TM9-2330-368-14 & P
c. Brake Adjustment (Slack Adjustment).
4-15. SERVICE BRAKES (cont)
NOTE
(2) Installation.
Brake adjustment must be done with
brake air chambers uncaged, air in the
(a) Install bushing (17) in spider (18).
system and dust shield removed.
Make sure hole in bushing alines
with hole in spider for grease fit-
(1) Jack up wheel to be adjusted (para. 3-6).
ting (15).
(2) Apply a 9/16 inch wrench to hex head
(b) Install new seals (16) and grease
(1) of worm shaft and push in against
fitting (15).
the slack adjuster (2) to unlock the
worm shaft.
(c) Install new seals (14) in brackets
(11 and 12).
(3) Turn the hex head (1) of the worm
shaft clockwise on slack adjuster until
(d) Place bearing (13) between brackets
the wheel cannot be turned.
(11 and 12) so hole in bearing
alines with hole in bracket (11). In-
(4) Back off the worm shaft hex head (1)
sert grease fitting (10) through
until the wheel turns freely. Check
bracket hole and install in bearing,
clearance between brake shoes and
drum with feeler gage. Clearance should
(e) Install bearing assembly (9) on axle
be 0.005 inch. Adjust worm shaft hex
bracket (19) with three screws (8),
head (1) to meet specified clearance.
lock washers (7) and hex nuts (6).
(5) Lower jack and remove from axle
(f) Coat length of camshaft (3) with
grease GAA and insert through
bushing (17). Place washer (5) on
(6) Repeat steps (1) through (5) for other
camshaft and insert camshaft
slack adjusters as required.
through bearing assembly (9).
(7) Install dust shield (para. 4-15b2).
(g) Install lock ring (4) using lock ring
pliers.
(h) Install slack adjuster and lock ring
(para. 4-15d (2)).
(i) Install brake shoes (para. 4-15a
(5)).
NOTE
It may be necessary to remove
slack adjuster to aline cam-
shaft with shoe anchor pins.
(j) Install hubs and drums (para. 4-14
e).
(k) Install wheels (para. 3-6).
(l) Install dust shield (21) with six
self-tapping screws (20) after brake
,adjustment (para. 4-15c).
4-27
