swing cylinder removal

[oldtech8]

I have an old BX22 with a BT600 backhoe on it. The swing cylinder is leaking and I want to remove it to get it rebuilt. I had no problem removing the pin from the rod end. However I am having no success removing the pin on the other end of the cylinder. I have removed the only bolt I can find. I have tried driving it down using a drift and 4lb hammer. It doesn't move. I have place a bottle jack underneath and tried to push the pin up. No luck.

 

[RCW]

Looks to be just that one bolt holding the pin on that end too.

Maybe a good soak with penetrating oil, including a good dose into the hole where the bolt was?

 

[Jinx]

I have an old BX22 with a BT600 backhoe on it. The swing cylinder is leaking and I want to remove it to get it rebuilt. I had no problem removing the pin from the rod end. However I am having no success removing the pin on the other end of the cylinder. I have removed the only bolt I can find. I have tried driving it down using a drift and 4lb hammer. It doesn't move. I have place a bottle jack underneath and tried to push the pin up. No luck.

That sounds frustrating—those pins can be really stubborn, especially if there’s rust, grime, or pressure on the cylinder.





Since you’ve already removed the bolt and tried both a drift with a hammer and a bottle jack, here are a few things that might help:

1. Check for hidden set screws or retaining rings. Sometimes they’re covered in grease or dirt and easy to miss.
2. Apply heat (carefully) around the pin housing with a torch—just enough to expand the metal slightly. That can often break the bond if it’s rusted or seized.
3. Relieve hydraulic pressure on the cylinder, if you haven’t already. Try cycling the boom and swing to neutral positions, or disconnect the hoses and move the backhoe slightly to relieve any tension.
4. Soak it overnight with penetrating oil (PB Blaster, Kroil, etc.). Sometimes it takes a few rounds and some patience.
5. Try vibration. An air hammer with a blunt tip or a hammer drill (without rotation) can sometimes loosen it better than brute force.

 

[oldtech8]

Looks to be just that one bolt holding the pin on that end too.

Maybe a good soak with penetrating oil, including a good dose into the hole where the bolt was?

View attachment 155528

Thank you!

 

[oldtech8]

That sounds frustrating—those pins can be really stubborn, especially if there’s rust, grime, or pressure on the cylinder.





Since you’ve already removed the bolt and tried both a drift with a hammer and a bottle jack, here are a few things that might help:

1. Check for hidden set screws or retaining rings. Sometimes they’re covered in grease or dirt and easy to miss.
2. Apply heat (carefully) around the pin housing with a torch—just enough to expand the metal slightly. That can often break the bond if it’s rusted or seized.
3. Relieve hydraulic pressure on the cylinder, if you haven’t already. Try cycling the boom and swing to neutral positions, or disconnect the hoses and move the backhoe slightly to relieve any tension.
4. Soak it overnight with penetrating oil (PB Blaster, Kroil, etc.). Sometimes it takes a few rounds and some patience.
5. Try vibration. An air hammer with a blunt tip or a hammer drill (without rotation) can sometimes loosen it better than brute force.

Thank you!

 

[MapleLeafFarmer]

That sounds frustrating—those pins can be really stubborn, especially if there’s rust, grime, or pressure on the cylinder.





Since you’ve already removed the bolt and tried both a drift with a hammer and a bottle jack, here are a few things that might help:

1. Check for hidden set screws or retaining rings. Sometimes they’re covered in grease or dirt and easy to miss.
2. Apply heat (carefully) around the pin housing with a torch—just enough to expand the metal slightly. That can often break the bond if it’s rusted or seized.
3. Relieve hydraulic pressure on the cylinder, if you haven’t already. Try cycling the boom and swing to neutral positions, or disconnect the hoses and move the backhoe slightly to relieve any tension.
4. Soak it overnight with penetrating oil (PB Blaster, Kroil, etc.). Sometimes it takes a few rounds and some patience.
5. Try vibration. An air hammer with a blunt tip or a hammer drill (without rotation) can sometimes loosen it better than brute force.

I had a similar problem once and #3 from your list was my needed solution.

 

[oldtech8]

I had a similar problem once and #3 from your list was my needed solution.

thanks

 

[RCW]

Sometimes an air hammer does wonders. Good thought by @Jinx

Give it a couple/few days with penetrating oil first.

Given the size/mass of the swing assembly, I wouldn't use heat right away.

 

[Spam Bot]

After watching the video, think about the question: Will heating the metal around the pin cause it to expand and tighten the fit of the pin, or will it loosen the fit?