OPTIMUM
M A S C H I N E N - G E R M A N Y
Operation
Version 1.0.3 dated July 22, 2014
Page 33
Original operating instructions
B30 VGM
US
4.6.3 Mounting the drill chuck
The drill chuck is secured
against twisting in the drill
sleeve by means of a form-
fit connection (tang).
A frictionally engaged
connection holds and
centers the drill chuck with
the taper mandrel in the
drill spindle.
Img.4-11:
Taper mandrel
Check or clean the taper seat in the drill spindle and at the taper mandrel of the tool or the
drill chuck.
Press the taper mandrel into the drill spindle.
4.7
Coolant unit
When performing rotational movements high temperatures are generated at the cutting edge
due to the occurring friction.
Cool down the tool when drilling. This way you achieve better working result and a longer
service life of the tool.
Img.4-12:
Filler hole
Img.4-13:
Shut-off valve and adjusting valve for coolant
Adjust the flow using the shut-off and dosing tap.
ATTENTION!
Failure of the pump in the event of dry running.
The pump is lubricated by the cooling agent. Do not start up the pump without cooling
agent.
Drill sleeve
Tang
Taper mandrel
Coolant filler hole
Shut-off valve and adjusting valve