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  1. L

    M1078 Allison HD3070 Shifting Problem

    I will give the problem first and then state what I have done for diagnostics. Problem- Transmission when put in drive lights up with 7 gear showing in left window and 2 showing in right window. Drive and will not shift to 3rd even when tached out. Stop- Shift it manual in to 1st- it goes into...
  2. L

    M1078A0/ Parking Brake Release

    After reading my air line schematics available on Steel Soldiers and after going to YouTube to view RonMars Air Component Video (which by the way is excellent even after the 4th time) I am turn for help for confirmation. My parking brakes are taking 20 seconds to fully release. I suspect it is...
  3. L

    Gauges and Sending Units Caterpillar/ M1078

    Sticker Shock once again brings me to the Steel Soldiers Advisory Committee/ I haven't researched it and this is my first place to come so maybe my powers of observation can be scrutinized/ Dealing with my Oil Pressure the first place I dealt with was the gauge and is it working/ After removing...
  4. L

    M1078 - M1083 Cab Air Suspension Bags/

    I thought the cost of eggs had really gone out of sight, and yes I do feel compassion because as usual the cost of feed has drastically increased. So the remedy is you either buy eggs or not. The airbag on my 1083 decided to spring a leak but before I took it out I wanted to see if they are...
  5. L

    M1083- M1078 Brake Lines and Valves Diagrams

    Fellows, I really am trying to learn how to read the WorkShop Manuals/ once I find he information I have no problem but finding the information is very trying at times, like most of the time/ I am looking for the Air Line and Valve diagram, a schematic that shows the basic position in the frame...
  6. L

    M1083A1 Electrical Maladies Starting at the Disconnect Switches

    Hello! I tried searching this and found no content as to the Disconnect Switches for the A1/ I do have wiring diagrams and that is substantial but I am looking for personal touch that you mechanics have had. I know the flaws that go with these units and know that some of you fellows do too...
  7. L

    About the Blinking Lights on the N1509 Regulator

    I was once told that when you have a different subject to bring up you start a new post, so I am but it is still in regard to Alternators. On a recent post I was dealing with a N1506 Alternator and found that the alternator itself was bad. I went to Forestry Division who is handling parting out...
  8. L

    Niehoff N3030 Regulator/ M1078/ doesn't have flashing light capacity

    This is a 3 fold question 1/ I am having difficulty locating the test procedure for this regulator and I am asking if any one has it and would like to share. 2/ They seem to be quite pricey and before I purchase one are they any for sale within the group new preferably and what kind of price do...
  9. L

    Air Hose Add On

    Hey y'all, I have a Fire Department that is wanting to add the availability of air pressure to a hose to fill tires or whatever. I know that this sounds simple but I thought that first I would run it by because I know somewhere out there someone has an incredible idea and needs to share it with...
  10. L

    M1083A1 Suspension Arms ie Dog Bones for Rear Axles

    I am finding as I get older that it is expedient to humble yourself and claim ignorance rather than repair and find out how this stuff is really assembled. On these torque arms I notice that the ends are constructed differently than the M35/ The M35's the Bushing get pushed out and that takes...
  11. L

    30KW with Diesel Engine/ How to Prime Fuel System/

    Gentlemen: About 2 weeks ago I had a generator load up with water on the fuel side/ So I removed filters, drained the injection pump, cleaned the lines and checked my diesel supply ie I cleaned the tank/ So I went to start it and it seems I lost prime and need to replace the quad rings at the...
  12. L

    M1078 Alternator/ 12vdc side of 24+12vdc Alternator/ Please educate me

    Gentlemen; I have a charging problem and it goes like this/ The Battery configuration is 2 group 31 batteries/ The system has been very functional for over a year/ Now I have the 12vdc side draining while it's running and my charge rate on the 24vdc side is acting like the parasitic draws we use...
  13. L

    M1078 PTO Solenoid Connection

    I'm once again turn to the folks that have worked on these critters. I have a PTO winch that will not work. The problem is electrical. All the switches are good, good power source, and the PTO is engaging and the light on the panel shows it. The problem I am having is finding the connectors to...
  14. L

    LMTV Wedge Brake Chamber Lube

    I had the task last week of repairing grabby brakes on a M1078 and went ahead and recorded a video for the novice to at least get an idea of what was behind the braking on their truck as far as the wedge chamber was concerned. Don't know if it is of interest but I hope it helps someone as much...
  15. L

    M1078 Hydraulic Controller Box and System Schematics

    I guess the simple question would be to ask if there is a Troubleshooting Chart for the Hydraulics System? After reading the Manual I read how to disassemble and reassemble but it never explained the function of the check valves and flows of the oil/ My valves were leaking oil out the front of...
  16. L

    M1078 Battery Conversion

    I know that there have been questions and comments on the removal of the square 4's and replacing with commercial batteries. I have done several for Fire Service and Municipalities so I thought I would film one and put it on You Tube for all to see. Comments and criticism welcome/...
  17. L

    Air Pressure Gauges/ Voltage/

    I am working on a Fire Department M1087. The reason I start with that statement is so you will know that I do not know what happens to these vehicles before I get there. I have been correcting issues with the truck overall and I believe I am about to resolve that this unit took a shot of...
  18. L

    M1078 How do you make it a 4WD or am I missing something???

    This is the second time it happened. The M1078 got stuck and one tire alone spun killing any forward or reverse progress so I am writing the question, HOW DOES ONE ENGAGE THE DIFFERENTIALS INTO 4WD OR IS IT MY IMAGINATION THAT THESE TRUCKS REALLY DON'T COME WITH 4WD? The first time it happened I...
  19. L

    M1078 Circuit Breaker Schematic/ The Quest For

    Maybe senility has set in and the powers of observation have dwindled but I cannot find in all the manuals a schematic for the circuit breakers (looking especially for CB65) depicting where the power comes from and where it goes to. I'm sure its somewhere. Please somebody prove me an idiot and I...
  20. L

    Diagnosing CTIS M1078

    Yes, I have downloaded the Tech Manual and thank you for sharing that. My question and I haven't found it in the site is that pertaining to Software for Computer diagnostics of the system. Is it obtainable? And where might it be located? And has any person on this site done it and know it? I...
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