My 2006 B2710 HST with FEl was working fine before I had to do a timely transmission fluid and filter change. Now the power steering, FEL, and 3 pts hitch aren’t working except the drive part. I left the engine running at medium speed for about 20 minutes to see if the hydraulic fluid would bleed out air and go to all system but still nothing works. Am I missing something? Not enough fluid?
B2710 hydraulic system not working after changing fluid and filters
- Thread starter GhostRider29
- Start date
Chances are the hydraulic pump lost prime. That the suction line off the hydraulic pump and put some hydraulic oil in the pump. The pump should pick it up and start working. Don't run the tractor long if it doesn't start pumping.
Thanks for the suggestion, I’ll check on it tomorrow. I’ll try to figure out where the suction line is. I’ll let you know if the problem is solved. Again, many thanks.
TheOldHokie
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The suction pipe is what you disconnected to change the strainer. Check the seals (orings) at the transmission and hose clamps up by the pump. You probably introduced a suction leak.
Dan
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Thanks for the tips, I did not have the chance to work on my tractor today. For the hydraulic pump, which one? By the motor (right side) or on top of the transmission. If there’s a suction leak, should the hydraulic fluid leak out too?
Michael
Another trick which has helped some is to use a shop vac on the blow setting and pressurize the transmission thru where you added oil with the engine running.
Suction air leaks usually do not involve fluid leaking out which is why they are so hard to find
Dave
I tried what you suggested, nothing happened so I added 1 qt more fluid then went thru the same procedure such as blowing etc. The fluid came out of the breather tube on the top of the pump housing
I forgot to add one more thing, I’ll check the o rings where the suction pipe go to the transmission. Will the fluid flow out?
I decided to order two new o-rings for the suction pipe. Should I add gasket dresser on them when replacing the o-rings?
Just use some hydraulic oil to the "O" rings before you put them onto the pipe and when you insert them back into the holes they came out of. This will allow the O rings to slide into place and seal. If they are dry there is a chance that they can roll off and not make the proper seal.
North Idaho Wolfman
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Yes it will dump all the hydraulic fluid when you remove the suction pipe.
Drain it into a clean container, and do not overfill it this time.
Could you have overfilled the trans? Next time while doing the blowing, plug the vent line outlet with your finger.
Dave
TheOldHokie
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Equipment
L3901/LA525, B7200DT/B1630, G2160/RCK60, G2460/RCK60
Lets be clear.
The pump is on the right side of the engine.
The breather tube is on top of the transmission case.
The suction tube connects the pump to the hydraulic oil stored in the transmission case.
The pump pulls the oil out of transmission by applying a vacuum to the suction tube just like you drink from a cup by sucking on a straw.
Now back to previously scheduled programming
Dan