HyPrecision 50S/60S/75S Operator Manual 808690 159
7 – Troubleshooting
Troubleshooting
Intensifier
Stroking problems
The intensifier usually strokes faster during startup and when changing from pierce-pressure mode to
cut-pressure mode.
The motor’s wattage and the size of the hydraulic pump determine the maximum intensifier stroke rate.
The intensifier does not stroke to either side
Take these actions:
Make sure that the intensifier is enabled.
Make sure that the cutting head is turned on.
Look at the proximity switch lights. If both amber lights are on at the same time, a proximity switch might have
failed, an indicator spring might be broken, or an indicator pin might be stuck. Inspect all parts to find the
cause of the fault.
Examine the cord ends on the proximity switches for damage.
Make sure that the indicator pins and springs are not damaged.
The intensifier strokes to 1 side and then stalls on the same side
Take these actions:
Exchange the proximity switches with each other (but not the wires).
Replace the proximity switches.
Examine the indicator pin for burrs. The pins should move freely to the bottom of the bore.
Make sure that the indicator pin springs are not broken and that they are the same length.
While the pump is in cooling mode, touch the box on the operator interface that matches the side the of the
intensifier stall. If the intensifier strokes to the opposite side, the problem is electrical. If the intensifier does
not move, the problem is mechanical.
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