Suzuki VLR1800 Service Manual page 469

Tooth Contact
After bringing the backlash within specification by
changing the secondary driven bevel gear shims, it will
be necessary to check tooth contact.
1) Remove the secondary gear case.
2) Clean and degrease the secondary drive bevel gear
teeth, and apply a coating of machinist's layout dye
or paste to several teeth.
3) Reinstall the secondary gear case same as backlash
measurement, with removed shims (1) and (2).
1. Shim (Drive bevel gear side)
2. Shim (Driven bevel gear side)
4) Rotate the secondary driven bevel gear coupling
several turns in both directions.
5) Remove the secondary gear case from the
crankcase, and observe the tooth contact pattern
made in the dye or paste.
6) Compare the tooth contact pattern to the examples
as shown in [A], [B] and [C].
7) If tooth contact is found to be incorrect, the shims of
the secondary drive bevel gear and secondary
driven bevel gear must be changed, tooth contact
should be rechecked until correct.
CAUTION
!
After the tooth contact adjustment is made,
the backlash must be rechecked, as it may
change. Refer to the backlash checking sub-
section, and readjust until both backlash and
tooth contact are correct.
Backlash
Contact at tooth top [A]
Contact at tooth root [B]
1
2
I822H1310038-01
Shim adjustment
Decrease thickness of
shims (1) or (2)
Increase thickness of
shims (1) or (2)
Drive Chain / Drive Train / Drive Shaft:
Contact Position
[A]
[B]
[C]
[A]: Incorrect (Contact at tooth top)
[B]: Correct
[C]: Incorrect (Contact at tooth root)
List of shims (For drive bevel gear side) (1)
Part number
24935-48G00-040 0.40 mm (0.016 in)
24935-48G00-045 0.45 mm (0.018 in)
24935-48G00-050 0.50 mm (0.020 in)
24935-48810 24935-48G00-055 0.55 mm (0.022 in)
(Shim set: 9 24935-48G00-060 0.60 mm (0.024 in)
pcs.) 24935-48G00-065 0.65 mm (0.026 in)
24935-48G00-070 0.70 mm (0.028 in)
24935-48G00-075 0.75 mm (0.030 in)
24935-48G00-080 0.80 mm (0.031 in)
List of shims (For driven bevel gear side) (2)
Part number
24945-48G00-030 0.30 mm (0.012 in)
24945-48810 24945-48G00-035 0.35 mm (0.014 in)
(Shim set: 5 24945-48G00-040 0.40 mm (0.016 in)
pcs.) 24945-48G00-050 0.50 mm (0.020 in)
24945-48G00-060 0.60 mm (0.024 in)
3A-11
I822H1310109-03
Shim thickness
Shim thickness