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

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

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Before you start

  • I. WIRE TRANSFORMER TII a TIZ AS
  • FOLLOWS
  • FOR 480V. CONNECT T B F I O T O T 1 1 4
  • FOR 208V.CONNECT 187-10 T O T l l - 3
  • 1 6 7 - e TO T i e - e
  • FOR 240V.CONNECT 7 8 7 - 1 0 TOT11 -4
  • FOR EOV. CONNECT TB7-IO TO 111-2
  • T 8 7 - 8 T O T I P - 9

Procedure

  1. 12
  2. 0164
  3. 1.3
  4. 2
  5. 8 TOTIZ-IO
  6. 8 TOTIZ-11
  7. Open the cabinet door of the automatic transfer
  8. Move the operation selectorswitch to "STOP" (on
  9. Disconnect the battery cables of the starting
  10. Remove the AC line voltage from the automatic
  11. Remove thecontrol disconnect plug and open the
  12. 400 ampere AT only: Remove one screw from the
  13. Remove generator, line and load connections
  14. Connect single-phase generator, line, and load

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.