Selecting The Speed Range; Drilling With The Machine - BDS Maschinen MAB 455 Originalbetriebsanleitung

Operation

Selecting the speed range

Drilling with the machine

Drilling with twist drills
50
CAUTION
► Switch over the gear stages only with the machine at stand-
still.
The machine has a gearbox with two mechanical gear stages:
Gear stage 1: Load speed 250 rpm
Gear stage 2: Load speed 450 rpm
To select the desired gear stage, set selector lever (5) to
‹
stage 1 or 2 with the machine switched off.
NOTE
► Select the speed range according to the material and drilling
diameter.
Proceed as follows when drilling with twist drills:
Push twist drills with MK taper from below into the morse
‹
taper (3) of the machine.
Push twist drills with straight shank into the drill chuck after
‹
fitting the drill chuck.
Position the machine at the working location, align it and
‹
switch on the magnetic clamp.
Select the appropriate speed and switch on the machine.
‹
NOTE
Observe the following instructions when drilling with twist drills:
► Under excessive pressure, the drill can wear out and the
machine can be overloaded.
► Pay attention to a regular chip discharge. With larger drilling
depths, break the chip.
MAB 455