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    973C straight drive in reverse

    Hereby an update. The main problem is solved. The 2 pressure sensors of the drive motors were swapped. the sensor of the left drivemotor was reacting on the right steering pedal. The pressure signal from the drivemotor did not match with the expected value, that caused the fault codes. I...
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    973C straight drive in reverse

    the machine slows down when pushing central pedal and stops when fully pushed. When fully pushed there's a sound of oil flowing through overpressure but nor really a noise. not unusual The sound is not the same as i mentioned before. That was more like crunching or squeaking
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    973C straight drive in reverse

    Ok thanks, saves me a lot of time
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    973C straight drive in reverse

    Thanks! I'll check the harness and solenoids, it looks quite well but i'll check it more carefully. If that doesn't solve the problem, I'll do the calibration all over again. Is it necessary to Reset Calibration in submode 13?
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    973C straight drive in reverse

    I did the calibration in open field in all 6 speeds and in submode 17, max track speed. The calibration was totally wrong, in particular the max speed in submode 17 was wrong. Calibration is now good so far. After calibration i tested him in the field. Immediately there came some Active Diagnose...
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    973C straight drive in reverse

    Hello Pittsburgh cat man Thanks for your comment! I'll do the calibration over again in the open field, calibration all 6 speeds is a valuable advice. I didn't know and I read over it in the manual :rolleyes: I'll come back later
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    973C straight drive in reverse

    It's not active but I'll check if the sensor and rpm of the motor. Thanks for that! If you can send me the electrical schematic, that would be great. I'll send you a pm for my email
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    973C straight drive in reverse

    Thanks! Before starting the diagnose work there were the following codes in memory: 0299.13, 0349.05, 0134.07, 0135.07 but i think that was before replacing the 4x steering solenoids (I didn't replace them, it was done before i started diagnosing). after clearing the memory there was only one...
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    973C straight drive in reverse

    No, only when i'm entering calibration mode the red light of the Hydrostatic Transmission begins flashing immidiatly, that's in all modes of calibration. I'm attending to calibrate maximum speed mode 17, but i need more space to drive... I thought this may not solve the problem because problem...
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    973C straight drive in reverse

    The transmission override solenoid valve is also replaced for a new one.
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    973C straight drive in reverse

    Hello I have a problem with a Cat 973C - 3RZ serial number. In reverse driving machine pulls to the left. It seems the left drivemotor turns slower for some reason. The problem is only in slow driving, speed lever halfway and full throttle. When the speed lever is all the way open, there's no...
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    973 Straight drive

    Thanks for the advice. I've placed new steering pedal bearings in the linkage, steering works much better and smoother now. I was not be able to check the straight drive yet, I'll come back later if this was the solution
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    973 Straight drive

    Ok thanks, hopefully Cmark knows
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    973 Straight drive

    Hello members, I'm not a native speaker but I'll try my best. I have an question about a CAT 973 ser. nmbr. 66G The machine is strong and runs very well, unfortunately it drives not straight. It pulls to the left when driving straight (no steering pedal touched) I have to slightly press the...
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