Search found 62 matches

by PrecisionInstruments
Tue Jun 13, 2023 6:57 am
Forum: Microscopes and optics
Topic: Leica ergonomic stereo microscope head schema?
Replies: 13
Views: 2005

Re: Leica ergonomic stereo microscope head schema?

Apologies for the late reply. I have just serviced a few of these heads and can see it is only two 2.5mm Allen screws to remove the top plastic cover. I can’t upload a picture, though the screw heads are quite visible when you compress the bellows at rear of the head once you have removed the 4 scre...
by PrecisionInstruments
Tue Apr 18, 2023 2:16 am
Forum: Microscopes and optics
Topic: Leica ergonomic stereo microscope head schema?
Replies: 13
Views: 2005

Re: Leica ergonomic stereo microscope head schema?

It a problem, These are the four screws that will disengage a metal retainer which is holding g the bellows to the bottom plate. It won’t allow you to remove the bottoms plate, but you can lift the bellows up to access three screws that hold the top plastic cover on. I haven’t been able to clean the...
by PrecisionInstruments
Mon Apr 17, 2023 3:24 am
Forum: Microscopes and optics
Topic: Leica ergonomic stereo microscope head schema?
Replies: 13
Views: 2005

Re: Leica ergonomic stereo microscope head schema?

I don’t have a manual, though I know there are approx 4x 2.5mm Allen screws on the underside that when removed, allow you to seperate the black bellows from the bottom plate. You can then get to three 2.5mm Allen screws through the bellows that will remove the plastic top cover. I also haven’t been ...
by PrecisionInstruments
Wed Aug 24, 2022 11:06 am
Forum: Microscopes and optics
Topic: Wild (Leica) M3Z stereo microscope inner view?
Replies: 2
Views: 736

Re: Wild (Leica) M3Z stereo microscope inner view?

There is a pin (approx 2-3mm in diameter) on the inside of that cam, either on that lobe or the other, which also has a machine groove which looks like a circlip would fit (but it doesn’t). The rectangular thin brass plate which has the oval shaped hole slips over that pin (pin goes through hole), a...
by PrecisionInstruments
Sat Feb 26, 2022 1:32 am
Forum: My microscope
Topic: Leitz condenser - Cleaning
Replies: 11
Views: 3455

Re: Leitz condenser - Cleaning

Remove the four screws on the top of the condenser turret. This will provide access to the top of the lower optic. The flip top lens has a pin which will fit in between a folk. You’ll see this once open. The four screws on the top plate around the perimeter sorry. Removing these screws will allow y...
by PrecisionInstruments
Thu Feb 24, 2022 3:22 am
Forum: My microscope
Topic: Leitz condenser - Cleaning
Replies: 11
Views: 3455

Re: Leitz condenser - Cleaning

Remove the four screws on the top of the condenser turret. This will provide access to the top of the lower optic.

The flip top lens has a pin which will fit in between a folk. You’ll see this once open.
by PrecisionInstruments
Sun Nov 21, 2021 6:51 am
Forum: Microscopes and optics
Topic: Repair or parts manual for Leica MZ6 stereo microscope?
Replies: 13
Views: 4131

Re: Repair or parts manual for Leica MZ6 stereo microscope?

Definitely a roller bearing should be rolling over the brass cam, which should be pressed over that stub as you have thought. Although having serviced thousands of MZ6’s, I have never taken measurement of the roller bearing, not ever had to replace one. I would estimate the roller bearing to be appr...
by PrecisionInstruments
Sat Jun 26, 2021 11:15 am
Forum: Microscopes and optics
Topic: Wild Heerbrugg M8 scraping noise on zoom
Replies: 9
Views: 4521

Re: Wild Heerbrugg M8 scraping noise on zoom

Original factory lubricant is Kluber Isoflex Topas NB 5051 I have to buy in 1Kg tub due to location. Should be able to source smaller quantities if in Europe I would imagine. Use sparingly Thanks for the info. Was this lubricant used in all of the other Wild stereos as well, i.e. M7, M3 -series, M1...
by PrecisionInstruments
Sat Jun 26, 2021 11:04 am
Forum: For forum members who want to buy and sell equipment
Topic: WTB Olympus BH2 BHS Broken For Parts
Replies: 2
Views: 1284

