Adjusting The Final Gear Backlash - Yamaha Grizzly550 User Manual

REAR CONSTANT VELOCITY SHAFT ASSEMBLIES, FINAL
3
2
a. Measuring point is 31.5 mm (1.24 in)
5. Measure:
• Gear backlash
Gently rotate the final drive pinion gear from
engagement to engagement.
Final gear backlash
0.10–0.20 mm (0.004–0.008 in)
TIP
• When measuring the gear backlash, be sure
the right side (gear oil level check bolt side) of
the final drive case assembly is facing down-
ward.
• Measure the gear backlash at four positions.
Rotate the final drive pinion gear 90° each
time.
EAS30180

ADJUSTING THE FINAL GEAR BACKLASH

1. Remove:
• Final driven pinion gear assembly "1"
• Final driven pinion gear shim (final drive case
side) "2"
• Thrust washer "3"
• Final driven pinion gear shim (final drive case
cover side) "4"
2
3
2. Adjust:
• Gear backlash
M MMM M MMM M M MMM M M MMM M
a. Select a suitable shim(s) and thrust wash-
er(s) using the following chart.
DRIVE ASSEMBLY AND REAR DRIVE SHAFT
1
a
1
4
M MMM M M MMM M MMM
8-30
Final gear backlash is in-
Thinner shim
creased.
Final gear backlash is de-
Thicker shim
creased.
b. If increased by more than 0.2 mm (0.008 in):
Reduce the final driven pinion gear shim (final
drive case cover side) "4" thickness by 0.2
mm (0.008 in) for every 0.2 mm (0.008 in) that
the final driven pinion gear shim (final drive
case side) "2" and thrust washer "3" are in-
creased.
c. If reduced by more than 0.2 mm (0.008 in):
Increase the final driven pinion gear shim (fi-
nal drive case cover side) "4" thickness by 0.2
mm (0.008 in) for every 0.2 mm (0.008 in) that
the final driven pinion gear shim (final drive
case side) "2" and thrust washer "3" are de-
creased.
Final driven pinion gear shims (fi-
nal drive case side) "2"
Thickness (mm)
0.25 0.30 0.35 0.40 0.45 0.50
Thrust washers "3"
Thickness (mm)
4.50 4.80 5.10 5.40
TIP
Be sure to use one of each of the final driven pin-
ion gear shim (final drive case side) "2" and
thrust washer "3" to obtain the shim and thrust
washer thickness.
Final driven pinion gear shims (fi-
nal drive case cover side) "4"
Thickness (mm)
0.25 0.30 0.35 0.40 0.45 0.50
L LLL L LLL L L LLL L L LLL L L LLL L L LLL L LLL
techsparkstudio.com