Lost the hydraulics suddenly and completely on the 3 Point Lit and the Front End Loader. The Power stering is still operation fine. Any ideas? A stuck by-pass? The 3 Point knob under the seat is wide open.
M5700 location of bypass valve? lost 3 pt and loader hydraulics
- Thread starter Tewaca Ranch
- Start date
rbargeron
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L5450, L48, L3250, L345 never enough attachments
The M5700 has a 2-chamber pump, front for loader and 3-point, rear for steering. Except for using the same reservoir, the two systems are independent. Some models have a "bypass block" which diverts flow to the loader, but not all. For both loader and 3-pt to be affected, coupler somewhere could be loose/disconnected. See https://apps.kubotausa.com/illustrated-parts/ for your exact model's plumbing.
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TheOldHokie
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L3901/LA525, B7200DT/B1630, G2160/RCK60, G2460/RCK60
Not likely a relief valve problem. That is frequently. a problem with the power beyond circuit. Backhoe or rear remotes on your tractor?
Dan
North Idaho Wolfman
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L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Sorry I disappeared for a few days...
I did change the fluid and filter, but that was after the loader and 3 point quit. I put a pressure gauge in line on the loader quick connects - Zero PSI on all of them. The lines going from the pump back are buried under the fender and seat area. What do I check next?? Open to all suggestions!
I did change the fluid and filter, but that was after the loader and 3 point quit. I put a pressure gauge in line on the loader quick connects - Zero PSI on all of them. The lines going from the pump back are buried under the fender and seat area. What do I check next?? Open to all suggestions!
TheOldHokie
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Equipment
L3901/LA525, B7200DT/B1630, G2160/RCK60, G2460/RCK60
Disconnect the hose on the P port of the loader valve and check for oil flow coming to the valve.
Dab
It has one set of remotes on the rear, I've never used them. I guess I could get the right fitting and get my Hyrdaulic gauge rigged up and see if it's getting pressure. No pressure at the controller for the FEL on any of the quick connects. I can't see where to hook up to check for pressure at the 3 Point, which is also dead. Any ideas would be a help in the right direction!
I disconnected lines going into the controller, oil shot through the hose. I also disconnected the feed at the top o the hydraulic pump and it pumps vigorously too. ?
TheOldHokie
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Equipment
L3901/LA525, B7200DT/B1630, G2160/RCK60, G2460/RCK60
Hmmmm....
Disconnect hose comnecyed to the outlet port on valve and check pressure on that port. If you do not know where that port is post a picture of your valve.
Dan