Ski-Doo FORMULA III, Shop Manual

Page: 176 / 356

Section 05 TRANSMISSION
Sub-Section 01 (DRIVE BELT)
05-01-2
Before checking the belt deflection, ensure vehi-
cle has the proper belt (Refer to the application
chart).
Adjust pulley distance and alignment. Refer to 05-
04 PULLEY DISTANCE AND ALIGNMENT.
To obtain maximum vehicle performance, the belt
tension must be adjusted according to specifica-
tions shown in the accompanying chart.
† For reference only
To Check Tension
Position a reference rule on drive belt.
Wooden Stick and Spring Scale Method :
1. Mark specified deflection
Using spring scale and stick, apply specified force
on drive belt halfway between pulleys as shown.
1. Force
2. Read deflection here
3. Reference rule
Or use the belt tension tester (P / N 414 3482 00).
1. Lower O-ring
2. Upper O-ring
3. Force (read down)
4. Deflection (read up)
1. Slide lower O-ring of deflection scale to speci-
fied measure.
2. Slide upper O-ring to zero on the force scale.
3. Apply pressure until lower O-ring is flush with
edge of rule and read force on the upper scale
at top edge of O-ring.
1. Upper O-ring
2. Force
3. Deflection
4. Reference rule
5. Lower O-ring
DEFLECTION ADJUSTMENT
All S-Series and F-Series
Adjust pulley distance according to specification,
refer to PULLEY DISTANCE AND ALIGNMENT
05-04, then adjust drive belt deflection using Allen
screw, as shown.
To increase deflection : turn Allen screws clock-
wise .
To decrease deflection : turn Allen screws coun-
terclockwise .
MODEL
DEFLECTION
mm (in)
FORCE
kg (lb)
HEIGHT†
OVER
DRIVEN
PULLEY
All
32
±
5
(1-1/4
±
13/64)
6.8 (15)
0 - 1.5 mm
(0 - 1/16’’)
A00D05A
1
A00D06A
1
2
3
A00C07A
1
A00D08A
2
1
3
4
5