MachineryHouse HAFCO METALMASTER GHD-55G, Operation Manual, Page: 83 / 134

Operation
Version 1.0.2 dated 2018-09-12 Page 82 Translation of the original instructions
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OPTIMUM
M A S C H I N E N - G E R M A N Y
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4.6.1 Manual spindle sleeve feed
CAUTION!
Danger by bumping due to the drill levers at the end of the manual or automatic spindle
sleeve feed The return spring biases and discharges the stored energy.
Move the sleeve downward by means of the spindle sleeve lever. The sleeve is returned to its
initial position by means of the spring force.
4.6.2 Automatic spindle sleeve feed
INFORMATION
The spindle sleeve feed only works if the direction of rotation is correct.
The feed is activated by pressing the push buttons in the spindle sleeve lever. The feed is per-
formed by an electromagnetic coupling. The feed is switched off by means of the drill depth
indicator, or by pressing the push button again in the spindle sleeve lever or by pressing the
optional foot switch.

Select the speed of the spindle sleeve feed actuating the selector rotary switch.

0.1 mm/rev

0.15 mm/rev

0.2 mm/rev
INFORMATION
The higher the pre-set speed the more rapid is the feed speed on the sleeve. Adjust the correct
speed depending on the used material and on the drill diameter.

Adjust the drill depth stop .

Press the push button in the spindle sleeve lever. The electromagnetic spindle sleeve feed
is activated.

Press the push button in the spindle sleeve lever again. The electromagnetic spindle sleeve
feed will deactivated.

When the preset drilling depth is reached, the drilling feed is deactivated. The drilling sleeve
returns to the top position by spring force.
4.7 Disassembly, assembly of drill chucks and drill bits
Taper mandrels can be drifted out with the integrated drill drift or with an ordinary drill drift.
4.7.1 Use of the drill chuck
CAUTION!
Make sure that the clamped tool is firmly and correctly fitted.
4.7.2 Disassembly with integrated drill drift
ATTENTION!
The tool and/or the drill chuck will fall down. Hold the tool or the drill chuck while drifting
it out.
INFORMATION
The integrated drill drift is equipped with a limit switch. The spindle drive only runs when
the integrated drill drift is in the correct position.