IV-22
HYDRAULIC UNITS
HST PUMP
16. Install the side cover.
a. Push down the swash plate to mate with the
bearing of the side cover (9).
b. Install the gasket (55) and the side cover (9).
• Install the two bolts (that are longer than
the Allen screws for securing the side cov-
er) temporarily as the positioning guides.
c. Mate the side cover (9) with the housing in
-
stallation hole.
• Tap the side cover lightly with a rubber
hammer.
d. Remove the two bolts used as the positioning
guide, and install the six cap screws.
• Tighten the cap screws, starting from the
one at the lower-left corner counterclock-
wise.
• Make sure the swash plate does not in
-
terfere with the side cover and the needle
bearing.
Cap Screw: 15~17.5 N·m
17. Install the shaft assembly to the housing.
• Make sure the cylinder block·s hold-down
pin is installed at right angles in the gutter.
18. Install the cover to the shaft spline to protect the
seal carrier.
• Use a plastic sleeve or its equivalent.
19. Assemble the seal carrier.
a. Press-fit the seal (56) into the seal carrier (7).
• Use a new seal.
• Apply sealant over the seal perimeter.
Sealant: Loctite #59231
• Be careful not to insert the seal in the
wrong direction.
• Lubricate the inside of the seal with
grease.
b. Attach the O-ring (8) to the seal carrier (7).
S3F309E
Push
Rubber mallet
55
9
B
B
S3F308E
Shaft assembly
S3F329E
Protect cover
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