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Cummins/Onan HDZAA — Check the popping pressure and replace as

For the Cummins/Onan HDZAA.

Applies to: Cummins Onan Hdzaa

Procedure

  1. The engine is worn. Refer to Engine Workshop
  2. Verify that the battery is fully charged and that
  3. Check for 12 VDC at Pin 12 of the 12-pin con-

Source: manual:983-0502 Onan HDZAA (spec A-B) Diesel Genset Service manual (06-2010).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.