NOTE
Shims
(39, Figure 3) behind the outer bear-
ing race in the mounting flange determine
bearingpreloadforthe input shaft bearings.
Save the shims and reinstall them ifreusing
the originalparts.
3. Inspect the input shaft bearing
outer
races in the trans-
CD
mission case and mounting flange.
If
either race is dam-
aged
or excessively worn, remove it using a suitable
puller.
220
Input
shaft
1.
Check
the
gear
teeth for excessive wear, corrosion or
rust and mechanical damage.
Check
the teeth for galling,
chips, cracks, missing pieces, distortion or discoloration
from overheating. Replace the input shaft
if
the gears are
damaged.
2. Inspect the input shaft bearings and seal surfaces for
excessive wear, grooves, metal transfer and discoloration
from overheating. Use a press to remove
damaged
bear-
ings and to install
new
bearings.
Intermediate
shaft
1.
Remove
and discard the O-ring (46,
Figure
3) at the
end
of
the shaft.
2.
Remove
the thrust
washer
(47,
Figure
3), idle gear
(45) and roller bearings (44).
3. Inspectthe bearings, shaft and reverse idler
gear
inside
diameter for excessive wear, grooves, metal transfer and
discoloration from overheating.
If
necessary, replace the
shaft,
gear
and bearings.
4.
Check
the idler
gear
teeth for excessive wear, corro-
sion or rust and mechanical damage.
Check
the teeth for
galling, chips, cracks, missing pieces, distortion or discol-
oration from overheating.
If
necessary, replace the gear.
5. Reassemble the intermediate shaft. Install a
new
O-ring on the shaft.
Check
that the idler rotates freely on
the shaft.
Output
shaft
NOTE
Exercise care when using the puller in Step
1. Make sure the threads on the outputshaft
are not damaged.
1. Using a suitable puller, remove the output shaft from
the forward and reverse gear assemblies as shown in
Fig-
ure
4. Do not mix the forward
gear
parts and reverse
gear
parts.
CHAPTER ELEVEN
2.
Remove
the spacer (9,
Figure
3) and the bearing inner
race (7) from the output shaft.
3.
Hold
the threaded
end
of
the output shaft so the threads
are protected.
4.
Place
the outer race onto the front bearing inner race.
Using a suitable bearing driver, gently drive the inner
bearing race
away
from the shaft collar approximately 10
mm.
5. Place a pulling support plate (such as Yanmar special
tool 17099-09030)
between
the collar
of
the output shaft
and bearing.
6.
Use
Yanmar special tool 17095-09070, or a suitable
equivalenttool, to press the bearing
off
the shaft, as shown
in
Figure
5.
7.
Remove
the clutch friction plates (14,
Figure
3) and
steel plates (15) from the forward gear (10).
8. Use Yanmar special tool 17095-09070, or an equiva-
lent tool, to compress the Belleville springs (11,
Figure
3)
and remove the snap ring from the forward gear, as shown
in
Figure
6.
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