No32 mscope turret removal.

[Peter Laidler]

Hi Madcrate and others interested in this question and even more so, the answer. Hold fire if you can. I say that because I WAS going to do a pictorial lesson on the subject with an old clapped-out Mk1 but there are several problems. The first is that you can easily unscrew and remove the deflection drum but you can run into problems with SEVERE tightness when you put it back if you're not aufait with the procedure and the way everything is inter-related mechanically (and optically).

The Range drum is a BIT easier as there is a little more mechanical leeway/tolerance there. But the down side is that you must withdraw the grat housing (the diaphragm/diaphram) to reassemble it all. And unless you are EXTREMELY, extremely careful you're going to touch the grat or crosswire and............

Another point is that the lead screw threads are 2x multi-start and over the course of 60 or so years, have formed a matched set with the cursor slide (Def) and diaphragm nut (range). You CAN put the lead screw back 180 degrees out in many cases but in others, the leadscrew will bind. And if it binds when you're assembling the range drum and you fumble with the diaphragm............................

What I'd suggest you do madcrate breaker is to get hold of an old, clapped Mk1 and practice with it for a while....., get the feel of it so to speak Don't worry about breaking the bits and pieces like the grat or pins or shearing stuck screws. Once you've got the hang of it, I'll fix it for you.

And talking about sheared screws, just be VERY careful when it comes to undoing tight 8BA turret screws as they're prone to shearing off just below the level of the housing. But dn't let me put you off...................