Polaris 2005 SPORTSMAN 500 Servise Manual page 179

2. Install adapter reducer (Item 9).
3. From outside of clutch cover, insert removal tool
(Item 3) into cover bushing.
4. With inside of cover toward vise, slide cover onto
puller.
5. Install nut onto puller rod and hand tighten. Turn
puller barrel to increase tension as needed.
6. Turn clutch cover counterclockwise on puller rod
until bushing is removed and cover comes free.
7. Remove nut from puller rod and set aside.
8. Remove bushing and bushing removal tool from
puller. Discard bushing.
EBS Drive Clutch Cover Bushing Installation
1. Apply Loctitet 609 evenly to bushing bore in
cover.
2. Working from inside of cover, insert new bushing
and bushing installation tool into center of clutch
cover.
3. With main adapter on puller, insert cover onto
puller rod, placing outside of cover toward vise.
4. Install nut on rod and hand tighten. Turn puller
barrel to apply more tension if needed.
5. Turn clutch cover counterclockwise on puller rod
until bushing is seated.
6. Remove nut from puller rod. Take installation tool
and clutch cover off rod.
STOP PLATE
DISASSEMBLY/INSPECTION -
EBS Driven Clutch Operation
The late model EBS driven clutch provides the same
engine braking abilities as the earlier EBS driven
clutch.
One--way Clutch
Downhill
Belt Rotation
When the ATV is moving downhill the drive train turns
the driven clutch, belt, and one way clutch in the
direction of engine rotation.
clutch (see exploded view of drive clutch) exceeds the
drive clutch rotational speed, the one--way clutch
locks to the drive clutch shaft and engine braking
occurs. Essentially the driven clutch has become the
"driving" clutch. The stop plate (bow plate) that is fixed
to the transmission shaft rotates in the pocket of the
sheave, allowing the stationary sheave to rotate with
the moveable sheave as the rollers move to the other
side of the ramp, providing instant EBS braking.
Engine braking (EBS) continues until the drive clutch
speed exceeds the one--way clutch speed, or until the
throttle is applied and the engine reaches clutch
engagement speed, lifting the belt off of the one--way
clutch.
CAUTION: The driven
disassembled from the helix end to reduce spring
pressure. Review all information below before
proceeding.
CLUTCHING
Drive Clutch
Driven
Stop Plate
Drive
When the one--way
clutch must be
6.27