Polaris Trail Boss 330 Quadricycle - Manual (Page 85)

83
MAINTENANCE AND LUBRICATION
Drive Chain
Always inspect the drive chain before operating the vehicle. Check for
damaged or missing o-rings or damaged rollers. Check for correct slack
adjustment. Maintain the stone guard-to-rear sprocket clearance at 3
mm. Lubricate the outer surfaces of the roller regularly.
Lubricate the drive chain as outlined in the Lubrication Chart on page
65.
High pressure water may damage components. Do not use high
pressure water. See page 99.
Rear Drive Chain Slack
Adjusting or operating the vehicle with improper rear drive chain slack
can result in severe damage to the transmission and drive components.
Always make sure the slack is within the stated specifications.
Check the amount of chain slack
in three different locations by
moving the vehicle slightly
forward. Measure the chain slack
at the tightest of the three
positions. At this point the chain
should have 4.8-9.5 mm
deflection.
Use the following procedure if
adjustment is required.
1. Loosen the chain guide.
2. Loosen the two eccentric
locking bolts (1).
3. Loosen the caliper mounting
bolt located on the left side
of the swing arm.
4. Insert a pin punch (2)
through the sprocket hub
and into the eccentric
housing.
4.8 - 9.5 mm
1
2
1