6.25
CLUTCHING
6
9923412 - 2012 Sportsman 400/500 and EFI Tractor Service Manual
© Copyright 2011 Polaris Sales Inc.
4. Visually inspect PTFE thrustwasher for damage.
Measure the thickness and compare to specification.
Replace if worn or damaged
Moveable Sheave Bushing Inspection
Inspect the Teflon coating (arrow) on the moveable
sheave bushing. Inspect BOTH sheaves for signs of wear,
grooving or cracking. De-glaze surfaces with a 3M pad if
needed.
One-Way Clutch Inspection (EBS Drive
Clutch)
1. Rotate one-way clutch clockwise (as viewed from the
cover plate side). The clutch should rotate on the
shaft with only slight amount of drag. Verify there is
no binding or rough spots. When rotated
counterclockwise, the clutch should lock to the shaft
without slipping. If problems are noted in either
direction, continue with disassembly.
PTFE Washer Thickness
Standard: .030” (.76mm)
Service Limit: .025” (.64mm)
Moveable Sheave Bushing Inspection:
Replace the cover bushing if more brass than
Teflon is visible on the bushing. Refer to bushing
replacement in this chapter.
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