4-22 SHAFT DRIVE AND DIFFERENTIAL
BACKLASH
Measure
the
backlash
of the
differential gear using
the
dial
gauge,
as
shown. Take backlash readings
at
several places
while
turning the flange slightly
in
each direction
and
securely
holding the differential driven gear.
Read
the
total
backlash
on
the
dial gauge.
If
the backlash
is not
within specification,
the
shim thickness
must
be
changed
and the
backlash checked
until
it is
within
specification.
Refer
to the chart at the right for the appropriate
shim thickness.
WM
Differential
bevel gear backlash
Standard: 0.01 - 0.05 mm
(0.0004
-
0.0020
in)
Without
bearing
case
specification
0.07 - 0.15 mm
(0.0028
-
0.0059
in)
Bearing
case
assembled specification
NOTE:
Adjust the backlash by referring to the chart at the
right
and
using
the thickness of the old shims as a guide.
Backlash
Shim thickness
Under
0.01
mm
(0.0004
in)
Increase
0.01-0.05
mm
(0.0004-0.0020
in)
Correct
Over
0.05 mm
(0.0020
in)
Decrease
List
of shims ® available for the
dif-
ferential
driven bevel gear. (CIT
3
4-28)
Part No.
Shim thickness (mm)
27326-19B00-035
0.35
27326-19B00-040
0.40
27326-19B00-050
0.50
27326-19B00-060
0.60
DIFFERENTIAL
GEAR BEARING
CASE
SHIM
CLEARANCE
Measure
the clearance between the driven gear and bearing
in
the
following steps.
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