Drive Chain; General; Silent Chain; Chain Attachment - BOMBARDIER ski-doo Tundra Scandic 2004 Series Shop Manual

DRIVE CHAIN

GENERAL

Bombardier drive chains exist in 2 types, for proper
use refer to TECHNICAL DATA.
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1. 1/2 in single
2. 3/8 in silent chain

SILENT CHAIN

There are 2 types of silent chain. One is 11-plates
wide and the other is 13-plates wide (stronger).
Do not interchange sprockets. Fit chain on sprock-
ets to make sure using right ones according to
width. Refer to TECHNICAL DATA.
NOTE: No work (separation, lengthening) can be
done on the silent chain type.

CHAIN ATTACHMENT

When joining chain ends, the open end of the cir-
clip must be on opposite side of chain rotation.
The circlip should also be facing the outer side of
chaincase.
WARNING
Always ensure that the connecting link circlip
is in good condition and is properly secured.
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Section 05 TRANSMISSION
Subsection 09 (DRIVE CHAIN)
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TYPICAL
1. Rotation

CHAIN SEPARATION

When separating an endless chain, always use a
chain bearing pin extractor. Also, make sure to re-
move one complete link.
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NOTE: Chain connecting link should only be used
to lengthen or shorten a chain when changing the
sprocket(s) for one(s) with a different number of
teeth. A stretched chain must never be shortened
because the chain pitch has changed (increased)
and will not properly match the sprocket pitch,
causing premature wear.
NOTE: Refer to TECHNICAL DATA, for chain length
according to gear ratio of each specific vehicle.
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