Northern Lights — SP-5 V-Belt Tension Check
Adjustments · Alternator drive V-belt
From a Northern Lights operator's manual covering: M30, M38C3, M38C3F, M40C3F, M944. Check it applies to your exact model before use.
Applies to: Northern Lights M30, Northern Lights M38C3, Northern Lights M38C3F, Northern Lights M40C3F, Northern Lights M944
Procedure
- Check tension and wear on the V-belt after every 50 hours.
- Press belt with thumb at midpoint between crankshaft and alternator pulleys.
- Tension is correct if belt can be depressed about .39 to .47 in. (10 - 12 mm) with 22 lbs. (10 kg) force.
Specs & values
- Deflection .39 to .47 in. (10 - 12 mm) with 22 lbs. (10 kg) force
Full service-parts list: Northern Lights M30 →, Northern Lights M38C3 →, Northern Lights M38C3F →, Northern Lights M40C3F →, 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.