M-M Lifeliner high output generator.

J

Jeremy D. Ledford

PCS Volunteer Chapter President
On the 145 amp output D-R generator on a M-M Lifeliner I take it that it only has one connection which is the main current cable along with a ground and the three connections for the transformer right? And is this unit internally regulated on voltage?
 

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There is an external transistorized regulator in the system, probably mounted on the engine side of the core support on the left hand side.
 
it is not internally regulated but used a solid state regulator. here is how the 69 is done on the back side. off the top of my head the smaller wire off the out put side is to the regulator. the exciter wire is the switched one that give it the 12 volts to make the thing work. the capacitor is for the buzz in the radio the solid state regulator is on the right inner fender on this one. big wire feeds to the positive post on the starter. to return current to the batteries or batteries depending on the switch. the plate on the back of the one you pictured is a guard.
 

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Jeremy D. Ledford said:
On the 145 amp output D-R generator on a M-M Lifeliner I take it that it only has one connection which is the main current cable along with a ground and the three connections for the transformer right? And is this unit internally regulated on voltage?
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You're right Jeremy. One for ground and one hot. The other three posts are used for a power inverter. These old 145's kick out all the power you need at idle requiring minimal rpm's.
 
Ed, your photo is the older 130 amp alternator which is externally regulated AND has an external field relay. Jeremy's photo is a 71-newer 145 amp which is internally regulated and self-exciting, meaning it doesn't need to sample voltage from elsewhere on the vehicle to charge. The three phase taps are indeed for an inverter, though I don't know of anyone who used them. You could buy a Trippe inverter pretty inexpensively and it only needed one power cable.
 
John ED Renstrom said:
it is not internally regulated but used a solid state regulator. here is how the 69 is done on the back side. off the top of my head the smaller wire off the out put side is to the regulator. the exciter wire is the switched one that give it the 12 volts to make the thing work. the capacitor is for the buzz in the radio the solid state regulator is on the right inner fender on this one. big wire feeds to the positive post on the starter. to return current to the batteries or batteries depending on the switch. the plate on the back of the one you pictured is a guard.
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I just like your assortment of tools on the driveway, Ed!! Are those the 2 that you use the most? LOL!
 
the BMFH is the most important tool in the shop. I have a big bar that works also. you get the guy that hangs around and BSing you to death you hand him that and say hang on to this for me will you and you can hand it to me in a second. it takes about 5 min for them to find something else the have to do.

thanks for the difference on the alternators. I know the 75 of Roberts had the transformer hooked up off the three big lugs. but did not remember it as being internally regulated. the part I like about these cars is nothing is ever the same on them.
 
Kevin O'Connell said:
The three phase taps are indeed for an inverter, though I don't know of anyone who used them. You could buy a Trippe inverter pretty inexpensively and it only needed one power cable.
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My orginial inverter stopped working on the Lifeliner and began using a 700 watt unit which I clipped to the battery when needed. I took the one off the Criterion before selling it and put it on the Lifeliner. It came in handy during the Christmas Parade using it to power the Christmas Lights. :applause:
 
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