volt or amp gauge

[rob love]

I wrote up a response at work, but I see it didn't take.

I had a look at the manual dated 1943, and it listed 3 voltage gauges as being used on the 15cwt. The last one listed is C11A-10844B, which can be found on LWD parts listing here: https://www.lwdparts.com/product/ind...y-c11a-10844b/


LWD also lists C11A10844a, which is also referred to as a "indicator, battery", but is in fact an ammeter. This is a round gauge, and not listed in the 43 15cwt manual.



There is a Ford Canada Bulletin from 1940 which says Ford starting using battery indicators rather than ammeters in 1939 on some of it's car models, but in 1940 starting installing the battery indicators in all cars and trucks.

[Dave Schindel]

Thanks for the info guys.That helps a lot
Cheers,Dave

[rob love]

Doing a bit more reading on the net, I came across a listing on fordV8.com: the group number for a voltage gauge is 10844, and the group number for an ammeter is 10850. So I had a look at my 1942 Ford DND catalogue and it lists both the C11A-10844B (voltage gauge) and *C11Q10850 (ammeter) as replacement parts for all the CMPs from 8cwt right up to the gun tractors and the C60 trucks. I'll have to re-check my manual at work and see if there is anything in the 10850 froup of numbers.

Personally, I have only seen the voltage gauges on he un-altered original trucks that I have ever seen, but who can say on which vehicles they decided to install ammeters onto...perhaps overseas or hotter climates than here.

[Lynn Eades]

the Australian pattern carriers were built with both types. My guess is that this was probably down to what was available, to meet the ship. Both types are covered in the manuals. Come to think of it, without looking, I think there were 2 and 3 brush generators and it depended on which generator was fitted as to which gauge was used. Not sure why the generator made a difference.

[rob love]

I am looking at my 1943 15cwt manual F15A-01, and it lists the following 3 voltmeters: 01A10844A , C11A10844, and C11A10844B. There is no listing for any ammeters.

[Dave Schindel]

based on all the info I am going with the cluster with a voltage indicator.I am building the complete wiring harness so I will not have to deviate from the diagrams I have and will also retain the original gauges.
Thanks for all the help!
Dave