Arctic Cat WILDCAT/X Service Manual page 85

 NOTE: Do not use a new lock nut at this time as this
procedure may have to be repeated.
5. Place the assembled shaft into the left crankshaft case;
then lightly coat the gear teeth with machinist's lay-
out dye. Rotate the shafts through several rotations in
both directions. Gear contact should extend from the
root to the top of the gear teeth.
6. To adjust tooth contact, use the following chart to cor-
rectly shim the driven shaft.
Tooth Contact
Contact at Top
Contact at Root
7. After correct tooth contact is established, proceed to
Checking Backlash in this sub-section.
Checking Backlash
1. Install the drive bevel gear assembly and driven bevel
gear/output shaft assembly into the crankcase bottom
cover.
2. Mount the dial indicator so the tip is contacting a tooth
on the secondary drive bevel gear.
3. Firmly hold the bearing down and while rocking the
drive bevel gear back and forth, note the maximum
backlash reading on the gauge.
MT016A
Shim Correction
Increase Shim Thickness
Decrease Shim Thickness
FW-008
4. Acceptable backlash range is 0.127-0.381 mm (0.005-
0.015 in.).
Correcting Backlash
 NOTE: If backlash measurement is within the
acceptable range, no correction is necessary.
1. If backlash measurement is less than specified,
remove an existing shim, measure it, and install a new
thinner shim.
2. If backlash measurement is more than specified,
remove an existing shim, measure it, and install a
thicker shim.
 NOTE: Continue to remove, measure, and install
until backlash measurement is within tolerance. Note
the following chart.
Backlash Measurement
Under 0.127 mm (0.005 in.)
At 0.127-0.381 mm (0.005-0.015 in.)
Over 0.381 mm (0.015 in.)
3. Once correct gear pattern and backlash are established,
install a new output pinion nut (coated with red Loctite
#263) on the output shaft and tighten to 200 ft-lb.
4. Using an appropriate holding fixture and wrench
adapter, install the secondary drive gear nut (threads
coated with red Loctite #263) and tighten to 200 ft-lb.
The output drive assembly is now ready for installa-
tion.
GZ398
FW-006A
Shim Correction
Decrease Shim Thickness
No Correction Required
Increase Shim Thickness
83