TM10-3930-660-20 18-15. CARRIAGE TILT CYLINDER - REPLACE (Cont’d) At operating temperatures, is hot and under pressure. hydraulic oil Hot oil can cause  injuries. Allow hydraulic oil to cool before disconnecting any hydraulic lines. 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. Always retract a hydraulic cylinder prior to removal. This will protect the cylinder  rod. If more than one hydraulic line is to be removed, identify lines to assure proper installation. Use suitable container to catch any hydraulic oil that may drain from  system. 8. 9. TAG AND DISCONNECT THREE HYDRAULIC HOSES  (11). a. Tag three hydraulic hoses (11). b. Disconnect three hydraulic hoses (11) from carriage tilt cylinder (12) to be removed. SUPPORT BASE END OF CARRIAGE TILT CYLINDER WITH A HOIST AND SLING. 18-60