Since I was wasting time cleaning my shop I decided to try to repair my Jet table saw. About 1 1/2 years ago it started making an awful whine whenever it was running. Sounded like bearings. So I just got a new saw, put this one aside and just used the new one.
I got the bearings for it about 6 months ago, pretty cheap, $13 ea and I need two. Original OEM parts from WHM.
I had the exploded drawing, a crappy one and the bearings. So here we go. I took the side shroud off and lowered the blade, took off 3 belts and could see the nut that holds the arbor on. After some finagling I got the nut off and the serrated washer out. Now there was a spanner nut that needed to come out, it holds the bearing in the casting. Time to make a tool. Found a pc of 1/8" steel kicking around the shop and I shaped it on my edge sander, took about 15 minutes and I had a spanner wrench. Popped it on the spanner nut and twisted it and it came out - yea. Now I was looking at the bearing.
At this point I figured the arbor needed to be pushed out. Uh-huh. Put the nut on the arbor and gave it a couple of whacks to see if it would move, nope. Called Jet and got the techs voice mail. Left a message.
A buddy of mine came by at that point and we started working on it together. We both agreed the next thing was to get the arbor out. He suggested a dowel and rap it good and hard. So I did and we got it to move until the dowel bottomed out on the bearing. He went to get a punch. I found a 1/2" x8" lag bolt. The arbor had a dimple in the end of it and I put the lag bolt into the dimple and started hammering. And after a few minutes of that it was out.
Now we needed to get the bearings out of the casting. A bolt a few washers and a large socket and we had a bearing puller. Got both bearings out in 10 minutes. The first one was harder than the second.
Got out the new bearings and put the first bearing on the arbor shaft after we cleaned and oiled it. Put the spring washer, spacer on the shaft, inserted it in the casing and put the pulley on. Then commenced with the banging to get the bearing seated into the casting. Got it in about 3/4 way and then the shaft was far enough so we could start using the thread on the end of the shaft to pull it in. Got it most of the way in. Put the other spacer and bearing in and used a socket to seat it. This one was easier than the first. Put on the spanner nut and tightened it down. Seemed to be in a bit more than it was originally, the wrench I made was hitting the casting when it wasn't before. So I put the serrated washer and the nut on. We tightened the set screw on the pulley and we were done.
Found the cord and plugged it in. Fire in the hole. Pushed the on button and it fired up. No squealing, mission accomplished. Popped a blade on, the blade is slightly more left than it was originally, about 0.007". I haven put the fence on so it hasn't been tested. But it worked before and it fires up. I now had a second tablesaw. Would have been nice to have on the last job
The tech called pretty much as we were finishing up (of course). It was good timing as we had a question about the tightness of the spacers against the pulley. He was able to answer us and it reassured us. It was good timing. Total job was about 2 hours time.
love fixing tools and all the sudden having them work properly... kinda a weird feeling. I just fixed my miter saw bench and it is now too good to be true!
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