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Home›Repair guides›Cummins/Onan›Testing the Exciter Stator

Cummins/Onan 1750DQKB — Testing the Exciter Stator

Testing & diagnosis

For the Cummins/Onan 1750DQKB, from the Cummins/Onan service manual.

Applies to: Cummins/Onan 1750DQKB, Cummins/Onan DQKB, Cummins/Onan DQKC

Procedure

  1. Measure winding resistance between the two stator leads, F1 (X) and F2 (XX), with a Wheatstone bridge or digital ohmmeter.
  2. Replace the stator if winding resistance is not as specified in Tables 4-2/4-3.
  3. Disconnect exciter stator leads F1 and F2 from connectors and isolate from ground.
  4. Connect the megger between one lead and ground and conduct the test per Table 4-1.

Tools required

Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.

Specs & values

  • Use Table 4-1 for megger voltage selection

Full service-parts list: Cummins/Onan 1750DQKB →, Cummins/Onan DQKB →, Cummins/Onan DQKC →

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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