4.11.1 Fitting The Drill Chuck; Cooling - Optimum OPTidrill DQ 20V Betriebsanleitung

4.11.1 Fitting the drill chuck

Only a clean and smooth surface allows a correct and tight fitting connection.
The drill chuck is secured in the drill spindle against turning over by means of a form-locking
connection (driver). A frictionally engaged connection keeps and centres the drill chuck or the
drill in the drill spindle.
4.12

Cooling

The friction generated during rotation can cause the edge of the tool to become very hot.
The tool should be cooled during the drilling process. Cooling the tool with a suitable 
cooling lubricant ensures better working results and a longer edge life of the tools. This is best
realised by a separate cooling equipment. If there is no cooling equipment included in the deliv-
ery volume, you can cool by means of a spray gun or a washing bottle.
CAUTION!
Danger of injury due to brushes getting caught or pulled in. Use a spray gun or a
washing bottle for cooling.
INFORMATION
Use a water-soluble and non-pollutant emulsion as a cooling agent.This can be acquired from
authorised distributors.
Make sure that the cooling agent is being collected.
Respect the environment when disposing of lubricants and coolants.
Follow the manufacturer's disposal instructions.
EN DQ20V Operation
60 Translation of original instruction Version 1.0.1 - 2021-05-11