Simple Solutions That Work! Issue 10

Contact: CHRIS DOERSCHLAG [email protected] TROUBLE SHOOTING GUIDE CONDITION POSSIBLE CAUSE Receiving bin not being filled when empty. Transporter is not ON. Transporter is in fault condition. PLC is not in run mode. Bin level probe defective. Level probe cable damaged. Level probe out of calibration. Pinch valve not opening (in multi-bin systems) . Bin fill selector switch is in the off position (in multi-bin systems) . Sand fill time too long. Fill time timer needs adjusted. Wet sand. No sand in supply bin. Sand inlet blocked. Vessel not vented. Open/Close inlet valve solenoid not working. Quick exhaust valve not opening. Transport time too long. Insufficient air pressure. Inlet cone not closed. Vent cone not closed. Air spring not inflated. Leaking main seal. Leaking vent seal. Discharge flap proximity switch defective. Air flow control valve not adjusted properly. Discharge flap leaf spring broken. Leaks in transport pipe. Transport pipe blocked. Excessive dust in sand. Receiving bin level probe not reading full. Pinch valve not open. More than one pinch valve open (in multi-bin systems) . Transport cycle ends prematurely. High blow time alarm set too low. Discharge flap proximity switch defective. Blow tank pressure on solenoid not open. Main air valve solenoid not open. Capacity decreases. Main air supply pressure changed. Wet sand. Dirt build up on orifice ring. Main air supply filter plugged. Worn vent cone or vent cap. Flow control valve setting changed. Main air valve solenoid not open. Lumps or debris in sand supply: (Inlet valve cone cannot close tightly causing air leaks) . Worn discharge flap or damaged discharge nozzle. Transporter delivers product to more No air pressure at fill valve. than one bin during a single blow Air pressure at fill valve set to low. (for multi-bin systems). Fill valve solenoid Spool is in vent position. Damaged fill valve sleeve (replace) . 43