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Cummins/Onan ES2017-4s — Genset Disconnection for Service

For the Cummins/Onan ES2017-4s.

Applies to: Cummins Onan Es2017 4S

Before you start

  • WARNING: Always disconnect negative battery cable first to prevent accidental starting.

Procedure

  1. Disconnect battery cables (negative [-] cables first).
  2. Close all fuel shutoff valves.
  3. Disconnect electrical wiring and connectors.

Source: manual:981-0529 Onan MKY Pontoon Service Manual (1-1999).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.