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Hi. I have a new lower feed roller shaft and new gear box being delivered for my sub 750kg Jensen woodchipper. 

Engineers struggled to get old shaft out of previous gear box. 

Is it a specialist job to assemble new shaft into new gearbox? 

Any advice would be appreciated. 

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Sometimes, it is best to take it back to your nearest dealer and pay them to do stuff. That frees you up to earn while you spend! Once you start to strip down the assembly, things should become clear how it goes together.  Is there no exploded tiaras in the owners or parts manual?

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Cut shaft off half way along 


Weld a bolt to the shaft.


Hammer shaft out.


That's How I'd do it.



Don't expect the lower fees roller to come off the old shaft easy.You might have to bore the shaft out then wash the rest of the shaft out with gas.


This is simple stuff,get another firm to look at it.



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