Polaris 120 Dragon - Manual (Page 67)

63
ADULT SECTION
Maintenance
Track Tension
Track adjustment is critical for proper handling. Always maintain cor-
rect tension and alignment.
1. Operate the snow-
mobile to warm up
the track.
2. Stop the engine.
3. Support the rear of
the snowmobile
slightly off the
ground with an
appropriate snow-
mobile support.
4. Hang a 10-pound
(4.5 kg) weight 8
inches (20 cm) from
the center of the
rear idler wheel.
5. Measure the distance between wear surface of the track clip and the
plastic slider at the point where the weight is hanging. Deflection at
this point should be 3/4" (19 mm).
6. If the track tension needs adjustment, follow the procedure on page
64.
NOTE: If the rear idler wheel
assembly washers are
removed, be sure they are
reinstalled with the domed
side of the washer facing
outward as shown.
8" (20 cm) 10 lbs.
(4.5 kg)
Adjusting
Screw
Idler
Shaft
Bolt
Rear Idler
Wheel
Washer
Domed Side
Outward