This video shows how I made an adjustment of the Tilt Mechanism of a Marco Eye Exam Chair — which fixed the problem the chair was having.
The complaint was, the chair would not lock in the upright position. And it kept shifting (tilting) out of place.
I contacted one of my repair acquaintances (from Lombart Instruments) for advice. In a voice mail, he gave me guidance of which parts to adjust inside the Marco chair.
A week later, I was back at that exam room and was able to make the adjustments so that the chair properly locked in place.
This video also shows how the chair cushions are attached and removed (to get inside the exam chair) in order to make repairs or adjustments.
And it discusses how to have the seat cushion re-upholstered.
For further details on re-upholstery of Marco Exam chairs, visit my “Phoroptor Maintenance web-site” . See the subject, “Repair of Upholstery of exam chair, through Lombart Instruments, June 2017.” (Or try this link: https://groups.google.com/g/phoroptor... ) This subject gives a narrative explanation of how to get a Marco Chair re-upholstered, including sample photos, and typical colors of the Marco cushions.
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To see detailed printed instructions on phoroptor maintenance, visit this website: http://groups.google.com/forum/#!foru...
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Optical Maintenance videos I have posted:
Phoroptor Maintenance Tour, 2012
• Phoroptor Maintenance Tour, 2012
Phoroptor -- Close-up Details, 2012
• Phoroptor, Close up Details, 2012
Phoroptor Disassembly and Servicing, 2015
• Phoroptor Disassembly and Servicing, 2015
Cleaning Phoroptor Lenses, 2009
• Cleaning Phoroptor Lenses, 2009
Axis Tension, Turret Problems, 2014
• Axis Tension, Turret Problems, 2014
Auxiliary Lenses and JCC Problems, 2015
• Auxiliary Lenses and JCC Problems, 2015
Severe Shifting of the Cylinder Axis position, April 2016
• Severe Shifting of the Cylinder Axis posit...
Cross-Cylinder Repair --- Complete Disassembly and Cleaning, July 2016
• Cross Cylinder Repair, Complete Disassemb...
Cross Cylinder Repair -- Details of Reassembly, July 2016
• Cross Cylinder Repair, Details of Reasse...
Cross-Cylinder Repair, Updated Details, 2017
• Cross Cylinder Repair, Updated Details, 2017
Re-Glue of Two Phoroptor Lenses for Reichert Phoroptors, 2015
• Re-Glue of Two Phoroptor Lenses for Reiche...
Face Shield Design Improvement (for Reichert Phoroptors) 2019
• Face Shield Design Improvement for Reicher...
Risley Prism Adventures, July 2016
• Risley Prism Adventures, July 2016
Replace -- or Re-Paint Indicator Arrows, for Phoroptors, Jan 2019
• Replace — or Re-Paint Indicator Arrows, fo...
Phoroptor malfunction -- Cylinders lenses won't work, 2017
• Phoroptor malfunction, Cylinder lenses won...
Chart Calibration for Eye Exam Rooms, 2015
• Chart Calibration for Eye Exam Rooms, 2015
Welch Allyn Ophthalmoscopes, Cleaning the Optics, 2015
• Welch Allyn Ophthalmoscopes, Cleaning the ...
Slit Lamp Maintenance, 2015
• Slit Lamp Maintenance, 2015
Slit Lamp -- Focus Adjustments and Controls, Dec 2018
• Slit Lamp -- Focus Adjustments and Contro...
LED Slit Lamp by Haag Streit, 2018
• LED Slit Lamp by Haag Streit, 2018
Install Marco Phoroptor Arm and adjust springs, 2015
• Install Marco Phoroptor Arm and adjust spr...
Adjusting the Marco Phoroptor Arm, 2015
• Adjusting the Marco Phoroptor Arm, 2015
Marco Phoroptor Arm, Repair, 2015
• Marco Phoroptor Arm, Repair, 2015
Marco Phoroptor Arm, Repair, 2016
• Marco Phoroptor Arm, Repair, 2016
Marco Exam Chair, Tilt Mechanism, 2017
• Marco Exam Chair, Tilt Mechanism, 2017
Projector Repair, Marco CP-690E projector, Nov 2016
• Projector Repair, Marco CP 690E projector,...
Tonometer, Calibration check, and Tune-Up, Haag-Streit Applanation
Tonometer, 2018
• Tonometer, Calibration check, and Tune Up,...
Cleaning Anti-Reflection Coated Lenses, in phoroptors, 2017
• Cleaning Anti Reflection Coated Lenses, in...
Restoring a Broken Phoroptor, 2017
• Restoring a Broken Phoroptor, 2017
Phoroptors -- Servicing & Transport setup, March 2019
• Phoroptors -- Servicing & Transport setup,...
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I am now retired. During the last 20 years of my optometry career, I also did optical maintenance of equipment for over 100 eye exam rooms, annually.
I made assorted videos about the repairs & maintenance, and posted those videos on-line.
I hope to inform other “do-it-yourself” optometrists who want to know how their equipment works — and how to repair their equipment, when possible.
I posted the videos initially on “Vimeo” — and they are now also posted on YouTube.
On Vimeo, my actual name is listed.
For my YouTube videos, I use a pseudonym — “Energy Conservation in Housing” — which is the name of a book I wrote in my youth.
https://groups.google.com/g/energy-co...
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