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Cummins/Onan HDZAA — Service Procedure

For the Cummins/Onan HDZAA.

Applies to: Cummins Onan Hdzaa

Procedure

  1. Disconnect the DC cables (p. 4-5)
  2. Disconnect the fuel lines.
  3. Remove the outer housing (p. 4-3).
  4. Remove the muffler.
  5. Disconnect the AC wiring harnesses.
  6. Remove the inner housing assembly.
  7. Remove the Engine/PMA assembly from the

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.