6
Brake Cable Equalizer Adjustment
WHEEL BRAKE ASSEMBLIES
BRAKE CABLE EQUALIZER ADJUSTMENT
See General Warnings on page 1-1. See also Asbestos Dust Warning on page 6-1.
1.
After maintenance on the brake system is complete, lower the vehicle onto the floor. With the brake pedal in the
full up or at rest position, adjust the turnbuckle (1) until the proper brake tension is achieved
(Figure 6-18, Page
6-9)
. The turnbuckle is properly adjusted when the distance from the top of the equalizer (2) to the upper flange
surface is 2 inches ± 1/16 inch (51 mm ± 1.6 mm).
2.
Ensure that both threaded rods are visible in the witness holes of the turnbuckle (1) before the jam nuts (3)
are tightened.
3.
Snug the front and rear jam nuts to their respective surfaces, then back the nuts off 1/4 - 3/8 inch (6.4 - 9.5 mm)
and apply Loctite 242 on the threads for both front and rear jam nuts.
4.
Tighten the rear jam nut first (labeled 1 of 2) to 156 in-lb (17.5 N·m)
(Figure 6-18, Page 6-9)
, then tighten the front
jam nut to 156 in-lb (17.5 N·m).
See following WARNING.
For optimal performance, drive the vehicle and apply
the brakes approximately 20 times to burnish the shoes, center the clusters, and adjust the brake mechanism.
WARNING
• Reduced braking force could result if the jam nuts are not tightened in the proper sequence.
5.
Once steps 2 and 4 are complete, recheck the 2-inch specification listed in step 1. If the measurement has not
changed, the adjustment is complete. If the measurement has changed, perform steps 1 through 4 again.
6.
Replace access panel and floor mat.
6.1. Place floor cover plate (7) over the floor opening and secure with fastener (10)
(Figure 5-2, Page 5-2)
.
6.2. Install the floor mat (2) over the pedal group. Make sure tabs on floor mat sides are beneath the sill (3).
Tighten screws (1) to 53 in-lb (6 N·m)
(Figure 5-1, Page 5-1)
.
Page 6-10
2009 Electric Precedent Maintenance and Service Manual
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