Adjusting The Level Accuracy - Leica Rugby 840 User Manual

7.2
Description
Entering adjust-
ment mode step-by-
step
Adjusting the X-axis
step-by-step
Rugby 840, Accuracy Adjustment
Step Description
8. Rotate the laser 180° and allow it to self-level.
9. Mark the opposite side of the second axis.

The Rugby is within its accuracy specification if the four marks are within
± 1.5 mm (± 1/16") from the centre.

Adjusting the Level Accuracy

In Adjustment Mode the X-axis LED indicates changes to the X-axis.
004827_001
The Y-axis LED indicates changes to the Y-axis.
004828_001
Step Description
1. Turn off the power.
2. Press and hold both the Left and Right Arrow buttons.
3. Press the Power button. The active axis is the X-axis.
The following sequence of LED behaviour occurs:
• The X-axis and the Y-axis LEDs flash alternately three times.
• The X-axis LED flashes three times, then flashes slowly until level. When the Rugby
is level, the X-axis LED is on, but does not flash.
• The Y-axis LED is off.
Step Description
1. Press the Left and Right Arrow buttons to increment the laser beam up and
down. Each increment is indicated by a flash of the X-axis LED and a beep
from the audio indicator.
2. Continue to press the Left and Right Arrow buttons and monitor the spot
until the Rugby is within its specified range.

Five steps are equal to 10 arc seconds of change, or approximately
1.5 mm at 30 m (1/16" at 100').
3. Press the Automatic/Manual Mode button to switch to the Y-axis.
The following sequence of LED behaviour occurs:
• The X-axis and the Y-axis LEDs flash alternately three times.
• The Y-axis LED flashes three times, then flashes slowly until level. When the Rugby
is level, the Y-axis LED is on, but does not flash.
• The X-axis LED is off.
X
Y
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