Northern Lights — V-Belt Tension Adjustment

Adjustments

From a Northern Lights operator's manual covering: NL378, NL378x, NL484, NL488x, NL498x. Check it applies to your exact model before use.

Applies to: Northern Lights NL378, Northern Lights NL378x, Northern Lights NL484, Northern Lights NL488x, Northern Lights NL498x

Procedure

1. Check tension and wear on the V-belt after every 50 hours.
2. Press on the belt at the midpoint between crankshaft and alternator pulleys with your thumb.
3. Tension is correct if belt can be depressed about 3/8 in. (10 - 15 mm).

Full service-parts list: Northern Lights NL378 →, Northern Lights NL378x →, Northern Lights NL484 →, Northern Lights NL488x →, Northern Lights NL498x →

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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