MANUAL RELEASE OF SPRING BRAKE (CAGING)

HANDBRAKE SYSTEM - CONTINUED - TM-9-2330-379-14P_171

MANUAL RELEASE OF SPRING BRAKE (CAGING) - CONTINUED

TM-9-2330-379-14P Trailer Cargo: 1-1/2-Ton 2-Wheel M105A3 NSN 2330-01-452-1218 Manual
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TM 9-2330-379-14&P MANUAL RELEASE OF SPRING BRAKE (CAGING) This task covers: a. Manual release of spring brake (page 4-93) INITIAL SETUP Tools Materials/Parts General mechanics tool set Caging tool Equipment Conditions Wheels chocked and rear dolly properly supported. Air reservoir drained (page 2-2). ACTION LOCATION ITEM REMARKS SPRING BRAKE RELEASE NOTE It should only be necessary to manually cage the spring brake(s) if the air pressure in the parking brake (7) air reservoir is below 80 psi. NOTE If a source of pressurized air is available, the parking brake air reservoir can be pressurized sufficiently (via the air reservoir (2) fill valve on the parking brake lever) to release the spring brake. 1 Parking Air reservoir If practical, pressurize parking brake air brake lever fill valve (2) reservoir sufficiently (greater than 80 (1) psi) to release spring brakes. 2 Tool box (3) or Caging tool (5) Remove caging tool (5) from tool box (3) spring brake or storage slot (4) on side of spring storage slot (4) brake unit. 3 Rear wheel Caging tool (5) a. Insert caging tool (5) in hole in rear (6) and spring brake of spring brake unit (7). unit (7) b. Rotate caging tool clockwise 18 to 21 full turns to manually release spring brake by caging power spring. 4-93

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