TM 9-2320-361-20 12-44. REAR COMPARTMENT DOOR MAINTENANCE This task covers: a. Removal c. Repair b. Cleaning and Inspection d. Installation INITIAL SETUP: APPLICABLE MODELS M49A2C, M50A2, M50A3 MATERIALS/PARTS Twenty-six locknuts REFERENCES (TM) (Contd) TM 9-237 TM 9-2320-361-10 TM 9-2320-361-20P TM 43-0137 PERSONNEL REQUIRED EQUIPMENT CONDITION Two Parking brake set (TM 9-2320-361-10). REFERENCES (TM) GENERAL SAFETY INSTRUCTIONS FM 43-2 Keep fire extinguisher nearby when working on fuel TB 43-0209 tank trucks. TC 9-510 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. Remove six locknuts (8), screws (2), and two holders (1) from compartment doors (4). Discard locknuts (8). NOTE Assistant will help with step 2. 2. Remove twenty screws (7), locknuts (3), and compartment doors (4) from tank body (9). Discard locknuts (3). 3. Remove four screws (6) and instruction plate (5) from compartment door (4). b. Cleaning and Inspection 1. Refer to para. 2-10 for general cleaning instructions. 2. Inspect compartment door(s) for dents, rust, or damage. Replace compartment door(s) if dented, extensively rusted, or damaged. 1. Remove data plates (para. 11-37) or lashing hooks (para. 11-25) in area(s) to be painted/repaired. 2. Remove paint or rust from area to be repaired (TM 43-0139). 3. Repair compartment door(s) (TM 9-237 and TC 9-510). 4. Paint compartment door(s) as required (TM 43-0137 and TB 43-0209). 5. Install data plates (para. 11-37) or lashing hooks (para. 11-37). d. Installation 1. Install instruction plate (5) on compartment door (4) with four screws (6). NOTE Assistant will help with step 2. 2. Install compartment doors (4) on tank body (9) with twenty screws (7) and new locknuts (3). 3. Install two door holders (1) on compartment doors (4) with six screws (2) and new locknuts (8). 12-66