40 _____________________________________________ OPERATORS MANUAL
ENGLISH
TENSION CHECKING AND ADJUSTING
Chain driven models have a duplex or triplex chain in oil bath.
Check the chain tension and the oil amount in chain case/gearbox regularly.
Checking the chain tension
Checking the chain tension will be done by measuring the free movement from driven
pulley: longer free movement - more loosen chain.
Remove the belt guard, draw a mark on the driven pulley by a pen.
Rotate the driven pulley in one direction so that the snowmobile starts to move.
Check the location of your mark. Rotate the driven pulley in other direction until the
snowmobile starts to move in another direction. Measure the free movement length.
The chain tension is right, when driven pulley moves 5-10 mm. (Chain moves if it
is pressed e.g. with a screw driver through the oil filling hole.)
Adjusting
The chain is tightened when the adjusting screw is screwed down.
NOTE: Always turn the screw by hand as far as possible.
Controlling chain tension
Adjusting screw
Lock pin
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