Safety - Section 22 OM2228 Page 22-4 Warnings and Cautions A warning plate is attached to the frame above the hydraulic system Auxiliary Power Unit (APU) quick disconnect fittings. The plate alerts technicians that high-pressure hydraulic oil is present during opera- tion. Use caution when opening the hydraulic sys- tem. There is a chance of residual pressure being present. Loosen the fittings slowly to allow pressure to dissipate before removing any connections. Attached to the exterior of the battery compartment is a danger plate. This plate stresses the prevention of sparks near the battery.
When another battery or 24VDC power source is used for auxiliary power, all switches must be OFF prior to connecting. Maintain correct polarity: connect the positive (+) posts together and then connect the negative (-) lead of the auxiliary power cable to a good frame ground. DO NOT connect to the negative posts of the truck bat- teries. DO NOT connect near the battery box. These precautions minimize the danger of sparks near the batteries. Sulfuric acid is corrosive, toxic, and explosive. Use safety goggles, rubber gloves, and a rubber apron when working near batteries. If battery electrolyte is splashed into the eyes or is ingested, get the proper medical attention immediately.
Pressurized hydraulic fluid may penetrate the skin. Serious injury and death may result if proper medical treatment from a physician famil- iar with this injury is not received immediately. This plate is located on the battery box near the bat- tery disconnect switches, and indicates that the bat- tery system is a negative ground system. A warning instruction is located below the parking brake and brake lock switches, which are located to the right of the steering column on the instrument panel. Pushing the top of the rocker-style switch turns the function ON; pushing the bottom, turns it OFF.
These decals are placed above the battery discon- nect switches on the right side of the front bumper to indicate the OFF and ON positions of the switches.