6.18
CLUTCHING
9923412 - 2012 Sportsman 400/500 and EFI Tractor Service Manual
© Copyright 2011 Polaris Sales Inc.
Bearing Inspection
1. Rotate non-braking clutch bearing in both clockwise
and counter-clockwise directions. The non-braking
bearing should rotate both directions on the shaft with
only a slight amount of drag.
2. Verify there is no binding or rough spots. If problems
are noted in either direction, continue with
disassembly.
Clutch Inspection
NOTE: Remove cover, spring, and spider following
instructions for drive clutch removal, then proceed
as follows:
1. Remove the moveable sheave spacer (1) and the
thrust washer (2). Visually inspect the washer for
damage.
2. Measure the thickness and compare to specification.
Replace if worn or damaged.
3. Remove the moveable clutch sheave.
4. Lift bearing (3) and thrust washer (4) off shaft.
Replace as an assembly if worn, damaged, or if
problems were noted.
Thrust Washer Thickness
Standard: .030” (.76mm)
Service Limit: .025” (.64mm)
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