7
6.2. Telescope balancing
For smooth motion of the telescope and reliable operation of the slow motion
knob it is important to balance its movable parts on the axes of the equatorial
mounting.
For this purpose one should set the telescope tube in the horizontal position
of the declination axis. Then it is necessary to remove a cover of clock drive
(fig. 9) and screw up each of three screws 2. Holding slightly the declination
axis by handle see to it whether it remains in the indifferent equilibrium. If the
tube is not in balance, move a counterweight (fig. 5) along the declination
axis until it will be in balance. After that one screws in the screws 2 of polar
axis that telescope tube moves by slightly pressinghand. When mounting the
various devices on the telescope, for example,acamera, it is required to balance
the telescope additionally.
6.3. Precautionary measures
The rate of the fuse link mounted in the supply unit must be in compliance
with the rate denoted under the fuse link holder.
Mount the fuse link only after complete disconnection of the supply unit
from the mains.
Connect the bundled conductors to the watch drive and supply unit when
supply unit is disconnected from the mains.
