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Cummins/Onan — Service Procedure

For these Cummins/Onan models: OT, OT UCD 280.

Applies to: Cummins Onan Ot Ucd 280

Procedure

  1. 3. Measure the battery voltage. If voltage is above the recommended float voltage, proceed to Step
  2. 4. If the voltage is below the recommended float voltage, proceed to Step 6.

Source: manual:962-0102 Onan OT 100 to 280A Spec C 400 to 1000A Spec B Operators Manual (2-1980).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.