Ring Brakemaintenance Instructions

THIS TASK COVERS:

a. Disassembly b. Inspection/Repair c. Reassembly

INITIAL SETUP

Tools and Special Tools Small Arms Repairman Tool Kit (item 2, appx B) Small Arms Shop Set (item 1, appx B)

Materials/Parts Cotter pin (2) (MS24665-283) Headless straight pin (MS16556-628) Solid rivet (MS35743-11)

Equipment Conditions 8-4 Ring brake removed

DISASSEMBLY

2 Remove two cotter pins (3) and headless straight pin (4) from brake shoe bracket (5). Discard cotter pins.

1 Remove socket head capscrew (1 ) and manual control lever (2).

3 Remove solid rivet (6), shaft collar (7), shoe brake assembly (8), flat washer (9), brake shoe cam (10), and brake shoe bracket (5) from cam brake bracket (11). Discard solid rivet.

4 Remove convex washer (12) and helical spring (13) from worm shaft assembly (14).

5 Remove setscrew (15) and plain round nut (16) from cam brake bracket (11).

6 Remove worm shaft assembly (14) from cam brake bracket (11).

7 Grind down and remove headless straight pin (17). Discard headless straight pin. Remove detent brake body (18) and helical spring (19) from worm shaft assembly (14).

INSPECTION/REPAIR

1 Inspect for broken, damaged, or missing parts.

2 Repair is by replacement of authorized parts (appx C).

REASSEMBLY

1 Install helical spring (1), detent brake body (2), and new headless straight pin (3) in worm shaft assembly (4). Peen pin securely.

2 Install worm shaft assembly (4) in cam brake bracket (5).

3 Install plain round nut (6) in cam brake bracket (5) and secure with setscrew (7).

4 Install helical spring (8) and convex washer (9) on worm shaft assembly (4).

5 Install brake shoe bracket (10), brake shoe cam (11), flat washer (12), shoe brake assembly (13), shaft collar (14), and new solid rivet (15) on cam brake bracket (5) and worm shaft assembly (4).

6 Secure brake shoe cam (11) to brake shoe bracket (10) with headless straight pin (16) and two new cotter pins (17).

Install manual control lever (18) and secure with socket head capscrew (19).

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