3. Acceptance criteria for alternator bench tests
For alternator tests on an alternator test bench, the following acceptance criteria apply:
Hold time of load
Currents [s]
4. Inspection of Alternator E4A-91-000-000 and the Carbon Brushes
This section lists the steps to disassemble the alternator and its components (e.g. brush holder) and
to measure the length of the carbon brushes.
This section contains also the criteria for replacing the Brush Holder assembly E4A-91-300-000.
A. Special Tools
Slotted Screw Driver (~2mm)
B. Remove the Brush Holder Assembly
Remove the two screws G and G2.
Remove the black plastic cover on the
backside of the alternator.
Carefully remove the brush holder assembly.