Dynojet Snowmobile Dynos: Installation Guide - Manual (Page 11)

Document #98260100 1 - 7
Dyno Maintenance
The dyno should get a general inspection every 2
weeks depending on the number of runs made.
This inspection should include:
Checking all bolts to ensure they are tight.
Ensure the sprockets and driver assembly is
in good working condition.
Examine the plastic driver wheels to ensure that
they are in good shape and do not show
excessive wear.
The chain guards should be removed and the
chain tension checked every 300 runs. (Refer to
the pictures and the text below)
There is a red arrow on each of the arms. This
is the location at which the chain tension is
checked. Use a pull scale to apply 12 pounds on
the chain pulling the chain up. Measure from
the bottom inside of the chain guide to the top of
a link in the chain. The chain should be 1 3/16
inches from the bottom of the guide.