10
Model 70160
28 With the retaining ring
removed, use a small press to
press the shaft seal and input shaft
assembly from the housing
assembly.
29 With the input shaft assembly
removed, disassemble the
assembly for inspection by
removing the shaft seal, washer,
retaining ring thrust washers and
bearing (see Figure 26).
Note: The rear pump on tandem
units uses a spacer in place of
shaft seals.
30 To remove the swashplate
from the housing assembly, use a
9/16 in. socket or end wrench and
remove the three cap screws
retaining the control arm cover plate assembly. Start at the
cover plate with control arm. (see Figure 27).
31 With the retaining cap screws removed, insert two small
screwdrivers in the notches located
in the cover plate assembly and pry
upward. Make sure bearing cup
comes off with the cover plate (see
Figure 28).
Note: The crush ring in the control
arm trunnion cover does not need
to be removed (see Figure 29). The
only time the crush ring needs to
be removed is when either the
trunnion cover, the swashplate
assembly or the housing assembly
is replaced. A shim kit is then
required in the crush rings place.
32 Reposition the pump assembly
to remove opposite cover plate.
The bearing cup in this cover plate
is press fit and not removable.
Repeat steps 30 through 31.
33 To remove swashplate, first
use a small press and press the
drive shaft needle bearing out of
the housing.
34 With housing in the upright position rotate the swashplate
upside down, slide the swashplate toward the control side and
lift it from the pump housing (see Figure 30).
Note: The swashplate control shaft will fit out either side of the
pump housing. Be sure to note on which side of the housing
the control shaft protrudes before removing swashplate from
housing for correct reassembly orientation.
35 Use an o-ring pick or similar tool to remove the o-ring
seals from the two counter-bores
in the housing or the cover plates
(see Figure 31).
36 To remove the control side
cover plate lip seal, use a small
press and press the lip seal inward
(see Figure 32).
37 Remove the thrust plate from
the swashplate. The thrust plate is
reversible and either side may face
the swashplate (see Figure 33).
38 When the needle bearing is
replaced, the numbered end of the
needle bearing must face away
from the housing and pressed to
the dimension as shown (see
Figure 35).
Figure 26
Figure 27
Repair Information
- Disassembly
Figure 32
Figure 34
1.78 mm
[.07 in.]
Numbered End
Flange End of Housing
Figure 35
Figure 25
Figure 28
Figure 29
Figure 30
Figure 33
Figure 31