That subject title is a bit of a mouthful, and I've probably described the thing incorrectly, but I'm having difficulty stripping down the pillar drill I recently purchased.
It's a 1986 Sealey GDM200F floor standing pillar drill that I picked up for 100 quid. I only spotted it sitting there in an empty workshop by chance as I was going to the mechanic's garage next door. Inquired, and the girl said that the firm - double glazing - were buying their windows in now instead of putting them together and so were getting rid of their machinery. She thought it might be for sale and sure enough the boss when contacted sold it to me. He said it had only ever been lightly used on PVC frames but I still probably paid too much for it at 100. Cost £200 in 1986 but then machinery has come down a lot in price since then.
It did come with a 6" cross vice and a few bits which was a bonus.
Anyway, while it seems to work fine - and is nice and quiet - it seems to have spent most of its life in top gear with the result that the mechanisms for changing speed/gear had become all gunked up. The other thing is that the bolt that controls the drilling depth isn't tightening properly. This all means that I wanted to get inside the head bit.
I took the head off, removed the motor and loosened up and removed the swinging middle pulley. Then I unscrewed the nut holding down the front aluminium pulley and wam-bang I've run into a brick wall. The front pulley will neither lift (or if it's threaded) screw off. Asked my Dad and he said there's a device - forget the name - that pulls such a wheel off. But what if the wheel is threaded on the inside? Pulling it up with force could strip the thread. I've tried squirting in loads of WD40 but it hasn't loosened so could the whole thing be somehow seized?
Maybe there's a key in the shaft locking the pulley in place. But I can't see how you could remove this without the contradiction of first unscrewing the wheel. Hmm... can anyone give me advice?
It's a 1986 Sealey GDM200F floor standing pillar drill that I picked up for 100 quid. I only spotted it sitting there in an empty workshop by chance as I was going to the mechanic's garage next door. Inquired, and the girl said that the firm - double glazing - were buying their windows in now instead of putting them together and so were getting rid of their machinery. She thought it might be for sale and sure enough the boss when contacted sold it to me. He said it had only ever been lightly used on PVC frames but I still probably paid too much for it at 100. Cost £200 in 1986 but then machinery has come down a lot in price since then.
It did come with a 6" cross vice and a few bits which was a bonus.
Anyway, while it seems to work fine - and is nice and quiet - it seems to have spent most of its life in top gear with the result that the mechanisms for changing speed/gear had become all gunked up. The other thing is that the bolt that controls the drilling depth isn't tightening properly. This all means that I wanted to get inside the head bit.
I took the head off, removed the motor and loosened up and removed the swinging middle pulley. Then I unscrewed the nut holding down the front aluminium pulley and wam-bang I've run into a brick wall. The front pulley will neither lift (or if it's threaded) screw off. Asked my Dad and he said there's a device - forget the name - that pulls such a wheel off. But what if the wheel is threaded on the inside? Pulling it up with force could strip the thread. I've tried squirting in loads of WD40 but it hasn't loosened so could the whole thing be somehow seized?
Maybe there's a key in the shaft locking the pulley in place. But I can't see how you could remove this without the contradiction of first unscrewing the wheel. Hmm... can anyone give me advice?
