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Cummins/Onan DG100S — THERMOSTAT AND PUMP

For the Cummins/Onan DG100S.

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Procedure

  1. Disconnect the negative (-) battery cable from
  2. Let the genset cool down and then drain the
  3. Remove the radiator access cover on the back
  4. Disconnect the two radiator hoses and with-

Source: manual:981-0540B Onan HDKCx (HDKCA to HDKCD) Mobile Diesel Genset Service manual (10-2006).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.