Content .. 71 72 73 74 ..

Snowmobile Polaris 600 RUSH (2010 year). Manual - part 73

8.58

Steering and Suspensions

9923311 - 2010-2012 PRO-RIDE RUSH/Switchback/RMK Service Manual

RMK/PRO RMK 155/163 Rear Torque Arm

Assembly Notes

• Never re-use lock nuts. Always replace with new

parts.

• All pivots must rotate freely after tightening

fasteners.

REAR TRACK SHOCK PIVOT

SHOCK ROD

REAR PIVOT

PIVOT SHAFT

INNER SHAFT

BUSHING

GREASE ZERK

CARRIER WHEEL

COLLAR

BUSHING

METRIC FASTENERS

= T

A: 46 ft-lb (63 Nm)



B: 17 ft-lb (23 Nm)

CAUTION

Some rail shaft fasteners are pre-coated with locking

agent. Never re-use these fasteners once removed.

Always use new pre-coated fasteners.

8.59

Steering and Suspensions

9923311 - 2010-2012 PRO-RIDE RUSH/Switchback/RMK Service Manual

PRO-RIDE PROGRESSIVE
SUSPENSION OPERATION

Operation

The Pro-Ride progressive suspension allows the rider to
easily adjust the desired amount of weight transfer, ski
pressure, and ride comfort using the following
components:

• Rear track shock spring preload

• Rear track shock compression dampener

• Front track shock spring preload

• Front track shock compression dampener

• IFS shock compression dampeners

• IFS shock spring preload

Unlike other Polaris rear suspensions, the Pro-Ride
progressive rear suspension is not coupled and does not
feature front or rear-rear scissor stops. The front torque
arm is not linked with the rear crank or rear scissor.

Weight transfer during acceleration is controlled by two
primary factors. The first weight transfer control is the rear
track shock spring preload. The second weight transfer
control is rider position.

• Increasing rear track shock spring preload reduces

weight transfer during acceleration and increases
ski pressure in all driving modes

• Sitting or standing close to the fuel tank decreases

weight transfer and increases ski pressure in all
driving modes

• Decreasing rear track shock spring preload

increases weight transfer during acceleration and
decreases ski pressure in all driving modes

• Sitting or standing at the rear of the seat increases

weight transfer under acceleration and decreases
ski pressure in all driving modes

Ride comfort is controlled by the compression dampener
adjusters on the IFS, and front/rear track shocks. All
shocks offer sixteen compression dampening settings.

• Increasing shock dampening reduces bottoming,

but makes the ride stiffer

• Decreasing shock dampening makes the ride

softer, but increases the chance the suspension
will bottom-out

Adjustment Procedures

Always adjust the Pro-Ride Progressive suspension
following these three steps:

Set the rear track shock spring preload for the rider
weight in everyday “street clothes”, not riding gear.

Adjust “fine tune” the balance of the snowmobile
based on rider preference by increasing or decreasing
the rear track spring preload.

Adjust the shock compression dampeners to tune ride
quality. Increase the compression dampening to
stiffen the ride. Decrease the compression
dampening to soften the ride.

STEP 1 - REAR TRACK SHOCK SPRING PRELOAD

The rear track shock spring preload is set to the
rider’s weight in everyday clothing, not riding gear.

Using the spring gauge tool supplied with the vehicle,
set the spring preload.

NOTE: Lifting up on the seat support will remove the
load on the shock spring, making spring adjustment
easier.

If the shock threads are dirty or the preload knob is
difficult to turn, spray the threads with Shock Thread
Spray Lubricant, PN 2878018.

Place the spring gauge tool on top of the shock with
the narrow end against the spring retainer knob.

Reference where the silver shock body meets the red
shock end cap. Turn the spring preload adjuster knob
in or out until the weight call out on the gauge is
aligned with the silver-meets-red parting line.

A tape measure can be used to set the spring preload
when a gauge is not available, or an accessory rear
track shock spring is installed in place of the standard
spring.

Reference the Spring Guide Table when using a tape
measure for all springs.

2010 Tool Shown

8.60

Steering and Suspensions

9923311 - 2010-2012 PRO-RIDE RUSH/Switchback/RMK Service Manual

2010-2011 RTS Spring Guide

The stock rear track spring is a 190#/inch spring. The
stock spring will accommodate most riders weighing
between 120 and 250 lbs. (54-113 kg).

Two additional accessory springs are available for riders
whose weight is at the lowest or highest settings for the
190 spring.

All of the springs, spring gauge tools, and spring preload
measurements using a tape measure are provided in the
RTS Spring Guide Table below.

