Northern Lights — Changing the Lube Oil Filter
Maintenance
From a Northern Lights owner's manual covering: NL445D, NL445D1, NL445T1, NL445T2, NL668T2. Check it applies to your exact model before use.
Applies to: Northern Lights NL445D1, Northern Lights NL445T1, Northern Lights NL445T2, Northern Lights NL668T2, John Deere 4045D150 / 4045T150 / 4045T250 / 6068T250 engine
Before you start
- Overtightening can damage the filter housing.
Procedure
- Use a filter wrench to remove the old filter and dispose of it in an approved manner.
- Make sure the gasket from the old filter is removed and discarded.
- Lubricate the rubber gasket on the new filter and screw it on until the gasket meets the sealing surface.
- Using hands only, tighten the filter three-quarters to one and one-quarter turn farther.
- Fill the engine with recommended oil, start the engine and check for leakage, then stop and recheck the oil level.
Tools required
- Filter wrench Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Full service-parts list: Northern Lights NL445D1 →, Northern Lights NL445T1 →, Northern Lights NL445T2 →, Northern Lights NL668T2 →, John Deere 4045D150 / 4045T150 / 4045T250 / 6068T250 engine →
Source: Northern Lights owner'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.