Nikon Eclipse E400 POL - Coarse and fine focus knobs

Operation of Each Part
Rotation of the coarse and fine focus knobs and
vertical movement of the stage
Rotating the fine focus knob one step moves the stage
1 um.
Rotating the fine focus knob one complete turn moves
the stage 0.1 mm.
Rotating the coarse focus knob one complete turn moves
the stage 12 mm.
The coarse/fine focus stroke (range of vertical motion)
for the stage is 2 mm up and 28 mm down from the
reference (focused) position.
Never attempt either of the following actions. These
actions will damage the microscope.
* Rotating the left and right knobs in opposite
directions at the same time.
* Continuing to rotate the coarse focus knob after the
stage has reached the limit of its motion.
Adjusting the torque of the coarse focus knob
It is possible 1 adjust the torque of the coarse focus
knob.
To increase the torque, turn the torque adjustment ring
(TORQUE) located behind the coarse focus knob in the
direction of the arrow on the microscope base (i.c. the
counter-clockwise direction). To reduce the torque. turn
the ring in the direction opposite to the arrow (i.e. the
clockwise direction).
To increase
the torque
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