Hello all!
I've started ripping apart the swing post on my '94 JCB 214 backhoe. Its got 4600hrs. The guy I bought it from apparently didn't own a grease gun. I'm posting this not needing help but hopefully this will help someone else down the road.
The boom pin and main swing pin were quite loose. I really noticed it when I would try and lift myself up and push away to move the machine, also swinging a loaded bucket would overshoot and spill material.
The bottom two pins that connect the swing cylinders to the cast swing body were badly seized. I drilled and tapped a 5/8 bolt in the bottom, put in a tube spacer and "pulled" on the pin from the bottom. I also drill as big of a hole in the top of the pin possible, then crank up the welder and refill the hole I just drilled. It expands the pin then cools and shrinks as the weld cools. I have rescued some extremely seized pins with the welding trick alone. In the past I have use the mag drill and drill as big of a hole as possible then fill with weld. This also works good for getting out old bearing races or seized bushings.
The main pin was worn in spots almost 1/16 off the diameter. The top main bushing was worn about .165" and the middle and bottom about .125".
I will attach pics of the disassembly and pin removal, I will keep everyone updated on machining new parts and re-assembly.
I have ordered shafting material and bronze for the new bushings. Its supposed to come in either tomorrow or Wednesday!
Thanks for checking this post out!
Ben
http://ift.tt/1XHH459
Almost finished drilling, I stepped up the a 7/8 bit after this.
http://ift.tt/1UyvE5B
Cover that cylinder rod up during welding! And beating! (yes, that bar is my hammer)
http://ift.tt/1XHH30Z
http://ift.tt/1UyvE5E
Bushings cut out, everything measured and repainted!
http://ift.tt/1XHH315
http://ift.tt/1UyvBGI
I've got a couple pics of my new grading bucket, that is maybe another post though...
http://ift.tt/1XHH4lJ
I've started ripping apart the swing post on my '94 JCB 214 backhoe. Its got 4600hrs. The guy I bought it from apparently didn't own a grease gun. I'm posting this not needing help but hopefully this will help someone else down the road.
The boom pin and main swing pin were quite loose. I really noticed it when I would try and lift myself up and push away to move the machine, also swinging a loaded bucket would overshoot and spill material.
The bottom two pins that connect the swing cylinders to the cast swing body were badly seized. I drilled and tapped a 5/8 bolt in the bottom, put in a tube spacer and "pulled" on the pin from the bottom. I also drill as big of a hole in the top of the pin possible, then crank up the welder and refill the hole I just drilled. It expands the pin then cools and shrinks as the weld cools. I have rescued some extremely seized pins with the welding trick alone. In the past I have use the mag drill and drill as big of a hole as possible then fill with weld. This also works good for getting out old bearing races or seized bushings.
The main pin was worn in spots almost 1/16 off the diameter. The top main bushing was worn about .165" and the middle and bottom about .125".
I will attach pics of the disassembly and pin removal, I will keep everyone updated on machining new parts and re-assembly.
I have ordered shafting material and bronze for the new bushings. Its supposed to come in either tomorrow or Wednesday!
Thanks for checking this post out!
Ben
http://ift.tt/1XHH459
Almost finished drilling, I stepped up the a 7/8 bit after this.
http://ift.tt/1UyvE5B
Cover that cylinder rod up during welding! And beating! (yes, that bar is my hammer)
http://ift.tt/1XHH30Z
http://ift.tt/1UyvE5E
Bushings cut out, everything measured and repainted!
http://ift.tt/1XHH315
http://ift.tt/1UyvBGI
I've got a couple pics of my new grading bucket, that is maybe another post though...
http://ift.tt/1XHH4lJ
Refreshing JCB214 swing slop
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