Tooth Contact Adjustment - Suzuki GS850G Service Manual

SHAFT DRIVE
List of Shims
-
Final
Gear
to Case
C I
specificn! ion, adjust
the
shim
thickness
Remove shims from final
gear
cover and
final
gear
case, and measure total
thickness.
*
In order not to change the clearance
between
the final
gear cover and final
driven gear bearing, the totaI thickness of
the shims installed after a change
is
made
must equal the original total thickness of
shims.
I f backlash is too large:
a)
install
a thinner shim pack between Final
driven gear and final gear case.
b) Increase thickness
of shims
between
final gear cover and bearing by an
amount equal to the decrease above.
Jf backlash
is too small:
a) Install a thicker
shim pack between final
driven gear and final
gear case.
b)
Decrease thickness
of shims
between
final gear
cover and bearing by a n
amount
equal
to the increase above.
EXAMPLE:
Final gear
to case
shims:
1.3Smrn
-I-
1.05rnm = 2.40rnm
Final ;gear cover
to
bearing shims:
0.SOrnm t . 0.40mm = 0.90mm
Original total measurement
=
3.30mrn
Backlash ton large:
Final gear
to case shiins:
I
.30mrn
+
1.05mm
=
2.35mrn
Final
gear
cover to bearing shims;
0.601-11m
+
0.35rnm
=
0.95mm
3.30mm
Backlash too
small:
Final gear to case shims;
1.40mrn
+
1.05rnrn
=
2.45mrn
Final gear
cover to bearing shims;
0.50mrn +0.35rnm
=
0.85mm
3.30mm
List
of Shims - FinaI Gear Covet to Bearing
Part Number
27326-45 104
45 100
45101
-45
103
45102
TOOTH CONTACT ADJUSTMENT
*
After
backlash
adjustment is carried out,
the tooth
contact
must be checked.
Remove the
10
baits from the final gear
cover, and remove the cover, using the
screws from the contact breaker
cover
(sce
page 8
-
7). Do
not misplacc the shims.
Remove the driven
gear.
w
Clean and de-erease several
teeth
on the
final
driven gear. Coat these teeth with
machinist's dye (usually available from
parts houses)
or
paste, preferably qf
st
light
color.
Re-install the driven gear with shims in
place, positioning the
coated
teeth
so
they
are centered on
the
final drive
gear.
Re-instail the final gear cover and bolts,
and tighten to specification.
Thickness
1.35 mm
1.25
1.20
1.10
8
.OS
Using
a
socket and
handle
on the final
drive gear coupling nut, rotate the
final
drive gear several turns
in each
direction,
while loading the final driven gear. This
wilI provide a contact pattern on the coated
teeth of the
driven gear.
* Remove
the final gear
cover
and final gear,
and inspect the coated teeth of
the driven
gear. The
contact
patch should be as
shown below:
7
Final Gear Cover Bolt
Tightening Torque
2 .0-2.6
kg-rn
(14.5-1 9.0 Ih-ft)