Thread: How a 13c Grub Screw broke my Lathe

I've just had the replace the pullys on my MC900, The bearings were knacked so i replaced them but in the process i found both sets of pullys were either cracked or broken. It was probaby a good thing that you didn't try and get the motor pully from Carbatec because I ordered mine almost 2 months ago and they FINALLY came in on monday (ex Hong Kong or somewhere like that - Carbatec had none in Australia).

And to make matters worse, one of the halfs was a bit stiff puting it on.. So the old man gave me hand giving it a tap with a wooden hammer and broke the bloody thing

Hopefuly Carbatec had the sense to order a couple extras in when they got mine..

Glad everything worked out and you managed to get the pulleys. As others have said, these aluminium pulleys are very weak. Look at them the wrong way and they disintegrate, I have heard a few stories now of disintegrating and breaking off. Lubrication is vital with these machines and doing that will spare you having to be heavy-handed with the pulleys. Getting the circlip on is a PITA and others have suggested using clamps to hold the spring down although that didn't really work out for me. I have now made an access panel on the headstock so that I can lubricate quickly without having to take off the headstock cover and that helps and now gives me no excuse for not lubricating.