7020 - Testing starter Engines 364, 364 A/LA - T2

15 - 7020 Testing starter

Data

Battery electrolyte density Normal min. 1.24 kg/dm3

Tropics min. 1.19 kg/dm3

Commercially available tester

Volt/ampere tester e.g. Bosch ETT 011.00

Digital multimeter e.g. SUN DMM-5

Testing

-------------------------------

1 Test electrolyte density of batteries. Recharge batteries if necessary.

2 Clamp amperemeter between positive terminal of battery and "connection 30" cable of starter.

3 Clamp voltmeter to connection 30 of starter and to vehicle ground.

4 Clamp second voltmeter to battery positive and to battery negative.

5 Engage maximum gear, apply parking brake and depress foot brake.

6 Briefly operate starter (not more than 5 seconds) and read off short-circuit currents 900 to 1050 A on ammeter.

At the same time the battery voltage must not drop below 13.5 volts.

The voltage at conection 30 of starter must be not more than 1 volt lower than the battery voltage.

7 Disconnect testers and re-create connections.