Torsion Springs/Sag Setting - Polaris 600 RUSH 2010 Manual

Torsion Springs/SAG Setting

The INDY 121 and Switchback 144 rear suspensions are
equipped with rear torsion springs. The spring preload can
be set by adjusting the torsion spring preload blocks.
The torsion spring preload sets the rear suspension SAG
setting. SAG is the difference between the unloaded and
loaded rear bumper height when the snowmobile is sitting
on snow.
The SAG specifications are:
Rear Suspension SAG Settings:
INDY 121 - 3-4 in. (7.5-10cm)
Switchback 144 - 5 in. (12.7cm)
1. Position the snowmobile on snow.
NOTE: Positioning the snowmobile on a hard
surface (pavement/concrete)
weight to the rear track shock/torsion springs and
can distort the following measurements.
2. Lift the rear bumper to fully extend the rear
suspension. Using a tape measure, find (X).
X
3. Have the rider, in riding gear, mount the snowmobile.
The rider should drop down hard on the seat and
bounce the suspension several times to collapse the
suspension.
4. Again, measure the distance between the rear
5. Subtract measurement Y from X (X-Y=SAG).
6. Set both torsion spring adjuster blocks to LOW,
distributes more
SOFT
MEDIUM
FIRM
NOTE: Optional torsion springs are available to fine
tune
specifications in Chapter 1.
Steering and Suspensions
bumper and ground (Y).
Y
MEDIUM, or HIGH to achieve the specified SAG
measurement.
SWITCHBACK 144
SAG setting. See
INDY 121
individual model
8.13
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