CAT 941b Bevel gear backlash setting

[charles walton]

Can anyone tell me if it’s possible to set the backlash by feel if you don’t have a dial indicator?

 

[tctractors]

you would be pushing your luck some to get this but I can tell you what I have found, I will say first that I have all the tools so can get a good standard established easily, firstly you need to make a C spanner to fit the adjusters and it needs to be thin possibly 6 to 8mm, then you need to set a pre-load on the cross shaft bearings with lots of pinion to bevel gear lash, then adjust the pre-load in by undoing the 1 adjuster 1 or 2 notches and doing up the other adjuster 1 or 2 notches until the lash tightens to zero lash with the pre-load still maintained as in the start, then undo and do up the adjusters 1 notch to find lash and that will be about the correct standard, check this setting around the bevel to make sure this stays similar, if all good then tighten the cap down on the opposite side to the bevel gear first, job done.

 

[charles walton]

you would be pushing your luck some to get this but I can tell you what I have found, I will say first that I have all the tools so can get a good standard established easily, firstly you need to make a C spanner to fit the adjusters and it needs to be thin possibly 6 to 8mm, then you need to set a pre-load on the cross shaft bearings with lots of pinion to bevel gear lash, then adjust the pre-load in by undoing the 1 adjuster 1 or 2 notches and doing up the other adjuster 1 or 2 notches until the lash tightens to zero lash with the pre-load still maintained as in the start, then undo and do up the adjusters 1 notch to find lash and that will be about the correct standard, check this setting around the bevel to make sure this stays similar, if all good then tighten the cap down on the opposite side to the bevel gear first, job done.

Thanks, I’ll take my time and maybe I can figure it out like that.