BOMBARDIER 1996 Ski-doo MX Z440 Handbook page 242

Section 05 TRANSMISSION SYSTEM
Proper belt deflection and alignment are extremely important. Included is a page on proper
alignment procedures and deflection measurement methods for your use.
Do not forget about the torque limiter rod on Formula models. This bolt is located between the
and center to center distances have been set.
AOOC45S
TYPICAL
1. Jam nut
2. Adjuster
3. Allen screw with jam nut
The driven pulley has one, two or three (depending upon the year) set screws on the fixed half that
are used for setting belt deflection. These 3 mm Allen screws can be moved in or out to open or
close the sheaves to lower or raise the drive belt in the driven pulley to achieve the correct
deflection.
It is best to accurately align the pulleys and then shim the driven clutch tight. Some feel it is better
to let it "float" and align itself. But this doesn't happen in a dynamic situation when there is load on
the belt. If you have a lot of float in the driven and you back off the throttle and the pulley misaligns,
when power is applied again, the pulley will stay misaligned because of the force on the countershaft.
Shimming the driven pulley tightly to the jackshaft bearing also helps to positively position the
05-38
after
the proper alignment
3