See figure 6
. Install new gasket (3) over the dowel pin in the mounting flange. Do not
use gasket compound.
Insert two socket hd. cap screws (6) through holes in balance stem (7). Attach balance
stem to stroking control assembly. Torque to 70 lbs-in., 6,6 Nm.
Install the housing assembly (4) over the barrel and auxiliary shaft assembly. Carefully
guide the override tubes and pressure feed tubes items 2 and 4, figure 3 through the
housing assembly. Position the pressure feed tubes in the slots in the housing f ace.
NOTE:
Lightly force the pressure feed tubes downward toward the stroking assembly
do not bend or crimp the tubes enough so that the y must be pulled up a little to snap
into the housing slots. This will hold them in position for assembling the port block to
the housing.
Insert two hex. hd. cap screws (5) through mounting flange and into housing. Torque to
100 lbs-ft., 135,6 Nm. These must be fully torqued later when main bolts are in place .
Install face plate pins (1) in the holes pro vided in the barrel face.
Apply clean heavy grease to the surface of the barrel and install the f ace plate (2) over
the face plate pins. The surfaces must be absolutely free of scratches, dust or dirt to
prevent excessive leakage. Lubricate pistons with clean system fluid through the holes
in the face plate.
CAUTION:
The face plate has a black break-in coating on top of bronz e which is bond-
ed to a steel backing. Lightly sand the edge of the plate to identify the bronz e coated
side. The bronze side should go toward the port plate.
PARTS LIST FOR FIGURE 6
item
description
part no.
quantity
1
face plate pins
033-59747
3
2
barrel face plate P24
033-71748
1
barrel face plate P30
033-57571
3
housing gasket
033-91082
1
4
housing assembly
see fig. 5
1
5
hex. hd. screws
306-40009
2
6
soc. hd. cap screws
358-10120
2
7
balance stem
033-71774
1
CAUTION:
When installing a new mechanical shaft seal, exercise care to insure that
all of the parts fit together properly. This is particularly important if the seal was once
assembled and disassembled for some reason. If the rubber boot, item 4, grips the
shaft and does not slide on the shaft, as it is disassemb led, then the spring, item 7,
can disengage the shell, item 5, from the band, item 6, so that the y do not re-engage
properly when reassembled. Be sure the shell and the band are proper ly engaged
before reassembling the seal, and stays engaged during assembly.
NOTE:
Re-using shaft seal is not recommended pr actice.
NOTE:
Lubricate seal and shaft with clean hydraulic fluid of the same type that will be
used in the system.
ASSEMBLY PROCEDURE
HOUSING, END CAP, CAM AND
BARREL ASSEMBLY
MECHANICAL SHAFT SEAL
ASSEMBLY PROCEDURE
21
FIGURE 6
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