Testing The Charging System - Westfalia 82 86 62 Instructions D'origine

5. DO NOT press the testing button during this test! Only check the voltage
reading on the display during the starting time.
6. Now compare the previously noted value form the battery load test (Load
Volts) with the voltage value of the starter test (Min. Crank Volts) and check
with the aid of this table:
Load Volts
Min. Crank Volts
If the value for Min. Crank Volts substantially differs from the table, the starter
motor might be defective or there is bad cable connection e.g. at the transmission
resistance or the battery is undersized, i.e. too small for the engine.
Example: First measuring value shows 10.4 V for load volts and second voltage
value for min. crank volts drops to 10.0 V. According to the table the min crank
volt can drop up to 9.7 V and is still acceptable. If the voltage value for min crank
volts is below 9.7 V, this might be a sign for too much current consumption.
Testing the Charging System (Test the Alternator, for 12 V
systems only)
With this measurement method you can test the charging system of your vehicle.
Continuous charging or permanent discharging of a battery might lead to damage
of the battery. First undertake a battery load test and if the capacity of the battery
is sufficient, undertake the charging system test.
The charging system is tested with the engine running. The engine should run to
operating temperature.
 Stay away from moving and rotating parts and make sure jewellery, clothing
and hair cannot become caught; there is a danger of injury.
 Please also keep in mind that the engine compartment contains hot parts.
1. Turn off the vehicle's engine.
2. Connect the black battery clamp (9) directly to the negative terminal (NEG, N,
-, Minus) of the battery.
3. Connect the red clamp (10) directly to the positive terminal (POS, P, +, Plus)
of the battery. Ensure the connections are good.
4. For the test, run the engine at a moderate speed (between 1200 and
1500 rpm). The charging system is tested with the engine running. The engine
should be at normal operating temperature.
Operation
10.4 10.6 10.8
9.7 10.0 10.3
11.0 11.2
10.6 10.9
19
11.4 11.6
11.2 11.4
11.8
11.6