Re: WTB Olympus BH2 BHS Broken For Parts

What are the parts you require exactly?
by PrecisionInstruments
Tue Jun 22, 2021 12:48 pm
Forum: Microscopes and optics
Topic: Wild Heerbrugg M8 scraping noise on zoom
Replies: 9
Views: 4521

Re: Wild Heerbrugg M8 scraping noise on zoom

Original factory lubricant is
Kluber Isoflex Topas NB 5051
I have to buy in 1Kg tub due to location. Should be able to source smaller quantities if in Europe I would imagine.
Use sparingly
by PrecisionInstruments
Sun Mar 21, 2021 5:47 am
Forum: Microscopes and optics
Topic: Wild M5a stereo microscope pros and cons?
Replies: 6
Views: 3168

Re: Wild M5a stereo microscope pros and cons?

M8 = Complete zoom range from minimum to maximum mag
M5 = 5 magnification steps only
by PrecisionInstruments
Mon Mar 01, 2021 11:45 pm
Forum: My microscope
Topic: Leica / Reichert Jung Polyvar Microscope Illuminator Plug Type
Replies: 14
Views: 5288

Re: Leica / Reichert Jung Polyvar Microscope Illuminator Plug Type

As mentioned, the pin diameter is 3mm, with a length of 10mm. The distance between pins in approx 6.5mm. So, pin centre to pin centre would be 9.5mm. The diameter of the round black plastic part of plug is 16mm. Then you have the male and female semicircle lumps (key way) which both have a radius of...
by PrecisionInstruments
Sat Feb 27, 2021 10:33 pm
Forum: My microscope
Topic: Leica / Reichert Jung Polyvar Microscope Illuminator Plug Type
Replies: 14
Views: 5288

Re: Leica / Reichert Jung Polyvar Microscope Illuminator Plug Type

Sure, 11 302 013 170 001 - ‘Jack’ There is also a plastic spacer between the socket and frame, which contains the keyway to the shape of the plug. Sometime if the plug/socket has become too hot, this warps and you may not be able to fit a new plug into it. This is 11 302 013 170 003 - ‘guide plate’ ...
by PrecisionInstruments
Fri Feb 26, 2021 8:50 pm
Forum: My microscope
Topic: Leica / Reichert Jung Polyvar Microscope Illuminator Plug Type
Replies: 14
Views: 5288

Re: Leica / Reichert Jung Polyvar Microscope Illuminator Plug Type

This style plug was used right up to to current Leica models.
Part should still be available from a Leica service dealer.
Part number is 11 307 155 004 015
Description is ‘power cord’
by PrecisionInstruments
Sat Dec 26, 2020 3:24 am
Forum: Microscopes and optics
Topic: Leitz Orthoplan focus block disassembly docuemtation
Replies: 26
Views: 11048

Re: Leitz Orthoplan focus block disassembly docuemtation

Not a problem The wedges are captured by the upper 3mm hex bolts. They can be lowered or raised which will tilt the stage and condenser block back or forwards. If they aren’t set correct, not only will your stage be on an angle, but the condenser will also push the light path away from the centre op...
by PrecisionInstruments
Thu Dec 24, 2020 1:44 am
Forum: Microscopes and optics
Topic: Leitz head needing some work
Replies: 10
Views: 4289

Re: Leitz head needing some work

Removing the center plate won’t reveal much, just the other sides of the dovetails. There should be four phillips head screws that you should see through the top of the photo port, these will remove the port. Yes, just removing the four (2 already visible, 2 under port) flat head screws will allow y...
by PrecisionInstruments
Wed Dec 23, 2020 11:11 pm
Forum: Microscopes and optics
Topic: Leitz head needing some work
Replies: 10
Views: 4289

Re: Leitz head needing some work

That’s good news As expected, removing the photo tube will reveal two more flat head screws. Removing all four flat head screws will allow you to remove the prism assembly from the head box frame. You don’t have to remove the image path selector knob as that assembly will stay with the frame. Removi...
by PrecisionInstruments
Tue Dec 22, 2020 11:08 pm
Forum: Microscopes and optics
Topic: Leitz head needing some work
Replies: 10
Views: 4289

