TM 9-2320-209-20-3-3 Section IV. SEATS 18-7. DRIVER’S SEAT REMOVAL AND REPLACEMENT (EARLY MODEL TRUCKS). TOOLS: 9/16-inch wrench SUPPLIES: None PERSONNEL: One EQUIPMENT CONDITION: Truck parked, engine off, handbrake set. a. Preliminary Procedure. Remove companion seat. Refer to para 18-12. b. Removal. 1. Lift up driver’s seat cushion (1). 2. Using 9/16-inch wrench, unscrew and take off four nuts (2) and four washers (3). 3. Pull out adjuster locking handle (4). Lift seat frame (5) off seat frame base (6) and take out four washers (7). END OF TASK 18-18