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Complete Teardown, Cleaning, and Reassembly of the Olympus BH2-6RE Modular Revolving Nosepiece               

   

 

Page 14 of 18 

 

 

Revision 3 

 

Figure 37 

 Apply grease to the six detent notches 

Reinstall the Protective Cover  

Place the protective cover into position on the back side 
of the turret  assembly, lining  up the  three  holes in the 
protective  cover  with  the  three  tapped  holes  in  the 
stationary base (see 

Figure 38

). 

 

Figure 38 

 Place cover in position on the turret assembly 

Use  a  suitable  JIS  screwdriver  to  reinstall  three  M2X3 
countersink screws to secure the protective cover onto 
the stationary base (se

Figure 39

).   

 

Figure 39 

 Secure protective cover using three screws 

Reinstall the Dovetail Slide  

Place the dovetail slide into position on the back side of 
the  turret  assembly,  lining  up  the  four  holes  in  the 
dovetail slide with the four corresponding tapped holes 
in the stationary base (see 

Figure 40

).  Be sure to orient 

the dovetail slide such that the relief notch (see inset of 

Figure 40

is facing downwards and towards the slotted 

lock ring on the pivot-adjustment screw. 

 

Figure 40 

 Position dovetail slide onto stationary base 

Use  a  suitable  JIS  screwdriver  to  reinstall  four  M2.6X5 
pan-head  screws  to  secure  the  dovetail  slide  onto  the 
stationary base of the turret assembly (se

Figure 41

). 

 

Figure 41 

 Secure dovetail slide onto stationary base 

Reinstall the Knurled-Rubber Grip Ring  

The  final  assembly  step  for  the  turret  assembly  is  to 
reinstall  the  black  knurled-rubber  grip  ring  around  the 
outer perimeter of the revolving turret and secure it in 
place with a suitable color-matching adhesive. 
Black  E6000  is  a  good  choice  of  adhesive  here,  since  it 
will bond well with the metal of the revolving turret as 
well  as  to  the  black  knurled-rubber  grip  ring.  
Additionally,  any  of  the  inevitable  squeeze-out  that  is 
not completely removed will not be visible.  Apply two 
dabs of black adhesive (item S1 of 

Appendix 1

) onto the 

Summary of Contents for BH2-6RE

Page 1: ...tribute 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 documen...

Page 2: ...rimeter Bearing Balls 10 Remove the Stationary Base from the Turret 10 Clean Grease from the Various Components 11 Reinstall Stationary Base into Revolving Turret 11 Apply Ring of Grease for the Perim...

Page 3: ...ure 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 Li...

Page 4: ...f 18 Revision 3 Figure 43 Reinstall the knurled rubber grip ring 15 Figure 44 Remove any silicone RTV squeeze out 15 Figure 45 BH2 6RE ready to be put back into service 15 Figure 46 Revolving turret w...

Page 5: ...on revolving modular nosepiece assembly used on the Olympus BHS BHSP BHT and BHTP microscope stands This procedure is also applicable the BH2 5RE five position modular revolving nosepiece assembly due...

Page 6: ...due to solvent absorption The list of solvents generally considered safe for nylon includes acetone diethyl ether heptane mineral spirits naphthalene and turpentine Before Starting the Overhaul Remov...

Page 7: ...stment screw see Figure 8 can be difficult to remove unless the proper tool is used Do not attempt to remove the slotted lock ring and pivot adjustment screw unless you have access to such a tool sinc...

Page 8: ...ds in the revolving turret Figure 10 Insert screwdriver into bores to lock turret Loosen and Remove the Slotted Lock Ring Hold the turret assembly by grasping the knurled rubber grip ring on the outer...

Page 9: ...lace with adhesive and can be surprisingly stubborn to remove so be sure to use the proper JIS screwdriver to prevent damaging the screw heads It might also be helpful to heat the screws with a heat g...

Page 10: ...ter punch or nailset tool into one of the six detent notches in the revolving turret instead of into one of the four tooling holes in the threaded retaining ring or the revolving turret will be irrepa...

Page 11: ...er of the revolving turret see Figure 24 Do not apply too much grease here to minimize the squeeze out that will occur when the threaded retaining ring is reinstalled to hold the stationary base into...

Page 12: ...that the center pivot bore has been greased reinstall the bearing ball into the freshly greased center pivot bore The grease will hold the center pivot bearing ball in the proper position during subs...

Page 13: ...oosen the slotted lock ring readjust the pivot adjustment screw and retighten the slotted lock ring as described above until the turret motion feels acceptable Clean Off Any Visible Grease Use a suita...

Page 14: ...the stationary base see Figure 40 Be sure to orient the dovetail slide such that the relief notch see inset of Figure 40 is facing downwards and towards the slotted lock ring on the pivot adjustment s...

Page 15: ...removing the protective cover cleaning and re greasing the detent notches and then reinstalling the protective cover per the procedures detailed in this document The dovetail slide does not need to be...

Page 16: ...n properly adjusted to remove the play in the center pivot mechanism How to Contact the Author Please feel free to direct any questions or comments regarding this document or BH 2 microscopes in gener...

Page 17: ...resistant layer of dull silver colored plating on the exposed surface When the hard plating in the area of the mechanical detents begins to wear away as a result of severe use without routine cleaning...

Page 18: ...t Item Description Manufacturer Manufacturer Model Vendor Vendor Price S1 E6000 adhesive black 2 oz 32329 Amazon 8 22 S2 Plastilube Brake Grease 75 cc Plastilube ATE70015 Amazon 10 88 Plastilube Brake...

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