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Ohh boy. Low voltage makes havoc on the 805b and 806b cim module. Causes it to restart etc. So yes, weak batteries and an alternator not rotating at the correct speed will affect the unit.

I live in hot weather all year and load bank these units to 12-14kw right off the bat (10 seconds after start). Thats real world scenario for these units. If they are gonna leave my shop, they must pass this test and run for 1 hour at atleast at 12kw surging to 14kw. Thats also the best way to...

Check the mag pickup. Could be sending incorrect reading to the governor and thus messing with the actuator. Check for 2.8-3vac. If not, remove, clean and readjust tgr mpu. The TM has the procedure. If this does not help, try to rule out the IP by releasing the linkage and setting it manually to...

Btw, just got a unit in pristine condition and found this inside. 90's throwback.

Looking to transport 2 humvees to the port of jacksonville.

Thanks Mac/Mc for helping keep these units alive and original.

So this is what I learned today while tinkering with the 15kw. I swapped (2) 60kw control cubicles and they registered as 15kw units immediately on display with no changes made by me in the configuration. Only got a message that the configuration changed and the message went away after I hit...

Ok. Confirmed it has 12 same sized wires. Also has the f1,f2 and another pair. The genhead plate specifies 120/240 @doble delta. There is hope.

Will do once i get back to the yard tommorow.

Yes I completely understand and will double check. 10 wires has been the norm for all 804ab and larger units from that series. I assumed it was the same for the ammps series but you know what they say about assumptions. Will report back.

I just got 2 of these units in and its the first time i have seen one. I am impressed with the room available on these to perform repairs or even disassemble. One of the units has 11k hours on it and zero blowby. One thing I noticed was the genhead looks really similar to the 803a but its too...

I was able to order the hose from cummins dealer. If you still have the unit, i might need some parts. Thanks

im looking for a radiator hose if you still have this unit for parts. Im pretty sure its part number 04-20796 in the manual. Thanks

Ok, finally got it off. I realized the rear main bearing looks banged up and id like to replace it and the o-rings in the front. Is there a rebuild kit?

Im on the 3rd day of playing with that clutch. I look like heroin addict with all the bruises in my arm.

Ok, I managed to align the holes and see the allen heads. Tried my best to get them lose by hand but would not budge. Im going to buy a small mechanics hammer drill and try again tommorow. Btw, are the screws left hand thread?

Gonna play with it it tommorow and see if I can pull it off. Thanks for the help, will report back.

The alternative, I believe, is to remove the allen screws and take off the clutch. I tried to fit the allen wrench though the big holes but cant find the screws. They are 5/16 allen if I recall the other post i read. I have never removed one on a humvee but do happen to have another spare...

I am not trying to remove the clutch per se. The nut is where the line from the cadillac valve connects. I believe it has a washer with a detent in the slot as per the manual. If I remove the nut, the bulb can be pulled out exposing the piston and seals that usually leak. I removed the hose and...

My 2 cents. I had a similar issue not long ago where the fan clutch would not engage. All the electronics in the cooling systems tested great. In the end it was a bad hose from the cadillac valve to the fan clutch. They had swapped the hose and did not use a hydraulic replacement. This caused...