Pulley Distance And Alignment; Pulley Distance Adjustment Method; Pulley Alignment Specification; Pulley Alignment Methods - BOMBARDIER Skandic 377 IR Shop Manual

SECTION 03 TRANSMISSION
SUB-SECTION 05 (PULLEY DISTANCE AND ALIGNMENT)
PULLEY DISTANCE AND ALIGNMENT
GENERAL
The pulley distance we will refer to, in this section, is the
space separating the drive and driven pulley outside
diameters.
This basic distance is provided as an assembly guide and
indicates the dimensions between which satisfa ctory belt
deflection will be obtained.
Both pulley distance adjustment and pulley alignment must
be carried out to ensure the highest efficiency of the
transmission system. Furthermore, the high drive belt
operation and minimum wear will be obtained only with
proper pulley alignment.
Drive belt deflection
O NOTE: When pulley distance and alignment are ad-
justed to specifications, adjust drive belt deflection in
accordance with section
03-02.
A fter adjustment checks
~ CAUTION: This section deals mainly with adjust-
. . ment procedures. For complete assembly require-
ments, refer to the proper ENGINE or TRANSMISSION
installation section.
ELAN 250
Shims
44.45
~ ~5
(1
3/4"
~
S16)
Driven pulley
movement
Dri ven pulley
movement
+
-+t
~
34 mm (1
11132")
~I-c
1.5
mm
(1/16")
max.
101.
Pulley distance specification
44.45 mm
~
?g
(1
3/4"
~ ggg)
Pulley distance adjustment method
With the threaded rod and nut located between chaincase
and frame, shift chaincase to obtain the specified distance.
Pulley alignment specification
34 mm ±75 (1
11 /32"
±
1132).
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.
Pulley alignment methods
Drive pulley alignment:
If drive pulley is too far in, remove drive pulley and add
shim(s) on crankshaft. Shim PIN 504050400,0.81 mm
(032") thickness.
~
CAUTION: Never use more than 5 shims on
. . crankshaft.
•
WARNING: Always torque drive pulley bolt
within specifications. (See section 03-03).
Driven pulley alignment:
If driven pulley is too far in, add shim(s) between frame
and chaincase. Shim PIN
504 0504 00, 0.81
mm
(032")
thickness.
SKANDIC 377, CITATION 3500
41.3
~
6
(1 5/8" .::
~8)
~f.c 1 . 5
mm
(1 /1 6")
max . tol. I
V
34
mm
(1
11 /32")
....
l-----I.~
Driven pulley
movement
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