Download and fillout the coolant pump Inspection Report Checklist below before replacing any parts.
|Symptom||Possible Cause||Corrective Action|
|Alarm 151 LOW THROUGH SPINDLE COOLANT||There is an electrical fault with the TSC power supply.||Inspect the contactors.|
|There is no incoming voltage.||Check the incoming power.|
|The TSC pressure sensor does not work. Some coolant flow may occur if this is the case.||Test and troubleshoot the coolant pressure sensor.|
Low coolant flow, no alarm.
Low coolant flow, the pump cavitates (cavitation sounds like heavy grit in the pump head, or a suction sound) or is otherwise noisy
|The coolant does not return to the coolant tank fast enough.||Remove chip buildup from the coolant return path.|
|The coolant level drops in the auxiliary filter tank while the machine is in operation.||Check for leaks and inspect the gasket.|
|The auxiliary filter is dirty.||Clean or Replace the auxiliary filter.|
|Air is trapped in the coolant pump.||Cycle the pump power.|
|The vacuum generator, or air bleed valve, valve on the pump does not operate correctly.||Clean the vacuum generator assembly, or air bleed valve.|
|Chips clog the supply hose.||Remove all chips from the supply hose, the fittings, and the pipes.|
|The output hose touches the machine enclosure.||Move the coolant output hose. Vibration from the hose can cause noise.|
|The pickup hose fittings are loose.||Tighten the pickup hose fittings.|