Alternator Output Test

Generator (GEN) Output, Checking

Using the SUN VAT -40 (or VAT -60)

- connect black clamp to battery negative (-)
- connect red clamp to battery positive (+)
- connect green clamp (inductive pickup) to Generator D+; either at Generator or battery
- start engine
- raise engine speed and hold at 2000 RPM
- slowly adjust load control of VAT -40 (or VAT -60) until highest possible reading is obtained
- must be within 10% of manufacturers specifications

CAUTION: Test must be performed and completed within fifteen seconds to avoid overloading and damaging the electrical system.