TM 9-2320-209-20-3-3 1. Using 7/16-inch wrench, unscrew 13 screws (1). Screws hold intermediate tunnel (2) to front tunnel (3), cab floor (4), and rear tunnel (5) 2. Lift off intermediate tunnel (2) and take it out of cab. 3. Using 7/16-inch wrench, unscrew eight screws (6) holding front tunnel (3). 4. Lift off front tunnel (3) and take it out of cab. 5. Using 7/16-inch wrench, unscrew seven screws (7) holding rear tunnel (5). Lift off rear tunnel and take it out of cab. END OF TASK 18-11