Northern Lights — Before starting checks
Operation · Generator set
From a Northern Lights operator's manual covering: M16, M20, M20C, M844, M844L, ML844, ML844L, NL844. Check it applies to your exact model before use.
Applies to: Northern Lights M20C, Northern Lights M844, Northern Lights M844L, Northern Lights ML844, Northern Lights ML844L, Northern Lights NL844, Northern Lights 844 / 844L engine, Northern Lights 844L engine
Before you start
- Use protective clothing and open the filler cap carefully when the engine is warm to prevent burns.
- The battery switch must always be kept ON while the engine is running.
Procedure
- Check the water level by removing the pressure cap from the expansion tank or radiator.
- Check the oil level in the crankcase with the dipstick; level must be in the waffled area.
- Check the fuel tank level and open any fuel valves.
- Marine sets: close the seacock, check and clean the sea strainer and reopen the seacock.
- Marine sets: place the battery switch in the ON position.
Specs & values
- Cooling water level about 1 in. (2.5 cm) below the filler cap sealing surface when engine is cold
Full service-parts list: Northern Lights M20C →, Northern Lights M844 →, Northern Lights M844L →, Northern Lights ML844 →, Northern Lights ML844L →, Northern Lights NL844 →
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.