Hypertherm DynaMAX 550P - Seal Maintenance Indicator (SMI)

Product description
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36 811390 Operator Manual DynaMAX 550P/560P/575P Waterjet Pump
Seal Maintenance Indicator (SMI)
Seal Maintenance Technology™ optimizes seal life. The SMI monitors the leak rate from the
intensifier. When a seal failure is possible, a warning shows on the operator interface and the
beacon light flashes.
When an intensifier seal begins wearing out, water and hydraulic fluid leak from the weep holes in
the high-pressure ends.
A drip tray, which is attached to the bottom of each side of the intensifier, collects fluid leaking from
weep holes.
From the drip tray, fluid flows through a clear tube to the SMI. When a drip passes an optical sensor,
a blue LED illuminates, showing which of the weep holes on the intensifier is the source of the drip.
The SMI is a monitoring device, not a measuring device.
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SMI tube
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Power LED (green)
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Drip sensor LED (blue)