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  1. Keith_J

    M1031 PTO Governor Control - Factory Technical Manual

    I may need to back off the governor adjustment. The Lina MAC generator voltage regulation uses output current to induce rotor excitation current. This compounds the excitation since output current is AC, rotating twice as fast. This gives the generator great current capacity for starting...
  2. Keith_J

    M1031 PTO Governor Control - Factory Technical Manual

    Just finished tests running my 50 amp plasma torch off 208 single phase with the air compressor running. This is an inverter type machine which means highly reactive power, diodes first rectify the AC, charging a large capacitor bank. This causes a leading power factor. When the compressor is...
  3. Keith_J

    M1031 PTO Governor Control - Factory Technical Manual

    I have found the Goldilocks adjustment for this governor system. Make sure all switches, sensors and crimp terminals are correct, found one loose only by the heat it was generating. Gain set to 70%, this varies based on actuator and engine. Integral (I) at 40%. Droop zero with S1 off, S2 on...
  4. Keith_J

    M1031 PTO Governor Control - Factory Technical Manual

    Another reason for the non release is this vehicle was only in US Army service while all others were DoD. Several requests have been made through FOIA channels. The Woodward manuals are public release. But they are more general and one has to study the systems to correct install issues. The...
  5. Keith_J

    M1031 PTO Governor Control - Factory Technical Manual

    The TMs have not been released to the public as one variant of the M1031 is the EOD variant with restricted radio equipment installation. On a side note, the governor on mine is now working properly. The throttle actuator had been installed incorrectly so it couldn't open the throttle...
  6. Keith_J

    M1031 PTO Governor Control - Factory Technical Manual

    Excellent! The generator on my M1031 SECM worked fine, frequency was a bit low so I brought it up adjusting the pot. But droop was severe, going from 61 Hz unladen to 56 Hz with the compressor engaged. The droop adjustment was a mid span, it needs to be maximum counterclockwise for...
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