CompleteTeardown,Cleaning,andReassemblyoftheOlympusBH‐2SlidingFocusBlock Revision2 Page4of23
TableofFigures
Figure1–HeadofatypicalJISscrew.....................................................................................................................................6
Figure2–Protectthetopofthearmfromdust....................................................................................................................7
Figure3–Removethelamphousefromthebase..................................................................................................................8
Figure4–BottomviewoftheBHT/BHTUelectricalbase......................................................................................................8
Figure5–
Lightpre‐setcontrolandpre‐setswitch ................................................................................................................8
Figure6–Removescrewssecuringthearmtothebase.......................................................................................................8
Figure7–Separatethearmfromthebase............................................................................................................................8
Figure8–Removescrewssecuringthetrimcover................................................................................................................9
Figure9–Removetheloose
trimcoverfromthearm...........................................................................................................9
Figure10–Loosenscrewssecuringguideblockinplace.......................................................................................................9
Figure11–Loosenscrewstensioningslidemechanism........................................................................................................9
Figure12–Withdrawfocusblockassemblyfromthearm....................................................................................................9
Figure13–Removescrewssecuringtheguideblock
..........................................................................................................10
Figure14–Removetheguideblockfromthefocusblock...................................................................................................10
Figure15–Thecomponentsofthefocusblockassembly...................................................................................................10
Figure16–Removethebrassshimsfromthefocusblock..................................................................................................10
Figure17–Removescrewsandwedgenuts........................................................................................................................10
Figure
18–Removefourguiderailsfromthearmcasting...................................................................................................10
Figure19–Cleangreasefromtheguiderails......................................................................................................................11
Figure20–Cleangreasefromthesidegroovesinthearm.................................................................................................11
Figure21–Removescrewssecuringbottomdustcover.....................................................................................................11
Figure22
–Removethebottomdustcover.........................................................................................................................11
Figure23–Removetwoguiderailsfromthefocusblock....................................................................................................11
Figure24–Cleangreasefromsidegrooveinfocusblock....................................................................................................12
Figure25–Removeguiderailsfromtheguideblock...........................................................................................................12
Figure26–Cleangrease
fromsidegrooveinguideblock...................................................................................................12
Figure27–Soaktherollersinsolventtoremovegrease.....................................................................................................12
Figure28–Reinstallthelongguiderailsintothearm.........................................................................................................12
Figure29–Scrubgreasefromguiderailsandarm..............................................................................................................12
Figure30–Guide
railsinstalledintothearmcasting...........................................................................................................13
Figure31–Reinstallshortguiderailsintothefocusblock..................................................................................................13
Figure32–Scrubgreasefromguiderailsandfocusblock...................................................................................................13
Figure33–Guiderailsinstalledintothefocusblock...........................................................................................................13
Figure34–Reinstallshort
guiderailsintotheguideblock..................................................................................................13
Figure35–Scrubgreasefromguiderailsandguideblock..................................................................................................13
Figure36–Guiderailsinstalledintotheguideblock...........................................................................................................14
Figure37–Reinstallthebrassshimsontothefocusblock..................................................................................................14
Figure38–Clean
exposedgreasefromthefocusblock......................................................................................................14
Figure39–Reinstallguideblockontothefocusblock.........................................................................................................14
Figure40–Looselyengagescrewswiththewedgenuts.....................................................................................................14
Figure41–Placerollersandrodontobottomguiderails...................................................................................................15
Figure42–Placefocusblock
assemblyontorollers............................................................................................................15
Figure43–Withdrawtheguideblockabouthalfway..........................................................................................................15
Figure44–Placefourrollersontheupperguiderails.........................................................................................................15
Figure45–Pushcylindricalrollersintoguide‐railchannel..................................................................................................15
Figure46–Pushthespacerrodintoguide‐
railchannel......................................................................................................16