John Deere — Remove final filter.
A John Deere service procedure — check it applies to your exact model before use.
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Procedure
- 7. Replace parts as necessary.
- 8. Install filter base on engine cylinder head. Tighten cap screws to specifications.
Source: manual:CTM170.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.