Cummins/Onan OT-A-4060A / OT-C-10050C — Programming the Change-over Clock
Operation
For the Cummins/Onan OT-A-4060A / OT-C-10050C, from the Cummins/Onan service manual.
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Procedure
- Slide the output selector switch to the center position for program control.
- Set the time of day using the clock, h, m, 1-7, and Pr buttons.
- Press the I/O button; an "I" appears for the contact-closing time.
- Press the h and m buttons to set the contact-closing hour and minute.
- Press the 1-7 button and press the Q button when the indicator is over each desired day.
- Press the I/O button; an "O" appears for the contact-opening time.
- Press the h and m buttons to set the contact-opening hour and minute; hold contacts closed for five minutes.
- Press the 1-7 button and press the Q button when the indicator is under each desired day.
- Press the Pr button to enter the complete program; the display returns to time of day.
- Repeat to enter more programs; a maximum of ten programs can be entered.
Specs & values
- 7-day, 24-hour clock; up to ten change-overs a week
- Program the clock to hold the contacts closed for five minutes
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.