Measuring The Final Gear Backlash - Yamaha Grizzly550 User Manual

REAR CONSTANT VELOCITY SHAFT ASSEMBLIES, FINAL
D
M MMM M MMM M M MMM M M MMM M
a. Place four pieces of Plastigauge® between
the originally fitted wheel gear shim(s) and
the wheel gear.
b. Install the wheel gear and tighten the bolts to
specification.
Final gear case cover bolt
23 Nm (2.3 m·kg, 17 ft·lb)
TIP
Do not turn the drive pinion gear, wheel gear, or
driven pinion gear when measuring the clear-
ance with Plastigauge®.
c. Remove the wheel gear.
d. Measure the thrust clearance. Calculate the
width of the flattened Plastigauge® "1".
Wheel gear thrust clearance
0.03–0.07 mm (0.0012–0.0028 in)
DRIVE ASSEMBLY AND REAR DRIVE SHAFT
M MMM M M MMM M MMM
1
8-29
e. If out of specification, remove the originally fit-
ted shim(s), and then select the correct
shim(s).
L LLL L LLL L L LLL L L LLL L
2. Select:
• Wheel gear shim(s)
M MMM M MMM M M MMM M M MMM M
a. Select suitable wheel gear shims using the
following chart.
Wheel gear shims
Thickness (mm)
0.25 0.30 0.35 0.40 0.45 0.50
TIP
Measure the thickness of the originally fitted
shim(s), and then calculate the required new
shim thickness to bring the wheel gear thrust
clearance within the specified limits.
b. Repeat the measurement steps until the
wheel gear thrust clearance is within the
specified limits.
L LLL L LLL L L LLL L L LLL L
EAS30170

MEASURING THE FINAL GEAR BACKLASH

1. Secure the final drive case in a vise or anoth-
er supporting device.
2. Remove:
• Drain plug
• Gasket
3. Install:
• Ring gear fix bolt (M14) "1"
(into the drain plug hole)
Ring gear fix bolt (M14)
90890-01524
YM-01524
ECA16250
NOTICE
Finger tighten the bolt until it holds the ring
gear. Otherwise, the ring gear will be dam-
aged.
4. Attach:
• Final gear backlash band "2"
• Dial gauge "3"
Final gear backlash band
90890-01511
Middle drive gear lash tool
YM-01230
L LLL L L LLL L LLL
M MMM M M MMM M MMM
L LLL L L LLL L LLL