Hypertherm Powermax30 AIR Service Manual - Manual (Page 89)

Powermax30 AIR Service Manual 808850 89
5 – Troubleshooting and System Tests
Test 7 – torch cap-sensor
Test the torch cap-sensor switch and torch leads.
1. Set the power switch to OFF (O), and disconnect the power cord from the power source.
2. Remove the power supply handle and cover. See Remove the power supply cover on page 98.
3. Remove the component barrier. See Remove the component barrier on page 100.
4. Detach the front panel. See Detach the front panel on page 102.
5. Disconnect the cap-sensor connector at J12 on the heatsink side of the power board by pushing the tab on the
connector toward the plug and pulling the plug out.
Figure 17
6. Measure the resistance from the blue wire (pin 1)
to the orange wire (pin 2) . It should measure less
than 10 Ω. If it measures high resistance, the
cap-sensor switch circuit is open.
7. Make sure the torch plunger moves smoothly. If it
does not, replace the torch body. See Replace the
torch body on page 193.
8. Make sure the consumables are correctly installed.
Adjust the consumables if necessary.
9. If the torch parts mentioned in step 7 and step 8 are
working properly, the cap-sensor switch is faulty or
the torch lead has a broken wire. Replace the faulty
part. See
Replace the cap-sensor switch on
page 196 or Replace the torch lead and strain relief
on page 144.
Push tab toward plug
1
2
1
2