PACCAR 270 — Electrical

Safety Precautions General ensure that the negative (–) lead is dis- connected first and the positive (+) lead last ; reverse this procedure when re-connecting the batteries. To prevent accidental short circuits do not place tools/metal objects on or near the battery terminals. Batteries produce a highly flammable and explosive gas while being charged. It is essential that the area around the battery is well ventilated and protected against any flame, spark or intense heat source. The use of “boost” charg- ers is not recommended.

The ignition switch, steering lock, and its electrical circuits are designed to prevent the auxiliary circuits and starter motor from being energized while the steering lock is engaged. Serious con- sequences could result from alteration or substitution of the ignition switch and Batteries contain electrolyte (sulfuric acid) which is a highly corrosive and toxic substance. Accidental skin/eye contact with battery electrolyte can cause serious personal injury. Always wear protective clothing and suitable eye protection when handling batteries and wash hands after use. WARNING!

Battery posts, terminals and related acces- sories contain lead and lead compounds, chemicals known to the State of Cali- fornia to cause cancer and reproductive harm. Wash hands after handling. Always disconnect the batteries before commencing work on the vehicle. To minimize the risk of accidental short cir- cuits when disconnecting the batteries, Electrical Ensure that all personnel are clear of any rotating parts or moving compo- nents. Synthetic rubber seals, O-rings and gaskets which have been damaged by fire or come into contact with direct heat, may produce hazardous fumes and highly corrosive chemicals . Allow burnt or decomposed seals etc. to completely cool.

Use impervious pro- tective clothing and gloves. Work in a well ventilated area when handling these components. In the event of skin contact seek medical attention immediately. Components