TM 55-1680-320-23 & P
3-42. AUTOMATIC BRAKE ASSY - REPAIR
3-42
This task covers: Disassembly,
INITIAL SETUP
Personnel Required:
Cleaning, Inspection, Repair and Reassembly
Equipment Condition:
67N, UHl Helicopter Repairer
Hoist installed in assembly stand
67T, UH60 Helicopter Repairer
Automatic brake assembly removed
Parts/Materials:
Equipment Condition Para:
Automatic Transmission Fluid (Item 3,
Task 3-5
App. D)
Task 3-43
Tools and Test Equipment:
References:
Tool Kit, Aircraft Mechanics
None
NSN 5180-00-323-4692
Shop Set, Intermediate Maintenance
NSN 4920-00472-4183
Automatic Brake Torque Fixture,
42277-728
1. Disassembly.
a.
b.
c.
e.
f.
Remove cotter pin (l), castellated nut (2) and washer (3) from automatic broke shaft (4).
Remove gear cam seats (5), roller cage assembly (6), belleville springs (7, 8) and pressure plate (9). Remove key
(lo).
Remove dowel pins (11) from gear cam seat (5).
NOTE
Note and record thickness of shim (14) to aid in reassembly.
Slide brake discs (12 and friction discs (13) off automatic brake shaft (4). Remove shim (14).
Remove ball bearing (15) from automatic brake shaft (4).
GO TO NEXT PAGE
3-142
