5. Inspect surface of shaft for pitting, grooves, or
damage. Measure the outside diameter and compare
to specifications. Replace the drive clutch assembly
if shaft is worn or damaged.
Shaft Diameter:
Standard: 1.3745 - 1.375
Service Limit: 1.3730"
6. Visually inspect PTFE thrust washer for damage.
Measure the thickness and compare to specification.
Replace if worn or damaged.
PTFE Washer Thickness
Standard: .030" (.76mm)
Service Limit: .025" (.64mm)
= In. / mm.
= In. / mm.
9923412 - 2012 Sportsman 400/500 and EFI Tractor Service Manual
© Copyright 2011 Polaris Sales Inc.
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 sheave surfaces with a 3M
Scotch-Brite Pad if needed.
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.
CLUTCHING
6
6.19