Switching On And Off; Service And Maintenance - Mafell ZB 400 E Manual De Instrucciones

4.1

Switching on and off

Temporary operation
• Switching on: Press switch 1 (Fig. 3).
• Switching off: Release switch.
Continuous operation
• Switching on: Press switch 1 first and then press
locking button 2. The motor runs without keeping
the switch pressed.
• Switching off: Press switch 1 until locking button 2
trips, then release the switch.
4.2 Adjusting drilling speed
This drilling machine has a gear box and an electronic
speed control. The drilling speed can be adjusted
continuously between 340 and 1450 rpm. The built-in
electronics ensure a jerk-free acceleration when
switching on and control the speed according to the
value set.
The drilling speed required should be selected by
referring to the diagramme 3 (Fig. 3) (see Fig. 4)
and is set by means of the gear shift lever 4 (Fig. 3)
and the setting wheel 5.
Gear should be shifted only when the
motor has been switched off and the
machine is running out or has stopped
(see Fig. 5)! When the machine has
been switched on the direction of rota-
tion of the drill bit should be checked. If
necessary, the direction of rotation can
be changed by means of the reversing
switch 6 (Fig. 3). Before actuating the
reversing switch the motor should be
switched off (the reversing switch is
mechanically blocked).
4.3 Operating instructions
• Bolt 10 (Fig. 6) should be pushed down as far as
possible.
• Place the machine in its correct position so that
the drill bit will be exactly above the centre mark-
ing of the hole to be drilled. Turn the machine until
the bolt touches the timber so that it can act as a
stop for torsional force. When the machine has
been switched on it should be pushed down with
light pressure until the threaded tip of the drill bit
has «taken» in the work. Now, the drill will
advance automatically. If the drill bit should get
stuck, the direction of rotation should be reversed.
Before the reverse switch is actuated, the
machine must be switched off.
To drill a blind pocket hole it is possible to set the
drilling depth by means of the depth stop ring 11
(Fig. 3). To drill holes at an angle loosen clamping
lever 12, tilt the machine until the angle desired is
indicated on scale 13, tighten clamping lever again.
When using short drill bits the maximum return stroke
can be adapted by means of the depth stop ring 14.
To drill holes in the middle of a beam both bolts in
the base plate of the drill mount should be pushed
down and the machine should be turned until these
bolts touch the beam on either side - max. width of a
beam 22.5 cm (8 7/8 in.) (see Fig. 6 and Fig. 7).
For special work it may be necessary to use the stop
plate which is available as optional accessory
(Ref. No. 039 156).
4.4 Optional tools
The drilling machine can be used with ring-groove
drilling tools and head countersinks. Special leaflets
on request!
5

Service and maintenance

Pull out the mains plug before start-
ing on any maintenance work!
MAFELL machines are designed to be
low in maintenance. The ball bearings
used are greased for life. After a pro-
longed period of operation, users are
recommended to have the machine
checked by an authorized MAFELL cus-
tomer service shop.
5.1 Machine
The machine must be cleaned of dust deposits at
regular intervals. When doing so, clean the air vents
on the motor using a vacuum cleaner.
5.2 Tools
The drill bits used on the machine must be freed
from resin regularly, as clean tools improve the drill-
ing quality.
For cleaning only acid-free but no highly alkaline
cleaning agents may be used.
This can be done by soaking the drill bits for 24
hours in paraffin or commercially available resin
remover.
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