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Cummins/Onan — CAUTION

For these Cummins/Onan models: C13N6H, C13N6H (Spec A), C17N6H, C17N6H (Spec A), C20N6H, C20N6H (Spec A), C20N6HC, C20N6HC (Spec A).

Applies to: Cummins Onan C13N6H, Cummins Onan C17N6H, Cummins Onan C20N6H

Procedure

  1. 1. Seal all penetrations/fittings with plugs except for one.
  2. 2. For the remaining penetration, fit up a regulated pressure source with a

Source: manual:Cummins_Power_Generation_Genset_Service_Manual_RS13A-RS20AC.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.