3.4 ELECTRONIC MONITORING AND CONTROL SYSTEM ECS OPERATION Fault No. 884: (887) $h: Faulty monitor channel for charge- /discharge cur- rent. Help: The monitor channel for charge-/discharge current shows inadmissible values. - Check frequency converter E7 and shunt R3. Fault No. 890: (893) $h: Fan drive oil filter oil cooler 1 restricted Help: - Replace filter element. Fault No. 896: (899) $h: Battery charging circuit failure Help: The ECS detects a battery charging current with the machine turned off. - Check battery charging circuit for separate feeding. Fault No. 902: (905) $h: Load of the batteries too high Help: Too much current is being taken from the batteries.
- Check board net for short circuit. - Switch off unnecessary consumers. Fault No. 908: (911) $h: Batteries are not being charged Help: - Check charging circuit for broken cables. - Switch off unnecessary consumers. Fault No. 914: (917) $h: Battery charging current too high Help: - Check boardnet for short circuit. - Check generator and batteries. Fault No. 920: (923) $h: Faulty monitor channel for oil temperature of PTO gear 2 Help: Temperature sensor B49-2 for PTO gear oil shows inad- missible values. - Check sensor and cables. 168