- Joined
- Nov 28, 2016
- Messages
- 2,292
I have pretty much finished the headstock...
And moved on to the transmission. Disassembling this was not the easiest thing to figure out. There are 2 shafts, both have a bearing pressed on both ends with no easy way to press the bearings off... even planning to replace the bearings didn't make it easier... every idea I came up with would risk breaking a gear.
There are already 2 chipped gear teeth...
I would guess someone tried to slam it in gear while running and chipped both of these teeth.
I had to machine a pin spanner to remove the bearing caps...
I used a piece of 2" x ½" mild steel, bored a 1.032" hole for shaft clearance, then drilled and tapped two ¼-28 holes and used bolts for the pins. It worked, but the caps were sealed with something resembling tar, so it wasn't easy...
The internal assembly...
I finally managed to disassemble everything. It is soaking in the degreasing tank now... I have removed the shaft seals and ordered new ones.
I'm hoping reassembly will be easier... at least I won't have to deal with everything being coated in thick slime... and I can hopefully press the bearings back on with the arbor press. It will fit in the press... with a few thousandths to spare...
-Bear
And moved on to the transmission. Disassembling this was not the easiest thing to figure out. There are 2 shafts, both have a bearing pressed on both ends with no easy way to press the bearings off... even planning to replace the bearings didn't make it easier... every idea I came up with would risk breaking a gear.
There are already 2 chipped gear teeth...
I would guess someone tried to slam it in gear while running and chipped both of these teeth.
I had to machine a pin spanner to remove the bearing caps...
I used a piece of 2" x ½" mild steel, bored a 1.032" hole for shaft clearance, then drilled and tapped two ¼-28 holes and used bolts for the pins. It worked, but the caps were sealed with something resembling tar, so it wasn't easy...
The internal assembly...
I finally managed to disassemble everything. It is soaking in the degreasing tank now... I have removed the shaft seals and ordered new ones.
I'm hoping reassembly will be easier... at least I won't have to deal with everything being coated in thick slime... and I can hopefully press the bearings back on with the arbor press. It will fit in the press... with a few thousandths to spare...
-Bear