Chevrolet 10 Series 1970, Service Manual

Page: 451 / 671

CLUTCHES AND TRANSMISSIONS 7-21
4 0 - 6 0 SERIES MODELS
Removal
NOTE: K ey numbers in follow ing text r e fe r to
Figu re 2D.
TRANSM ISSIONS
LINKAGE ADJUSTMENT
Tilt Cab M odels
NOTE: K ey numbers in text r e fe r to Figu re ID .
1. P la c e tran sm ission s e le c to r and shift le v e r s (9) in
“ N E U T R A L " position.
2. Adjust s e le c to r and shift rods (8) to p rovid e 90°
angularity at the lo w er end o f the g ea rsh ift le v e r (1)
to the control island panel (2) as shown.
Adjustm ent is accom plished by rotating the adjust­
able c le v is (see Inset, fig . ID ) at eith er the control
island o r transm ission end o f the s e le c to r and shift
rods (8). Tighten lock nuts secu rely.
3. Check adjustment by m oving gea rsh ift le v e r through
the shift pattern. T h ere must be no binding in the
linkage.
NOTE: A t the extrem e s e le c to r and shift m ove­
ments, c le v is pins should rotate fr e e ly . R e ­
adjust linkage, i f n ecessa ry, to obtain these
conditions.
4. R eplace any worn o r damaged cotter pins.
5. Lu bricate control linkage as d escrib ed in L U B R IC A ­
TIO N (Section 0) o f the Tru ck S ervice Manual.
CONTROL ISLAND SHIFT M E C H A N IS M
On T ilt Cab M odels with Clark, New P ro c e s s , o r
S p icer transm ission, i f shift controls at control island
panel becom e worn o r damaged, make re p a irs as d e­
s c rib e d in the follow in g text.
1. A t the control island panel, disconnect shift rod (6)
from shift fin g er (10). A lso , disconnect s e le c to r rod
(7) fro m s e le c to r fin ger (9).
2. Rem ove shift mechanism a ssem b ly -to -co n tro l island
panel attaching p arts and then rem ove assem bly from
veh icle.
3. Rem ove gea rsh ift knob, boot retain er (1) and boot (2).
Disassembly
NOTE: K ey numbers in follow ing text r e fe r to
F igu re 2D.
1. R em ove cotter pin and washer from s e le c to r fin ger
pin (3), then rem o ve s e le c to r fin ger (9).
2. R em ove lo c k w ire s fro m pivot screw s (5), then r e ­
m ove p ivot scre w s , w ashers and s e le c to r fin ger
strap and pin assem bly (11).
3. Rem ove gearsh ift le v e r (14).
4. Using ham m er and punch, rem ove r o ll pin (12), pivot
pin (13), and then rem o ve shift fin g er (10) from
control c o v e r (4).
Cleaning and Inspection
1. Clean a ll p arts thoroughly in cleaning solvent. W ipe
o r blow parts dry.
2. Check a ll p arts fo r w ear, distortion, crack s, o r other
damage.
3. Replace a ll p arts that would a ffect p ro p er selection
o f tran sm ission gears.
1 Gearshift Lever
2 Island Panel
3 Selector Finger
4 Clevis
5 Lock Nuts
8
6
Clevis
7 Shift Finger
8
Selector and Shift Rods
9 Selector and Shift Levers
F ig . I D —T ilt C ab Transmission C o n tro l Linkage
CHEVROLET TRUCK SERVICE MANUAL