Northern Lights M38C3 / M944 — Bleeding Fuel System
Maintenance
For the Northern Lights M38C3 / M944, from the Northern Lights operator's manual.
Applies to: Northern Lights M38C3, Northern Lights M944
Before you start
- Escaping diesel fuel under pressure can penetrate skin causing serious injury.
Procedure
- Loosen air vent plug on fuel filter about 1-1/2 turns; cover vent with cloth.
- Turn priming pump cap counterclockwise to unlatch it.
- Move priming pump plunger up and down.
- Close air vent plug when no air bubbles are seen.
- To bleed injection pump, loosen its air vent plug about 1-1/2 turns.
- Pump feed pump cap up and down until no air bubbles appear.
- Push down priming pump cap and turn clockwise to lock.
- If engine does not start, loosen fuel line at injector and crank until pure fuel escapes.
Full service-parts list: Northern Lights M38C3 →, 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.