The picture of the back of this alternator shows that the regulator plug is at the 9:00 o'clock position, but this particluar unit (A-1133) is supplied in the 3 o'clock position.

The reason this unit was returned was because it was not charging. During the clock position change the rotor was lifted out of the unit far enough that the bottom brush came off the slip ring, causing the brush to break when the two end plaates were matched up again.

This is the reason the alternator was not charging.

It is also possible that an alternator could still charge for a short period if the broken brush still makes contact with the slip ring.

As you can see on the enclosed picture, the result of the brush slipping off the slip ring caused the breakage not only of the brush, but also the brush holders.

Solution:

Please ensure the new alternator is in the same clock position as the original. In the event that clock position must be changed, care must be taken to ensure rotor remains seated in the rear housing to avoid brush and brush holder damaged.