Rear Gear Case (Fis Models); Hub - Arctic Cat 400 Service Manual

6. Install the wheels and tighten to specifications.
7. Remove the ATV from the support stand.
NOTE: Check all fasteners for tightness and
check the brakes for proper operation before test
riding.
Rear Gear Case
(FIS Models)
REMOVING
1. Remove the left-side rear A-arms (see Rear
A-Arms in Section 7).
2. Remove both of the rear drive axles (see Drive
Axles in this section).
3. Remove the four cap screws securing the engine
output shaft to the rear gear case input flange.
4. Remove the two cap screws and lock nuts secur-
ing the rear gear case to the frame; then remove
the gear case through the left side.
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CC762
CD028
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AT THIS POINT
For servicing the input shaft, pinion gear, needle
bearing, and axle seal on FIS models, see Front
Differential (FIS Models) in this section.
INSTALLING
1. Slide the gear case into position through the left
side of the frame; then secure it to the frame
with cap screws and lock nuts. Tighten to speci-
fications.
NOTE: If a new gear case is being installed,
tighten the cap screws to 5.1-6.3 kg-m (37-45.5
ft-lb).
2. Secure the engine output shaft to the rear gear
case input flange with three cap screws (coated
with red Loctite #271) and lock nuts. Tighten to
specifications.
3. Install the rear drive axles (see Drive Axles in
this section).
4. Install the left-side rear A-arms (see Rear
A-Arms in Section 7).

Hub

REMOVING
1. Secure the ATV on a support stand to elevate the
wheel; then remove the wheel.
! WARNING
Make sure the ATV is solidly supported on the
support stand to avoid injury.
2. Remove the cotter pin from the nut.
NOTE: During assembly, new cotter pins should
be installed.
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AF960A
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