Manual Spindle Feed; Automatic Spindle Feed; Handwheel For The Fine Adjustment Of The Spindle - Optimum B50 GSM Operating Manual

Handling
4.4.1

Manual spindle feed

Use the spindle lever to move the spindle down. The spindle is returned to its original setting by
a spring.
4.4.2

Automatic spindle feed

The forward feed is activated by the push buttons in the spindle sleeve lever. The forward feed
is performed electromagnetically. The switching-off of the forward feed is actuated by the drill
depth stop or by reactivating the push buttons at the spindle lever.
Fig.4-6: Spindle feed speed selector
Choose the feed speed of the spindle sleeve using the selector:
- 0,05 mm/ .002" per revolution
- 0,10 mm/ .004" per revolution
- 0,15 mm/ .006" per revolution
- 0,20 mm/ .008" per revolution
- 0,25 mm/ .010 per revolution
- 0,30 mm/ .012" per revolution
INFORMATION
The higher the preset number of revolutions, the greater the feed speed ofthe spindle. Make
sure you set the right speed for the material used and the diameter of the bit.
Adjust the drill depth stop
Push the spindle lever upwards. This will activate the spindle feed.
 Once the preset drill depth is reached, the depth stop pushes the feed lever down mechanically, stopping
automatic feed of the bit. The drilling spindle is returned to the upper position by the spring.
4.4.3

Handwheel for the fine adjustment of the spindle

Turn the selector switch to the position "0".
Turn the handwheel in order to turn the spindle.
Set the required position with the handwheel.
Fig.4-7: Spindle fine feed
22 / 07 / 2014
Selector
Push-button in spindle

„Drill depth stop" on page 28.
Handwheel
spindle fine feed
Selector switch
Version 1.0.3
OPTIMUM
M A S C H I N E N - G E R M A N Y
lever
B50 GSM Geared drill Page 29