BRAKE CHAMBER ASSEMBLY

TM-5-3810-306-20 Container Crane 40-Ton Rough Terrain Model RTB75CC Manual
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TM 5-3810-306-20 b. Inspect wedge (1) for cracks or wear and replace if necessary. c. Inspect roller retainer cage (2) for damage and wear. Replace as necessary. d. Ensure groove for snap ring on wedge shaft (1) is clean and sharp. 2. INSPECT BRAKE CHAMBER COMPONENTS. a. Inspect diaphragm (17) for splits or cracking and replace if necessary. b. Inspect housings (12 and 18) for cracks and damage. Replace as required. REASSEMBLY: 1. ASSEMBLE WEDGE ASSEMBLY. a. Insert wedge shaft (1) into roller retainer cage (2). b. Install two rollers (3) into cage (2). Bend tabs slightly inward to secure rollers without limiting roller action. c. Install spring retainer (4) over wedge shaft (1) and position it centrally over cage (2) and roller assembly. NOTE Current production and service replacements use a spring retainer (4) that has two tabs or protrusions on the OD. These tabs serve to align wedge assembly as it is installed into plunger housing by engaging grooves in wedge bore. If the plunger housing is not equipped with such NOTE (CONT) grooves, remove tabs at breakoff marks and file OD of retainer smooth. d. Install wedge spring (5) over wedge shaft (1), large coil diameter first. Add spring retainer washer (6) and compress spring (5) by hand far enough to expose cotter pin hole and install snap ring (7). 2. ASSEMBLE BRAKE CHAMBER. a. Install wedge guide (13), boot (14), push rod (15), diaphragm plate (16) and diaphragm (17). WARNING Prior to installing spring brake chamber (18), ensure spring (5) is caged. b. Install spring brake chamber (18) on the non- pressure housing (12). c. Spread clamp ring (9) and install bolts (11) and nuts (10) that secure spring brake chamber (18) to non-pressure housing (12). 3. INSTALL BRAKE CHAMBER. (REFER TO PAGE 11-4.) 4. TEST FOR PROPER OPERATION. (REFER TO TM 5-3810-306-10.) END OF TASK 11-10

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