Help With Leica/Wild M3Z

Dave London · Apr 23, 2015

Any one know how to increase the drag on the focusing rack. Thanks

phil · Apr 23, 2015

Dave, normally on scopes you turn the focusing knobs on the rack in opposite directions to each other to increase resistance. I'm not familiar with your scope so don't know if this will help.

phil · Apr 23, 2015

Yes. Just looked into it. Hold the left knob and right knob on the focussing rack and turn them in opposite directions. That is turn one forwards and one backwards simultaneously.

Dave London · Apr 23, 2015

thanks Phil
No Joy or maybe I am just weak, the knobs don't budge

airamp · Apr 23, 2015

Hi Dave,

Take the scope off the rack, unscrew the rack gear off the mount and put a shim (paper or such behind the rack) and reassemble.

This will tighten up the scope gear/rack and should work.

AirAmp

airamp · Apr 23, 2015

Dave,

Just checked my scope on the back of the scope/ rack are two adjustment screws to tighten the rack/gear/ scope adjustment.
Forget the paper shim thing..

just tighten to your preference.

AirAmp

Ron Spokovich · Apr 23, 2015

When doing shimming of rack & pinion stuff, bear in mind NOT to bottom out the pinion teeth against the bottom of the rack. Paper is normally about .003" thick, which is a LOT for such closely machined items. Get out the micrometers and check some common items for thickness, and keep some cuttings in a marked envelope, such as aluminum foil, paper, cigarette pack cellophane, and other oddball stuff which might come in handy some day.

Dave London · Apr 23, 2015

Thanks AirAmp and Ron

Help With Leica/Wild M3Z

Dave London

~ Elite 1000 Member ~

phil

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phil

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Dave London

~ Elite 1000 Member ~

airamp

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airamp

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Ron Spokovich

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Dave London

~ Elite 1000 Member ~

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