3-56
Checking Backlash
1. If removed, install the secondary drive/bevel gear
shaft into the transmission case; then tighten the
nut to 80 ft-lb.
2. Install the secondary driven output shaft into the
gear case and seat firmly.
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.
MT005A
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 thicker shim.
2. If backlash measurement is more than specified,
remove an existing shim, measure it, and install a
thinner shim.
NOTE: Continue to remove, measure, and install
until backlash measurement is within tolerance.
Note the following chart.
After backlash and tooth contact are within specifica-
tions, apply red Loctite #271 to the driveshaft threads
and driven output shaft threads; then using new nuts,
tighten the output shaft nut to 80 ft-lb and the output
drive yoke nut to 72 ft-lb.
Assembling Gear Case
1. Install new bearings and seals in the left-side and
right-side cases as required.
DE170
DE169
2. Install the reverse idler gear making sure to install
a washer on each side of the gear; then install the
input driveshaft.
DE179
DE140
Backlash Measurement
Shim Correction
Under 0.127 mm (0.005 in.)
Increase Shim Thickness
At 0.127-0.381 mm (0.005-0.015 in.)
No Correction Required
Over 0.381 mm (0.015 in.)
Decrease Shim Thickness
Next
Back
Section
Table of Contents
Manual
Table of Contents
FOR ARCTIC CAT ATV DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983
www.mymowerparts.com