Chevrolet 70 1969 Series, Shop Manual

Page: 412 / 913

TRANSMISSIONS AND CLUTCHES 7A-7
should allow downshifts at the highest R P M
possible.
C A U T IO N : The transmission should not be
operated if throttle linkage is not adjusted cor­
rectly because insufficient T V pressure could
cause reduction of main pressure, which in turn,
might result in clutch slippage and transmission
failure.
Accelerator And T V Linkage Adjustment
Procedure - Gas Engine Models (Refer to Fig. 8)
1. Start engine and adjust idle speed to 575-
600 rpm, then stop engine.
2. Disconnect clevis (G) from T V lever (F).
Position lever (A) 0.060 inch from stop (B).
3. With carburetor throttle lever (C) at idle
position and lever (A) 0.060 inch from stop (B),
adjust the swivels on rod (I) to provide free-entry
into levers (A) and (C).
4. With carburetor throttle lever (C) at idle
position, and T V lever (F) against rear stop
(rotated away from engine), adjust clevis (G) on
rod (H) for free-entry into lever (F). Then turn
clevis (G), to shorten rod, two full turns. Install
clevis pin, tighten jam nut and secure clevis (G) to
T V lever (F) with cotter pin.
N O T E : O n tilt cab models, with carburetor
throttle lever (C) in idle position, rod (J) should
clear radiator support by 1/8-inch. Lengthen rod
(J), as necessary.
I M P O R T A N T : Adjustment of the detent but­
ton (E) is accomplished by relocating the two jam
nuts located on either side of the cab floor (see
Figure 8 — Accelerator a nd TV Linkage (V -6 G as M odels)
CHEVROLET SERIES 70 -80 H EAVY DUTY TRUCK SH O P M A N U A L