Olympus BH2-5RE, Complete Teardown, Cleaning, And Reassembly

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Complete Teardown, Cleaning, and Reassembly of the Olympus BH2-5RE Modular Revolving Nosepiece Page 3 of 18
Revision 3
Sources for Replacement Parts, Tools, and Supplies Referenced in this Document ........................................................ 18
Table of Figures
Figure 1 – A typical JIS Screw .................................................................................................................................................. 5
Figure 2 – The BH2-5RE modular revolving nosepiece ........................................................................................................... 6
Figure 3 – Basic components of the BH2-5RE ......................................................................................................................... 6
Figure 4 – Remove four screws securing the dovetail slide .................................................................................................... 7
Figure 5 – Remove the loose dovetail slide ............................................................................................................................ 7
Figure 6 – Remove screws securing the cover in place .......................................................................................................... 7
Figure 7 – Remove the protective cover ................................................................................................................................. 7
Figure 8 – The turret assembly (without cover) ..................................................................................................................... 7
Figure 9 – Screwdriver modified to remove slotted lock ring ................................................................................................ 8
Figure 10 – Insert screwdriver into bores to lock turret ......................................................................................................... 8
Figure 11 – Loosen the slotted lock ring ................................................................................................................................. 8
Figure 12 – Remove the slotted lock ring ............................................................................................................................... 8
Figure 13 – Remove the pivot-adjustment screw ................................................................................................................... 9
Figure 14 – Remove the center-pivot bearing ball ................................................................................................................. 9
Figure 15 – Remove the screws securing the detent stop ...................................................................................................... 9
Figure 16 – Remove the loose mechanical detent stop .......................................................................................................... 9
Figure 17 – Remove the knurled-rubber grip ring .................................................................................................................. 9
Figure 18 – Components of the turret assembly .................................................................................................................. 10
Figure 19 – Loosen the threaded retaining ring ................................................................................................................... 10
Figure 20 – Remove the threaded retaining ring .................................................................................................................. 10
Figure 21 – Remove the perimeter bearing balls ................................................................................................................. 10
Figure 22 – Lift and remove the stationary base .................................................................................................................. 10
Figure 23 – Reinstall stationary base into revolving turret ................................................................................................... 11
Figure 24 – Apply ring of fresh grease for the bearing balls ................................................................................................. 11
Figure 25 – Place the bearing balls into the ring of grease ................................................................................................... 11
Figure 26 – Engage the threaded retaining ring ................................................................................................................... 11
Figure 27 – Tighten the threaded retaining ring ................................................................................................................... 11
Figure 28 – Remove any grease squeeze-out ....................................................................................................................... 12
Figure 29 – Apply grease to the center-pivot bore ............................................................................................................... 12
Figure 30 – Place bearing ball into the center-pivot bore .................................................................................................... 12
Figure 31 – Apply grease to the top of the bearing ball ....................................................................................................... 12
Figure 32 – Reinstall the pivot-adjustment screw ................................................................................................................ 12
Figure 33 – Reinstall the slotted lock ring ............................................................................................................................. 13
Figure 34 – Tighten the slotted lock ring .............................................................................................................................. 13
Figure 35 – Place the mechanical detent stop in position .................................................................................................... 13
Figure 36 – Secure the detent stop with two screws ........................................................................................................... 13
Figure 37 – Apply grease to the five detent notches ............................................................................................................ 14
Figure 38 – Place cover in position on the turret assembly .................................................................................................. 14
Figure 39 – Secure protective cover using three screws ...................................................................................................... 14
Figure 40 – Position dovetail slide onto stationary base ...................................................................................................... 14
Figure 41 – Secure dovetail slide onto stationary base ........................................................................................................ 14
Figure 42 – Apply black adhesive to revolving turret ........................................................................................................... 15
Figure 43 – Reinstall the knurled-rubber grip ring ................................................................................................................ 15
Figure 44 – Remove any adhesive squeeze-out .................................................................................................................... 15