Winco — Dual Element Air Filter Service
Maintenance
From a Winco service manual covering: WL12000HE-03/A, WL12000HE-03/B, WL12000HE-03/C, WL12000HE-03/D. Check it applies to your exact model before use.
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Before you start
- Never start or run the engine with the air filter removed
Procedure
- Unsnap the air cleaner cover latches and remove the cover
- Remove the wing nut
- Remove the paper filter element and foam element from the air cleaner case
- Remove the foam filter element from the paper filter element
- Inspect both filter elements and replace if damaged; always replace paper element at scheduled interval
- Tap the air filter to loosen debris; use compressed air not exceeding 30 psi from inside to outside
- Wash the foam element in liquid detergent and water, air dry, then dip in clean engine oil and squeeze out excess
- Clean dirt from inside the air cleaner body and cover
- Reinstall filter making sure packing is in place, tighten wing nut securely
- Install and secure the cover
Source: Winco service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.