INTRODUCTIONThis module gives information related to the electrical power systembasic line maintenance and necessary precautions to service and dispatchthe IDG. This information must fulfill a good A/C grounding and bonding,and keep batteries serviceable in a cold soak configuration through thefollowing tasks:- A/C electrostatic balancing for maintenance operations,- IDG oil servicing of general warnings and cautions,- visual inspection of the oil level,- check of the IDG oil-filter Differential Pressure Indicator (DPI),- IDG servicing-filling of the IDG with oil or addition of oil after a levelcheck,- cold weather maintenance for batteries.NOTE: As an example, and because of same IDG procedures on longrange A/C, only the A340 IDG will be shown in this module.ENVIRONMENTAL PRECAUTIONSAvoid use of the APU if APU BLEED air is not necessary. Turn-offunused ground service equipment (Ground Power Unit, airconditioning cart, etc...) if no work is being done or nobody is presenton the aircraft.A/C ELECTROSTATIC BALANCING FOR MAINTENANCEOPERATIONSWARNING: In order to prevent electrical shock:- do not wear a headset or touch cables/lines connected tothe A/C when there is a risk of lightning,- always connect the ground cable to the parking groundpoint before you connect it to the A/C.