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SECTION 03 TRANSMISSION
SUB-SECTION 03 (DRIVE PULLEY)
_
CAUTION: This model
is
equipped with drive
." pulley of metric dimensions.
•
WARNING: Drive pulley re1jairs that include any
disassembly or assembly procedures must be
performed by
an
authorized Bombardier dealer, or
other
such
qualified person. Sub-colTlponent installa-
tion and assembly tolerances require
strict
adher-
ence to procedures detailed.
REMOVAL
1,4,5,
Outer half
&
Governor cup
Lock the crankshaft by using one
of
the following
method:
Insert the crankshaft locking tool PIN 420876 640 into
the impulse hole of the engine. Slowly rotate the
crankshaft until it locks
into
position
.
_
CAUTION: Do not use any type of pin other
." than the tool PIN
420 876 640.
(TYPICAL)
Or:
Crankshaft
locking
tool
Impulse
hole
Remove spark plug(s) then bring P.T
.O.:
piston at
T.D.C. position.
Rotate drive pulley 45° clockwise then insert enough
starter rope
into
cylinder to fill it completely .
•
WARNING: Spring pressure
can
force assembly
apart;
therefore, it is imperative that
the gover-
nor cup be held firmly during governor retaining bolt
removal. Use drive pulley retainer PIN
529001700.
PAGE 202
9,
Inner half
If
it
is necessary to remove inner half, use drive pulley
puller no. 529 002 800, 529 003 000
.
t
(529003000)
Metric threads
"' :
:::::::::
: ::::::::::::::;:.
(529002800)
_
CAUTION: This pulley has metric threads. Do
." not use
standard
thread puller.
To block
engine crankshaft:
Remove starter rope blocking piston, then reblock
piston after having turned 45°
counter-clockwise
from
T.D.C. position; or install crankshaft locking
tool.
To remove inner half:
Install
puller in pulley shaft tighten, at the same time
knock slightly on puller head to disengage pulley from
engine crankshaft.
DISASSEMBL Y
_
CAUTION: Do not disassemble counterweights
." unless replacement is necessary.
CLEANING
5,9,
Inner & Outer half
Clean pulley faces and shaft with fine steel
wool
and
dry cloth
.
Clean outer half bushing with clean
dry cloth.
9,
Inner half
&
crankshaft
Using
cleaner
such as acetone, clean
crankshaft
tapered end and the taper
inside
the
inner
half
of
the
drive pulley
.
•
WARNING: This
procedure
must be performed
in
a
well ventilated area.
_
CAUTION: Avoid
contact
between crankshaft
."
seal
and
acetone
because damage may occur.
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