TM 5-3810-306-20CAUTIONWhen oils are changed or added,ensure that oils of differentmanufacturers are to MIL-L-2104grade 10.NOTEDraining the various components willrequire connecting a drain line inplace of the disconnected return line.a. Disconnect return line from lift cylinder and raiseboom to maximum elevation.b. Connect cylinder return line and lower boom toits stowed position. Refill hydraulic reservoir asrequired.c. Disconnect return line from an outriggerextension cylinder and fully extend outrigger.d. Connect outrigger return line and retractoutrigger. Refill hydraulic reservoir as required.e. Repeat steps c and d for remaining threeoutriggers.CAUTIONWhen draining the jack cylinders,always operate either both front orboth rear cylinders together toprevent twisting the crane.f.Disconnect return lines from front outrigger jackcylinders and activate cylinders to theirmaximum down position.g. Connect return lines and raise jack cylinders tostowed position. Refill hydraulic reservoir asrequired.h. Repeat steps f and g for rear outrigger jackcylinders.i.Disconnect return line from telescope cylinderand fully extend boom.j.Connect return line and retract boom. Refillhydraulic reservoir as required.k. Disconnect return lines from both front steercylinders and turn front wheels to extreme right.l.Connect return lines and turn front wheels toextreme left and then back to center. Refillhydraulic reservoir as required.m. Repeat steps k and 1 for rear steering cylinders.n. Return crane to travel mode (all cylindersretracted and boom over the front).3.DRAIN AND REFILL HYDRAULIC RESERVOIRWITH FRESH OIL, MIL-L-2104, GRADE 10.4.START ENGINE AND OPERATE ALL CRANEFUNCTIONS. CHECK AND REFILL RESERVOIRAS REQUIRED.END OF TASK16-51
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