TM 1-1520-238-23
Change 4
6-293
6.66.
MAIN TRANSMISSION ROTOR BRAKE DISK REMOVAL/INSTALLATION – continued
c. Check rotor brake disk for pitting and corro-
sion in non-contact areas (para 1.49).
(1) Replace disk if pitting exceeds 0.010 INCH
deep. Use depth gage.
d. Check rotor brake disk for grooves in brake
pad contact area.
(1) Replace disk if grooves exceed 0.007 INCH
deep or have sharp edges. Use depth gage.
6.66.6. Installation
a. Install disk (5) on shaft (8).
(1) Slide disk (5) on shaft (8) with hub (12) toward
transmission (2).
(2) Hand tighten locknut (4) on shaft (8).
b. Install actuator (9) on transmission (2). Torque
two bolts (10) to 1175 INCH-POUNDS.
(1) Position actuator (9) on transmission (2) and
disk (5).
(2) Install two bolts (10) through washers (11)
and actuator (9).
(3) Torque two bolts (10) to 1175 INCH-
POUNDS. Use hexagon screwdriver and
torque wrench.
c. Inspect (QA).
NOTE
Ensure maintenance fixture is installed (if
transmission is removed), before torqu-
ing locknut.
d. Lock rotor brake (if transmission is installed)
(para 1.62).
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M04-0522-4A
12
5
8
4
2
M04-0522-5A
9
11
5
10
2
