Service manual

LOWR
Lower unit
6-55
63P3F11
Shimming
NOTE:
• Shimming is not required when assembling
the original lower case and inner parts.
• Shimming is required when assembling the
original inner parts and a new lower case.
• Shimming is required when replacing the
inner part(s).
Selecting the pinion shims
1. Install the special service tools onto the
drive shaft
1
.
NOTE:
• Select the shim thickness (T3) by using the
specified measurement(s) and the calcula-
tion formula.
• Install the special service tool onto the drive
shaft so that the shaft is at the center of the
hole.
• Tighten the wing nuts another 1/4 of a turn
after they contact the fixing plate
2
.
2. Install the pinion and pinion nut, and then
tighten the nut to the specified torque.
3. Measure the distance (M4) between the
special service tool and the pinion as
shown.
4. Turn the thrust bearing
5
two or three
times to seat the drive shaft housing
6
,
and then measure the housing height
(M3) as shown.
NOTE:
Measure the thrust bearing at three points to
find the height average.
5. Calculate the pinion shim thickness (T3)
as shown in the examples below.
Pinion height gauge
3
:
90890-06710
T
R
.
.
Pinion nut:
93 N·m (9.3 kgf·m, 68.6 ft·lb)
Digital caliper
4
: 90890-06704