Northern Lights NL498D2 / NL498K2 — Adjust V-Belt Tension

Adjustments · Alternator drive belt

For the Northern Lights NL498D2 / NL498K2, from the Northern Lights operator's manual.

Applies to: Northern Lights NL498D2

Procedure

1. Check V-belt tension and wear every 50 hours.
2. Press belt with thumb at midpoint between crankshaft and alternator pulleys.
3. Correct deflection is about 10-14 mm at point A, 7-10 mm at point B, and 9-13 mm at point C for a belt run more than 5 minutes.
4. Loosen bolt in tensioning arm and move alternator to tighten belt.
5. If belt is replaced, run engine 5 minutes and re-adjust if needed.

Full service-parts list: Northern Lights NL498D2 →

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.

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