I recently purchased a used Zetor 7711 tractor from an auction. I am trying to hook up a brush hog to the tractor but I am having problems getting the PTO to work correctly. With the selector lever in the PUMP ONLY (full forward) position, the PTO will spin however I can grab it with my hand to stop it. If I move the selector lever to the next position backwards, PUMP & PTO, the PTO shaft stops spinning all together. The 3-point hyraulics work properly in both of these positions. The next position backwards is neutral, which works as expected. The full backward position (GEARBOX PTO) is one that I just found out about today while reading this forum. I have not had the opportunity to check this one out yet. I put the lever in this position to test it, but I was not aware that the tractor had to be moving for the PTO to operate. I will check this and update this posting.
Can anyone give me suggestions on where to start looking to troubleshoot this issue? I have opened up the two gearbox hatches on the belly of the tractor and did a visual inspection. My untrained eye did not find anything out of the ordinary. I also opened up the round hatch at the rear (also on the belly) of the tractor where the hyrdaulic pump is located. I also did not see anything out of the ordinary, but I also did not know what to look for.
I purchased a workshop manual for the tractor but when it arrived it was only a supplemental manual. I guess that I need to also purchase a 5211 manual to get the whole manual.
Any help would be greatly appreciated!!
Chris
Can anyone give me suggestions on where to start looking to troubleshoot this issue? I have opened up the two gearbox hatches on the belly of the tractor and did a visual inspection. My untrained eye did not find anything out of the ordinary. I also opened up the round hatch at the rear (also on the belly) of the tractor where the hyrdaulic pump is located. I also did not see anything out of the ordinary, but I also did not know what to look for.
I purchased a workshop manual for the tractor but when it arrived it was only a supplemental manual. I guess that I need to also purchase a 5211 manual to get the whole manual.
Any help would be greatly appreciated!!
Chris