Focusing Block; Replacing The Fine Adjustment Knob - Olympus BX51 Instructions Manual

3-2 Focusing Block

³ ² @
Fig. 11
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Fig. 12
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Fig. 13
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Replacing the Fine Adjustment Knob

}The fine adjustment knob is designed detachable to prevent interference
with hand during manipulation of the fine adjustment knob or X-/Y-axis
knobs.
Usually attach the knob on the opposite side to the X- and Y-axis knobs.
1. Using the Allen screwdriver, loosen the clamping screw @ and remove
the fine adjustment knob ².
2. Remove the seal from the fine adjustment knob screw hole on the other
side and attach the knob by reversing the removal procedure.
3. Attach a provided seal on the screw hole of the removed fine adjustment
knob ³.
}The fine adjustment knob can be operated with your fingertip or finger
surface at the same time as manipulating the X- or Y-axis knob.
Adjusting the Coarse Adjustment
2
Knob Tension
# Adjust the coarse adjustment knob tension using the tension ad-
justment ring @.
The coarse adjustment knob tension is preadjusted for easy use. How-
ever, if desired, you can change the tension using the tension adjust-
ment ring @. Turning the ring in the direction of the arrow increases
tension, and vice versa.
The tension is too low if the stage drops by itself of focus is quickly lost
after adjustment with the fine adjustment knob. In this case, turn the ring
in the direction of the arrow to increase tension.
3
Pre-focusing Lever
}The pre-focusing lever ensures that the objective does not come in con-
tact with the specimen and simplifies focusing.
After focusing on the specimen with the coarse adjustment knob, turn
this lever @ in the direction of the arrow and lock; the upper limit on
coarse adjustment movement is set at the locked position.
After changing a specimen, refocusing is easily accomplished by rotat-
ing the coarse adjustment knob to reach the pre-focused position, then
making fine adjustments with the fine adjustment knob.
}Stage movement with the fine adjustment knob is not locked.
# If you want to lower the stage to the lower limit, release the lock in
advance.
BX51/BX52
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(Fig. 12)
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