Pentax R-322N - Manual (Page 27)

3 PREPARATION FOR SURVEYING
[Target sighting by Manual focus]
Loosen the telescope clamp and horizontal clamp screws.
Point the telescope at the target using a collimator.
Tighten the above two screws.
Adjust the eyepiece.
Look through the telescope and then rotate the AF ring and stop it where the
target can be seen clearly and the target image does not move in relation to
reticle even if your eye is vertically and horizontally moved.
Stay the reticle accurately on the target using telescope and horizontal
tangent screws.
The AF ring rotation "clockwise" makes it possible to focus on closer range
and "counterclockwise" makes it possible to focus on further range.
3 PREPARATION FOR SURVEYING
3- 8 Attachment and Detachment of Tribrach
The tribrach of R-325 is detachable from the instrument if required when
replacing the instrument with a target or unit prism for example.
Detachment
First loosen the recessed screw with a screwdriver, then rotate the locking knob
until the arrow points upward, and lift the instrument up.
Attachment
Mount the instrument on the tribrach with the guide marks coinciding, and rotate
the locking knob until the arrow points downward.
The guide and guide mark must be fitted to attach the instrument
When the tribrach does not need to be attached or detached or instrument is to
be transported, tighten the recessed screw with a screwdriver to fix the locking
knob.
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