3-pt bouncing/bleeding

  
  • Thread Starter
#11  
OP
sikmusicfreak8

sikmusicfreak8

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Mar 17, 2016
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216
Location
Anza, CA
Tractor
2005 Branson 4720, 8620 Backhoe
Dave,

Thanks for the reply. I've been buying my parts through you. Is there a seal kit? If so can you provide part numbers and I'll forward them to Dakota for order?

Thanks
 
   #12  

DavesTractor

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Red Bluff, CA
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Changes often!
Dave,

Thanks for the reply. I've been buying my parts through you. Is there a seal kit? If so can you provide part numbers and I'll forward them to Dakota for order?

Thanks

Well that's sweet. Dakota will know just what you need. Send her an email and she will fire back a price and availability. And thanks for the business.
 
  
  • Thread Starter
#13  
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sikmusicfreak8

sikmusicfreak8

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Mar 17, 2016
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216
Location
Anza, CA
Tractor
2005 Branson 4720, 8620 Backhoe
Dave,
I went ahead and ordered the seal kit. I don't have the tractor at the house at the moment, any tips for replacing these? Am I having to drain the hydraulic fluid? Am I having to remove a lot of parts and pieces to get access to the piston?

Thanks for any help.
 
   #14  

LD1

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Just another idea I didnt see mentioned yet....

Do you have a drop speed control knob (usually under the seat) on that tractor?

If you do, raise the implement and CLOSE that valve all the way. then turn the tractor off. If it still bleeds down, its the cylinder. If that stopped the leakdown, the issue is the valve.
 
   #15  

EddieWalker

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Several, all used and abused.
I need to do this one of these days for my Century 2535. Is there a link anywhere to a manual or something that shows how it all goes together?
 
   #16  

DavesTractor

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Changes often!
It's pretty simple. You need to pull off the panel below the seat. That's the hardest part of the job. You do not need to drain the fluid. Then you will see the cover for the front of the cylinder. You can't see a cylinder, but you can see a roundish casting that needs to be removed. Make sure you have nothing on the three-point. Remove the cover for the cylinder. To get the piston out, sometimes you need to raise the three-points manually by lifting them up with your hands (don't start the tractor!) and then lowering them quickly to thrust the piston out of the cylinder. It is helpful for just a minute to have a helper to push the piston rearward as you raise the three-point, and to catch the piston as you fling it out. It is not captured by a fixed rod like an engine piston. Presto, it's in your hands. With air tools to remove the seat and seat pan, figure about an hour start to finish.

By all means do not remove the rockshaft housing. It is not necessary.

LD1 - good advice, thanks.
 
  
  • Thread Starter
#17  
OP
sikmusicfreak8

sikmusicfreak8

Silver Member
Joined
Mar 17, 2016
Messages
216
Location
Anza, CA
Tractor
2005 Branson 4720, 8620 Backhoe
Just another idea I didnt see mentioned yet....

Do you have a drop speed control knob (usually under the seat) on that tractor?

If you do, raise the implement and CLOSE that valve all the way. then turn the tractor off. If it still bleeds down, its the cylinder. If that stopped the leakdown, the issue is the valve.

Well I already ordered the kit, so hoping that's it. If I end up pulling the hoe off I'll check that out. If it were a valve issue, what's that going to entail?
 
   #18  

DavesTractor

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Red Bluff, CA
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Changes often!
Well I already ordered the kit, so hoping that's it. If I end up pulling the hoe off I'll check that out. If it were a valve issue, what's that going to entail?

On your Branson, it will almost for sure be the piston kit. I'd say 95% chance it's the piston seals. But LD1 offers good general diagnostic advice for this sort of situation.
 
   #19  

rasorbackq

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Aug 31, 2011
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506
Location
Springfield Nova Scotia Canada
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Branson 4720
I am also having the same issue with 3 pth jumping.
and sometime bleeding down at engine off.
After reading this thread I will have to see how the seat comes off and familiarize myself with what needs to be removed. Have any pics or part breakdown?
A while back I noticed the branson part breakdown on the net was no longer working.
 
   #20  

thekidb

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May 28, 2013
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30
Location
SW VA
Tractor
Branson 2800h
Not sure how many hours you have, but I had the same issue on my 2800h with very low hours. Turns out that there was a small metal chip in the valve that caused the pulsating and quick leak down after the engine was cut off. I had to disassemble the entire valve to find it. It was flushed out with some brake cleaner and was about the size of a tiny piece of paper clip.

When I decided to tear into mine, I called Branson about the diagram. They emailed me the exploded view of the assembly.
 
 
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