TM10-3930-660-20 18-16. MLRS  ATTACHMENT  CYLINDER - REPLACE This task covers: a. Removal b. Installation Initial Setup TOOlB Materials/Parts Shop Equipment, Automotive Anti-seize Compound (App. C, Item 9) Maintenance, Common #2 Less Power Container, 1 Gal. Locknut (9) Lifting Device, 2 Ton Capacity Lockwashers (2, 4, 12) Loctite 242 (App. C, Item 39) Cap and Plug Set Tags (App. C, Item 51) Personnel  Required Three  Personnel Equipment  Condition Vehicle parked on level ground. Reference Parking brake set. TM10-3930-660-10 Wheels blocked. Boom extended approximately three feet. MLRS attachment cylinder in fully retracted position. MLRS attachment forks level. MLRS attachment approximately 2“ off ground. WARNING WARNING Hydraulic oil, in the system can be under pressures over 3000 psi with the engine OFF. ALWAYS relieve pressure in hydraulic lines before attempting to remove any component in the hydraulic system. With engine OFF, starter switch in RUN position, and MLRS attachment on the ground, move control levers through all operating positions several times to relieve line pressure. Relieve pressure in hydraulic oil tank by loosening filler cap very slowly. Failure to follow these precautions could result in serious personal injury. At operating temperatures, hydraulic oil is hot and under pressure. Hot oil can cause injuries. Allow hydraulic oil to cool before disconnecting any hydraulic lines. CAUTION Wipe the area clean around all hydraulic connections to be opened during removal and disassembly. Cap oil lines and plug holes after removing lines. Contamination of the hydraulic system could result in premature failure. 18-63