CUCV

Charging Current Experiment

(Click on any image for larger view)

 

Ed and Danielle's CUCV Small.jpg (110121 bytes)

1985 M1009 CUCV used for the experiment.

Thanks to Ed and Danielle McCammon

Wiring Diagram.jpg (52339 bytes)

Army technical manual,  TM 9-2320-289-20 (Figure F-9)

Charging Circuits (All Except 1010)

Battery Tester and Ammeter.jpg (105999 bytes)

Milton Battery Tester

Hoyt Low Current DC Ammeter

 

 

 

Ammeter Front Samll.jpg (48016 bytes)

Front View of DC Ammeter

Indicates the amount and

direction of DC current flow

 

 

 

 

Ammeter Back Small.jpg (38569 bytes)

Rear View of DC Ammeter

Placed on a wire with the

tabs alongside of the wire

 

Pictorial Diagram Small.jpg (70003 bytes)

Pictorial diagram showing charging circuit wiring

as depicted in the TM 9-2320-289-20 (Figure F-9)

and connected on the 1985 M1009 CUCV.

Front Charging Diagram Small.jpg (60857 bytes)

Pictorial diagram showing charging current flowing

from the driver's side alternator to the front battery.

Notice the direction of current flowing in center-tap wire (8 RED 2A SXL)

Rear Charging Diagram Small.jpg (58228 bytes)

Pictorial diagram showing charging current flowing

from the Passenger's side alternator to the rear battery.

Notice the direction of current flowing in center-tap wire (8 RED 2A SXL)

Both Charging Diagram Small.jpg (62016 bytes)

Pictorial diagram showing charging current flowing

from both alternators to both batteries.

Notice no current is flowing in center-tap wire (8 RED 2A SXL)

Links to videos of actual tests

Meter Balanced.jpg (16555 bytes)

This test shows charging current flowing

from both alternators to both batteries, in series at 24v,

with no current flowing in the common center-tap wire

Meter Front.jpg (16613 bytes)Meter Rear.jpg (16240 bytes)

This test shows charging current reversing direction,

in the center-tap wire, depending on battery demand.