Chevrolet 70 1969 Series, Руководство по ремонту

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TRANSMISSION AND CLUTCH 7-129
sert three 9 /1 6 ” -18 x 2" bolts through the cover and
thread into the adjusting nuts (10) to act as guide bolts
(fig. 12). W ith guide bolts in place, slowly com press the
assembly, m aking sure the pressure springs are properly
seated and drive lugs engage the cover slots correctly. Do
not allow the clutch cover to tilt: com press it squarely
until the guide bolts will pull the adjusting nuts up
through the clutch cover (fig. 12).
7. Remove guide bolts from adjusting nuts. Install lock
nuts (1 1) on adjusting nuts. Do not tighten lock nuts.
X. To facilitate installation of the clutch cover assemblies,
blocks or hold-down bolts and washers are used to
hold pressure springs com pressed and pressure plate
retracted into the clutch cover. Install three blocks be­
tween release levers and cover in m anner shown in
Figure 3. The three hold.-down bolts with flat w ash­
ers are installed through cover into threaded holes
provided in pressure plate.
ADJUSTING RELEASE LEVERS
Release lever height adjustm ent is needed only on re­
built assemblies. The clutch release levers m ust be set to
correct height, and m ust be in plane with 0.031". Proper
procedure for adjustm ent of clutch release levers is as fol­
lows:
1. Place new driven discs and interm ediate plate or
1.154” spacers on the flywheel.
2. Install clutch cover assembly on flywheel. Tighten
clutch cover to flywheel bolts gradually.
3. Remove the wood blocks or hold down bolts and
washers from release levers.
4. Depress each lever several times with a ham m er
handle to settle all parts into working position.
5. Lay a straight-edge across clutch cover in position
shown in Figure 16. The correct setting is m ade from
the straight-edge to point on release levers which con­
tact release bearing. C orrect setting is 29/32-inch as
shown in Figure 13.
6. T o facilitate lever height adjustm ent, start with levers
low and with the lock nut ju st snug. T urn the adjust­
ing nut and loc nut as a unit clockwise until lever is
raised to the desired height. Then hold slotted adjust­
ing nut firmly with special tool (J-7816) and tighten
lock nut securely.
IMPORTANT: Levers must be in plane within
0.031".
7. Place wood blocks between release levers and edge of
cover (fig. 3) or install hold-down bolts and flat w ash­
ers.
8. Remove cover-to-flywheel bolts, then remove clutch
cover assembly from flywheel.
RELEASE LEVER HEIGHT ADJUSTMENT
(13 Inch Clutch Forged Lever Type)
Each release lever height adjustm ent nut is retained in
set position by a spring strap which is attached to the
clutch cover with two cap screws.
To check and adjust lever height adjustm ent, perform
the following:
1. Refer to Figure 6 on page 7 -1 25which illustrates a
typical m ethod of checking release lever height adjust­
ment.
2. Use the sam e 3/8-inch type spacers shown. The di­
mension from top of release lever to top surface of
cover should m easure 1-3/16” plus or minus 1/32”
and all levers must be in sam e plane w'ithin 0.031
inch. If height dim ensions are not as specified, m ake
adjustm ent as follows:
Lever Height Adjustment Procedure
1. Loosen clutch cover-to-flywheel attaching bolts evenly
to allow' cover to move away from flywheel and per­
mit ends of release levers to extend outw ard to the
unloaded position.
2. Remove the spring straps from over adjustm ent nuts.
By pulling release levers further outw ard, the adjust­
ment nut will unseat from cover to a distance whereby
vise-grips or alligator-type pliers can be applied to
turn the nut.
3. After turning nut, it is necessary to again secure
clutch cover firmly to flywheel, over the spacers, and
recheck the lever height dim ension.
4. If necessary, repeat the foregoing steps until proper
height dimension is obtained.
5. After obtaining proper adjustm ent, install spring
straps over adjustm ent nuts.
NOTE: The two dimples in strap should be
pointed toward the nut.
SPECIFICA TIO N S
TRUCK SERIES ....................... Standard-All 70
CLUTCH COVER ASSEMBLY
M a k e ...............................................................Lipe-Rollway Corp.
C learance Between Pressure Plate Driving
Lugs and Cover Drive Section ..............0.004” -0.012”
DRIVEN DISC ASSEMBLY
Lipe-RcUway Part No. (Stam ped):
Flywheel Side Assembly .......................................140-9-044
Pressure Plate Side A s s e m b ly ..........................140-9-045
DRIVEN DISC FACINGS
Individual Fat ins Thickness ..........................0.156” -0.161”
MrVPC-i R SESiES /C 30 rtE-v'v TRUCK SH O P M A N U A L