TM 9-2320-361-20 12-36. DELlVERY PUMP DRAINCOCK REPLACEMENT This task covers: a. Removal b. Installation INITIAL SETUP: APPLICABLE MODELS EQUIPMENT CONDITION M49A2C, M50A2, M50A3 Parking brake set (TM 9-2320-361-10). MATERIALS/PARTS GENERAL SAFETY INSTRUCTIONS Rubber seal (M49A2C, M50A2) Keep fire extinguisher nearby when working on fuel REFERENCES (TM) 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. NOTE Have drainage container ready to catch fuel. Seal is only used on M49A2C and M50A2 vehicles. 1. Remove draincock (2) and rubber seal (3) from pump adapter (4). Discard rubber seal (3). 2. Remove pump adapter (4) from drain pipe (1). b. Installation 1. Install pump adapter (4) on pump drain pipe (1). 2. Install new rubber seal (3) and draincock (2) to pump adapter (4). 12-56