Pulley Alignment - BOMBARDIER 1983 Shop Manual

IP •
c
The offset adjustment is a factor that will affect the ef-
ficiency of the transmission system.
Proper offset adjustment will allow the drive belt to
operate at its highest speed and will reduce wear to a
minimum.
O
NOTE: Before pulley alignment, always check drive
belt tension. Refer to section 03, sub-section 02
"Drive Belt".
OFFSET MEASUREMENT
All models, except Blizzard and Everest models must
have 34 mm (1
11/32")
offset.
O
NOTE: As illustrated below, a tolerance up to 1.5
mm
(1/16")
is allowed to compensate for the twist
due to the drive pulley torque. Refer to the illustration.
__ .j.11---
34 mm
(111/32")
.','-:- 1.5
mm
11116")
I
Maximum tolerance
I- 34 mm (1
11/32")
Square bar
Length
48
cm
(19
inch)
The Blizzard 9700 model must have 34.5 mm (1
23/64")
offset.
The Blizzard 5500 MX and Everest 500/E/L/C models
must have 32.5 mm (1
9/32")
offset.
Because of the floating type driven pulley, th e offset
must be measured after pushing the driven pulley against
the bearing flange.
SECTION 03 TRANSMISSION
SUB-SECTION
05
(PULLEY ALIGNMENT)
PULLEY ALIGNMENT
O
NOTE: A tolerance up to 1.5 mm
(1/16")
is allowed
on the offset measurement to compensate for the
twist due to the drive pulley torque. Refer to the illustra-
tion.
--.~I
I -
32.5 mm 11
9/32 ")
~ ~
1.5
mm
(1/16")
Push against
bearing flange . .
before measuring
I
Maximum tolerance
I
I
I- 32.5
mm
119/32" )
Square bar
Length 48 cm 119 inch)
OFFSET ADJUSTMENT
Elan-Spirit
Two methods can be used to adjust offset:
- Drive pulley alignment (first method):
If drive pulley is too far in , remove drive pulley and add
shim(s) on crankshaft. Shim PIN 504 0504 00 (,032"
thickness) .
_ CAUTION: Never use more than 5 shims on crank-
y
shaft,
•
WARNING: Always torque drive pulley bolt within
specifications. (See Technical Data),
- Driven pulley alignment (second method):
If drive pulley is too far out, add shim(s) between frame
and chaincase. Shim PIN 504050400 (,032" thickness).
Out
•
Shim Is) added
between frame
and cha in case
Shimls) added
on crankshaft
PAGE 185