Re: Leitz head needing some work

Are there two flat head screws on top of the head? If so, there will be two more under the camera port (port needs to be removed to access). The silver image path selector knob needs to be removed as well from memory, it’s on a spline and should just pull off. A picture of both top and bottom would ...
by PrecisionInstruments
Mon Dec 14, 2020 7:54 am
Forum: Microscopes and optics
Topic: Leitz Orthoplan focus block disassembly docuemtation
Replies: 26
Views: 11048

Re: Leitz Orthoplan focus block disassembly docuemtation

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by PrecisionInstruments
Mon Dec 14, 2020 7:35 am
Forum: Microscopes and optics
Topic: Leitz Orthoplan focus block disassembly docuemtation
Replies: 26
Views: 11048

Re: Leitz Orthoplan focus block disassembly docuemtation

Hi Fred, Regarding lubricants, I use only what the factory suggest. One of the original lubricants used is actually still available being Kluber Nontrop KR 291 (Leitz called it 410), it goes green and hard over time. I have to order it by the Kg, though that may due to my local distributor. Only a f...
by PrecisionInstruments
Tue Dec 08, 2020 11:31 am
Forum: Microscopes and optics
Topic: Leitz Orthoplan focus block disassembly docuemtation
Replies: 26
Views: 11048

Re: Leitz Orthoplan focus block disassembly docuemtation

The Orthoplan focus is extremely complex, rebuilding is something that takes lengths of training and supervising to become comfortable with. To remove the focus block, which is the Z-axis liner bear block along with coarse/fine focus system, there are 4x 3mm hex head screws. Removing this block will...
by PrecisionInstruments
Tue Dec 01, 2020 9:24 pm
Forum: Beginner's corner
Topic: Spot on FoV driving me insane
Replies: 30
Views: 7830

Re: Spot on FoV driving me insane

Does adjusting the height of the condenser take it in and out of focus? If so, most likely on mirror or lens close by to it
by PrecisionInstruments
Tue Dec 01, 2020 7:30 am
Forum: Beginner's corner
Topic: Australian Power Plug/ Adapter Use Question
Replies: 6
Views: 2609

Re: Australian Power Plug/ Adapter Use Question

If you’re in Perth, I’ll fit an Aussie plug for you at no charge.
Is the instrument going to be rated for 240VAC 50Hz?
by PrecisionInstruments
Sun Nov 29, 2020 7:00 am
Forum: For forum members who want to buy and sell equipment
Topic: Selling Rare Leitz 1936 Polarization Microscope
Replies: 4
Views: 2432

Re: Selling Rare Leitz 1936 Polarization Microscope

Beautiful scope!!
But has someone polished that stage? Ouch!!
by PrecisionInstruments
Wed Nov 11, 2020 9:37 pm
Forum: Microscopes and optics
Topic: So, will I get the optics clean (Wild drawing tube)?
Replies: 6
Views: 3167

Re: So, will I get the optics clean (Wild drawing tube)?

If you place a picture up of the entire drawing tube from both above and below, I will annotate the image with arrows explains how it’s comes apart. They are quite simple.

It may take me a day or two to check back in though.
by PrecisionInstruments
Sun Nov 08, 2020 10:42 am
Forum: Microscopes and optics
Topic: Service of Vanox AH rotating stage
Replies: 12
Views: 4527

Re: Service of Vanox AH rotating stage

The BH2 rotatable stage is very simple. You would remove, or back off, the cantering screws AA849500. Then pull the stage against the spring pin AA695400, then tilt the rear of stage upwards and out. It’s possible the banks is the same though you may need to remove the lever that engages the 45* cli...
by PrecisionInstruments
Tue May 26, 2020 12:03 pm
Forum: Beginner's corner
Topic: Leitz Paperweight
Replies: 25
Views: 7845

Re: Leitz Paperweight

O.K. folks ... looks like it’s a School-day : https://www.researchgate.net/publication/261569975_In_vivo_assessment_by_Mach-Zehnder_double-beam_interferometry_of_the_invasive_force_exerted_by_the_Asian_soybean_rust_fungus_Phakopsora_pachyrhizi MichaelG. It looks like the lamp house on the back of t...
by PrecisionInstruments
Tue May 26, 2020 11:46 am
Forum: Illumination Techniques
Topic: Leitz Laborlux 12 darkfield filter
Replies: 4
Views: 2957

Re: Leitz Laborlux 12 darkfield filter

I’m sorry, I have only just now noticed you have said it’s at the end of a long barrel, do you have a picture of it?