NOTE: Use a tape measure in the same manner as a
gauge tool with the end of the tape against the
spring tension adjuster knob and the preload
measurement length at the shock-body cap parting
line.

2010-2011 RTS Spring Guide Table

STOCK 190 SPRING

120 - 250

LBS

120 LWT SPRING

90 - 155

LBS

260 HD SPRING

240+

LBS

SPRING PN =

2010=7043572-385

2011 = 7043572-133

SPRING PN = 7041575-385

SPRING PN = 7043585-385

STOCK SPRING GAUGE PN

2010 = 5253792

2011 = 5254748

LWT SPRING GAUGE PN

2010 = 5253854

2011 = 5254749

HD SPRING GAUGE PN

2010 = 5253855

2011 = 5254750

Rider Weight

Preload

Rider Weight

Preload

Rider Weight

Preload

lbs.

in.

lbs.

in.

lbs.

in.

120

2 5/8

MIN

6.7

MIN

2 5/8

MIN

6.7

MIN

240

109

2 3/8

MIN

6.0

MIN

130

2 3/4

7.0

2 3/4

7.0

255

116

2 1/2

6.3

140

2 7/8

7.3

100

2 7/8

7.3

270

122

2 5/8

6.7

150

7.6

105

7.6

280

127

2 3/4

7.0

160

3 1/8

7.9

110

3 1/8

7.9

295

134

2 7/8

7.3

170

3 1/4

8.3

115

3 1/4

8.3

310

141

7.6

180

3 3/8

8.6

120

3 3/8

8.6

320

145

3 1/8

7.9

190

3 1/2

8.9

125

3 1/2

8.9

335

152

3 1/4

MAX

8.3

MAX

200

3 5/8

9.2

130

3 5/8

9.2

210

3 3/4

9.5

135

3 3/4

9.5

220

100

3 7/8

9.8

140

3 7/8

9.8

230

104

10.1

150

10.1

240

109

4 1/8

10.5

155

4 1/8

MAX

10.5

MAX

250

113

4 1/4

MAX

10.8

MAX

CAUTION

DO NOT ADJUST SPRING PRELOAD PAST THE MINIMUM

OR MAXIMUM SETTINGS LISTED FOR EACH SPRING.

8.61

Steering and Suspensions

9923311 - 2010-2012 PRO-RIDE RUSH/Switchback/RMK Service Manual

2012 RTS Spring Guide

The stock spring will accommodate most riders weighing
between 120 and 260 lbs. (54-118 kg).

Two additional accessory springs are available for riders
whose weight is at the lowest or highest settings for the
stock spring.

All of the springs, spring gauge tools, and spring preload
measurements using a tape measure are provided in the
RTS Spring Guide Table below.

NOTE: Use a tape measure in the same manner as a
gauge tool with the end of the tape against the
spring tension adjuster knob and the preload
measurement length at the shock-body cap parting
line.

2012 RTS Spring Guide Table

STOCK SPRING

120 - 260

LBS

120 LWT SPRING

90 - 155

LBS

260 HD SPRING

240+

LBS

SPRING PN =

RUSH = 7043195-133

Switchback = 7043160-133

SPRING PN = 7041575-385

SPRING PN = 7043585-385

STOCK SPRING GAUGE PN

9923267

LWT SPRING GAUGE PN = N/A

HD SPRING GAUGE PN = N/A

Rider Weight

Preload

Rider Weight

Preload

Rider Weight

Preload

lbs.

in.

lbs.

in.

lbs.

in.

120-140

54-64

1 1/2

MIN

3.81

MIN

2 5/8

MIN

6.7

MIN

240

109

2 3/8

MIN

6.0

MIN

2 3/4

7.0

255

116

2 1/2

6.3

140-160

64-73

1 3/4

4.44

100

2 7/8

7.3

270

122

2 5/8

6.7

105

7.6

280

127

2 3/4

7.0

160-180

73-82

5.08

110

3 1/8

7.9

295

134

2 7/8

7.3

115

3 1/4

8.3

310

141

7.6

180-200

82-91

2 1/8

5.39

120

3 3/8

8.6

320

145

3 1/8

7.9

125

3 1/2

8.9

335

152

3 1/4

MAX

8.3

MAX

200-220 91-100

2 1/4

5.71

130

3 5/8

9.2

135

3 3/4

9.5

220-240 100-109

2 1/2

6.35

140

3 7/8

9.8

150

10.1

240-260 109-118

2 3/4

MAX

6.98

MAX

155

4 1/8

MAX

10.5

MAX

CAUTION

DO NOT ADJUST SPRING PRELOAD PAST THE MINIMUM

OR MAXIMUM SETTINGS LISTED FOR EACH SPRING.

Content .. 71 72 73 74 ..