TM 9-2320-361-20 12-51. DELlVERY PUMP FRONT PROPELLER SHAFT MAINTENANCE (M49A2C, M50A3) This task covers: a. Removal c. Installation b. Inspection INITIAL SETUP: APPLICABLE MODELS EQUIPMENT CONDITION M49A2C, M50A3 Parking brake set (TM 9-2320-361-10). MATERIALS/PARTS Discharge tube cover removed (M50A3 only) (para. 12-46). Four locknuts Key GENERAL SAFETY INSTRUCTIONS REFERENCES (TM) Keep fire extinguisher nearby when working on fuel tank trucks. TM 9-2320-361-10 TM 9-2320-361-20P 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 four screws (3) and locknuts (1) from power takeoff flange (2) and delivery pump front propeller shaft (4). Discard locknuts (1). 2. Remove setscrew (7) and delivery pump front propeller shaft (4) from intermediate shaft (6). 3. Remove key (5) from intermediate shaft (6). Discard key (5). b. Inspection Inspect U-joints (8) for wear or damage. Replace U-joints (8) if worn or damaged (para. 7-4). c. Installation i 1. Install new key (5) in intermediate shaft (6). 2. Install delivery pump front propeller shaft (4) on intermediate shaft (6) with setscrew (7). 3. Install delivery pump front propeller shaft (4) on power takeoff flange (2) with four screws (3) and new locknuts (1). 12-82