Chevrolet 70 1969 Series, Shop Manual

Page: 414 / 913

TRANSMISSIONS AND CLUTCHES 7A-9
b. To lower shift point, lengthen rod (F) until
the desired shift point is obtained.
M A N U A L S E L E C T O R L IN K A G E A D J U S T M E N T
(Refer to Fig. 10)
The transmission shift control linkage should
fully engage all transmission range positions,
“ R, N, 3-6, 3-5, 3-4, and 1-2,” adjust before the
lever hits the "stops” incorporated in the shift
control cover. Shift the selector lever through
each position while feeling for full engagement in
the transmission. Note the position of the selector
lever after each shift. Transmission should not
engage "3- 6” or " R ” (Reverse) until selector
lever is completely out of the neutral notch. If
lever is not properly located or operating, adiust
linkage as follows:
Figure 11 — Retarder Controls
(Conventional Cab Models)
1. Locate transmission selector lever (B)
against stop in 3-6 position.
2. Check cable for dimension shown in View
A-A and adjust if necessary. Anchor cable to
bracket at point (D).
N O T E : Threaded portion of shift cable
extends 0.88 inch above top-side of bracket, as
shown at point (D).
3. Disconnect clevis (G) from transmission
manual shift lever (H). Anchor cable securely at
point (F).
4. Locate manual shift lever (H) in 3-6 posi­
tion (3rd notch from the rear). Adjust clevis (G)
for free-entry of clevis pin through clevis and
manual shift lever (H). Then lengthen clevis (G)
by 1-1/2 turns, install clevis pin, tighten jam nut,
and secure with cotter pin.
5. After completing all adjustments, operate
vehicle and check operation of selector lever
through all shift ranges. Readjust if necessary.
N E U T R A L S A F E T Y S W IT C H A D J U S T M E N T
(Refer to Inset, Fig. 10)
N O T E : "Manual Selector Linkage Adjust­
ment” should be performed as described previ­
ously, prior to adjustment of the neutral safety
switch.
1. Apply parking brake and perform the
following to prevent the vehicle from accidently
starting while performing adjustment:
Figure 12— Adjusting Master Cylinder Push
Rod (Typical for Conventional Cab)
CHEVROLET SERIES 70 -80 H EAVY DUTY TRUCK SH O P M A N U A L