STV32 · STV36 · STV40, WSM CLUTCH
2-S6
Clutch Release Fork
1. Remove the set spring (1) from clutch release fork (2) and
release hub.
2. Remove the release bearing (3) with release hub (4).
(When reassembling)
A Set the clutch release fork (2) and release hub (4) with set
spring (1) in the correct direction.
[4] SERVICING
Backlash between Clutch Disc and Clutch Shaft
1. Mount the clutch disc onto the propeller shaft.
2. Hold the propeller shaft so that it does not rotate.
3. Slightly move the disc and measure the displacement around
disc edge.
4. If the measurement exceeds the allowable limit, replace clutch
disc.
Clutch Disc Wear
1. Measure the depth from clutch disc surface to the top of rivet
at least 10 points with a depth gauge.
2. If the depth is less than the allowable limit, replace the disc.
3. If oil is sticking to clutch disc, or disc surface is carbonized,
replace the clutch disc.
(1) Set Spring (3) Release Bearing
(2) Clutch Release Fork (4) Release Hub
0000007519E
Displacement around
disc edge
Allowable limit
2.0 mm
0.079 in.
0000004484E
Disc surface to rivet top
(Depth)
Allowable limit
0.3 mm
0.012 in.
0000004485E
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