Gav88
Member
Hi all, I'm about to remove the swing motor from my late 80's, early 90's AX40U Airman excavator and was wondering if there is an easy way to do this, any tips would be greatly appreciated. Reason for removal is when slewing the machine, it jumps and grinds like there is something stuck in the gears. When slewing slowly the machine will at times get stuck and will need to slew the other way and then slew back quicker to get past the sticking point. I have separated the machine and checked the main gear and pinion but this was all found to be in good condition. I also pulled apart the main bearing and separated the bearing races and again found very little wear here. There was some very minor marks in the race and one or two balls had some very minor marks, but nothing that would suggest an issue. Also, would anyone have any suggestions on where I could get a hydraulic schematics for this machine. Thanks very much, Gavin.