14
Hoverprobe Refurbishment
4.
Hoverprobe Test
33.
There should be no interference to the weight when lifting it up by hand.
34.
Connect the probe to the Film Weight Gauge and supply the air pressure = 5 bar
(75 psi). Check that there is no unusual noise which may indicate a leak in the air
system.
Note: the air switch is designed to constantly bleed a small amount of air.
35.
The little holes in the hoverplate should be clean and the base of the hoverplate
should be flat.
36.
When hovering, with 5 bar (75 psi), over a flat sheet and pressing down on the
hoverprobe no friction with the sheet should be felt.
37.
Clean the probe tip by hovering it on to a clean A4 sheet of paper and release it.
Now slowly pull out the sheet out to take off any impurities on the probe tip.
38.
SI9550 ONLY: Check for lightening of LED and the 5 second time delay. Press the
button on the Hoverprobe. The LED should go red. Now release the button.
After approximately 5 sec. the LED should turn off and the display on the gauge
should either flash once or a bar should appear underneath the reading to
indicate a reading has been taken.
39.
Carry out a function test on the Hoverprobe with a sheet with a known film
weight.