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  1. Changing fan belt on 7745

    Changing fan belt on 7745

    Many thanks for your advice. I originally tired to press the fan belt between the blades but thought I'd break them. After you confirmed it to be okay, I re-tried and sure enough off it came. Took only 2 minutes to replace the new one since I was used to it. Looks like the rotor and some...
  2. Changing fan belt on 7745

    Changing fan belt on 7745

    Sure appreciate insight on how to change the fan belt without undoing the radiator etc. Just took off my alternator and I'm getting it rebuilt (3rd time in 5 years) and now I noticed the fan belt is defective. Is there an easy way to remove it as the plastic fan blades are in the way and...
  3. Is replacing block heater difficult?

    Is replacing block heater difficult?

    Well I guess everyone but me new this was a no brainer job since I did not get a reply. Probably the easiest repair you'll ever have to do. Just need a screw driver and steady hand. Empty out some coolant first then there is a screw that anchors the unit in place, just loosen and pop it out...
  4. Is replacing block heater difficult?

    Is replacing block heater difficult?

    My block heater is no longer working. Has any one changed out theirs. Is is just a matter of unscrewing it and putting in a new one or is it a dealer operation to replace? Appreciate any expertise on how to replace my block heater on a 1991 7745. Not sure why the block heater went, it was...
  5. Cold weather starting

    Cold weather starting

    I too am in Canada - Montreal - and the block heater has worked fine - until now! However it appears my block heater is no longer working. Has any one changed out theirs. Is is just a matter of unscrewing it and putting in a new one or is it a dealer operation to replace? Appreciate any...
  6. 7745

    7745

    Anyone know what the PSI pressure is on the power steering cylinder of a 7745. I have a cylinder on the right front (as your seated) that keeps leaking. I've had it fixed twice now at two different machine shops and it still leaks - lose a litre a month. I want to replace it with a 2500 PSI...
  7. Sure would be nice if we could set up reference categories

    Sure would be nice if we could set up reference categories

    Each time I come to this site looking for specific problems for my own troubleshooting, I find I have to re-read many posts. It would sure be helpful if there could be some standard category list that would narrow my search. Perhaps categories such as: Brakes Hydraulics Loader Heater Engine...
  8. Anyone else keep their tractor outside

    Anyone else keep their tractor outside

    I finally broke down and bought a new DIGITAL volt meter. After having run my 7745 for an hour or so the day before, last night I took some new readings. Good news - the battery reads 12. 51 volts and the alternator is producting 14.37 volts. Same reading at alternator and starter plus I took...
  9. Anyone else keep their tractor outside

    Anyone else keep their tractor outside

    Great news! Re-attached alternator, put key in, oil and battery lights showed up, pressed starter and alternator charging at steady 13.5 volts. Guess it was an alternator problem afterall. Renze - you mention a good alternator charges at 13.5 (which mine is now doing) The book shows 14.5...
  10. Anyone else keep their tractor outside

    Anyone else keep their tractor outside

    Guess from Markku's comments, I'm not very lucky as my alternator was indeed defective. The diodes, bearings, were worn and changed but the culprit was the stator. Basically only the rotor seemed good. I'll be re-installing the alternator this weekend and check to make sure the regulator is...
  11. Anyone else keep their tractor outside

    Anyone else keep their tractor outside

    Thanks Renze! The manual gave a test procedure to check if the regulator was defective. Inter-connect a wire between the DF with I believe its the D (or F) wire, then touch the positive power feed with the other end of the wire for 2 to 3 seconds. (Running over 800 rpms) If the alternator...
  12. Anyone else keep their tractor outside

    Anyone else keep their tractor outside

    I've been having problems with my alternator and now the battery is running down. After checking, alternator is barely generating charge. (Time for a rebuild.) Guess I should look at getting a 70 amp instead of 55 amp. But what may be of interest to some, even after recharging the battery...
  13. 1991 - 7745 Steering cylinder (RH side)

    1991 - 7745 Steering cylinder (RH side)

    I ended up having to have a machine shop do the work. A) there are two sets of seals depending on what zetor put in. One is a 3/4 inch wide set other is 1.5 inch wide. B) In my case the piston rod was bent and would jam pretty tight when turned all the way in - thus really hard on...
  14. 1991 - 7745 Steering cylinder (RH side)

    1991 - 7745 Steering cylinder (RH side)

    Only major leak I have left to fix is the power steering cylinder that is located on the right hand side of the tractor behind the axle. I picked up new seal kit from the dealer and I'm about to do the change. I noticed the piston rod is slightly bent with a couple small dents - don't think...
  15. 7745 loader slowing down - after replacing 4 cylinders with larger ones

    7745 loader slowing down - after replacing 4 cylinders with larger ones

    Many thanks Tom/Renze for the expert analyses and advice Since you both took the time to do the precise math, the least I can do is provide accurate details. Cylinders: New OLD...
  16. 7745 loader slowing down - after replacing 4 cylinders with larger ones

    7745 loader slowing down - after replacing 4 cylinders with larger ones

    Guess it does take more oil to get the new cylinders working but the loader sure takes its sweet time to go up and down. Went from 3.5 inch outside diameter to 3.5 inside diameter bore. Sure is strong though. New oil, hydraulic screen is clear. Put on a gauge and gets up to 2800 pounds...
  17. Injector oil

    Injector oil

    No mention of adding injector oil in the 7745 workshop, parts or owners manual. I too would be very interested in knowing what this is all about.
  18. Oil dripping out the handbrake dust cover at rear of 7745

    Oil dripping out the handbrake dust cover at rear of 7745

    Well, I do believe I finally have my oil leakage problem solved. It was the seal around the axle drive connecting into the final drive housing. Had to change my brake disks as well on that side account they were worn right down and soaked with oil. At least I do not need to put a pail...
  19. Magnetic hydraulic filter

    Magnetic hydraulic filter

    The 7745 is a standard series tractor as opposed to Super series tractor thus the workshop manual suggest the following interval. Transmission & Hydraulic fine filter: Standard Series - every 200 hours the filter should be changed and the hydraulic pump suction screen washed. Super Series -...
  20. Oil dripping out the handbrake dust cover at rear of 7745

    Oil dripping out the handbrake dust cover at rear of 7745

    Just discussed with my dealer and he seems to think it's a faulty seal around the rear axle where it enters the final drive housing. The support for this is a bolt was placed in the right side in the "over-flow" hole under the final drive housing. When I undid the bolt, the hydraulic oil...
  21. Oil dripping out the handbrake dust cover at rear of 7745

    Oil dripping out the handbrake dust cover at rear of 7745

    Is it normal to have oil coming out the left side (facing forward) of the tractor where the handbrake rod enters into the housing. I know my auxillary 3 pt lift cylinder seals are also leaking and I will change shortly. Could I have an internal leak as well on the 3 pt hitch. Guess my real...
  22. Looking for Canadian ZETOR Dealer so I can order parts

    Looking for Canadian ZETOR Dealer so I can order parts

    You are right about Saint Polycarpe - but they no longer handle Zetor. Also, two dealers in the Napierville area no longer handle Zetor. (Agdealer web site not up to date). Brings up the question - what's happened (or happening) to ZETOR dealerships in Canada as other dealers I've tried to...
  23. Looking for Canadian ZETOR Dealer so I can order parts

    Looking for Canadian ZETOR Dealer so I can order parts

    I live near Montreal Quebec Canada and it sure seems many ZETOR dealers have closed shop in recent months. Not sure why, perhaps some of you could shed some light. I recently purchased a 1991 4wd 7745 with loader and snow blower. I went to top off the hydraulic oil and next thing I noticed...
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