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Atlas Copco QAX 12-20-30 Dd — High fuel consumption

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

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

Procedure

  1. Restriction in air filter/cleaner or induction system.
  2. Fault in atomisers or atomisers of an incorrect type.
  3. Fault in cold start system.
  4. Wrong type or grade of fuel used.
  5. Restricted movement of engine speed control.
  6. Restriction in exhaust pipe.
  7. Engine temperature is too low.
  8. Incorrect valve tip clearances.

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.