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Adjustments
Belt Adjustments
Check condition and tension of belts after every 100
hours of operation. Replace belts as required.
Alternator Belt
The alternator belt should be tensioned so when it is
pressed firmly with thumb, midway between pulleys, it
deflects .25 inch (6.4 mm).
1. To adjust belt tension, loosen bolt securing brace to
engine, bolt securing alternator to brace and alternator
mounting bolt.
2. Rotate alternator away from engine.
3. Hold alternator in position after proper belt tension
setting is achieved and tighten alternator and brace
bolts to secure adjustment.
Cooling & Governor Fan Belts
The cooling and governor fan belts belt should be ten
sioned so when they are pressed firmly with thumb, mid
way between pulleys, they deflect .38 inch (9.7 mm).
1. To adjust belt tension, loosen upper and lower nuts
securing idler arm to front engine mount.
2. Pull out on idler arm until desired belt tension is
achieved.
3. Tighten mounting nuts to secure adjustment.
Groundsmaster 3000
1
Page 3 – 3
Figure 1
1. Cooling Fan Belt
2. Governor Fan Belt
Ford VSG–411 Engine
2
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