MAINTENANCE
Your Berner power tool has been designed to operate over a long period
of time with a minimum of maintenance. Continuous satisfactory operation
depends upon proper tool care and regular cleaning.
Field Calibration Check (fi g. H–J)
The field calibration check must be performed securely and accurately to
make a correct diagnosis. Whenever an error is registered, have the tool
serviced by a qualified repair agent.
WARNING: The conditions of the area are indicative of the
results presented. If the practice differs from these conditions,
the measurements have to be adjusted accordingly.
SCAN CHECK (FIG. H)
• Place the tool in an area between two vertical surfaces that are at least
9 m apart. Mount the tool exactly midways to the wall.
• Position the tool at an angle of 45° to the left.
• Switch on the horizontal laser beam.
• Mark the centre of the laser beam exactly midways on the opposite wall.
• Switch off the tool and rotate it 90° clockwise.
• Switch on the horizontal laser beam.
• Mark the centre of the laser beam exactly midways on the opposite
wall.
• Switch off the tool.
• Measure the difference between the markings.
• If the difference between the markings is 3 mm or less, the tool is
properly calibrated.
• If the difference between the markings is more than 3 mm, the tool must
be serviced.
LEVEL CHECK (FIG. I1, I2)
• Place the tool in an area with a wall of at least 9 m length. Mount the
tool to one end of the wall.
E N G L I S H
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