Clutch Disassembly and Inspection (Fig. 19)
Insert clutch alignment tool (see Special Tools) in en-
gine flywheel pilot bearing hole to keep clutch disk from
falling off (Fig. 20).
3. Install pressure plate. Install and tighten six (6) cap
screws and lock washers a little at a time, working in a
diagonal sequence. Torque screws from 5 to 7 ft--lb (7
to 9 N--m). Remove alignment tool from flywheel bear-
ing after pressure plate is installed.
1.
2.
Loosenpressureplatecapscrews(item10)inadiag-
onal sequence.
Clutch Alignment Tool
3.
Remove cap screws, lock washers (item 11) and
pressure plate (item 12), then slide out the alignment
tool and remove clutch disk (item 13). Note orientation
of clutch disk as it is removed (Fig. 21).
4.
wear and uneven height. Replace if wear is evident or if
height difference exceeds 0.020 in. (0.5 mm).
Inspect diaphragm spring end of pressure plate for
5.
or change.
Check pressure plate surface for wear, cracks or col-
Figure 20
6.
sure plate if rivets are loose.
Checkstrapplaterivetsforlooseness.Replacepres-
Clutch Disc
7.
tact, deterioration due to seizure and lubricant contami-
nation. Replace clutch disk if damaged.
Checkclutchdiskfacingforlooserivets,unevencon-
Engine
Flywheel
Side
Pressure
Plate Side
8.
Measure rivet sink and replace clutch disk if out of
specification (Fig. 23).
Clutch disk thickness
standard value
0.307 to 0.339 in. (7.8 to 8.6
mm)
Figure 21
Clutch disk rivet sink
0.012 in. (0.3 mm) minimum
9.
Check for torsion spring play or damage. Replace
Pressure plate
clutch disk if necessary.
10.Install
clutch disk on transaxle main shaft. Make sure
clutch slides freely on splines of shaft. Check for exces-
sive play in rotating direction.
11.
Inspect flywheel surface for stepped wear, streaking
Diaphragm spring
Torsion spring
or seizure. Replace if necessary. Clean any oil or rust
fromflywheelsurfacewithlightabrasive.Checkflywheel
runout and replace if runout exceeds 0.005 in. (0.13
mm).
Figure 22
12.Inspect
Replace pilot bearing if necessary.
flywheel pilot bearing for wear or damage.
Rivet sink
Installing Clutch Disk and Pressure Plate
1.
use a brush to rub it in. Wipe off any excess grease.
Apply a coating of grease to clutch disk spline, then
2.
Use clutch alignment tool (see SpecialTools) toposi-
tion clutch disk to engine flywheel.
Figure 23
Workman HD Series
Page 6 -- 21
Drive Train
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