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2. Press the
button repeatedly.
▶ The desired volume level (low/normal/high/off) is shown alternately in the digital display.
The laser receiver is set to "Normal" volume when switched on.
6.6
Adjusting the signal tone on the laser receiver
1. When switching the laser receiver on, press and hold the
▶ The menu is then shown in the display.
2. Use the
button to assign the rapid signal tone to the upper or lower detection area.
3. Switch the laser receiver off by pressing the
▶ The settings will be saved.
6.7
PRA 83 laser receiver with holder
1. Fit the laser receiver into the rubber sleeve of the PRA 83 at an angle from above.
2. Then press the laser receiver all the way into the rubber sleeve until the sleeve surrounds the laser
receiver completely.
3. Fit the rubber sleeve onto the magnetic grip piece.
4. Press the
button.
5. Unscrew the clamping knob on the grip piece slightly.
6. Mount the PRA 83 laser receiver on a telescopic staff or leveling staff and secure it by tightening the
clamping knob.
▶ The laser receiver is ready for taking measurements.
7
Care and maintenance
7.1
Care and maintenance
WARNING
Risk of injury with battery inserted !
▶ Always remove the battery before carrying out care and maintenance tasks!
Care and maintenance of the tool
•
Carefully remove any dirt that may be adhering to the tool.
•
Use only a slightly damp cloth to clean the casing. Do not use cleaning agents containing silicone as
these may attack the plastic parts.
Care of the lithiumion batteries
•
Keep the battery free from oil and grease.
•
Use only a slightly damp cloth to clean the casing. Do not use cleaning agents containing silicone as
these may attack the plastic parts.
•
Avoid ingress of moisture.
Maintenance
•
Check all visible parts and controls for signs of damage at regular intervals and make sure that they all
function correctly.
•
Do not operate the battery-powered tool if signs of damage are found or if parts malfunction. Have the
tool repaired by Hilti Service immediately.
•
After cleaning and maintenance, fit all guards or protective devices and check that they function correctly.
To help ensure safe and reliable operation, use only genuine Hilti spare parts and consumables. Spare
parts, consumables and accessories approved by Hilti for use with the product can be found at your
local Hilti Center or online at: www.hilti.com
Cleaning the laser exit window
▶ Blow any dust off the laser exit window.
*2131236*
button.
10
2131236
button for two seconds.
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