Copyright by Goodheart-Willcox Co., Inc.
Chapter 9 Automatic Transmission Control Components 199
26
11
13
24
1. Release button
2. Spring
3. Grip or shifter handle
5. Selector lever rod
6. Spring
7. Indicator assembly
8. Bulb
9. Latching spring pin
10. Selecter lever
11. Cotter pin
13. Bushing
14. Flange nut
15. Mounting base
16. Flange tapping screw
18. Boot
19. Spacer
20. Inhibitor switch
21. Washer
22. Spring washer
24. Shift rod
26. Connector
27. Flange screw
28. Bushing
27
8
7
9
13
16
14
15
18
19
20
22
21
11
28
10
6
5
3
2
1
Figure 9-18. A typical floor-shift selector lever is mounted directly on the floor or in a console between the front seats. The shift rod
extends to the transmission. (Subaru)
Floor-Shift Selector Lever
An assembly incorporating a typical floor-shift selector
lever, Figure 9-18, is mounted directly on the floor or in a
console between the front seats. Levers and rods (or cables)
are used to transfer motion from the floor-shift selector
lever to the transmission. The selector indicator, or quad-
rant, is usually built into the assembly; however, some are
installed in the dash and connected to the transmission by
a linkage arrangement.
To move the selector lever between certain positions,
a lever release button must be depressed. Pressing the
release button unlocks the selector lever latching mecha-
nism. The latching mechanism typically consists of a latch-
ing spring pin (or lever) and a detent plate. The pin fits
through a slotted hole at the bottom of the selector lever
and into the detents in the plate, which is located on the
mounting base of the shift mechanism. Pressing the release
button lowers the pin so that it is no longer in the detent.
The selector lever can then be moved. When the button is
released, the pin moves into the detent for the new selector
position. The latching mechanism is usually designed to allow
the selector lever to be moved from a lower gear to a higher
gear and from drive to neutral, without pressing the release
button. For other sequences, the button must be depressed.
Column-Shift Selector Lever
A shift linkage incorporating a column-shift selector
lever uses a series of rods and levers to transfer movement
from the steering column to the transmission. See Figure
9-19. The column-shift lever does not have a release but-
ton. Pulling the selector lever toward the driver disengages
a latching pin from its slot, allowing the lever to be moved
to the proper position.
Shift Linkage
Figure 9-20 shows typical shift linkage at a transmis-
sion case. Note the outer manual lever and shaft assembly.