Installation Instructions

3 TRANSMISSION
B1700·B2100·B2400 WSM,11770
Propeller Shaft and Connecting Pipe
1. Remove the connecting pipe (1) and propeller shaft (2) with
ball coupling.
(When reassembling)
• Apply grease to the splines of the front wheel drive shaft,
universal
joint and ball coupling.
Separating Center Frame
1. Place the jacks under the transmission case and center frame.
2. Remove the center frame mounting screws and nuts, and
separate the center
from transmission case.
(When reassembling)
• Apply grease
to the splines of HST pump shaft, 2nd gear
shaft and ball coupling.
• Reinstall
the connecting pipe and two O-rings securely.
B177P094
(1) Connecting
~ipe (2) Propeller Shaft
B177F326
I Clearance:" A"
(1) Trunnion Control
Lever Assembly
(2) Setting Screw
(3) Trunnion Control
Lever
Mounting
Bolt
Lessthan 1 mm
0.039 in.
(4) Hydrostatic
Transmission
(5) Universal Joint
(6) Neutral Spring
Bracket
Separating Hydrostatic Transmission
1. Tap out the spring pins and remove the universal joint (5)
with front wheel propeller shaft.
2. Remove the neutral adjuster setting screw (2) and loosen the
trunnion control lever mounting bolt and nut (3). Then
remove the
trunnion control lever assembly (1).
3. Remove the hydrostatic transmission mounting screws and
nuts, and separate
the hydrostatic transmission (4) from the
transmission case.
(When reassembling)
• When assembling the neutral spring bracket (3), adjust
the
clearance" A" between nut and bracket shown in the figure.
• Apply liquid gasket (Three Bond 1208D
or equivalent) to
joint face ofthe HST and transmission case.
• When inserting the spring pins, face their splits in the
direction parallel to the universal joint as shown in the figure
below.
Trunnion control lever
23.5
to 27.4 N'm
mounting bolt and nut
2.4 to 2.8 kgf'm
17.4 to 20.2 ft-Ibs
Tightening
torque
HST mounting screw
39.2to44.1 N'm
and
nut
4.0 to 4.5 kgf'm
.,
28.9 to 32.5 ft-Ibs
[A]
Front
[B]
Rear
I
"A"~~
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(
----..
JI
8"
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B177F325
3-S22