- Joined
- Jul 29, 2014
- Messages
- 2,848
Tuesday I brought home this bandsaw:get that air pump working. You'll be glad you have it working. if it doesn't work, take it apart and work on it.
It needs some attention, for one the belt driven air pump didn’t work, and woodchucker got on me about getting that fixed. You know, eventually we get enough tools that no matter how complicated the task, we are confident we can mess it up. So I took the pump out and apart. It’s a pretty simple and effective looking design, with an impeller that holds four plastic vanes. The impeller is a press fit on a shaft with two also pressed on bearings further pressed into a housing. The impeller is also secured to the shaft with a blind roll pin. Ugh. I had to use a 1/8” carbide end mill to chew it out, then I could press it off the shaft. There were two directions it could come off, and I chose the wrong one and buggared up the shaft. Ordered new bearings, I’ll make a new shaft, the impeller and vanes are fine, so with a lot more pressing, it should work fine again.