Nortrac 204C Tractor hydraulic and pto problem: Chinese Tractors -- NorTrac Tractors  -- Chinese Tractors Discussion Forum and Review Nortrac 204C Tractor hydraulic and pto problem: Chinese Tractors -- NorTrac Tractors -- Chinese Tractors Discussion Forum

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 04-25-2011, 09:09 Post: 178155
kawidoo



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 Nortrac 204C Tractor hydraulic and pto problem

Need some help with my nortrac 204c. 1st problem: York rake will not stay up, slowly creeps down. 2nd, Hyd fluid seems at normal level pours out of full vent after tractor's been operating for a while??. 3rd problem, after using tractor for a while I start losing my steering. Im thinking this some how is all related. Can someone please help... thanks






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 04-25-2011, 09:46 Post: 178156
greg_g

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 Nortrac 204C Tractor hydraulic and pto problem

Only related in that they're hydraulic problems.
1. rear lift needs a cylinder repair kit. Inexpensive and simple to install, just a little messy
2. hydraulic fluid will spill out the fill vent when going up steep hills. If it does it all the time, you've over-filled it. The level is supposed to be checked WITHOUT screwing the dipstick back into the hole. Just remove it, wipe it, set it ON the hole, remove and check level. I never added fluid to mine unless/until the dipstick came out dry. Also - always lower FEL and TPH with the engine running. If you do it when the pump's not turning, you'll also overfill the hydraulic sump
3. steering priority valve probably needs cleaning. Some call it a diverter valve. It's located in front and to the left of your brake pedals.

//greg//






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 04-25-2011, 10:54 Post: 178157
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 Nortrac 204C Tractor hydraulic and pto problem

Thanks greg for your help, called northern tools a little while ago and they said it sounds like I need a new Hyd pump... $177. Steering seems to get worse as the fluid gets hoter, nothern also told me to adjust the pump speed, a knob under seat. Maybe pumping to slow or to fast, does that sound right??






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 04-25-2011, 12:08 Post: 178159
greg_g

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 Nortrac 204C Tractor hydraulic and pto problem

"Sounds like" wouldn't be good enough for me. I recommend you go through those 3 steps I listed above before making what could possibly turn out to be an unnecessary $177 expenditure. I'm going to respectfully suggest that part of that amount would be better spent buying the NorTrac manuals specific to your tractor.

And there is no "pump adjustment", I can't believe they told you that ! The "knob under the seat" is the flow control valve. All it does is regulate the volume of fluid flowing back into the sump. Like when the loader is lowered, the bucket dumped, and the rear hitch lowered. Specifically the rear hitch. The idea is that you want a slower return flow when heavy implements are mounted, and a faster flow for lighter implements. It has NOTHING to do with the problems you describe.

Your topic title by the way, indicates you have a PTO problem too. But so far you've not described one.

//greg//






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 04-25-2011, 12:37 Post: 178160
kawidoo



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 Nortrac 204C Tractor hydraulic and pto problem

Thanks again, Yeah I guess my title should have said rear lift problem... sorry.

yes I just ordered the manual.I will look into those three steps. Thanks again for taking the time to answer my post.






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 04-29-2011, 18:54 Post: 178250
kawidoo



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 Nortrac 204C Tractor hydraulic and pto problem

Got my owner's manual and HYD lifter rebuild kit today. looks pretty involved, around 12 O rings, 2 Teflon rings, a couple of oil seals and 3 gaskets. looking at the manual it only shows the break down. was wondering if I can get away with just rebuilding the cylinder and piston or does that whole assembly need to be taken apart. if so... where can I find a shop manual or rebuilding procedures.






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 04-29-2011, 23:17 Post: 178252
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 Nortrac 204C Tractor hydraulic and pto problem

I'm not sure what 12 O-rings is all about, but I note that you used the term "rebuild". It was a repair kit that I recommended, not a rebuild kit. I wouldn't expect a cylinder repair kit to have more than 2 large O-rings (about 63mm) and 2 wipers (the white ones). Some cylinders take only 1 O-ring a 2 wipers. Might you have ordered the wrong kit? Or perhaps have been sent the wrong kit?

//greg//






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 04-30-2011, 08:42 Post: 178253
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 Nortrac 204C Tractor hydraulic and pto problem

It was inexpensive, has all the O rings for the entire power lift assembly. It does include the O rings and wipers for the cylinder, So it looks to me that I might just have more then I need. Can you help me out with the repair procedures, or give me some direction. Looking at the diagram, looks like you have to remove the cylinder cap, pull out cylinder and piston and replace the O rings and wiper. Does that sound about right?? Im going to drain the HYD fluid before I pull cylinder and replace the HYD filter. Is there any procedure on bleeding after I put it all back together and add new HYD fluid??






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 04-30-2011, 11:53 Post: 178258
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 Nortrac 204C Tractor hydraulic and pto problem

As you probably know, AW32 hydraulic fluid is as clear as - and almost a thin as - water. If what you drain out is thick, milky, discolored - give serious thought to flushing the system before pouring clean fluid into a dirty sump.

And sounds like you've already sussed out the right game plan regarding the cylinder repair. So I don't think you need any more help from me on that front. Regarding all those other parts in the rebuild kit, put'em on your spares shelf. I'd say they fall into the "if it ain't broke, don't fix it" category right now.

These systems are vented, which means self-priming. Give the vent/fill plug a good bath in diesel fuel, and use compressed air to make sure the vents are open. After you top up a clean system, just exercise the hydraulics. There will be erratic operation for a brief period, while the circuits purge themselves of air (through the vent you just cleaned).

//greg//






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 05-01-2011, 08:17 Post: 178269
kawidoo



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 Nortrac 204C Tractor hydraulic and pto problem

Thanks greg, I'll let you know how I make out. As always thanks for the help. So glad I found this forum...
Kawidoo






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Discussion Boards > Active Subjects > Messages as Posted > Chinese Tractors -- NorTrac Tractors Forum

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