Keith,
   If you want printed information, I would recommend that you call Floyd County Museum, phone# 641-228-1099. They will very likely have an owners manual for that plow. 
    A few simple adjustments to remember : 
 the beam of the plow running front to rear should be parallel to the ground while plowing. this will mean getting on and off several times to examine  the plow or have someone walk along side as you have the plow in the ground.
 On the first pass, the plow should be set level left to right.On the next pass, Once the right tires drop into the new furrow, the plow will no longer be level.the leveling box on the right lift arm will have to be cranked in to shorten that side so that the plow is once more running level.
   I am not familiar with this plow model, does the plow have a lever set on the right side? If so, you adjust the left to right tracking of the plow behind the tractor with this lever. 
    Do you have coulters on the plow and trash covers?
    Is there a trailer wheel or a rolling landside?
     I can call you if need be.
                   Cal