Brake Shoes

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TM-9-2330-380-14-P Semitrailer Van: Electronic Tactical 12-Ton 4-Wheel XM1063 (NSN 2330-01-224-9244) and M129A4 (NSN 2330-01-372-5642) Manual

Section IX. Platform, Spare Wheel Carrier, Landing Gear and Leveling Jack

TM 9-2330-380-14&P

4-55. Brake Shoes

This task covers:

a. Removal

b. Inspection

c. Installation

Initial Setup:

Tools/Test Equipment:

EquipmentConditions:

General mechanic's tool kit (item 01, Appendix B)

Wheels removed (para. 3-4).

Hub and drum assembly removed (para. 4-52

(XM1063) or para. 4-53 (M129A4)

Materials/Supplies:

Brakes caged (para. 2-27)

a. Removal

1. Hold each shoe (3) away from anchor pins (2) and remove anchor pins.

2. Remove retaining springs (1).

3. Swing back brake shoes (3) and remove shoes with return springs.

4. Remove return springs (4) from shoes. Remove cam roller spring (5)

and cam roller (6).

b. Inspection

1. Inspect springs for rust, obvious defects and excessive wear.

Replace defective spring.

2. Inspect brake shoe lining for wear. If braking surface is within 3/16

inch of rivet heads or grease is present, replace brake shoe.

c. Installation

1. Install return spring (4), cam roller spring (5) and cam roller (6).

2. Position brake shoes (3) on axle spider and install retaining springs (1).

3. Hold each shoe (3) away from cam and insert anchor pins (2).

Follow-on maintenance:

Install hub and drum assembly (para. 4-52 (XM1063) or para. 4-53 (M129A4)).

Install wheels (para. 3-4).

Uncage brakes (para. 2-27).

Adjust slack adjuster (para. 4-50 (XM1063) or para. 4-51 (M129A4)).