General; Removal; Disassembly - BOMBARDIER ski-doo Tundra Scandic 2004 Series Shop Manual

GENERAL

Some drive pulley components (return spring,
ramp) can be changed to improve vehicle perfor-
mance in high altitude regions. A Service Bulletin
will give information about calibration according to
altitude.
CAUTION: Such modifications should only be
performed by experienced mechanics since
they can greatly affect vehicle performance. Ver-
ify spring specifications before installation. Do
not only refer to the spring color code.
NOTE: TRA drive pulley stands for Total Range
Adjustable drive pulley.
WARNING
Any drive pulley repairs must be performed by
an authorized Bombardier snowmobile dealer.
Sub-component installation and assembly tol-
erances require strict adherence to procedures
detailed.

REMOVAL

30,31, Conical Spring Washer and
Screw
Secure holder (P/N 529 035 674) over a sliding half
tower.
TYPICAL
1. Sliding half tower
MMR2004_123_05_03A.FM
Section 05 TRANSMISSION
Subsection 03 (DRIVE PULLEY)
WARNING
Never use any type of impact wrench at drive
pulley removal and installation.
WARNING
The drive pulley assembly is a precisely bal-
anced unit. Never replace parts with used
parts from another drive pulley assembly.
Remove retaining screw. Discard conical spring
washer.
To remove drive pulley ass'y and/or fixed half from
engine, use puller (P/N 529 022 400).
CAUTION: This pulley has metric threads. Do
not use imperial threads puller. Always tighten
puller by hand to ensure that the drive pulley
has the same type of threads (metric vs imperi-
al) prior to fully tightening.
To Remove Drive Pulley Ass'y
Retain drive pulley with clutch holder.
Install puller in pulley shaft then tighten.

DISASSEMBLY

1,2, Screw and Ring Gear
CAUTION: Retaining screws must be heated be-
fore disassembly. Heating temperature must
not exceed 150°C (300°F).
05-03-11