TM 9-2320-209-20-3-2 13-14. AIR HYDRAULIC CYLINDER REMOVAL AND REPLACEMENT. TOOLS: 5/8-inch socket wrench 1/2-inch open end wrench 5/8-inch open end wrench 1 3/16-inch combination box and open end wrench 3/4-inch combination box and open end SUPPLIES: None PERSONNEL: One EQUIPMENT CONDITION: Truck parked, engine wrench off, handbrake set. a. Preliminary Procedure. Vent air system pressure. Refer to para 13-20. b. Removal. FRAME 1 1. Using 5/8-inch socket wrench, unscrew and take off two screws (1). 2. Take off shield (2). GO TO FRAME 2 13-107