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I have plumed in a hydraulic pressure guage 3000 model, in the discharge line of the the hydraulic pump at the ouick disconect location. guite easythe threads were 1/2 in NPT so added a 1/2 tee, 1/2 close nipple, 1/2 to 1/4 reducing bushing and 1/4 npt glisserin filled guage re installed the QD and purged the air into the sump. after some time for the foaming to dissapate and toping off the oil the guage was running at 250 with the engine at idle. it would jump to 2500 if I turned the steering wheel andwhen released would return to 250. it stayed at 250 when the three point hitch was oprerated, no response from the fel valve at idle, when RPM was increased the pressure guage remained the same 250 but after enguaging the fel control handle, a delay of two seconds berore the fel would react and the guage would also jump to 2500 when the fel was under demand , So I am still searching. does any one know what the pump should put out under no load, what does the diverter valve do? I am still perplexed, as I am learning about hydraulics.
I will be out at tractor supply today the suppliers in my area were all closed for the holiday. jinma 204, ZL 20 loader old style control valve handle on top, 287 hours
I have found one drilling chip inside the loader valve, and could not locate a presure guage as of yet. put it all back together and have to rev the engine to get the loader to operate, it used to operate at idle. Anyone got any ideas on what to look for next.
I am haveing the same problem, was loading snow and loader just quit, its back in the barn, (warming up) I have read the posts regarding FEL and will start with a pressure guage and valves in the loader control. I have the old style fel valve with the handle on top, oils up and still have steering and TPH working fine. I will be getting into it today.
Sorry, I didnt post this fix to my problem sooner. the rool pin that is on the shifting lever on the transmission was broken, It was tough to get at floor board had to come out, I fixed it with a new rool pin and after some time it broke again after another tear down I nested two rool pins togeher one smaller than the other and returned to service not had a problem since.
Len I also bought my Tractor from Walt Barrett, There site says they are out of the LW6 stock. I will email him in the AM and see if he's going to get some in.
I am debating the LW-6 It is new 2011 and has a Hyd thumb, for the same money as the used Koyker. In crate $2795.00 with free shiping from ATV express Memphis TN but no PTO pump or sub frame. so if the the LW6 will be more suited for my tractor, I can deal with the funky controls and work them out. Good advice from all of you. Thanks Paolo
What kind of hoe do you have Len? The Koyker KB 75 is a used unit, but little use, It still looks new, I will not use it much, but want to put in underground power in the spring and the cost of a hoe will be offset by not hireing outside contractor with a backhoe for trenching. Koyker KB 75 7.5 diging depth, I can fabracate a subframe if none are available and it looks like I would need A pto pump to run it, from what Rich has said. I still have a week to make a decision on this unit or keep looking for something else to bad the chinese LW's still have jerkey controls. What other Brand backhoe units would you guys recomend for a 204 with an inexperinced tractor jockey like me. Paolo
