Polaris Offroad Vehicle - Manual (Page 132)

122
MAINTENANCE
Rear Drive Chain Slack Adjustment
CAUTION: Never adjust or operate the vehicle with the rear drive chain too
loose or too tight as severe damage to the transmission and drive components can
result. Chain tension must be inspected with the swing arm in the position shown
in illustration.
Check the amount of chain slack by moving the vehicle slightly forward to gain
slack at the top side of the rear chain. Collapse the suspension by using an adjust-
able (buckle type) trailer tie down. Fasten the strap around the axle and rear bum-
per tube. Tighten until a straight line (A) can be drawn from the axle to the transmis-
sion output shaft intersecting the swing arm pivot. This establishes the tightest
chain position. At this point the chain should have 1/4″-1/2″(.6cm-1.3cm) deflec-
tion. If the chain needs adjustment, use the following procedure.
Adjustment Procedure
1. Loosen chain guard.
2. Loosen two eccentric locking
bolts.
3. Insert a pin punch through the
sprocket hub and into the eccen-
tric axle housing.
4. Roll the vehicle ahead or back to
adjust chain slack to the proper
dimension.
5. Tighten the eccentric locking
bolts to 60 ft. lbs. (8.3 kg/m).
6. Reinstall chain guard.
NOTE: Reposition chain guide to al-
low 1/8″ (.3 cm) clearance between
sprocket and guide.
Rear Drive Chain Adjustment
3
2
Proper Splice-
link Clip Open-
ing Position
Strap
1/4″- 1/2″ (.6-1.3 cm)
Deflection
A
(Freeplay of chain - no force applied to chain)