SSV75 Cylinder Arm Seal Replacement - M20 Bolt wont let go

[dcad]

I am hoping someone here has changed the seals on a SSV75 or SSV65 Hydraulic Arm Cylinder, right side.

I have the cylinder rod off the machine but to separate the piston from the Rod there is a black Oxide M20 bolt. Nothing on the head of the bolt suggests LH thread but I cannot break this loose using my 2200Ft/Lb torque impact wrench. I also tried my torque multiplier and its still not budging and Im not wanting to force this further if it is LH. I know Kubota likes to torque and glue their threads but this seems ridiculous and makes me think Im missing something. Can anyone shed light?

Below diagram shows the assembly for the cylinder, rod and bolt in question.

Thanks!

 

[Dustyx2]

It will be right hand thread and assembled with Loctite. You need to heat the bolt head to at least 350F to release the bond. Piston retainer nuts and bolts are notorious for coming loose, so they are torqued to high
values and often times Loctited. I would have thought your impact would have easily twisted that bolt off.

 

[dcad]

It will be right hand thread and assembled with Loctite. You need to heat the bolt head to at least 350F to release the bond. Piston retainer nuts and bolts are notorious for coming loose, so they are torqued to high
values and often times Loctited. I would have thought your impact would have easily twisted that bolt off.

Thanks for confirming. I had the MAPP torch on the head for about 45 seconds without success as its
one big heatsink but at least I know Im on the right track....I ordered a new bolt and will keep at it.