Version 1.0 dated 2019-01-08Page 50 Translation of the original instructions
B13 basic | B14 basic | B16 basicGB
B13-B14-B16_basic_GB.fm
OPTIMUM
MASCHINEN - GERMANY
®
INFORMATION
The threaded pin is only provided for correct positioning of a horizontal level of the drilling table.
4.4 Speed variation
WARNING!
Only disassemble the cover hood if the bench drill is disconnected from the electrical
supply.
Close and screw down the protective cover after each change of speed.
Disconnect the machine from the electrical supply.
Remove the screw on the protective cover.
Open the protective cover of the belt drive.
Loosen the clamping screw of the V-belt tension and slide the motor in direction drill chuck.
Img.4-2: Speed variation
ATTENTION!
Watch for the proper tension of V-belts.
Too heavy or too low tension of the belt can cause damage. The belts are correctly
tensioned, when it can be by pressing with the fingers for about 1 cm.
4.4.1 Speed tables
Speed table B13 basic / B14 basic
Speed table B16 basic
V-belt
Clamping screw
V-belt tension
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