TM 9-2320-209-20-3-4 19-16. CARRIAGE TRAVEL ADJUSTMENT (TRUCK M764). TOOLS: 3/4-inch wrench 15/16-inch wrench (2) 3/4-inch socket Breaker bar 5-inch extension 6-inch ruler SUPPLIES: None PERSONNEL: One EQUIPMENT CONDITION: Truck parked, engine off, handbrake set. a. Preliminary Procedure. Remove second reduction drive chain. Refer to para 19-17. b. Carriage Travel Adjustment. FRAME 1 1. Using 3/4-inch wrench, breaker bar, extension, and 3/4-inch socket, loosen screw (1) and nut (2) on each cross chain bracket (3). 2. Using 15/16-inch wrenches, loosen two adjusting screws (4). GO TO FRAME 2 19-83