Brakelamp Switch; Service Brake Adjustment; Brakelining Inspection - Jeep 1979 CJ-5 Technical & Service Manual

BRAKES 2G-17
(7) On Cherokee, Wagoneer and Truck models, in-
stall fuel tank skid plate if removed.
(8) Tighten cable adjuster locknuts and adjust park-
ing brakes as outlined in this chapter.
(9) Lower vehicle.
Removal—Front Cable
(1) Raise vehicle.
(2) Remove equalizer from front cable.
(3) On CJ models, remove clip retaining cable to
frame bracket.
(4) On Cherokee, Wagoneer and Truck models, re-
move clip retaining cable to rear crossmember.
(5) Lower vehicle.
(6) Disconnect front cable return spring at parking
brake lever assembly if equipped.
(7) Roll carpet back and remove front cable ferrule-
to-parking brake lever assembly retaining clip.
(8) Disengage cable end from parking brake lever
assembly.
(9) Remove cable.
(10) If cable is to be replaced, remove insulator or
grommet from lever end of cable.
Installation—Front Cable
(1) Install front cable through floorpan and install
cable grommet or insulator in floorpan.
(2) Install cable ferrule-to-parking brake lever as-
sembly retaining clip and reposition carpet.
(3) Engage cable end in parking brake lever assem-
bly and install cable return spring if equipped.
(4) On CJ models, install clip retaining cable to
frame bracket.
(5) On Cherokee, Wagoneer and Truck models, in-
stall clip retaining cable to rear crossmember.
(6) Raise vehicle.
(7) Install cable equalizer and locknuts. On CJ mod-
els, be sure cable is properly positioned in frame bracket
as well as equalizer (fig. 2G-3).
(8) Adjust parking brakes as outlined in this
section.
(9) Lower vehicle.
BRAKELAIP SWITCH
The brakelamp switch is mounted on a flange at-
tached to the brake pedal support bracket (fig. 2G-2). A
spring-loaded plunger in the switch opens and closes the
stoplamp circuit.
When the brake pedal is in the released position, the
pedal arm contacts the switch plunger, holding it in the
off position. When the brake pedal is pressed, the spring
loaded plunger extends with brake pedal movement un-
til the switch is in the On position.
Brakelamp Switch Adjustment
(1) On CJ models with air conditioning, remove
screws attaching evaporator housing to instrument
panel and move housing away from panel.
(2) Press and hold brake pedal in applied position.
(3) Push brakelamp switch through mounting
bracket until it stops against brake pedal bracket.
(4) Release brake pedal to set switch in proper
position.
(5) Check switch position. Switch plunger should be
in On position and activate brakelamps after % to %
inch (9.52 to 15.87 mm) brake pedal travel. Measure
pedal travel from center of brake pedal pad.
(6) On CJ models with air conditioning, reposition
evaporator housing on panel and install housing attach-
ing screws.
SERVICE BRAKE ADJUSTMENT
The rear drum brakes are the only adjustable service
brakes on Jeep vehicles. If the rear brakes are dis-
assembled for any reason, an initial adjustment must be
performed before installing the drum. In addition, if
diagnosis indicates the need, the rear brakes can be
adjusted manually as follows:
(1) To perform initial adjustment with drums re-
moved, use Brakeshoe-to-Drum Clearance Gauge J-
21107-01 to preset brake lining adjustment (fig. 2G-5).
Drums should should fit over brake lining with slight
drag.
(2) To manually adjust rear brakes with drums in
place, proceed to next step.
(3) Remove access slot covers from brake support
plates.
(4) Rotate adjusting screw in clockwise direction
using brake adjusting tool until brakes are locked.
(5) Rotate adjuster screw in counterclockwise direc-
tion until wheel rotates freely (fig. 2G-6).
C A U T I O N : The automatic adjuster lever must be dis-
engaged from the adjuster screw before the screw can be
rotated. Use a thin blade screwdriver or section of 1/8
welding rod to unseat the adjuster lever (fig. 2G-6).
(6) Install access slot cover in brake support plate.
(7) Check brake operation before moving vehicle.
(8) Complete rear brake and pedal travel adjust-
ment by driving vehicle in reverse and making 10 to 15
firm brake applications. Make one forward brake appli-
cation between each reverse application to equalize
adjustment.
BRAKELINING INSPECTION
Disc Brakes
The brakelining should be inspected whenever the
wheels are removed for tire rotation or at the intervals
specified in the Maintenance Schedule.