Chevrolet 1980 Light Duty Truck Repair Manual page 399

SINGLE PLATE COIL SPRING CLUTCH
Disassembly.................................
Inspection....................................
Assembly.....................................
Adjusting Levers.........................
D IS A S S E M B L Y
1. Place the cover assembly on the bed of an arbor or
drill press with a block under the pressure plate so arranged
that the cover is left free to move down.
2. Place a block or bar across the top of the cover with
the spindle. Hold compressed while the adjusting nuts are
removed as shown in Fig. 7C-2E. , Then slowly release
pressure to prevent springs flying out.
3. Lift off cover and all parts will be available for
inspection. Note carefully the location of all parts including
1. Release Lever
2. E yeb o lt
S tru t
3.
4. Cover
A d justin g N u t
5.
C o il S pring
6.
Fig. 7C-1 E -C oil Spring Clutch Cross-Section (Single Plate)
IN D E X
7. D rive Disc
Pressure Plate
8.
9. A n ti-R a ttle Spring
10. T h ro w o u t Bearing
11. Flyw heel
...................................................... ..7C-3
......................................................... 7C-3
......................................................... 7C-3
......................................................... 7C-4
arrangement of springs. See Fig. 7C-3E.
4. To remove levers grasp lever and eyebolt between
thumb and fingers as shown in Figure 7C-4E, so that inner
end of lever and upper end of eyebolt are close together,
keeping eyebolt pin seated in its socket in lever.
5. Lift strut over ridge on end of lever, as in Fig. 7C-5E.
6
. Lift lever and eyebolt off pressure plate.
NO TICE: It is important to replace all parts which
show wear.
IN S P E C T IO N
In addition to applicable items listed under Diaphragm
Clutch Inspection, check the following items.
1. Check driving lugs for wear.
2. Check clutch cover for distortion or cracks.
3. Check release levers for wear or cracks.
A S S E M B L Y
1. Lay the pressure plate on the block in the press and
coat the lugs with a thin film of approved lubricant such
as lubriplate. See Fig. 7C-6E.
2. Assemble lever, eyebolt and pin, holding eyebolt and
lever as close together as possible and with the other hand
grasp strut as shown in Fig. 7C-7E.
3. Insert strut in the slots in the pressure plate lug, drop
slightly and tilt the lower edge until it touches vertical
milled surface of lug.
4. Insert lower end of eyebolt in hole in pressure plate.
The short end of the lever will then be under the hook of
the pressure plate and near the strut, as in Fig. 7C-5E.
5. Slide the strut upward in the slots of the lug, lifting
it over the ridge on the short end of the lever and drop it
Fig. 7C -2E -C om pressing Clutch
CLUTCHES 7C-3
O V E R H A U L M A N U A L