Chevrolet 70 1969 Series, Shop Manual

Page: 407 / 913

TRANSMISSIONS AND CLUTCHES 7A-2
CONTROL ISLAND SHIFT MECHANISM
On Tilt Cab Models with Clark, New Process
or Spicer transmission, if shift controls at control
island panel become worn or damaged, make re­
pairs as described in the following text:
R E M O V A L
N O T E : Key numbers in following text refer to
figure 2.
1. At the control island panel, disconnect shift
rod (6) from shift finger (10). Also, disconnect
selector rod (7) from selector finger (9).
2. Remove shift mechanism assembly-to-con-
trol island panel attaching parts and then remove
assembly from vehicle.
3. Remove gearshift knob, boot retainer (1)
and boot (2).
D ISASSEM BLY
N O T E : Key numbers in following text refer to
figure 2.
1. Remove cotter pin and washer from selec­
tor finger pin (3), then remove selector finger (9).
2. Remove lockwires from pivot screws (5),
then remove pivot screws, washers and selector
finger strap and pin assembly (11).
3. Remove gearshift lever (14).
1 Boot Retainer
9 Selector Finger
2 Boot
10 Shift Finger
3 Selector Finger Pin 11 Selector Finger Strap
4 Control Cover
and Pin Assembly
5 Pivot Screw
12 Roll Pin
6 Shift Rod
13 Pivot Pin
7 Selector Rod
14 Gearshift Lever
8 Adjustable Clevis
T-2983
Figure 2 — Typical Control Island Shift Mechanism
4. Using hammer and punch, remove roll pin
(12), pivot pin (13), and then remove shift finger
(10) from control cover (4).
C L E A N IN G A N D INSPECTION
1. Clean all parts thoroughly in cleaning sol­
vent. Wipe or blow parts dry.
2. Check all parts for wear, distortion, cracks,
or other damage.
3. Replace all parts that would affect proper
selection of transmission gears.
A SSE M B L Y
N O T E : Key numbers in following text refer to
figure 2.
1. Place gearshift lever on shift lever finger
(10) and position in control cover. Install pivot pin
(13) and roll pin (12).
2. Install selector finger strap andpinassem­
bly (11), washers and two pivot screws (5). Torque
screws to 60-65 foot-pounds and install new lock­
wires to pivot screws.
3. Install selector finger pin (3), selector
finger (9), washer and new cotter pin.
IN S T A L L A T IO N
N O T E : Key numbers in text refer to figure 2.
1. Install boot (2), boot retainer (1) and gear­
shift knob to shift mechanism assembly.
2. Place shift assembly in proper position on
control island and install attaching parts.
3. Connect shift control linkage to selector
finger (9) and shift finger (10), then adjust control
linkage as covered previously under "Linkage A d ­
justment" procedures.
REMOTE CONTROL ASSEMBLY
(AT TRANSMISSION)
Tilt cab vehicles have transmission remote
control assemblies as shown in figures 4, 5 and
6. Should parts become worn or defective, make
repairs as described in the following text:
R E M O V A L
1. Position transmission gearshift lever in
" N E U T R A L " and disconnect control rods from
shift levers at transmission.
N O T E : On models with New Process transmis­
sion, remove selector lever bellcrank snap ring.
2. Remove remote control assembly-to-trans-
mission cover attaching parts, then remove as­
sembly from vehicle.
N O T E : On vehicles with Spicer transmissions
(see fig. 3), in addition to removing the above at­
taching parts, it is necessary to remove the re­
tainer, plunger pin spring, and plunger pin. C A R E ­
F U L L Y remove remote control assembly, keeping
the assembly slightly tilted to the left, as shown,
CHEVROLET SERIES 70-80 H EAVY DUTY TRUCK SH O P M A N U A L