TM 9-2320-361-20 12-26. OVERTURN TUBES REPLACEMENT (M49A2C) This task covers: a. Removal b. Installation INITIAL SETUP: APPLICABLE MODELS EQUIPMENT CONDITION M49A2C Parking brake set (TM 9-2320-361-10). REFERENCES (TM) GENERAL SAFETY INSTRUCTIONS TM 9-2320-361-10 Keep fire extinguisher nearby when working on fuel TM 9-2320-361-20P tank trucks. WARNING Do not perform this procedure while smoking or within 50 feet of sparks or open flame. Fuel is flammable and can explode easily, causing injury or death to personnel and damage to equipment. 1. Loosen clamps (1) on top and bottom of overturn tube (3). 2. Push tube (3) down, onto bottom adapter (4) as far as possible, and remove from adapter (2). 3. Remove tube (3) from adapter (4). b. Installation 1. Install clamps (1) on top and bottom of tube (3). 2. Install tube (3) and push down as far as possible on bottom adapter (4). 3. Install top of tube (3) on top adapter (2). Adjust tube (3) evenly on top adapter (2) and bottom adapter (4) and tighten clamps (1). 12-45