GILLIG LOW FLOOR, Service Manual, Page: 276 / 506

Brakes & Wheels
276
Figure 7-6, Rotate Control Arm
Figure 7-8, Manual Adjustment
Figure 7-7, Correct Adjustment
6. Rotate the control arm away from the adjusting hex
toward the air chamber, until it comes to a definite
internal stop (Figure 7-6). Most adjusters will be
equipped with an “Installation Indicator.” Indicator
must fall within the slot for proper installation with
brakes fully released (Figure 7-7). If the control arm
position is wrong, tight brakes will occur (Figure
7-7).
7. Tighten all anchor bracket fasteners (make sure the
control arm does not move from its position while
tightening fasteners).
8. The adjuster must be manually adjusted at this time.
Rotate the adjusting hex clockwise until the lining
lightly contacts the drum. Then back-off the adjust-
er by turning the adjusting hex counter-clockwise
1/2 of a turn (Figure 7- 8). A minimum of 13 ft-lb is
necessary to overcome the internal clutch. A ratch-
eting sound will be present.
Do NOT use an impact wrench
or internal damage will occur!
9. Perform final inspection. With service
brake application fully released, ensure
that spring brakes are released, and check
that the “Installation Indicator” is within
the slotted area. IF NOT, REPEAT steps
6 and 7.
To ensure proper fit and function, always
replace both adjuster and mounting bracket.