Mitsubishi 380. Manual — part 984
CLUTCH
CLUTCH OVERHAUL
21B-5
>>D<< CLUTCH DISC/CLUTCH COVER INSTALLATION
AK204214
Flywheel
Clutch disc
Clutch disc
guide
Clutch cover
AB
1. Apply Mitsubishi grease to the clutch disc splines and rub it
in the splines with a brush.
Specified grease:
Mitsubishi Part No. 0101011 or equivalent
2. Use the clutch disc guide to position the clutch disc on the
flywheel.
3. Install the clutch cover onto the flywheel.
.
>>E<< VALVE PLATE SPRING/VALVE PLATE
INSTALLATION
AK201696
AK201696AF
Valve plate spring
Release cylinde
Valve plate
Set the spring’s large diameter side to the valve plate side, and
install the valve plate spring and valve plate.
INSPECTION
M1212001100315
.
CLUTCH COVER
AK403603AB
Diaphragm spring
1. Check the diaphragm spring end for wear and uneven
height. Replace if wear is evident or height difference
exceeds the limit.
Limit: 0.5 mm
2. Check the pressure plate surface for wear, cracks and
discoloration.
3. Check the rivets of the strap plate for looseness. If loose,
replace the clutch cover.
.
CLUTCH
CLUTCH OVERHAUL
21B-6
CLUTCH DISC
CAUTION
Don't clean the clutch disc in a cleaning solvent.
1. Check the facing for loose rivets, uneven contact, evidence
of seizure, or deposited oils and greases. If defective,
replace the clutch disc.
AK300248
Rivet sink
Torsion spring
AB
2. Measure the rivet sink and replace the clutch disc if it is
below the limit.
Minimum limit: 0.3 mm
3. Check the torsion spring for play and damage. If defective,
replace the clutch disc.
4. Combine the clutch disc with the input shaft and check for
sliding condition and play in the rotating direction. If poor
sliding condition is evident, clean, reassemble, and recheck.
If excessive play is evident, replace the clutch disc and/or
input shaft.
.
CLUTCH RELEASE BEARING
CAUTION
Release bearing is packed with grease. Do not wash it in a
cleaning solvent.
1. Check for seizure, damage, noise or improper rotation.
2. Check for wear on the surface which contacts the diaphragm
spring.
3. Check for wear on the surface which contacts the release
fork. If abnormally worn, replace.
.
RELEASE FORK
If the surface which contacts the bearing is abnormally worn,
replace.
.
RELEASE FORK SHAFT
Check the release fork shaft for bend and wear, and replace if
necessary.
CLUTCH RELEASE CYLINDER
CLUTCH OVERHAUL
21B-7
CLUTCH RELEASE CYLINDER
DISASSEMBLY AND REASSEMBLY
M1212001500302
AK502008AB
1
2
3
4
5
6
7
8
9
11 ± 1 N·m
Disassembly steps
1.
Push rod
2.
Boot
<<
A
>>
>>
A
<<
3.
Piston assembly
4.
Piston cup
5.
Piston
6.
Conical spring
7.
Cap
8.
Air bleeder
9.
Release cylinder
DISASSEMBLY SERVICE POINT
.
<<A>> PISTON ASSEMBLY REMOVAL
AK305228AB
1. Cover with a shop towel to prevent the piston from popping
out.
CAUTION
Apply compressed air slowly to prevent brake fluid from
splashing.
2. Apply the compressed air into the tube mounting hole to
remove the piston assembly.
Disassembly steps ( つづき )
CLUTCH RELEASE CYLINDER
CLUTCH OVERHAUL
21B-8
REASSEMBLY SERVICE POINT
.
>>A<< PISTON ASSEMBLY INSTALLATION
AK201613
AK201613AD
Piston
Piston cup
AK201614
1. Apply brake fluid to the piston cup and inner surface of the
release cylinder.
Specified brake fluid:
Brake fluid DOT3 or DOT4
2. Insert the piston assembly into the release cylinder.
INSPECTION
M1212001600161
.
RELEASE CYLINDER
1. Check the bore of the release cylinder for rust, scratches or
damage.
2. Using a cylinder gauge, measure the inside diameter of the
release cylinder at about three positions (the deepest,
middle and brim positions). If the clearance from the outside
diameter of the piston exceeds the limit, replace the release
cylinder as an assembly.
Limit: 0.15 mm
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