REV CSection 4 • Repair Procedures June 20054 - 30 TMZ-34/19 Part No. 52075GROUND CONTROLS5-7Interacter Battery ChargerThe Interacter 24/25 battery charger, used onmachines before serial number T3403-131, is athree-stage, microprocessor-controlled 24V 25Acharger, with short circuit and reverse batteryprotection, constant current, and constant voltagewith temperature compensated charging voltage.There is no need to switch off the charger once thebatteries are charged, as the charger senses thecondition of the batteries and automaticallyswitches into a float or standby mode.The charger is protected with a 10A slow blowingfuse, located behind a small panel just below theAC input connector.There are 7 LEDs on the front panel, anycombination of which indicates the state of batterycharge or charger operating condition. Listed in thenext column, in order from top to bottom as seenon the charger case, is an explanation of whatthese LEDs indicate.When using the charger, be sure the AC supplycircuit is grounded.Callout LED Description20-25A Red Illuminates when charge currentis 80% of chargers nominal rating.15-20A Red Illuminates when charge currentis 60% of chargers nominal rating.10-15A Red Illuminates when charge currentis 40% of chargers nominal rating.5-10A Red Illuminates when charge currentis 20% of chargers nominal rating.NOTE: If the batteries are fullydischarged, all of the above listedLEDs will illuminate at the sametime; if the batteries are not fullydischarged, not all will illuminate.Charge Red Illuminates when battery isconnected correctly and AC poweris present. LED turns off whenbattery reaches first voltage limit.80% Yellow Illuminates during charging whentimer is running; battery voltage isheld constant at this while this LEDis on, minimum one hour OR onehour plus half time required toreach first voltage limit.Ready Green Illuminates at end of chargingcycle, indicating batteries arecharged and ready for use, andwill remain on as long as AC powerand batteries remain connected,maintaining charger in float orstandby mode.NOTE: If the Green LED flashesconstantly at the end of the charge,this indicates an override timeoutfault condition, which happens ifthe charge cycle is not completedwithin 18 hours of charge start,after which the charger will notoutput any current. This is causedby a charger low output currentfault OR a shorted cell in a battery.Current settings Normal Liquid GelFirst voltage limit 29V 31V 28VFloat / Standby 27.6V 27.7V 27.5Va LEDsb on/off switchc AC input connectord fuse panel20-25A15-20AREADY10-15A5-10ACHARGE80%ONRESETabcd800-610-4101ActionRental.com