TM 9-2320-361-20 12-35. DELIVERY PUMP REPLACEMENT This task covers: a. Removal b. Installation INITIAL SETUP: APPLICABLE MODELS M49A2C, M50A2, M50A3 MATERIALS/PARTS Four locknuts Key REFERENCES (TM) LO 9-2320-209-12-1 TM 9-2320-361-10 TM 9-2320-361-20P EQUIPMENT CONDITION Parking brake set (TM 9-2320-361-10). Delivery pump draincock removed (para. 12-36). Delivery pump inlet tube removed (para. 12-33). Delivery pump outlet tube removed (para. 12-32). GENERAL SAFETY INSTRUCTIONS Keep fire extinguisher nearby when working on fuel 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. a. Removal 1. Remove setscrew (1) from delivery pump rear propeller shaft (8) and delivery pump shaft (5). 2. Remove four locknuts (6), screws (3), and delivery pump (2) from compartment shelf (4). Discard locknuts (6). 3. Remove key (7) from delivery pump shaft (5). Discard key (7). b. Installation 1. Install new key (7) in delivery pump shaft (5). 2. Position delivery pump (2) in compartment (4). 3. Install delivery pump rear propeller shaft (8) on delivery pump shaft (5) with setscrew (1). 4. Install delivery pump (2) in compartment shelf (4) with four screws (3) and new locknuts (6). 12-54