Snowmobile Ski Doo REV SERIES (2006 year). Instruction - part 87

Section 08 DRIVE SYSTEM

Subsection 03 (DRIVEN PULLEY)

Install slider shoes as per following photo. Red
slider shoes are being used for reverse and black
ones for forward.

A30D0WA

1. BLACK slider shoe
2. RED slider shoe

Screws

Screws no. 12 are machined at their end. With
the adjustment ring steel to position 0 (zero),
screw ends are flush with inner side of fixed
pulley half when tighten.

CAUTION: If any of these screws is not flush
with inner side of sliding pulley, bushings will
worn unequally.

Assemble driven pulley components by reversing
the disassembly procedure.

Cam

Coat cam no. 11 interior with Loctite antiseize lu-
bricant (P/N 293 800 070).

INSTALLATION

Countershaft

Apply Loctite antiseize lubricant (P/N 293 800 070)
on countershaft splines.

CAUTION: Always apply antiseize lubricant on
the countershaft before final pulley installation
to prevent a possible seizing up between pulley
and countershaft.

Should installation procedure be required, refer to
BRAKE then look for BRAKE DISC and COUNTER-
SHAFT BEARING ADJUSTMENT.

Reinstall the pulley on the countershaft no. 5 by
reversing the removal procedure.

ADJUSTMENT

Cam

Make sure to install proper cam no. 11. Refer to
TECHNICAL DATA.

Cam angle is identified on cam.

A30D0XA

NOTE: For high altitude regions, a service bulletin
will give information about calibration according to
altitude.

Spring

To check spring preload adjustment, use the
spring scale hook (P/N 529 006 500) and a spring
scale.

529 006 500

Remove drive belt.

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Section 08 DRIVE SYSTEM
Subsection 03 (DRIVEN PULLEY)

Install the hook on the sliding half. Preventing
fixed half from turning, pull sliding half with the
spring scale perpendicularly with pulley axle.

Take first measurement when sliding half begins
to turn. Rotate sliding half to 10 mm (3/8 in) of
rotation. Hold spring scale at this position. Slow-
ly release tension from spring scale and take sec-
ond measurement when sliding half begins to re-
turn. Spring preload is the average measurement
between these 2.

First measurement

(when opening)

Second measurement

(when closing)

Spring

preload

EXAMPLE:

3.8 kg (8.4 lb)

(when opening)

3.4 kg (7.5 lb)

(when closing)

3.6 kg (8 lb)

actual
spring

preload

529 006 500

A01B18A

TYPICAL
1. Pull for the first measurement
2. Release slowly for the second measurement

To adjust spring preload, relocated spring end in
cam, moving it clockwise to increase the preload
and counterclockwise to decrease it. Refer to
TECHNICAL DATA.

NOTE: If the spring preload can not be adjusted,
try to relocate the other end of spring in sliding
pulley (holes A, B or C).

A18C0AA

3 21

LETTERS AND NUMBERS SHOWN IN ILLUSTRATION ARE
ACTUAL LETTERS AND NUMBERS EMBOSSED ON PARTS

NOTE: Always recheck torsional preload after ad-
justing.

Pulley Alignment and Drive Belt Height

Refer to PULLEY DISTANCE AND ALIGNMENT
and DRIVE BELT to perform adjustments.

CAUTION: Drive belt and pulley adjustments
must always be checked whenever pulleys
have been removed, replaced or disassem-
bled.

348

mmr2005-088

Section 08 DRIVE SYSTEM

Subsection 04 (PULLEY ALIGNMENT)

PULLEY ALIGNMENT

SERVICE TOOLS

Description

Part Number

Page

alignment bar........................................................................ 529 035 831 ......................................... 350
driven pulley opening tool..................................................... 529 017 200 ......................................... 349

GENERAL

Pulley alignment must be checked out to ensure
the highest efficiency of the transmission system.
Furthermore, optimum drive belt operation and
minimal wear will be obtained only with proper
pulley alignment.

CAUTION: Before checking pulley adjustment,
the rear suspension must be mounted on the
vehicle and track tension/alignment must be
done. Always check pulley adjustment after
suspension is adjusted.



WARNING

Failure to correctly perform pulley alignment
may cause the vehicle to creep forward at
idle.

All Pulley Alignment Specifications Refer to:

X = Distance between straight bar and drive pulley
fixed half edge, measured between pulleys.

Y = Distance between straight bar and drive pulley
fixed half edge, measured at the end of straight
bar.

MEASURING PROCEDURE

Remove guard, drive belt and air silencer.

Loosen lock nut.

A33D0FA

1. Lock nut

Untighten torque rod using a long hexagonal key.

A33D0GA

TYPICAL

1. Torque rod
2. Hexagonal key

By using driven pulley opening tool (P/N 529 017
200) push the sliding half to open the driven pulley.

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349

Section 08 DRIVE SYSTEM
Subsection 04 (PULLEY ALIGNMENT)

529 017 200

A33D0HA

DRIVEN PULLEY OPENING TOOL

Measure the distance between both pulleys to
know if the engine and the frame are positioned
correctly. The distance pulley is not adjustable on
the REV serie vehicles.

A33D1OA

TYPICAL
Z = Distance between both pulleys

PULLEY DISTANCE

MODEL

DISTANCE

Formula RER

17.5 mm (.689 in)

Formula VSA and

VSA RER

19 mm (.748 in)

HPV VSA

20 mm (.787 in)

Insert the alignment bar (P/N 529 035 831)into the
opened driven pulley.

A33D0IA

ALIGNMENT BAR IN PULLEYS

Always measure distances X and Y from the far-
ther straight bar side (including its thickness to the
fixed half edge).

A33D1OB

TYPICAL
1. Straight bar

The distance Y

must

exceed distance X to com-

pensate for the twist due to the engine torque.

DRIVE PULLEYS ALIGNMENT

OFFSET mm (in)

Y-X

MODEL

± 0.50 (.020)

Formula RER

33.4

(1.315)

0.46

(.018)

maximum

Formula VSA or Formula

VSA RER

37.0

(1.456)

0.82

(0.032)

maximum

HPV VSA

37.0

(1.456)

0.82

(0.032)

maximum

If an alignment is necessary, see ALIGNMENT
PROCEDURE below.

350

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