TM 10-3930-669-20 WARNING · High-pressure   hydraulics   [oil   under   3,000   psi   (20,700   kPa)   pressure]   operate   this equipment.      Refer   to   vehicle   operator   and   maintenance   manuals   for   hydraulic   oil pressure.  Never disconnect any hydraulic line or fitting without first dropping pressure to zero.  Failure to comply may result in injury to personnel. · Hydraulic oil is slippery and can cause falls.  To avoid injury, wipe up spilled oil with rags. VISUAL INSPECTION Inspect lift cylinder(s). (a) If lift cylinder(s) leaks, cylinder(s) is faulty.  Notify DS Maintenance. (b) If lift cylinder(s) is not damaged   and   does   not   leak, lift cylinder(s) is OK. VISUAL INSPECTION Inspect lift control cable for damage. (a) If   cable   is   damaged,   replace lift control cable (Para 17-3). (b) If cable is not damaged, adjust cable (Para 17-3). 2-477