Question about Motic DMBA 300 Binocular Microscope

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Once the stage is adjusted it comes down slowly

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  • 45 Answers

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.

Posted on Dec 11, 2009

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SOURCE: Stage slowly falls causing unfocus

Try holding the Right knob so it does not move, whilst firmly moving the Left knob towards you (clockwise), this is the adjusting method used on Zeiss Jena 1960's High End microscopes, e.g Eduaval & Ergaval.
Good luck,
Alan Mowle

Posted on Mar 20, 2009

  • 45 Answers

SOURCE: tip to adjust the moving stage

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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SOURCE: stage slides down after focusing

There is a tension adjustment for this. It is located on the coarse focus knob which is on the same side as the switch. It looks like a chrome ring with about 3 holes in it. A strange looking tool should have come with the scope. It is designed to fit into these holes and allow you to adjust the tension on the coarse focus knob. You need to tighten it just a little bit. Not too much or you will have trouble operating the coarse focus knobs smoothly.

Posted on Dec 25, 2010

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INDRAVIJAY

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