40 HyPrecision Predictive waterjet pump Operator Manual 810120
2 – Product description
Product description
Seal Maintenance Indicator (SMI)
Seal Maintenance Technology™ optimizes seal life. 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 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.
The SMI is a monitoring device, not a measuring device.
Beacon light
The beacon light flashes green during the start sequence. The light is steady green when the system is at
operating pressure.
An amber light flashes to signal a warning condition.
A red light flashes to show that a fault has occurred.
The light is off when the pump is in cooling mode.
1
SMI tube
2
Power LED (green)
3
Drip sensor LED (blue)
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