Ski-Doo 2005 MACH Z, Shop Manual

Page: 224 / 343

Section 06 DRIVE SYSTEM
Subsection 03 (DRIVEN PULLEY)
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.
Install the hook on the sliding half no. 12 . Prevent-
ing 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)
2
=
Spring
preload
EXAMPLE:
3.8 kg (8.4 lb)
(when opening)
+
3.4 kg (7.5 lb)
(when closing)
2
=
3.6 kg (8 lb)
actual
spring
preload
529 006 500
A01B18A
1
2
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).
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