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IMPORTANT

The Owner's Manual for this vehicle contains warnings, instructions and other information you must read and fully understand before safely riding or performing maintenance on this vehicle. Always follow the warnings and instructions in Owner's Manual.

Click the link above for the Table Of Contents, or download a full PDF of the Owner Manual in the Owner Support area of Polaris.com.

Track Tension

Track adjustment is critical for proper handling. Always maintain correct tension and alignment.

Track Tension Specifications – BackTrak20 Rear Suspension
Slack Measurement Weight Measurement Location
1-1.25 in (2.5-3.2 cm) 10 lb (4.54 kg) 16 in (40 cm) ahead of rear idler shaft bolt
TIP

Tension adjustments should be made only after the track is warmed up and limber. Check more frequently when the snowmobile is new.

  1. Turn the engine off.

  2. Lift the rear of the snowmobile and safely support it off the ground.

  3. Place the recommended weight 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.

  5. Check for specified slack between the wear surface of the track clip and the plastic slider.

    If the track needs adjustment:

  6. Loosen the rear idler shaft bolt.

  7. Loosen the locknuts.

  8. Tighten or loosen the track adjusting screws to provide equal adjustment on both sides of the track.

  9. Repeat the measurement on the other side of the track.

  10. Start the engine and slowly rotate the track at least five revolutions. Let the track come to a stop (do not apply brakes).

  11. Check track alignment (see Track Alignment) and adjust as necessary.

  12. Tighten the locknuts.

  13. Tighten the idler shaft bolt.

    TORQUE

    Idler Shaft Bolt

    33 ft-lbs (45 N·m)

Parent topic: Track Maintenance