Drive Belt Removal/Inspection - Polaris 2009 Trail Boss 330 Service Manual

CLUTCH
NOTE: At least one shim must remain between the
inner and outer sheave of the driven clutch. If proper
belt deflection cannot be obtained, measure drive belt
width, length, and center distance of drive and driven
clutch, outlined in this section; all have an effect on
belt deflection.
DRIVE BELT
REMOVAL/INSPECTION
1. Remove outer PVT cover as described in PVT
Disassembly.
2. Mark drive belt direction of rotation so that it can
be installed in the same direction.
Normally positioned so part numbers are easily
read.
3. To remove drive belt: apply brake, pull upward
and rearward on belt to open driven clutch
sheaves, pull out and down on belt to slip over the
driven clutch outer sheave.
6.14
New 1.174 - 1.188" (2.98-3.02 cm)
Wear Limit 1.125" (2.86 cm)
4. Measure belt width and replace if worn severely.
NOTE: Generally, belt should be replaced if clutches can
no longer be adjusted to provide proper belt
deflection.
G
The top edges have been trimmed on
some drive belts. It will be necessary
to project the side profiles and
measure from corner to corner.
G
Place a straight edge on each side of
the drive belt.
G
Place another straight edge on top of
belt.
G
Measure the distance where the side
straight edges intersect the top, as
shown in the illustration below.
5. Inspect belt for loose cords, missing cogs, cracks,
abrasions, thin spots, or excessive wear.
Replace if necessary.
6. Inspect belt for hour glassing (extreme circular
wear in at least one spot and on both sides of the
belt). Hour glassing occurs when the drive train
does not move and the drive clutch engages the
belt.
10" +.1 / -.05
Belt Nominal Length - 40.875"± 3/16
7. Measure belt length with a tape measure around
the outer circumference of the belt. Belts which
Projected
Belt
Width
Belt Width:
Center
Distance
Clutch Center Distance -
(254 +2.5 / -1.3mm)
(103.8 cm ± .48 cm)