10-22 LT-A500FK1 ('01-MODEL)
TOOTH CONTACT
After
backlash adjustment
is
carried out, the tooth contact must
be checked. Pay attention to the follwing procedures:
•
Remove
the final driven bevel gear.
•
Clean
and degrease several teeth on the
final
driven bevel gear
and apply
a
coating
of
machinist's layout dye or paste to teeth.
•
Install the final driven bevel gear
with
the shims in place, posi-
tioning
the coated teeth
so
that they are centered
on
the final
drive
bevel gear.
•
Install the final driven gear bearing case, and then tighten the
bolts
to the specified torque.
H Driven gear bearing
case
bolt:
23 N m (2.3 kgf-m, 16.5
Ib-ft)
NOTE:
At this time, it is not
necessary
to install the
O-ring.
•
Rotate the final drive bevel gear several turns
in
each direc-
tion,
while placing
a
load
on
the final driven bevel gear. This
will
provide
a
contact pattern
on
the coated teeth
of
the final
dirve
bevel gear.
•
Remove
the final drive bevel gear and compare the coated
teeth
to the examples shown in
©,
(2) and
(3).
• If
the tooth contact
is
found to
be
correct (example (2)),
go to
the
Final Assembly sub-section
on p. 32
to complete installa-
tion.
©
Incorrect (contact at tooth top)
(2) Correct
(3)
Incorrect (contact at tooth root)
• If
tooth contact is found to
be
incorrect (examples
®
and
(3)),
the
shim thickness between the final drive gear bearing
and
final
gear case must
be
changed
and
the tooth contact
re-
checked
until
it is correct.
Tooth contact
Shim thickness
Contact at tooth top
©
Decrease
shims
©
Contact at tooth root (3)
Increase shims
©
A
CAUTION
Make
sure to check the backlash and clearance
after
the
tooth
contact has been adjusted, since it may have
changed.
Adjust the
tooth
contact and backlash
until
they are
both
within
specification. If the correct
tooth
contact cannot be maintained when adjusting the back-
lash,
replace the final drive and driven bevel gears.
List
of shims © (Rear drive bevel gear
housing shims)
((TIT
3
10-26)
Part No.
Shim thickness (mm)
27445-24A01-030
0.30
27445-24A01-035
0.35
27445-24A01-040
0.40
27445-24A01-050
0.50
27445-24A01-060
0.60
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