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Cummins/Onan — ENGLISH

A Cummins/Onan service procedure — check it applies to your exact model before use.

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Procedure

  1. 7. SPARK ARRESTER SPARK ARRESTER Always use with a spark arrester. Some areas require the use of a spark arrester. Please check your local laws and regulations before operating your product. The spark arrester must be cleaned regularly to keep it functioning as designed. A clogged spark arrester : • Prevents the flow of exhaust gas • Reduces engine output • Increases fuel consumption • Makes starting difficult If the engine has been running, the muffler and the spark arrester will be very hot. Allow the muffler to cool before cleaning the spark arrester. Maintenance interval Clean spark arrester every hundred(100) hours. How to remove the spark arrester
  2. 1. Remove the flange bolts from the muffler cover and remove the muffler cover.
  3. 2. Remove the special screw from the spark arrester and remove the spark arrester from the muffler. SPARK ARRESTER SCREEN MUFFLER MUFFLER COVER Clean the spark arrester screen Use a brush to remove carbon deposits from the spark arrester screen. Be careful to avoid damaging the screen. The spark arrester must be free of breaks and holes. Replace the spark arrester if it is damaged. Install the spark arrester, and muffler protector in the reverse order of disassembly. SPARK ARRESTER SCREEN

Source: manual:914-0109 Onan EGMBM Operators Manual (4-2008) .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.