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Tip to adjust the moving stage

The stage starts moving down when once it is adjusted

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Tighten the screws of the coarse adjustment enough so it starts generating enough friction to hold the stage again.

Posted on Dec 11, 2009


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1 Answer

My stage is no longer moving with the knobs.

With one hand push the stage down, and with the other turn the coarse adjustment down. It's a cog alignment issue. The coarse adjustment cog should be turning in order to catch the stage track.

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How do I fix a mechanical stage from ''drifting'' downwards? Won't stay in position.I move the stage up into position under the objectives but as soon as I let go of the knob the stage drifts right back...

You need to tighten the coarse adjustment so it generates enough friction to keep the stage in place. How to tighten it will vary from scope to scope, but most just have the screws on the knob (metal circle inside the knob with two holes in it). To adjust this type, you'll need a special key wrench.

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Once the stage is adjusted it comes down slowly

Tighten the screws of the coarse adjustment. You must disasseble the coarse adjustment knob (i.e. remove the plastic caps) in order to do this.

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How do I adjust the rocker arms on a 1988 astro van. I replaced a head gasket and was told these need to be adjusted, but Im not sure what to do. I have a torch wrench.

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Alan Mowle

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Problem with MF-02 binocular microscope stage

I think your problem lies in the way the stage is limited upwards. On top of the stage, right behind it where it slides against the arm, there should be a little screw.  This screw limits the movement of the stage to a certain point upwards.  If the limit exceeds the adjustment gear and its opposing track, then the stage just goes up one notch and then it clunks down.  If you screw it down the stage is limited further down, if you screw it up it's limited a bit higher.  The point of this screw is to prevent objective and slide damage.  Try adjusting this little screw a bit further down and see if it still 'clunks' when you turn it up.  After that we may work on properly adjusting it.  If not, please post again with whatever detail you can provide to aid you with this problem further.

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