Northern Lights NL488K2 / NL488W2 — Bleeding the Fuel System
Maintenance
For the Northern Lights NL488K2 / NL488W2, from the Northern Lights operator's manual.
Applies to: Northern Lights NL488K2, Northern Lights NL488W2
Before you start
- Escaping diesel fuel under pressure can penetrate skin causing serious personal injury.
- Use a piece of cardboard or wood, not hands, to search for leaks.
Procedure
- Loosen bleed screw on top of fuel filter.
- Pump hand primer on fuel lift pump until pure fuel escapes.
- Tighten bleed screw.
- Loosen bleed screw on injection pump; pump until pure fuel escapes; tighten.
- If engine does not start, loosen fuel line at injector and crank until pure fuel escapes; tighten.
- After start, check for leaks with cardboard; do not use hands.
Tools required
- Cardboard or wood Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Full service-parts list: Northern Lights NL488K2 →, Northern Lights NL488W2 →
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.