Snowmobile Polaris EDGE / WIDETRAK (2007-2012 year). Manual - part 53

 

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Snowmobile Polaris EDGE / WIDETRAK (2007-2012 year). Manual - part 53

 

 

8.14

Steering and Suspension Systems

9923396 - 2007-2012 EDGE/Widetrak LX Service Manual

©2011 Polaris Sales Inc.

If the rear suspension ride height can not be adjusted to
the correct dimension, optional torsion springs may be
required. This is only an initial setup, and final spring
preload may vary based on rider preference and riding
conditions.

Scissor Stop Adjustments

The RRSS controls weight transfer from the rear
suspension to the skis. It also influences the stiffness of
the ride by controlling the amount of coupling action
between the front and rear torque arms. To decrease
weight transfer, the RRSS should be set in the high
position.

The RRSS can be totally removed for maximum weight
transfer. However, unless the torsion springs and rear
shock valving are changed, the ride will be compromised.
Always maintain equal adjustment on both sides.

To adjust the scissor stops place the scissor tool onto the
scissor block and turn to the desired position. Ensure that
the rear scissor stop face is square with the face of the
scissor arm to ensure complete contact.

The dot is an indicator of the
HIGH position. The sides are the
LOW position and the bottom is
the MEDUIUM position. 

Front Torque Arm Limiter 

Strap Adjustment

One method of changing ski-to-snow pressure is to
change the length of the front torque arm limiter straps.
The limiter strap is normally mounted in the fully extended
position. Both limiter straps must be adjusted evenly and
remain equal in length to avoid improper Hi-Fax and track
wear.

• Lengthening the straps decreases ski pressure 

under acceleration.

• Shortening the straps increases ski pressure 

under acceleration.

RMK/Switchback set up recommendations for optimum
performance.

• DEEP POWDER SNOW:FTA in LOW position for 

maximum lift and flotation.

• POWDER-HARDPACK:FTA in STANDARD 

position for overall handling and speed over snow.

• HARDPACK: FTA in HIGH position for increased 

control and less transfer.

Torsion Spring Adjustment

To adjust the rear torsion spring, rotate the adjuster cam to
the desired setting (LOW, MEDIUM, HIGH).

A variety of optional torsion springs are available if
adjusting the cams fail to achieve the desired results. The
optional springs are listed under each model’s REAR
SUSPENSION information in the MODEL
SPECIFICATIONS chapter.

ROTATE

HIGH

LOW

LOW

MEDIUM

HIGH

LOW

LOW

MEDIUM

RMK/Switchback

8.15

Steering and Suspension Systems

8

9923396 - 2007-2012 EDGE/Widetrak LX Service Manual

©2011 Polaris Sales Inc.

Widetrak Torsion Spring Adjustments

Rear spring adjustment is primarily a control for riding
comfort. To check for the recommended settings:

1.

Lift the rear of the machine to relieve the rear springs.

2.

Slowly lower the machine and measure the distance
between the ground and the running board.

3.

Without letting the suspension settle, the rider should
carefully mount the snowmobile.

4.

Measure the distance between the ground and the
same spot on the running board. The difference
between the two readings should be approximately 1
1/2” (3.8 cm). If the difference is greater than 1 1/2”
the rear spring should be adjusted equally on both
sides until the desired 1 1/2” drop is obtained.

Compensating adjustments for heavy or light drivers or
cargo loads can be made by adjusting the rear spring eye
bolt (A) length. Adjust spring tension so there is equal
tension on the long leg of each spring.

NOTE:   Rear spring settings will affect ski-to-ground
pressure. If ski pressure is too light it may be
desirable to tighten the rear springs for an increase in
ski-to-ground pressure.

Widetrak Ski Pressure Adjuster

A ski pressure adjuster is located on the rrear suspension
torque arm. Turn the adjuster knob clockwise (+) to
increase ski pressure when pulling or carrying heavy
loads. Turn the adjuster counterclockwise (-) to reduce ski
pressure under normal operating conditions.

A

ADJUSTER KNOB

(+) / (-) INDICATORS

8.16

Steering and Suspension Systems

9923396 - 2007-2012 EDGE/Widetrak LX Service Manual

©2011 Polaris Sales Inc.

REAR SUSPENSION ASSEMBLY ILLUSTRATIONS

EDGE 121 Pivots / Rear Idler

Assembly Notes

• Never re-use Nylock nuts fasteners with locking 

agent. Always replace with new parts.

• All pivots must rotate freely after tightening 

fasteners.

• Apply Polaris Premium All Season Grease to all 

grease zerks as outlined in the maintenance table.

SHOCK PIVOT

IDLER SHAFT

SHAFT

H BRACKET

REAR PIVOT SHAFT

SHAFT

SPACER

WASHER

SPACER

GREASE ZERK

GREASE ZERK

B

A

B

C - Both
Sides

B

B

A

T 

A = 45 Ft.Lbs.
B = 35 Ft.Lbs.

C = 36 Ft.Lbs.

CAUTION

Some rail shaft fasteners are pre-coated with locking 

agent. Never re-use these fasteners once removed. 

Always use new pre-coated fasteners when mounting 

the suspension to the tunnel.

8.17

Steering and Suspension Systems

8

9923396 - 2007-2012 EDGE/Widetrak LX Service Manual

©2011 Polaris Sales Inc.

EDGE 121 Rail Assembly

Assembly Notes

• Never re-use Nylock nuts fasteners with locking 

agent. Always replace with new parts.

• All pivots must rotate freely after tightening 

fasteners.

• Apply Polaris Premium All Season Grease to all 

grease zerks as outlined in the maintenance table.

RAIL TIP

CARRIER WHEELS

REAR-REAR SCISSOR STOP

FRONT-REAR SCISSOR STOP

IDLER ADJUSTMENT BOLT

SLIDER

SLIDER FASTENER

A

A

A

B

B

B

C

T 

A = 19 Ft.Lbs.
B = 35 Ft.Lbs.

C = 3 - 6 Ft.Lbs.

CAUTION

Some rail shaft fasteners are pre-coated with locking 

agent. Never re-use these fasteners once removed. 

Always use new pre-coated fasteners when mounting 

the suspension to the tunnel.

 

 

 

 

 

 

 

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