the grip and the adjusting pin is great enough to
overcome the compression of the return spring, and the
adjusting pin will be pulled through the grip only to
compensate for lining wear.
After torquing the automatic adjusting nuts to the
specified value, back them off and retorque several
times. This procedure will ensure proper mating of all
parts and the correct torque on the final assembly.
Figure 14-28 shows the captured nontorquing-type
automatic adjuster used on some single and dual disc
Grips, split collar
Figure 14-28.--Captured nontorquing-type automatic
Brakes that contain nontorquing adjusters can be
identified by the locknut and threaded bushing over
each adjusting pin. The only difference between the
torquing- and nontorquing-type automatic adjustment
is the method used to restrict the movement of the
adjusting pin. The torquing-type adjustment uses a
tapered grip, and the nontorquing uses one or more
1/4-inch-wide grips composed of brass liners.
Spare grips are shipped with pilot pins installed to
open the grip to the approximate diameter of the
adjusting pin, thus preventing damage to the grip
during installation. The pilot pin is expelled as the grip
is forced over the adjusting pin. If grips are to be
reused when a brake is disassembled, they should have
the pilot pins reinstalled before assembly in the brake.
Brake repairs on the single disc brake consist of
replacing linings, worn or damaged sealing devices,
brake release units, or brake discs. See figure 14-29.
Lining replacement and cure-date kit installation
consist of the following steps:
1. Remove the lockwire and unscrew the cylinder
heads (brake release units); remove the release
units from the housing.
Figure 14-27.--Cross-sectional view of a single disc brake
assembly with captured torquing-type automatic adjuster.
2. Remove the disc from the brake housing.