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to microscope and worktable.
4.3 Replacement of bulb
4.3.1 Turn off power, and pull out plug.
4.3.2 Wait the bulb become cool.
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Please be sure that the bulb is cool, then follow by the nest operations.
4.3.3 Lay aside the microscope reliably, unscrew the knurled thumb screw of the lamp
housing cover on the underside of base.
4.3.4 Pull over the lamp housing cover.
4.3.5 Pull out the bulb should be replaced, hold a new bulb with silk cloth to avoid
fingerprint and dust affect bulb brightness and service life, and insert fully the contact
pins into the bulb socket.
4.3.6 Close the lamp housing cover, and screw the knurled thumb screw.
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After working for above 10 hours continuously, better cut off the microscope
about 30 minutes.
4.4 Replacement of fuse
4.4.1 Cut off power of microscope, and pull out the plug.
4.4.2 Unscrew fuse cap in the back of base, take out old fuse.
4.4.3 Replace a new fuse, then screw the fuse cap.