Facts About Generators
GeneratorsDirectoryCompareRepairEnginesControllersPartsManufacturersGuides
Search models or part #
Home›Repair guides›Service Procedure

Cummins/Onan AT U C D ‘400 - 4X / 11 10 C — Service Procedure

For the Cummins/Onan AT U C D ‘400 - 4X / 11 10 C.

Browse Cummins/Onan generators & specs →

Procedure

  1. Open the cabinet door.
  2. Move operation selector switch to “STOP” (on
  3. Remove AC line voltage from the automatic
  4. Remove the twist-lock disconnect plug and open
  5. Install keying plug(s),#332-2114for begin.SpecC
  6. Insert the new module in,the control accessory
  7. Restore AC line voltage to the automatic transfer
  8. Close the controt accessory panel and reconnect
  9. Move the operation selector switch to “RMT” (on
  10. Close cabinet door.

Source: manual:962-0500 Onan AT (spec A-C) Transfer Switch Service Manual (08-1979).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.