Polaris 850 PRO-RMK 155 2.6" QD 2021, Manual

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2.50
9850060 R02 - 2020-2021 850 AXYS™ Long Track Snowmobile Service Manual
© Copyright Polaris Inc.
TRACK ALIGNMENT
NOTICE
Perform track alignment procedure in well-ventilated
area.
Periodically check that the track is centered and running
evenly on the slide rails. Misalignment will cause
excessive wear to the track and slide rail.
1. Safely support the rear of the snowmobile with the
track off the ground.
2. Start the engine and apply a small amount of throttle
until the track turns slowly at least five complete
revolutions. Stop the engine and let the track come to
a stop (do not apply brakes).
3. Inspect track alignment by looking through the track
window to make sure the rails
q
are evenly spaced
on each side. If the track runs to the left, loosen the
idler shaft bolts, then loosen the left locknut and
tighten the left adjusting bolt. If the track runs to the
right, loosen the idler shaft bolts, then loosen the right
locknut and tighten the right adjusting bolt.
NOTICE
Image for reference only.
4. After adjustments are complete, verify the track
tension is set to specification.
5. Tighten the locknuts.
6. Tighten the idler shaft bolts to specification.
TORQUE
Rear Idler Fastener Torque:
55 ft-lbs (75 Nm) +/- 10%
TRACK TENSION INSPECTION
Track adjustment is critical for proper handling. Always
maintain correct tension and alignment.
NOTICE
Closely monitor track tension during the break-in
period. Track ratcheting, especially when descending a
slope, may occur when the track tension exceeds the
maximum slack measurement.
NOTICE
Image for reference only.
1. Verify the track is warmed up and limber. Stop the
engine.
2. Lift the rear of the snowmobile by the chassis
(running boards) until the track is slightly above the
ground. Safely support the rear of the snowmobile in
this position.
3. Place the recommended weight
r
or downward
pressure on the track at the specified distance (see
chart) ahead of the center of the rear idler wheel.
4. Measure at the point where the weight is hanging
r
.
5. Check for specified slack between the wear surface
of the track clip and the plastic slider, See Track
Tension Specifications.
MAINTENANCE