17. CHECK AND ADJUSTMENT
17-8
Note 1): First, loosen the capstan adjustment screw on the side to which the vertical cross-hair line
must be moved. Then tighten the adjustment screw on the opposite side by an equal amount
which will leave the tension of the adjustment screws unchanged.
Revolve in the counterclockwise direction to loosen and in the clockwise direction to tighten,
but revolve as little as possible.
Note 2): Perform following adjustment after complete above adjustment . Chapter 17.3.6 "Adjustment
of Vertical Angle 0 Datum", Chapter 17.2 "Checking the Optical Axis", Chapter 17.5
"Inspection and Adjustment of Optic Axis for Auto-Tracking".
17.3.5 Checking / Adjusting the Optical Plummet Telescope
Adjustment is required to make the line of sight of the optical plummet telescope coincide with the
vertical axis ( as otherwise the vertical axis will not be in the true vertical when the instrument is
optically plumbed).
Check
Coincide the center mark and the point.
(See Chapter 2 "PREPARATION OF MEASUREMENT".)
Rotate the instrument 180
or 200g around the vertical axis and check the center mark.
If the point is properly centered in the center mark, adjustment is not required. Otherwise,
adjust in the following manner.
Adjustment
Unscrew the adjustment section cover of the optical plummet telescope eyepiece, by revolving
it in the counterclockwise direction, and take it off. This will expose four capstan adjustment
screws which should be adjusted with the accessory adjusting pin to shift the center mark to
the point. However, correct only one-half of the displacement in this manner.
Use the leveling screws and coincide the point and center mark.
Rotate the instrument 180
‹
or 200g around the vertical axis once more and check the center
mark. If it is coincided to the point, then further adjustment is not required. Otherwise, repeat
the adjustment.
Note:
First, loosen the capstan adjustment screw on the side to which the center mark must be
moved. Then tighten the adjustment screw on the opposite side by an equal amount which
will leave the tension of the adjustment screws unchanged.
Revolve in the counterclockwise direction to loosen and in the clockwise direction to tighten,
but revolve as little as possible.
Eyepiece
1/2 of displacement
Plummet telescope
Capstan adjustment screws
Capstan
adjustment
screws
Summary of Contents for AP-L1A
Page 1: ...INSTRUCTION MANUAL AUTOMATIC TRACKING TOTAL STATION AP L1A AP L1AN...
Page 14: ...1 NOMENCLATURE AND FUNCTIONS 1 3 2 The details of label will be differed by the market...
Page 82: ...11 SETTING ATMOSPHERIC CORRECTION 11 4 Temprerature C Temprerature F...
Page 83: ...11 SETTING ATMOSPHERIC CORRECTION 11 5 Temprerature F...
