Yanmar SK1550, Operator'S Manual

Page: 77 / 99

Service - 76
SK1550 Operator’s Manual
Procedures
Belt, Fan
Check at 50 hours and every 250 hours thereafter.
Adjust tension as needed. Change every 500
hours.
Check
Check for excessive slack, damage, or wear. Belt is
properly tensioned when it moves about 1/4-3/8”
(7-9mm) when pushed at long span (shown).
Adjust Tension
1. Loosen two alternator bolt (1, 2).
2. Adjust position as needed.
3. Tighten bolts.
4. Check tension.
Change
1. Loosen two alternator bolts (1,2).
2. Replace fan belt.
3. Adjust position as needed.
4. Tighten bolts.
5. Check tension.
1
2
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