Warning on the cross feed handle,with the auto feed mechanism there is a nipple which looks like a grease nipple,it is an oil nipple,do NOT use grease,or it will stiffen up the internal mechanism and the auto feed will not work. A Jones and Shipman service engineer who I met some years ago said they were often called out following complaints of stiff or non working feed.The solution if grease has been used is to dismantle and wash out,Be careful to note the position of the banana shaped bronze casting which operates the ratchet feed,replace it the wrong way round and it only feeds in one direction, I have a nice 540P (power up and down) but I cannot get a really good finish yet I used a few of these in my working days and got the usual excellent results as its one of the best tolroom grinders, I put my poorer results down to using a phase converter as I get similar finish problems with my larger Colchester.