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Complete Teardown, Cleaning, and Reassembly of the Olympus BH2-5RE Modular Revolving Nosepiece                

   

 

Page 9 of 18 

 

 

Revision 3 

 

Figure 13 

 Remove the pivot-adjustment screw 

Remove the Center-Pivot Bearing Ball 

Use a tweezers to remove the ¼” bearing ball from the 

center bore in the stationary base (se

Figure 14

).

 

 

Figure 14 

 Remove the center-pivot bearing ball 

Remove the Mechanical Detent Stop 

The next step is to remove the mechanical detent stop 
from the stationary base of the turret assembly.  Use a 
suitable  JIS  screwdriver  to  remove  the  two  M2X4  pan-
head  screws  securing  this  stop  to  the  stationary  base 
(see 

Figure  15

).  These screws are staked in place 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 gun before loosening them, 
but do not melt the black knurled-rubber grip ring in the 
process. 

 

Figure 15 

 Remove the screws securing the detent stop 

Remove  the  loose  mechanical  detent  stop  from  the 
stationary base (see 

Figure 16

). 

 

Figure 16 

 Remove the loose mechanical detent stop 

Remove the Knurled-Rubber Grip Ring 

Carefully  remove  the  black  knurled-rubber  grip  ring 
from  the  outer  perimeter  of  the  revolving  turret  (see 

Figure 17

), being careful not to stretch or damage it in 

the process.  This ring is held onto the turret with a few 
spots of adhesive, so proceed carefully here.

 

 

Figure 17 

 Remove the knurled-rubber grip ring 

Содержание BH2-5RE

Страница 1: ...ribute 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...

Страница 2: ...onary 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 Perimeter Balls 11 Reinstall the Perimeter Bea...

Страница 3: ...0 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 tu...

Страница 4: ...lympus BH2 5RE Modular Revolving Nosepiece Page 4 of 18 Revision 3 Figure 45 BH2 5RE ready to be put back into service 15 Figure 46 Revolving turret with severely worn mechanical detents 17 Figure 47...

Страница 5: ...on revolving modular nosepiece assembly used on the Olympus BHS BHSP BHT and BHTP microscope stands This procedure is also applicable the BH2 6RE six position modular revolving nosepiece assembly due...

Страница 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 Remove...

Страница 7: ...ve unless the proper tool is used Do not attempt to remove the slotted lock ring from the pivot adjustment screw unless you have access to such a tool since the slot in the lock ring will likely be da...

Страница 8: ...causing any damage to the fragile brass threads 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 gras...

Страница 9: ...taked in place 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 wit...

Страница 10: ...ter punch or nailset tool into one of the five 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 irrep...

Страница 11: ...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 the...

Страница 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...

Страница 13: ...with the other hand The motion of the turret should not feel gritty erratic or excessively stiff If it does loosen the slotted lock ring readjust the pivot adjustment screw and retighten the slotted...

Страница 14: ...suitable JIS screwdriver to reinstall three M2X3 countersink screws to secure the protective cover onto the stationary base see Figure 39 Figure 39 Secure protective cover using three screws Reinstall...

Страница 15: ...rubber grip ring Use dry cotton swabs lightly dampened with isopropyl alcohol to thoroughly remove any adhesive squeeze out see Figure 44 Figure 44 Remove any adhesive squeeze out Ready for Service Th...

Страница 16: ...f the stationary base If there is excess play in the center pivot ball such that the turret is not held in the exact center point the whole turret may move slightly resulting in poor objective centeri...

Страница 17: ...lored plating on the exposed surface When the hard plating in the area of the mechanical detents begin to wear away as a result of severe use without routine cleaning and re greasing of the detents th...

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

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