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I was going to ask how you determined it was a high load. A bad connection will do the same thing with normal loads… R-15 is a resistor. On the A1 they did away with the need for 12V and 24v relays, and they used only 12v relays(4 and 5 pin). On the relay circuits that use a 24v source for...

Now if this were a regular alt, you could briefly jump the field(bypass the regulator) and drive the field to full saturation. And see if the voltage increases. If the alt was overloaded, this test would not increase voltage because it was already giving all it can. another option is to throw...

Ok, you should have 14.1 and 28.2 on the large bolted terminals on the alternator chassis. The forward terminal on the regulator is the alt excite terminal. You need at least 21V applied to that terminal by K11 after the engine has oil pressure to bring the alt online. The rear terminal on...

Ok, i am a little fuzzy on how a 95 would have a LBCD... 95 =A0, the didnt put the LBCD on till into the A1 trucks a little bit. If your 12v drops off this would shut off the 24v ign relay K2(powered by 12v). Got a meter? What are the voltages at the 3 power panel test points to the left of...

Or a more recent lmtv speedo that is switch programmable...

Allison? Or one of the breakers...

Wonder who made that one.

Hmmm it should have dip switches, got apic of the backside of it?

Define good 12v charging(whats the voltage and where are you measuring it)?

I think S&S did the same thing With the A0. I call them A0.5’s… A1 panel with no LBCD or battery disconnect box…

That devices sole purpose was to disconnect failing/dead batteries when commanded by the LBCD, to save a very expensive alternator, so you could continue with the mission. A side benefit was having a remote disconnect you could operate with a switch. A large potential downside, is if the...

I would call the pics with the 4 individual power dist modules/PDMs an A1R… The A1 panel was a green circuit board with soldered on components and sockets, like in these pics. For the R it appears that they replaced the circuit board with the 4 PDMs and kept the ign relays K1 and K2 on the...

Scanning would be cool. It took a lot of time to get dimensions to get the cab and chassis into autocad. I usually get pretty good the 2nd or 3rd time I build something, so I try and get those first couple of builds out of the way in CAD:)

Well his is an A1, so I wouldn’t expect to see that power panel layout in the A0 manual:)

I would also expect more noise out of them if they were not properly filled with lube, or the end thrust bearing and washer stack has developed issues. Where did you get the truck from? These things went to excess for a reason, and if it has not been gone thru by someone willing to dot the Is...

Not for an A1. It should be very similar to the A0 as the wiring at the starter is basically the same, but I have nothing specific to confirm that. The starter replace procedure is in chapter 7 which is in the 20-3 manual. You can download all the A0 manuals up in the manuals section.

In the normal configuration the battery ground terminals are the 2 - terminals farthest from the frame. There shoukd be a cable tgat runs from there to the front of the starter motor, and a ground strap tgat ties from that starter motor ground terminal to the drivers frame rail. And another to...

Dont have a pic handy, on an A0 they are all the way over on the left edge of the compartment, three 1" diameter discs aligned vertically in the panel, for ground, 12 and 24v panel input from the polarity box. each has a threaded hole in the center... On the A1 the panel has 4 boltheads spread...

4:1… the one I have is 63:1. That means 7.1ft/lb on the wrench =450ft/lb on the socket, minus gear losses of course. Thats why I cautioned about cranking it the right direction, you could do some damage with one of these… I think I would actually prefer a 4 or 5:1…:)