BX 3 point hitch won't work

Dusty · Feb 4, 2007

The 3 point hitch on my BX22 isn't working. I have no idea when it stopped, since I just got around to installing my weight bucket. I removed the loader valve from the system and set it as originally used without loader valve in place. I have allowed the machine to come up to temperature, and the fluid levels are correct. I checked the linkage and it is properly connected and moving. I also checked the knob under the front of the seat and it is open. The tractor doesn't even change sound when you move the lever. Any suggestions as to what to check next?

mjarrels · Feb 4, 2007

Do you have a MMM? Does it raise/lower? Turning the lower knob the right dirrection?

mark

Volfandt · Feb 4, 2007

Sounds like you've checked all the easy fixes.
I don't know much about the BX22 as the hydraulics are different from the BX23 but that said, I do know that the 3PH and FEL hydraulics are in series with one another on both tractors. I'm not sure which subsystem receives the hydraulic power 1st but inorder for the 3ph to work, power must route to and then back from the FEL control valve and/or the bypass connections.
If I remember correctly the FEL control valve on the BX22 removes with the FEL and if this is correct there must have been a way to to connect the power beyond line to the power return line, like the BH lines.

Did the FEL work up until you disconnected it? If so then that would indicate that you've got the power circulating.

Double check all your connections.

Good luck

Dusty · Feb 4, 2007

MMM doesn't raise. Took the loader off in the fall and installed the front mount snowblower. The snowblower works fine and raises and lowers properly. Took that out of the system to figure out the three point hitch problem. It acts like it isn't even part of the system.

Volfandt · Feb 4, 2007

In looking at the WSM hydraulic system manual for the BX23, the power flow to the 3PH is such:
1) Pump
2) Flow priority valve
3) FEL control valve
4) BH control valve
5) 3PH

The priority valve, relief valve and 3PH control is located in the block called the Hydraulic Control Valve assembly.

The priority valve splits the pumps output between the FEL, BH & 3PH and the power steering assembly & pto clutch assembly.

If the HST, power steering and pto works then it's safe to assume that the pump is fine. It would also be safe to assume that at least part of the priority valve is also functioning properly.

The question then remains is the priority valve providing hydraulic power to the FEL control, then to the BH control and then on to the 3PH. If the BH works then the priority valve is working.

Another thing of note is if the relief valve is staying in bypass (i.e. either bad or over pressured), then there won't be enough power for the FEL, BH and 3PH to work.

Looks like it's going to take a few steps inorder to find the problem, one being the need to either remount your BH or disconnect the line to see if theres high pressure getting through that circuit. Course if you've got a pressure gauge handy that would be the easiest way to troubleshoot the various circuits for power.

pintodeluxe · Feb 15, 2009

Simply forgetting to reconnect the looped hydraulic hose when taking the loader off would cause your symptoms. IE: power steering would function, but no flow to TPH and MMM hydraulics.

hlaskor · Apr 3, 2009

I'm facing a similar problem...hoping someone has already found a solution, because I'm at my wits end. I have a BX2200...just had a FEL put on by dealer...now 3 pt hitch won't raise or lower. It acts like it's completely dead, no response. There is no noise when I try to raise or lower. The lever for raising/lower actually seems to have tension towards the "down position" (towards the back of the tractor)...it doesn't want to "sit" in a "neutral position" like it always did (in the middle). Odd thing is my FEL works great, no problems. There is sufficient fluid, I checked (also pretty fresh, less than 15 hours on it). The knob/lever under the seat is turned to the "fast"/"open" option for the 3 pt.

Any advice? Could the dealer have messed something up? They claim that putting an FEL has nothing to do with 3 pt and couldn't possibly affect it. Even if that's true I still need to figure out a solution...HELP!!!

Thanks in advance for your time.

jimmer2880 · Apr 4, 2009

If your 3pt worded before the FEL was installed, but now doesn't, you should take your tractor back to the dealer. They plumbed your FEL wrong and hooked the "Power Beyond" hose up to the "return" port on the FEL.

radioman · Apr 4, 2009

first check the hydralic flow knob below the seat. Turn the knob totally the other way if the 3 pt hitch isnt working. chances are you have it turned off or set at a real low flow.