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Home›Repair guides›6.1

Atlas Copco QAX 12-20-30 Dd — 6.1

For the Atlas Copco QAX 12-20-30 Dd.

Applies to: Atlas Copco QAX 12-20-30 Dd

Procedure

  1. Put a voltmeter in parallel with voltmeter P4 on the control panel.
  2. Check that the read-out of both voltmeters is the same.
  3. Stop the generator and disconnect one terminal.
  4. Check that the internal resistance of the voltmeter is high.

Source: manual:QAX 12-20-30 Inst 2006 .pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.