Member postings for Mark Davison 1

Edited By Mark Davison 1 on 31/01/2018 19:28:50

Edited By Mark Davison 1 on 17/01/2018 07:11:09

Edited By Mark Davison 1 on 17/01/2018 07:12:00

Edited By Mark Davison 1 on 24/11/2017 21:24:54

It wasn't a silly question, but no there wasn't. I eventually managed to remove it. I managed to build a revised puller and ended up dragging it half an inch up the shaft before the threads in the cast iron bush failed around the holes i'd drilled and tapped into it for the puller. I re-drilled and tapped them deeper (they were already 3/8" deep) and tried again. I also drilled two large holes down through the bush on the split line, in an attempt to remove some of the stress. This resulted in the bush itself finally giving up and one half coming out. The other remained and had to be separated from the pulley once it was off.. It would appear that it was the bush being stuck to the key amongst other things that was causing the issue. New bush and key ordered for a few pounds, so other the the hassle that bit was cheap to fix.

The expensive bit was discovering that I need to replace one of the two fibre gear wheels in the gear box. It is great that Meddings still sell the parts, but they aren't cheap. My bargin drill had ened up costing more than I budgeted for, but still happy with it.

Edited By Mark Davison 1 on 13/10/2017 07:41:59

Edited By Mark Davison 1 on 09/10/2017 23:06:08

Edited By Mark Davison 1 on 09/10/2017 08:24:07

I'm trying to remove the pulley from the 2 speed gearbox input shaft, without much success. It looks like it is a taper bush, but the hole on the pulley that would usually be used to remove a taper bush doesn't line up with a hole in the pulley (45 degrees out, which is a bit wierd). I tried to create the half hole in the pulley but then decided to tackle the issue a different way.

I've drilled and threaded a couple of holes into the top of the taper bush (assuming that is what it is) and made up a small puller. It pulley up on the bush and pushes down on the pulley. No joy. All I have done is bent the steel bar that I made the pulley with. I've even tried a very modest amount of heat (hot air gun as opposed to torch).

Edited By Mark Davison 1 on 09/10/2017 07:47:09

Edited By Mark Davison 1 on 09/10/2017 07:47:44

Edited By Mark Davison 1 on 09/10/2017 07:51:06

Hi, Can I ask you you removed the input pulley. Is it on a taper bush? Mine looks like it is but I can't for the life of me get the taper bush out of the pulley. The half hole in the pulley doesn't line up with half threaded hole in the pulley, it is approx 45 degrees out. I have drilled and threaded 2 M4 holes into the top face of the bush and made up a little pulley to pull up on the bush and push down on the pulley, but all it has done is bend the mild still bar that I used. Am I doing something very wrong?

Apologies for posting this in multiple Medding drill threads, I'm desperate to get some advice from someone who has removed one of these pulleys.

Hi, Can I ask you you removed the input pulley. Is it on a taper bush? Mine looks like it is but I can't for the life of me get the taper bush out of the pulley. The half hole in the pulley doesn't line up with half threaded hole in the pulley, it is approx 45 degrees out. I have drilled and threaded 2 M4 holes into the top face of the bush and made up a little pulley to pull up on the bush and push down on the pulley, but all it has done is bend the mild still bar that I used. Am I doing something very wrong?

I've just bought a 1960 MF4. How do I take the top pulley off the gear box. It looks like it has a taper bush but I can't remove it, it is stuck tight.