Olympus BH-2 Teardown, Cleaning And Reassembly
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Olympus BH-2 Teardown, Cleaning And Reassembly

Olympus BH-2 Teardown, Cleaning And Reassembly

Miscellaneous parts of microscope frames
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Teardown, Cleaning, and Reassembly
of the Miscellaneous Parts of the
Olympus BH-2 Microscope Frames
All rights reserved. This document may not be reproduced or distributed, in whole or in part, for any
commercial purpose without the express written consent of the author (carlh6902@gmail.com).
Permission is hereby granted to distribute this PDF document in its entirety for personal, non-commercial
purposes only, provided that the contents are not modified in any way, including the copyright notices
contained herein. This document may be freely distributed on WWW, FTP, or BBS sites in accordance with
these restrictions. The content of this document is provided for informational purposes only, with no
expressed or implied warranties whatsoever, including, but not limited to, function, suitability, safety,
accuracy, or completeness of information.
Revision
Description of Changes
1
Initial Release
Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames
Revision 1
Copyright © 2021 Carl Hunsinger
Revision History
Date
April 20, 2001
Revision 1
Page 1 of 45

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  • Page 1 Revision History Revision Description of Changes Date Initial Release April 20, 2001 Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 1 of 45...

  • Page 2: Table Of Contents

    Remove Light Inlet Assembly (BHT/BHTU) ______________________________________________________ 31 Servicing the Light Inlet Assembly (BHT/BHTU) ___________________________________________________ 31 Disassemble the Light Inlet Assembly (BHT/BHTU) ________________________________________________ 31 Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 2 of 45...
  • Page 3 Figure 29 – Slide mounting disk to expose the shaft end ....................14 Figure 30 – Clamp mounting disk to keep shaft exposed ....................14 Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1...
  • Page 4 Figure 82 – Remove screws securing brass plate to stator .................... 23 Figure 83 – Lift and remove the brass retaining plate ....................23 Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1...
  • Page 5 Figure 135 – Loosen the lower retaining ring ........................ 33 Figure 136 – Remove the lower retaining ring ......................33 Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 5 of 45...
  • Page 6 Figure 188 – Field ring at maximum clockwise point ..................... 42 Figure 189 – Field ring at maximum counterclockwise point ..................42 Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 6 of 45...
  • Page 7 Figure 192 – Dust cap for BHS/BHSU light port (top view) .................... 43 Figure 193 – Light port capped for storage (BHS/BHSU) ....................44 Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1...

  • Page 8: Introduction

    Consult the designed to intentionally cam-out as a means to limit Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 8 of 45...

  • Page 9: Solvent Compatibility With Parts And Finishes

    Figure 2 – The viewing head locking screw (BHS/BHT) Figure 4 – Hold the threaded outer barrel stationary Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 9 of 45...

  • Page 10: Figure 5 - Loosen And Remove The Slotted End-Screw

    Figure 7 – Mounting disk from an old binocular head Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 10 of 45...

  • Page 11: Figure 10 - Secure Mounting Disk So The E-Clip Stays Out

    15). Figure 12 – Carefully remove e-clip from the plunger shaft Figure 15 – Remove spring from stationary inner barrel Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 11 of 45...

  • Page 12: Clean Components Of The Locking Screw (Bhs/Bht)

    Figure 18 – Clean the bore of the stationary inner barrel Figure 21 – Wash the grease from the extension spring Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 12 of 45...

  • Page 13: Reassemble The Locking Thumbscrew (Bhs/Bht)

    Figure 27 – Test the motion of the spring-loaded plunger Figure 24 – Insert plunger into bore of the inner barrel Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 13 of 45...

  • Page 14: Figure 28 - Place The Mounting Disk Into Dovetail Recess

    33). Figure 33 – Reinstall end-screw into knurled outer barrel Figure 30 – Clamp mounting disk to keep shaft exposed Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 14 of 45...

  • Page 15: Servicing Viewing Head Locking Screw (Bhsu/Bhtu)

    Figure 38 – Remove e-clip from the end of thumbscrew Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 15 of 45...

  • Page 16: Clean The Locking Screw (Bhsu/Bhtu)

    Figure 41 – Clean the threads of the tapped hole Figure 44 – The ring groove for the retaining e-clip Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 16 of 45...

  • Page 17: Nosepiece Slide Mount

    (see Figure 50). Figure 50 – Remove the nosepiece locking thumbscrew Figure 47 – Refurbished thumbscrew is ready for use Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 17 of 45...

  • Page 18: Remove The Nosepiece Slide Mount (Bhs/Bht)

    Use a suitable solvent (acetone) to clean any grease or contaminants from the slide-mount base (see Figure 56). Figure 53 – Remove the slide mount from the pillar arm Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 18 of 45...

  • Page 19: Servicing The New-Style Slide Mount (Bhs/Bht)

    (see Figure 61). Figure 58 – Remove the locking-block stop screw Figure 61 – Thoroughly clean slide-mount base (new style) Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 19 of 45...

  • Page 20: Reassemble The New-Style Slide Mount (Bhs/Bht)

    67). Figure 67 – Slide-mount parts ready for use (new style) Figure 64 – Position locking block under slide-mount base Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 20 of 45...

