Olympus IX71 User manual
2022/01/10 05:45 1/11 Olympus IX71 Microscope Z-Axis Motor Drive Installation
Applied Scientific Instrumentation - https://asiimaging.com/docs/
Olympus IX71 Microscope Z-Axis Motor Drive
Installation
This procedure steps you through the installation and alignment of the ASI’s IX71 Z-axis motor drive
onto the Olympus IX71 microscope.
NOTE: On January 2007 Olympus changed the size of the
threaded end of their fine focus shaft from 3 mm to 4 mm.
Microscopes with serial numbers '7Axxxxxx' and newer, and
all 8-digit versions, identify the 4 mm version. The threaded
shaft diameter can also be directly measured after the left-
hand fine-focus knob has been removed. This installation
manual applies to both versions.
Typical diameter of threaded end of Olympus 4 mm fine focus shaft
ASI offers Z-Drives with drive shafts for both 3 mm and 4 mm versions
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Threaded diameter of ASI’s 3 mm drive shaft
Threaded diameter of ASI’s 4 mm drive shaft
The following tools are required for this procedure:
1/16” Allen wrench (provided)
5/64” Allen wrench (provided)
3/32” Allen wrench (provided)
7/64” Allen wrench (provided)
The procedure has three parts:
Removing the left fine focus knob1.
Installing flexible coupling2.
Installing and aligning the motor drive assembly and baseplate.3.
Installing the cover.4.
Note: the terms ‘left’ and ‘right’ refer to the sides of the microscope as viewed from the
front of the microscope.
2022/01/10 05:45 3/11 Olympus IX71 Microscope Z-Axis Motor Drive Installation
Applied Scientific Instrumentation - https://asiimaging.com/docs/
Part 1: Removing the Left Fine Focus Knob
Remove rubber boot, if present. Remove the screw that secures the outer knob to the inner left
fine focus knob with Allen wrench. Loosen set screw in knob if present.
Use Allen wrench to remove screw that secures the outer focus knob.
Unscrew inner left fine focus knob while holding the right fine focus knob.
Spring washer on brass shaft can be left in place.
Once the large knob is removed, remove the inner left fine focus knob by holding the right fine
focus knob and turning the inner knob counter clockwise to unscrew it from the shaft. Once it is
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unscrewed, note if there is a small silver wave spring washer adhered to it; if so, remove the
washer from the focus knob and place it on to the brass assembly located within the coarse
focus knob.
Part-2: Installing Flexible Coupling and Baseplate
Slide flexible coupler over threaded end of fine focus shaft while holding right hand knob in place.
Tighten clamp on flexible coupler while holding right hand knob in place.
Slide flexible coupler over the threaded end of the left fine focus shaft while holding the right fine
focus knob in place, and tighten clamp with a 2 mm or 5/64 inch Allen wrench. Ensure that it is
pressed all the way against the brass part of the left microscope knob without pushing the right focus
knob out on the other side. Check for any play in the focus shaft by pushing and pulling the focus
knob as shown on the left – no movement should be evident.
Part-3: Installing and Aligning the Z-axis Motor Drive
If shipped assembled, use the 7/64 inch Allen wrench and disassemble the Z-drive motor
assembly from base plate by removing the horizontal adjustment screw. At this time, also
loosen the two vertical adjustment screws.
2022/01/10 05:45 5/11 Olympus IX71 Microscope Z-Axis Motor Drive Installation
Applied Scientific Instrumentation - https://asiimaging.com/docs/
Remove motor drive assembly from base plate (if attached) by using the 7/64 inch Allen wrench to
remove the horizontal adjustment screw.
Use the 7/64 inch Allen wrench to loosen the two vertical adjustment screws.
Slide the baseplate assembly completely under the microscope as shown until the small stop
plate located on the baseplate is completely against the side of the microscope. This stop plate
should be parallel with the bottom of the microscope. Align the plate beneath the focus knobs.
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Slide base plate under microscope and center beneath focus assembly.
Leave base plate clamp loose at this time.
Leave base plate clamp slightly loose for later adjustment.
Slide the drive shaft of the motor drive assembly into the flexible coupler.
2022/01/10 05:45 7/11 Olympus IX71 Microscope Z-Axis Motor Drive Installation
Applied Scientific Instrumentation - https://asiimaging.com/docs/
Slide the drive shaft into the flexible coupler.
Coupler accepts about 4 mm of the drive shaft.
Reinstall the horizontal adjustment screw and tighten loosely for later adjustment.
Rotate the adjustment bar so that the lip on the bottom of the adjustment bar mates with the
groove in the baseplate. Align the holes on the adjustment bar to those on the drive and the
baseplate, and screw in the horizontal adjustment screw to hold the drive assembly in place
using the 7/64 inch Allen wrench. Leave the adjustment screws loose enough so that later the
drive can slide up and down and the adjustment bar can slide back and forth within the
baseplate.
After verifying the baseplate and motor drive is appropriately positioned under the microscope,
snugly tighten the baseplate clamp on the right side of the microscope. Use the 5/64 inch Allen
wrench to tighten the setscrew located in the middle of the clamp assembly as shown.
Tightening this setscrew will cause the silver bar to press against the side of the microscope.
Ensure that the setscrew is securely tightened to hold the baseplate assembly in place.
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Tighten the baseplate clamp snugly.
Tighten the flexible coupler’s clamp onto the drive shaft.
Tighten the clamp of the flexible coupler onto the drive shaft of the Z-drive unit using the 5/64
inch Allen wrench.
Note: The flexible coupler clamp must be securely tightened or the drive may slip.
Lightly tighten the vertical and horizontal adjustment screws as shown. Since the motor is
usually self-aligning, this should be a good position for the drive. Check the alignment by noting
the drag while rotating the right-hand fine focus knob. No noticeable drag should be felt for the
full 360º rotation of the fine focus knob. If any drag is felt other than the slight drag of the
gears, loosen the vertical and horizontal adjustment screws and move the drive to a point
where no drag is felt. Then tighten the vertical and horizontal adjustment screws.
Tighten the vertical adjustment screws after alignment.
2022/01/10 05:45 9/11 Olympus IX71 Microscope Z-Axis Motor Drive Installation
Applied Scientific Instrumentation - https://asiimaging.com/docs/
Tighten the horizontal adjustment screws after alignment.
Note: there should be no point throughout the 360º rotation of the fine focus knob where
an increase in drag is felt. If drag is felt, repeat the above steps.
Part 4: Installing the Motor Drive Cover Plate and Fine
Focus Knob
Install cover with screws as shown
Screw on small focus knob as shown.
Locate the motor drive cover. Position it over the motor drive assembly and secure in place as1.
shown, using the two small 4/40 screws and 1/16” Allen wrench provided.
Screw the microscope fine focus knob onto the shaft extension, as shown, while holding the2.
right fine focus knob. Check to ensure the left fine focus knob does not rub against the cover. If
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it does, loosen and move the cover and then re-secure the cover in place after knob rotates
freely.
Reinstall the large outer knob that was removed in Part One. Replace the rubber boot, if3.
present.
After screwing on small knob, attach the large knob.
Drive and cover installed on the Olympus IX71.
This completes the procedure for installing the ASI Z-axis motor drive onto the Olympus IX71.
zdrive, olympus, ix71
From:
https://asiimaging.com/docs/ - Applied Scientific Instrumentation
Permanent link:
https://asiimaging.com/docs/olympus_ix71_zdrive_install
Last update: 2021/09/23 17:15
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