Operating Modes; Starting Operation; Working Advice - Bosch Professional GHO 40-82 C Original Instructions Manual

OBJ_BUCH-633-003.book Page 20 Wednesday, November 4, 2009 2:03 PM
20 | English
Choice of Chip Ejector Side
With the selector lever 9, the chip ejector 2 can
be switched to right or left. Always press the se-
lector lever 9 until it engages in the end posi-
tion. The selected ejection direction is indicated
by an arrow symbol on the selector lever 9.
Operation

Operating Modes

Adjusting the Planing Depth
With the adjustment knob 1, the planing depth
can be adjusted variably from 0–4.0 mm using
the planing depth scale 4
(scale graduation = 0.1 mm).
Park Rest (see figure G)
The park rest 28 allows the machine to be set
down directly after operation, without danger of
damaging the working surface or the planer
blade. While planing, the park rest 28 is tilted
upwards thus enabling full contact of the rear
part of the planer base plate 10.

Starting Operation

Observe correct mains voltage! The voltage
of the power source must agree with the
voltage specified on the nameplate of the
machine. Power tools marked with 230 V
can also be operated with 220 V.
Switching On and Off
To start the machine, first push the lock-off but-
ton for the On/Off switch 5 and then press the
On/Off switch 6 and keep it pressed.
To switch off the machine, release the On/Off
switch 6.
Note: For safety reasons, the On/Off switch 6
cannot be locked; it must remain pressed during
the entire operation.
Constant Electronic Control
Constant electronic control holds the speed
constant at no-load and under load, and ensures
uniform working performance.
1 609 929 T24 | (4.11.09)
Soft Starting
The electronic soft-starting feature limits the
torque when switching on and increases the
working life of the motor and drive belt.
Temperature Dependent Overload Protection
In case of overload, the speed is reduced. Allow
the machine to cool down by running it at maxi-
mum no-load speed for approx. 30 seconds.

Working Advice

Planing (see figure G)
Set the required planing depth and place the
front part of the planer base plate 10 against the
workpiece.
Apply the machine to the workpiece only
when switched on. Otherwise there is dan-
ger of kickback when the cutting tool jams in
the workpiece.
Switch the machine on and guide the machine
with even feed over the surface to be planed.
To achieve high-grade surfaces, work only with
low feed and apply pressure on the centre of the
planer base plate.
When machining hard materials (e.g. hard-
wood) as well as when utilising the maximum
planer width, set only low planing depths and
reduce planer feed, as required.
Excessive feed reduces the surface quality and
can lead to rapid clogging of the chip ejector.
Only sharp blades achieve good cutting capacity
and give the machine longer life.
The integrated park rest 28 also allows for con-
tinued planing at any given location on the work-
piece after an interruption:
– With the park rest folded down, place the
machine on the location of the workpiece
where the planing is to be continued.
– Switch on the machine.
– Apply the supporting pressure onto the front
part of the planer base plate and slowly push
the machine forward ( ). This tilts the park
rest upward ( ) so that the rear part of the
planer base plate faces on the workpiece
again.
Bosch Power Tools