Introduction ............................................................................................................................................................................ 7
Scope of this Document ...................................................................................................................................................... 7
A Few Notes Before Starting ................................................................................................................................................... 7
Cleaning Grease from Parts ............................................................................................................................................ 7
Tools Needed .......................................................................................................................................................................... 7
Electric Heat Gun ................................................................................................................................................................ 7
A Few Words about JIS Screws ........................................................................................................................................... 7
Supplies Needed ..................................................................................................................................................................... 8
Recommended Lubricant Types .......................................................................................................................................... 8
Recommended Solvents ..................................................................................................................................................... 8
Remove the Lamphouse ..................................................................................................................................................... 9
Remove the Rear Cover ...................................................................................................................................................... 9
Remove the Focus Gearbox .............................................................................................................................................. 10
Remove the Focus Rack .................................................................................................................................................... 10
Remove the Fine-Focus Knob Caps ................................................................................................................................... 11
Remove the First Fine-Focus Knob.................................................................................................................................... 12
Withdraw the Coarse-Focus Shaft .................................................................................................................................... 19
Remove the Setscrews ...................................................................................................................................................... 20
Service the Sliding Focus Block ......................................................................................................................................... 20
Disassemble the Pinion Assembly ..................................................................................................................................... 21
Reinstall the Coarse-Focus Shaft ....................................................................................................................................... 25
Complete Teardown, Cleaning, and Reassembly of the Olympus BH-2 Coaxial Focus Mechanism
Table of Contents
Revision 4
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