Specifications

DFP4 2011 Operation Manual
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6.3.3. Tensioning the Alternator Belt(s)
Follow these steps to properly tension the engines’ alternator belt:
1. Loosen the bolts labeled (1), (2) and (3) in the above diagram
2. Adjust the alternator labeled (4) in the direction of the arrow by turning bolt (3)
until the correct belt tension is achieved.
3. Then retighten bolts (1), (2) and (3)
6.3.4. Changing the Alternator Belt(s)
Check the tension and change belts only with the engine OFF.
Reinstall the belt guard before running the engine.