Northern Lights NL488K2 / NL488W2 — Cooling System Flushing
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
- Allow engine to cool before working on cooling system. Open filler cap carefully.
Procedure
- Flush every 2000 hours or every 12 months, whichever comes first.
- Remove radiator cap and open drains on radiator and engine block.
- Pour clean water into radiator until water runs clear.
- Close radiator drain; continue flushing until engine drain water is clear.
- Drain completely; close drains; refill with 50/50 water/ethylene glycol mix.
- Check hoses and connections; repair leaks.
- Start engine, run five minutes, shut down; check coolant level.
Specs & values
- 50% water / 50% ethylene glycol antifreeze mix.
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.