Dual Alternator Wiring for 24v HMMWVs

Click Here To Visit G.T. Inc.

Click Here To Visit Hummercore

Click here for a listing of all HUMMER Network sponsors

The Hummer Knowledge Base

Dual Alternator Wiring for 24v HMMWVs:

MODEL:
HMMWV

SUBJECT:
100 and 200 AMP Alternators

COMMENTS:
A. NSN 2920-00-000-0183 (100 amp) and NSN 2920-01-264-6542 (200 amp) will no longer be available for the HMMWV.
If you need a new alternator, please order NSN 2920-01-407-0532 (100 amp) or NSN 2920-01-420-9968 (200 amp).
B. NSN 2920-01-407-0532 (100 amp) and NSN 2920-01-420-9968 (200 amp) are for a dual voltage alternator used on the new A2 and ECV HMMWV´s with an electronic control transmission.
This system will become the standard alternator used for support.
C. The dual volt alternator can now be used in your basic and A1 HMMWVs.
Because these are 28V systems, it is important to ground the +14V terminal of the dual voltage regulator according to the following procedure:

PROCEDURES:
1. Fabricate a grounding jumper wire using the materials and instructions in figure 4-2.

NOTE
For Steps 2 through 4, see figure 4-3.

2. Install all wires and connector to their respective position on the regulator.
3. Do not remove cap (item 2) on phase connector since this connector is not used.
4. Connect grounding jumper wire (item 1) from +14V terminal to ground. Secure terminal under nut and bolt respectively, using torque specified.

PUBLICATIONS AFFECTED:
TM9-2320-280-20

Back to main page

The Hummer Knowledge Base is a collection of informative posts from the Hummer Network forums and mailing lists, contributed material and links to outside web sites.
The Hummer Network is not responsible for the accuracy of the information contained herein or on outside web sites, nor for any situation arising from the use thereof.
© 2006-2011 by The Hummer Network. No material from the Hummer Knowledge Base may be reprinted or republished in any form without permission.