Engine Air Cleaner - Change Secondary Element

IMPORTANT: Never run the engine without the primary and/or secondary air cleaner element!

IMPORTANT: Do not attempt to clean secondary element; only ever replace it with a new one.

NOTE: The secondary filter must be changed no later than at every fourth change of the primary filter, or every 4500 hours or 3 years. See "Service the Engine Air Cleaner and Cab Air Filters" in Section 126

Open flap (A) and remove primary filter (B).

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Replace the secondary element (C) and make sure it is properly seated.

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Install the primary filter and close the flap.