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OPTIMUM
M A S C H I N E N - G E R M A N Y
Operation
Version 2.2.2 dated 2014-03-07
Page 41
Original operating instructions
B24H | B24HV | B28H | B28HV
GB
4.7
Speed variation
WARNING!
Danger due to drill chuck or tools flying off at high speed. Make sure not to exceed the
maximum speed of the drill chuck when setting the spindle speed.
Switch off the machine by
pressing the main switch.
Open
the protective cover.
Loosen the lever of the V-
belt tensioning.
Position the V-belt respec-
tively on the required
transmission stage.
Img.4-8:
Lever for the V-belt tension B24H/ B24H
Vario
Tighten the clamping lever
again and thus tighten the
belt drive.
Close the protective cover.
Img.4-9:
Lever for the V-belt tension B28H/ B28H
Vario
4.7.1 Speed table B24H
Img.4-10: Speed table B24H
V-belt
Lever
V-belt tension
V-belt
Lever
V-belt tension
Spindle
Motor