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Home›Repair guides›Cummins/Onan›Permanent Magnet (PMG) Installation

Cummins/Onan QST30 — Permanent Magnet (PMG) Installation

Repair & overhaul

For the Cummins/Onan QST30, from the Cummins/Onan service manual.

Applies to: Cummins/Onan DFHA, Cummins/Onan DFHB, Cummins/Onan DFHC, Cummins/Onan DFHD, Cummins/Onan QST30, Cummins/Onan QST30 engine

Before you start

  • Highly magnetic rotor will attract stator core; avoid contact that may damage windings.

Procedure

  1. Install complete rotor assembly to end of main rotor shaft using hex head through-bolt.
  2. Locate stator housing to position on alternator endbracket. Fasten with 4 bolts and clamps.
  3. Connect PMG wiring harness connector.
  4. Install PMG assembly cover using three M5x12mm capscrews and lockwashers.
  5. HC6 Control Housing: Install control housing grille and access covers.

Full service-parts list: Cummins/Onan DFHA →, Cummins/Onan DFHB →, Cummins/Onan DFHC →, Cummins/Onan DFHD →, Cummins/Onan QST30 →

Source: Cummins/Onan service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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