Belt Inspection; Belt Installation; Pvt Break-In (Drive Belt / Clutches); Clutch Alignment - Polaris A12MH46AX Service Manual

CLUTCHING

Belt Inspection

1. 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.
2. Inspect belt for loose cords, missing cogs, cracks,
abrasions, thin spots, or excessive wear. Compare
belt measurements with a new drive belt. Replace if
necessary.
3. Belts with thin spots, burn marks, etc., should be
replaced to eliminate noise, vibration, or erratic PVT
operation. See the Troubleshooting Chart at the end
of this chapter for possible causes.

Belt Installation

1. Loop belt over the drive clutch and over top of the
driven sheave.
2. While pushing down on top of belt, turn the back or
moveable driven sheave clockwise.
3. The belt then should be able to be pushed down into
and between the sheaves.
Be sure to position belt so part number is easily read.
6.10
9923412 - 2012 Sportsman 400/500 and EFI Tractor Service Manual
© Copyright 2011 Polaris Sales Inc.

PVT Break-In (Drive Belt / Clutches)

A proper break-in of the clutches and drive belt will ensure
a longer life and better performance. Break in the clutches
and drive belt by operating at slower speeds during the 10
hour break-in period as recommended (see Chapter 3
"Engine Break-In Period" for break-in example). Pull only
light loads. Avoid aggressive acceleration and high speed
operation during the break-in period.

CLUTCH ALIGNMENT

Clutch Alignment Tool Use
Clutch alignment is controlled by the number of washers
that are placed behind the driven clutch on the
transmission input shaft. Adding washers behind the
driven clutch will move the drive belt toward the moveable
sheave of the drive clutch.
behind the driven clutch will move the drive belt toward the
stationary sheave of the drive clutch.
1. Remove the seat.
2. Remove the LH side panel and footwell to gain access
to the outer PVT cover (see Chapter 5 for removal).
3. Loosen the hose clamp and remove the PVT air outlet
duct hose from the outer PVT cover.
4. Remove all outer PVT cover screws and remove the
cover.
5. Mark the drive belt direction of rotation and remove
drive belt (see "Drive Belt Removal").
6. Install the Clutch Alignment Tool.
CLUTCH ALIGNMENT TOOL
PA-49011
Removing washers from