October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.
Alternator Output Test
- Ensure connections at battery, alternator and starter are clean and tight. Ensure alternator, engine and body are properly grounded. Ensure drive belt is adjusted and in good condition.
- Connect Ammeter/Voltmeter (VAT-40/60
) or equivalent according to manufacturer's instructions. Operate engine at 2000 RPM. Alternator output should be 90-110 amps.
- If alternator output is low, remove alternator for testing and repairs. If reading is 16-20 amps less than alternator rating, replace regulator, and retest. If output is still low, repair or replace alternator.