Olympus IX71 Manuel utilisateur

2022/01/10 05:45 1/11 Olympus IX71 Microscope Z-Axis Motor Drive Installation

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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.

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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.

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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.

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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.

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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

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Permanent link:

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Last update: 2021/09/23 17:15

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