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Cummins/Onan — Service Procedure

For these Cummins/Onan models: 3.6MKY, 4MKY.

Applies to: Cummins Onan 3 6Mky, Cummins Onan 4Mky

Before you start

  • EXHAUST GAS IS DEADLY! The ex-
  • Overheating can result in engine
  • EXHAUST GAS IS DEADLY! Modify-

Procedure

  1. Remove the fan housing assembly (Steps 1
  2. Use a brush or low pressure compressed air to
  3. Remove the top and bottom air guide housings
  4. Use a brush or low pressure compressed air to

Source: manual:981-0531 Onan MKY Spec J Pontoon Service Manual (8-1999).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.