Simple things and not so simple things

The simple task was changing track pads for an excavator. As usual I used the bucket as a jack, and turned the track so I could get at the shoes that needed to be replaced. I was unable to get the bolts of with a 1" gun so I ended up using a torch to heat up the nut and then quickly remove the bolt. After the shoes were removed I was careful to clean the mounting surface on the chain and the bottom side of the track pad.

The not so simple thing was a no start compressor that has been having the issue on and off for a while now. Several mechanics have worked on this and it has a brand new alternator, battery etc. When I cranked it over it sounded like it was starting under compression but it was hard to tell. It also cranked but not very strongly.

The first thing I did was remove the unloader valve and I ended up finding a pretty sizeable groove in it and when you moved it with your fingers it seemed to stick. I sanded down the groove with very fine emory cloth, and reassembled it.

40hr
240hr