![]() It has been confirmed by Paul at Meddings (very helpful). ![]() 22 target rifle - one of my other interests.īasically, Hopper is absolutely correct in his advice. I have been away from home and also somewhat distracted by my attempts to improve the fit of the butt of a BSA Martini International. Swarf, dust, fluff, muck and custard in the rack & pinion?Īpologies to all for this belated response. You should then be able to pull out the pinion shaft complete with handle etc and determine if the problem is the shaft binding or the quill/spindle binding. Undo the nut where the return sping is on the end of the pinion shaft, and with a pair of gloves and pliers carefully remove the spring, while supporting the spindle/quill. It may not help directly, but at least it's a reference-point for discussion: The machine is, I discover, a Drilltru Mk 11, 15 inch, bench drill. ![]() I like the suggestion that a lock nut or screw is tightening itself too much, but, again, where is it and how to get at it? I can't understand how the presumably straightforward and well made 'rack and pinion' type rise and fall mechanism is binding, if that is the cause. I will certainly enquire at Meddings, Ivybridge. Thank you all very much for your interest and help so far. See also my album "Meddings Pacera MB4-MF4" for exploded view of Pacera head. Must have coffee now!įault Chart for Meddings MB4/MF4. I'll look out the fault finding chart for the MF4 and put it up shortly. One of these is on the cast casing just below the gearbox "bulge" and the other right down at the bottom of the quill assembly, may be hidden by the chuck guard. Sorry, they are grease nipples, not oil, for Shell "Alvania Grease 3", or equivalent, on the MB4,MF4 models that I have had. Is there a locking screw/nut somewhere that has tightened itself? Most of them have an oil nipple somewhere on the spindle casing, a few squirts with an oil gun keeps them sweet. They still have a factory in Ivybridge and should be able to help. The tensioned spring to provide the automatic return looks fine but it is powerless against whatever is causing the friction.Ĭall Meddings. I can't see how to get at the inner workings. I have applied light oil wherever I could see that it might be useful. ![]() ![]() It requires real force to move the handle in either direction. My Meddings pillar drill has become extremely difficult to use. ![]()
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