36humpback

If it is the same as a 36 This a pic from the front that shows where it goes.

Thanks to every one's help and advise. I tried the jumper wires to a headlight bulb, and it worked. Bulb came on and ammeter needle went to discharge side. I will try the one in the dash now. Hopefully I won't have to takeout the meter that's already in, as I will have to take the whole cluster out.

Thanks again. I don't have to hook up a wire from the generator to the ammeter?

I do have a newer 2 wire 35 amp generator, and a firewall mounted voltage regulator. I had both tested (apart and together), and both work and are compatible. So if I'm reading it right I unhook the gen wire and use wire from post to ammeter. Wire from battery to other post and try it. Should I unhook wires to ammeter still in the truck? Thanks BLOO.

I have acquired a second amp gauge, and want to check it while not in the vehicle. I am assuming that a wire from the generator to one stud, and a wire from the battery to the other stud. Start engine and check at higher than idle speed. Is that correct? Would I have to ground the amp gauge somehow? Thanks in advance. Bob

The generator is hooked up to the lug on the right. (not to fused lug), and is working properly for charging.(going positive when revved up)

Mine and the pic both show fuse fed from left bottom lug. the web pic shows it as BAT. If I switch my wires on those two, wouldn't it show discharge instead of charge when revved up?

UPDATE I got the amp gauge to go to + side when engine is reved up. Yeah!! Now I have to figure out what terminals all the other wires go to. I have most everything else fastened to the generator lug. No headlights, or panel lights. If I understand all the comments correctly, the following wires go on the top stud. 15, 18- ammeter to horn 24- ammeter to cab light swirch 29- ammeter to instrument light switch 32- ammeter to headlight switch Any and all help appreciated. Thanks, Bob

Voltage regulator mounted on the firewall.

Thanks again for all the info Bloo. Hopefully my last an maybe unnecessary question. The fuse protects all the wires on the top post? That's what I am thinking since power is coming from bottom. I do have a two wire generator with a voltage regulator.

Ok... Here is what the instructions I have for the wiring harness say: # 15 ammeter (same terminal as wire # 18, 24, 29, 32) to starter switch "BAT" #16 VR "bat" to ammeter #18 Ammeter to horn #24 Ammeter to cab light switch #29 Ammeter to instrument light switch #31 ammeter(same terminal as wire #16 to ignition switch #32 ammeter( same terminal as wire # 15, 18,24,29) to headlight switch (bat) #52 ammeter to heater switch The back of my ammeter is the same as the pic I got off the interweb, except there are no gen or bat markings on it. With these instructions, can you tell me what wires go where? I assume that "accessories" go to the top above the fuse. My big question is #15, 18, 24, ,29, and 32 to starter switch bat. does that mean the bat on the VR?, and they all go on the bottom right stud? Thanks.

I meant to type generator not alternator.

Thanks for the additional info, The pic is one I got of the interweb. I'll contort my aged body today and see what the back of mine looks like. It is still a 6 volt, but I do have a newer generator installed.

Thanks BLOO for the info. Attached is a pic of the back of the amp gauge. I figure the + terminal is the one on the bottom right and says gen below it. The one on the bottom left says BAT. What, how, hooks up to it? The rest of the wires hook up on the other side of the fuse?

I'm having trouble wiring up the back of the ammeter on my 36 Dodge panel. The wiring diagram is so grainy that I can't tell what wire goes where. There are three studs on the back. One above the the fuse and two below. the attached pic shows a stud next to fuse. Is this the one above the fuse on my ammeter? With engine running the ammeter does not show charging, but when I turn on the headlights it shows a discharge. Both alternator and Voltage regulator were recently check and both are good. I just need an explanation of what/how many wires go where. I think I might have some wires on wrong studs. The letter U is the amp gauge. Also a pic of the back of the amp gauge. Thanks in advance.