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10 CHECKS AND ADJUSTMENTS
10-6 Laser Plummet
Checks
q Set the instrument on the tripod, and place a piece of white paper with a
cross drawn on it right under the instrument.
w Press the [LASER] key, and move the paper so that the intersecting point of
the cross comes to the center of the Laser mark.
e Rotate the instrument around the vertical axis, and observe the center mark
position against the intersecting point of the cross at each 90° rotation.
r If the Laser mark always coincides with the intersecting point, no adjustment
is necessary.
Adjustments
When a center part where a cross intersection and the laser mark look the
brightest shifts by 0.8mm or more (at the instrument height 1.5m), it is necessary
to adjust it. A repair engineer does this adjustment. Please contact the PENTAX
dealer.
PENTAX R-300 (p65-88) 10/30/02 11:11 AM Page 71