Make sure that the rechargeable battery is completely charged.

Make sure that the deflection and a tension of a belt of the generator correspond to nominal rates.

Disconnect a wire from the negative plug of the rechargeable battery.

Install the ampermeter between a conclusion In and the plug.

Connect a wire to the negative plug of the rechargeable battery.

Switch off everything consumers of the electric power.

Start the engine and establish the frequency of rotation of a bent shaft – 2000–2500 min.-1,

Measure current at the generator exit. Measurements are performed on the "hot" engine at the air temperature of 20 °C and tension on conclusions of 13,5 Century.

Current:

at 1000 ^min.-1 – 0-75 A;

at 2000 ^min.-1 – 0-98 A.

Include the following consumers of the electric power one by one:

– headlights;

– heater fan electric motor;

– heater of back glass.

Make sure that current on a conclusion In the generator gradually increases. If current does not increase, repair or replace the generator.