82410·
82710·
82910 WSM, 12271
SERVICING
2 CLUTCH
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.
00000F20030
Displacement around
disc edge
Disc surface to rivet top
(Depth)
Allowable limit
Allowable limit
2.0mm
0.079
in.
0.3mm
0.012
in.
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12010520140
Pressure Plate
Flatness
1.
Place a straightedge on the pressure plate and measure
clearance with a feeler gauge at several points.
2. If the clearance exceeds the allowable limit, replace it.
3.
When the pressure plate
is
worn around its outside and its inside
surface only is
in
contact with the straightedge, replace even if
the clearance is within the allowable limit.
00000F20040
Clearance between
0.2mm
pressure plate and Allowable limit
0.008
in.
straightedge
(A) Inside
(B) Outside
00000520040
11790F20010
Checking
Pressure Plate
and
Diaphragm
1.
Check the pressure plate and if scratched on its surface, correct
with sandpaper or replace it.
2. Check the diaphragm for cracke and scratches. If defects are
found, replace it.
12010520150
2-S9
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