MAINTENANCE AND ADJUSTMENTS
This task covers:
Jack, hydraulic, hand, 10-ton
General mechanics tool kit
Slack Adjuster Adjustment.
(1) To release spring forces from slack adjuster and camshaft, apply air to
brake chambers. Do not apply the brakes.
(2) Jack up the axle to be adjusted.
Check that wheels rotate freely.
(3) Check clevis rod (1, fig. 4-27) adjustment. Dimension from outside of
nonpressure housing to center of clevis pin should be 5.56 in. (13.34 cm).
Slack adjuster (2) may have to be moved or adjusted to center hole in
spring brake chamber with clevis rod (l). If dimensions of clevis are not
correct, remove cotter pin, clevis pin and loosen locknut. Adjust clevis
rod (1) to correct length. Tighten nut. Install clevis pin and new cotter
Slack Adjuster Adjustment