Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

No-Load Test

Fig. 7 No-load & Load Test Connections:






1. Ensure all electrical loads are "OFF" and brake pedal is released.
2. Install ammeter as shown in Fig. 7, start engine and raise speed to 2500 - 3000 rpm.
3. Ensure alternator output is at least 5 amps.