Northern Lights — Change secondary fuel filter

Maintenance

From a Northern Lights operator's manual covering: M30, M38C3, M38C3F, M40C3F, M944. Check it applies to your exact model before use.

Applies to: Northern Lights M30, Northern Lights M38C3, Northern Lights M38C3F, Northern Lights M40C3F, Northern Lights M944

Procedure

1. Change engine-mounted filter every 250 hours or as necessary.
2. Remove filter with filter wrench.
3. Coat new filter O-ring with fuel.
4. Tighten new filter by hand; do not use wrench.
5. Do not prefill filter; bleed air after installation.

Full service-parts list: Northern Lights M30 →, Northern Lights M38C3 →, Northern Lights M38C3F →, Northern Lights M40C3F →, Northern Lights M944 →

Source: Northern Lights operator's 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.

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