TM 9-2320-209-20-3-1 4-4. AIR CLEANER INDICATOR REMOVAL AND REPLACEMENT. TOOLS : 7/16-inch open end wrench 9/16-inch wrench (2) SUPPLIES : None PERSONNEL: One EQUIPMENT CONDITION: Truck parked, engine off, handbrake set. . Removal. 1. Working from behind instrument panel and using 7/16-inch wrench, hold connector fitting (l). Using 9/16-inch wrench, unscrew fitting (2) and take off tube assembly ( 3). Unscrew and take off connector fitting. 2. Using 7/16-inch wrenches, unscrew and take off two capscrews ( 4), washers (5), and nuts (6) and take off air cleaner indicator ( 7). END OF TASK TA 080844 4-6