Olympus BH2 Series, Teardown, Cleaning And Reassembly

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Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 5 of 45
Figure 84 – Carefully lift and remove the diaphragm rotor ........................................................................................... 23
Figure 85 – Diaphragm leaves in the metal stator ......................................................................................................... 24
Figure 86 – Carefully remove the diaphragm leaves ..................................................................................................... 24
Figure 87 – Thoroughly clean the diaphragm stator ...................................................................................................... 24
Figure 88 – Thoroughly clean the diaphragm leaves ..................................................................................................... 24
Figure 89 – Thoroughly clean the field diaphragm rotor ............................................................................................... 24
Figure 90 – Features of the field diaphragm leaves ....................................................................................................... 25
Figure 91 – Mark the location of the pivot holes in stator ............................................................................................ 25
Figure 92 – Reinstall first diaphragm leaf into the stator .............................................................................................. 25
Figure 93 – First leaf installed in field diaphragm stator ............................................................................................... 25
Figure 94 – Install the second diaphragm leaf ............................................................................................................... 25
Figure 95 – Continue installing the field diaphragm leaves ........................................................................................... 25
Figure 96 – First seven field diaphragm leaves installed ............................................................................................... 26
Figure 97 – Use index finger to hold the leaves down ................................................................................................... 26
Figure 98 – Lift free end of leaves to slip the next one in .............................................................................................. 26
Figure 99 – Slip seventh leaf under the lifted leaves ..................................................................................................... 26
Figure 100 – Position leaves against the stator side wall .............................................................................................. 26
Figure 101 – Proper orientation of field diaphragm rotor ............................................................................................. 27
Figure 102 – Carefully reinstall the field diaphragm rotor ............................................................................................ 27
Figure 103 – Verify smooth operation of field diaphragm ............................................................................................ 27
Figure 104 – Close field diaphragm to a pinhole aperture ............................................................................................ 27
Figure 105 – Orientation of the screw holes in the rotor .............................................................................................. 27
Figure 106 – Reinstall brass retaining plate onto stator ................................................................................................ 28
Figure 107 – Reinstall screws to secure the retaining plate .......................................................................................... 28
Figure 108 – Reinstall plastic gear collar onto the rotor ................................................................................................ 28
Figure 109 – Secure the gear collar with two screws .................................................................................................... 28
Figure 110 – Reinstall the slotted stop pin into the rotor ............................................................................................. 28
Figure 111 – Ready to be installed into scope (old style) .............................................................................................. 28
Figure 112 – Remove screws securing brass plate to stator .......................................................................................... 29
Figure 113 – Align plastic tab with notch in brass plate ................................................................................................ 29
Figure 114 – Lift and remove the brass retaining plate ................................................................................................. 29
Figure 115 – Lift and remove the plastic rotor from stator ........................................................................................... 29
Figure 116 – Thoroughly clean the plastic rotor ............................................................................................................ 29
Figure 117 – Carefully place the plastic rotor into position ........................................................................................... 30
Figure 118 – Reinstall brass retaining plate onto stator ................................................................................................ 30
Figure 119 – Reinstall screws to secure the retaining plate .......................................................................................... 30
Figure 120 – Plastic stop tab hits tab on retaining plate ............................................................................................... 30
Figure 121 – Ready to be installed into scope (new style) ............................................................................................ 30
Figure 122 – Place field diaphragm assembly into position .......................................................................................... 31
Figure 123 – Secure field diaphragm assembly to base ................................................................................................. 31
Figure 124 – Light Inlet Assembly for the BHT/BHTU .................................................................................................... 31
Figure 125 – Remove setscrews securing barrel to base ............................................................................................... 31
Figure 126 – Remove the Light Inlet Assembly from base ............................................................................................. 31
Figure 127 – Carefully loosen the upper retaining ring ................................................................................................. 32
Figure 128 – Remove the upper retaining ring .............................................................................................................. 32
Figure 129 – Carefully lift and remove adiabatic glass disk ........................................................................................... 32
Figure 130 – Remove the upper spacer tube ................................................................................................................. 32
Figure 131 – Carefully lift and remove frosted glass disk .............................................................................................. 32
Figure 132 – Remove the lower spacer tube ................................................................................................................. 32
Figure 133 – Remove the glass collector lens ................................................................................................................ 33
Figure 134 – The lower retaining ring in the barrel ....................................................................................................... 33
Figure 135 – Loosen the lower retaining ring ................................................................................................................ 33
Figure 136 – Remove the lower retaining ring .............................................................................................................. 33