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Hello NDT. Should be the winch gear case full of oil?

Hello again... Anyone knows what item no. 43 do? Thank you and sorry if I insist... :-) Christian

OK, found the drawing. I see a screw (43) and a oring(42). in m1078_TM 9-2320-365-24P.pdf, page 680 Maybe both of then are closing / opening the oil flow to the brake chamber? Christian

Self recovery winch: loosing oil through relief valve Hello all. I have a strange problem with my M1078 self recovering winch. On top of the winch drum (behnid the hydraulic motor) there is a small spring loaded valve. I loose all the time oil from this valve, without operating the winch at...

I have a Webasto ThermalPro 90 water heater. The big advantage of water heater is that you can connect it over a heat exchanger to the coolant system of the engine. I did it due low temperatures in the winter. Preheating the engine 15 minutes eliminates completely the starting issues on cold...

For everyone that want build a new CTIS ECU: Don't forget flyback diodes, it drove me crazy trying out why sometimes the Arduino reset without any reason when shutting off the valves... Seems that no diodes are in the solenoids... Happy hacking! Christian

Hello Forum. Time is running and project is going on. I finish the configuration mode that enable (when you short a contact inside) to manually inflate / deflate the tires and to save the actual pressure as new default pressure for the 4 diffrent modes. I also add a switch to cutoff the power in...

On my truck only the ECU was changed, for sure. All the rest is original and never touched. But anyway, now with the new self made ECU works, and that is the most important thing... Thanks and regards from Italy! Christian

On front of the box is the kitchen and the bathroom... Sorry, I am not as good as Seth for pictures and text... :-) Christian

Sorry for the delay, but I was taken by the ctis project. Here is a picture of the back bumper.. Christian

Yes, quite sure that there are diffrent wheel valves, transducer and ECU. I have a ECU with highway pressure about 95psi on a M1078, perhaps it's a 80psi ECU for a 939 or M1089 truck. With that ECU my CTIS was not able to get highway pressure and tires went overinflated... Christian

Hello Ronmar. No, I don't use the wet tank switch for inflation time. Only for starting the system. Here are the steps: - open control valve - after 3 seconds: open inflate valve - after 3 seconds: close inflate valve - after 30 seconds: check pressure - if too low: inflate: -- open inflate...

Thank you! Yes, but I don't know what's the range the original pressure transducer. It's 120 or 150 psi transducer?

Hello all! Yes, I am thinking about putting the source code on github or something like that under the GNU GPL license to share it. It is in early state, like a beta version, and I need to make it more universal, not just for my truck. Like putting a manual control and to be able to set every...

Hello again. Finally I got time to publish a picture. After hours of trial and error (my fault) I finally got the new CTIS to work. I can now set any pressure for emergency, sand, XC and highway mode. Plus I got some info what is the CTIS status, like air tank pressure switch, state of the...

Yes maybe, but for a M1078 the Arduino is enough because no CAN bus is available... And for debugging the USB port is more than enough...

Hello Tom. I think I will make a circuit board when finish yes. Probably I will put the sketch on the board here, but let's see if it's working. Any info about the voltage of the solenoids? Christian

Hello again. I'm moving on, the software itself is near ready to use... A quick question about the PCU solenoids: On a M1078 are they 12V or 24V? If the hole system is 24V I think they should be also 24V. Someone have the correct voltage? I search on the other threads but nowhere exact info...

No, he change the ECU because the old one did not work. He put the only one that is working, and that is the M939 wrecker ECU... Christian

Interesting indeed. I did a unwanted chalk test some days ago, with 90psi. This pressure is definitivly too high, The tires have only in the middle (60-70%) ground contact. 60 psi looks more natural.. :-) Christian