Safety - Section 22 OM2214 Page 22-4 Warnings and Cautions A plate on the side of the hydraulic tank furnishes instructions for filling the hydraulic tank. Keep the system open to the atmosphere only as long as absolutely necessary to lessen chances of system contamination. Service the tank with clean type C-4 hydraulic oil. All oil being put into the hydraulic tank is to be filtered through three micron filters. A caution decal is attached below the hydraulic tank oil level sight gauge. Check the level with the body down, engine stopped, and key switch OFF. Add oil per filling instructions, if the oil level is below the top of the sight glass.
A warning plate is attached to the frame above the hydraulic system quick disconnect fittings to alert technicians that high pressure hydraulic oil is present during operation. Use caution when it is necessary to open the hydraulic system. There is always a chance of residual pressure being present. Open fittings slowly to allow any pressure to bleed off before removing any connections. Any operating fluid, such as hydraulic oil, escap- ing under pressure can have sufficient force to enter a person's body by penetrating the skin. Serious injury and possibly death may result if proper medical treatment by a physician familiar with this injury is not received immediately.