  • Page 21: Reinstall The Nosepiece Slide Mount (Bhs/Bht)

    70). Figure 73 – Newly serviced slide mount ready for use Figure 70 – Secure nosepiece slide mount with screws Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 21 of 45...

  • Page 22: Field-Diaphragm Assembly

    See Figure Figure 76 – Remove screws securing the field diaphragm Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 22 of 45...

  • Page 23: Figure 79 - Remove The Slotted Diaphragm Stop Pin

    Figure 81 – Lift and remove the plastic gear collar Figure 84 – Carefully lift and remove the diaphragm rotor Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 23 of 45...

  • Page 24: Clean Components Of Field Diaphragm Assembly (Old Style)

    Note that the leaves in some Figure 87 – Thoroughly clean the diaphragm stator Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 24 of 45...

  • Page 25: Figure 90 - Features Of The Field Diaphragm Leaves

    Figure Figure 95 – Continue installing the field diaphragm leaves Figure 92 – Reinstall first diaphragm leaf into the stator Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 25 of 45...

  • Page 26: Figure 96 - First Seven Field Diaphragm Leaves Installed

    (see Figure 102). Figure 98 – Lift free end of leaves to slip the next one in Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 26 of 45...

  • Page 27: Figure 101 - Proper Orientation Of Field Diaphragm Rotor

    See Figure 106. careful not to go beyond this point. See Figure 104. Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 27 of 45...

  • Page 28: Figure 106 - Reinstall Brass Retaining Plate Onto Stator

    Figure 108 – Reinstall plastic gear collar onto the rotor Figure 111 – Ready to be installed into scope (old style) Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 28 of 45...

  • Page 29: Servicing The Field Diaphragm Assembly (New Style)

    Figure through Figure 100 and the accompanying text. Figure 114 – Lift and remove the brass retaining plate Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 29 of 45...

  • Page 30: Figure 117 - Carefully Place The Plastic Rotor Into Position

    See Figure 119. Figure 121 – Ready to be installed into scope (new style) Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 30 of 45...

  • Page 31: Reinstall The Field-Diaphragm Assembly

    128), being careful to not scratch the exposed glass disk in the process of removal. Figure 124 – Light Inlet Assembly for the BHT/BHTU Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 31 of 45...

  • Page 32: Figure 127 - Carefully Loosen The Upper Retaining Ring

    133), by placing your index finger on barrel (see Figure 130). top of the lens, inverting the barrel, and allowing the Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 32 of 45...

  • Page 33: Clean Components Of Light Inlet Assembly (Bht/Bhtu)

    138). Figure 135 – Loosen the lower retaining ring Figure 138 – Place lower diffuser in the recess in barrel Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 33 of 45...

  • Page 34: Figure 139 - Place Lower Retaining Ring Into Metal Barrel

    144). Figure 144 – Install the upper spacer tube into barrel Figure 141 – Place collector lens into metal barrel Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 34 of 45...

  • Page 35: Reinstall Light Inlet Assembly (Bht/Bhtu)

    The Light Inlet Assembly is now ready to be reinstalled Figure 150 – Insert Light Inlet Assembly into the bore into the microscope stand (see Figure 148). Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 35 of 45...

  • Page 36: Light Exit Assembly

    Figure right, in both figures. 153. Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 36 of 45...

  • Page 37: Servicing The Light Exit Assembly

    (see Figure 157). Figure 160 – Loosen the threaded retaining ring Figure 157 – Lift and remove the filter holder Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 37 of 45...

  • Page 38: Figure 161 - Unscrew And Remove Threaded Retaining Ring

    Figure 166). Figure 163 – Blow loose dust from the glass lens Figure 166 – Engage the threaded retaining ring Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 38 of 45...

  • Page 39: Clean The Components Of Light Exit Assembly

    (see Figure 169). surface mirror of the Light Exit Assembly (see Figure 172). Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 39 of 45...

  • Page 40: Figure 172 - Blow All Loose Dust From The Mirror Surface

    1) to carefully clean the wetted reflective surface of the Figure 177 – Blow away most of the rinse water Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 40 of 45...

  • Page 41: Reinstall The Light Exit Assembly Frame Onto The Base

    Figure 183 – Apply grease to brass surface in field ring Figure 180 – Re-install Light Exit frame into base cutout Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 41 of 45...

  • Page 42: Figure 184 - Place The Knurled Field Ring Into Position

    Figure 186 – Place the filter holder into recess of field ring Figure 189 – Field ring at maximum counterclockwise point Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 42 of 45...

  • Page 43: Collimating The Integral Substage Lighting

    Olympus BHS/BHSU/BHT/BHTU Microscopes A great many of the BH-2 scopes in use today have been disassembled for document in this series, before using the microscope. service at one time or another and have not been re-collimated upon completion of the repair.

  • Page 44: Original Olympus Documentation

    Olympus Research Microscopes Series BH2 (BHS) Repair Manual Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 44 of 45...

  • Page 45: Parts, Supplies, And Tools Referenced In This Document

    Table 1, and Table Vendor Telephone Toll Free email Amazon www.amazon.com Autohausaz www.autohausaz.com 1-800-240-4620 sales@autohausaz.com Table 3 – Vendor Listing Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 45 of 45...

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