Complete Teardown, Cleaning/Lubrication, and Reassembly of the Olympus BH2-CH Substage Assembly
Revision 1 Page 3 of 26
Table of Figures
Figure 1 – Head of a typical JIS screw ..................................................................................................................................... 6
Figure 2 – Adjust condenser height until screw is visible ....................................................................................................... 7
Figure 3 – Unscrew and remove the slotted stop screw ........................................................................................................ 7
Figure 4 – Remove the condenser slide assembly .................................................................................................................. 8
Figure 5 – Remove the condenser-lock thumbscrew ............................................................................................................. 8
Figure 6 – Remove the centering thumbscrews ..................................................................................................................... 8
Figure 7 – The condenser-slide assembly (bottom view) ....................................................................................................... 8
Figure 8 – Remove screws securing the slip plates ................................................................................................................. 8
Figure 9 – Remove the three slip plates ................................................................................................................................. 8
Figure 10 – Look for shim washers under the slip plates ........................................................................................................ 9
Figure 11 – Remove any brass shim washers ......................................................................................................................... 9
Figure 12 – Depress the centering plunger ............................................................................................................................. 9
Figure 13 – Separate centering yoke from support yoke ....................................................................................................... 9
Figure 14 – The support yoke on the condenser slide ............................................................................................................ 9
Figure 15 – The centering yoke ............................................................................................................................................... 9
Figure 16 – Remove screws and washers securing rack ....................................................................................................... 10
Figure 17 – Remove the condenser-height rack ................................................................................................................... 10
Figure 18 – Brass shim for the condenser-height rack ......................................................................................................... 10
Figure 19 – Remove brass shim for condenser-height rack .................................................................................................. 10
Figure 20 – Loosen set screw while holding the stop pin ..................................................................................................... 10
Figure 21 – Remove the loose stop pin from the bore ......................................................................................................... 10
Figure 22 – Remove the stop-pin spring from the slide ....................................................................................................... 11
Figure 23 – Back out the stop-pin set screw from the slide ................................................................................................. 11
Figure 24 – Test the fit of the stop pin in the bore ............................................................................................................... 11
Figure 25 – Clean any debris or burring from the bore ........................................................................................................ 11
Figure 26 – Reinstall the stop-pin spring into the bore ........................................................................................................ 11
Figure 27 – Reinstall the stop pin into the bore ................................................................................................................... 11
Figure 28 – Tighten set screw to lock the stop pin ............................................................................................................... 12
Figure 29 – Test centering plunger for freedom of motion .................................................................................................. 12
Figure 30 – Loosen the plunger-retaining screw .................................................................................................................. 12
Figure 31 – Remove the plunger-retaining screw ................................................................................................................. 12
Figure 32 – Remove the plunger-extension spring ............................................................................................................... 12
Figure 33 – Press centering plunger out the back of bore .................................................................................................... 12
Figure 34 – Remove centering plunger from the bore ......................................................................................................... 13
Figure 35 – Clean grease from bore and dovetail slide ........................................................................................................ 13
Figure 36 – Apply grease to the centering-plunger bore ...................................................................................................... 13
Figure 37 – Reinstall plunger and c-clip into bore ................................................................................................................ 13
Figure 38 – Reinstall plunger-extension spring into bore ..................................................................................................... 13
Figure 39 – Reinstall the plunger-retaining screw ................................................................................................................ 13
Figure 40 – Tighten the plunger-retaining screw .................................................................................................................. 14
Figure 41 – Head of retaining screw must be recessed ........................................................................................................ 14
Figure 42 – Reinstall brass shim for condenser-height rack ................................................................................................. 14
Figure 43 – Reinstall screws for the condenser-height rack ................................................................................................. 14
Figure 44 – Tighten screws for the condenser-height rack................................................................................................... 14
Figure 45 – Parts for the condenser-centering mechanism.................................................................................................. 14
Figure 46 – Lightly grease the underside of centering yoke ................................................................................................. 15
Figure 47 – Reinstall centering yoke into support yoke ....................................................................................................... 15
Figure 48 – Reinstall any brass shim washers ....................................................................................................................... 15
Figure 49 – Apply grease to the three slip bosses ................................................................................................................ 15
Figure 50 – Reinstall slip plates onto the slip bosses ............................................................................................................ 15
Figure 51 – Reinstall screws to secure the slip plates ........................................................................................................... 15
