18
Model 70360
Reassembly
1
Before reassembling the pump, replace all worn and
damaged parts, assemblies, seals and o-rings. Lubricate the
seals and o-rings with petroleum jelly to help retain them
during reassembly and to provide lubrication to the input and
control shaft seals. Lubricate all finished part surfaces freely
with clean hydraulic fluid to help
provide start up lubrication
between all rotating parts.
2
To reassemble the camplate
into the pump housing, tilt the
camplate slightly and install the
control side of the camplate
through the previously noted or
marked side of the housing
assembly. (See Figure 36)
3
With the camplate installed,
lubricate and install the tapered
bearing on the non-control arm
side of the camplate. (See Figure
37)
4
Lubricate and install the o-ring
seal on trunnion cover. (See Figure
38)
5
Install the trunnion cover over
bearing and on pump housing.
Install the three cap screws and
torque to 40,7 Nm [30 ft. lbs.].
(See Figure 39)
6
Shims are used to adjust the
camplate’s tapered bearings
preload. The shims used may be
thick, thin or both. When
repairing, start with the same
thickness of shims as those
removed then add or delete to
obtain the proper bearing
preload. (See Figure40)
7
Install the shims on the control
arm side of the camplate. (See
Figure 41)
8
With the shims installed,
lubricate and install the tapered
bearing on the control arm side of
the camplate. (See Figure 42)
9
Lubricate and install the
control arm shaft seal into the
control arm trunnion cover. Install
with the lip of the seal facing
upward or to the inside of the
pump. (See Figure 43)
10 Lubricate and install the o-ring
seal on the control arm trunnion
cover. (See Figure 44)
11 Install the trunnion cover over
the control shaft and into the pump
housing. Install the three retaining
cap screws and torque to 40,7 Nm
[30 ft. lbs.]. (See Figure 45)
12 Using your fingers, tilt the
camplate back and forth to check
the trunnion bearing preload.
Proper preload is achieved when
the camplate has a very slight
tilting resistance. The camplate
must not have any or very little side
clearance.
13 Reassemble the input shaft
assembly by installing the thrust
washer, thrust bearing, second
thrust washer, retaining ring,
washer and shaft seal. (See
Figure46)
Note: The lip of the shaft seal must
point toward the center of the input
shaft.
14 Install the input shaft assembly
into the housing assembly. Push
the shaft seal in just far enough so
you can start the shaft seal
retaining ring.
15 Use a pair of snap ring pliers
to install retaining snap ring into
the housing assembly. (See Figure
47)
16 Use a seal driver or similar tool
to press or drive the snap ring and
seal into the housing assembly.
(See Figure 48)
CAUTION! Press or drive inward until the snap ring snaps into
the snap ring groove located in the pump housing assembly.
Figure 36
Figure 37
Figure 38
Figure 39
Figure 40
Figure 41
Figure 42
Figure 43
Figure 44
Figure 45
Figure 46
Figure 47
Figure 48
Repair Information
