14
13
Cone bearing 30
20
Bearing puller
13 30 35
Cone bearing
Minor Repairs (continued)