Arctic Cat 500 Service Manual page 123

4. Install a new seal (F), output yoke (G), and nut (H)
and tighten to 74 ft-lb.
 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 rota-
tions in both directions. Gear contact should extend
from the root to the top of the gear teeth.
MT012
6. To adjust tooth contact, use the following chart to
correctly 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. If removed, install the secondary drive/bevel gear
shaft into the crankcase; then tighten the nut to 59
ft-lb.
MT008A
2. Install the secondary drive bearing support; then
install the secondary driven output shaft into the
crankcase.
3. Mount the dial indicator so the tip is contacting a
tooth on the secondary drive bevel gear.
4. While rocking the drive bevel gear back and forth,
note the maximum backlash reading on the gauge.
MT008B
5. 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.
MT016A
Shim Correction
Increase Shim Thickness
Decrease Shim Thickness
MT005A
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