Dust/Chip Extraction; Switching On/Off; Practical Advice - Bosch GHO 40-82 C Professional Manual Original

If necessary, clean the knife seat in the clamping element
(14) and the planer blade (16).
When fitting the planer blade, ensure that it is securely
seated in the mounting guide of the clamping element (14)
and is aligned flush with the side edge of the planer base
plate (10) at the rear. Then tighten the two fastening screws
(15) with the hex key (18).
Note: Check that the fastening screws (15) are firmly
tightened before starting operation. Turn the blade head
(13) by hand and ensure that the planer blade is not brush-
ing against anything.

Dust/Chip Extraction

The dust from materials such as lead paint, some types of
wood, minerals and metal can be harmful to human health.
Touching or breathing in this dust can trigger allergic reac-
tions and/or cause respiratory illnesses in the user or in
people in the near vicinity.
Certain dusts, such as oak or beech dust, are classified as
carcinogenic, especially in conjunction with wood treatment
additives (chromate, wood preservative). Materials contain-
ing asbestos may only be machined by specialists.
– Use a dust extraction system that is suitable for the ma-
terial wherever possible.
– Provide good ventilation at the workplace.
– It is advisable to wear a P2 filter class breathing mask.
The regulations on the material being machined that apply in
the country of use must be observed.
Avoid dust accumulation at the workplace. Dust can
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easily ignite.
Clean the chip ejector (2) regularly. Clean a clogged chip
ejector using a suitable tool, e.g. a piece of wood, com-
pressed air, etc.
Do not allow the chip ejector to come into contact with
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your hands. You may be injured by rotating parts.
Always use an external dust extraction device or chip/dust
bag to guarantee optimum suction.
External dust extraction (see figure C)
An extraction hose (dia. 35 mm) (19) (accessory) can be
connected to the chip ejector on either side.
Connect the dust extraction hose (19) to a dust extractor
(accessory). You will find an overview of how to connect to
various dust extractors at the end of these operating instruc-
tions.
The dust extractor must be suitable for the material being
worked.
When extracting dry dust that is especially detrimental to
health or carcinogenic, use a special dust extractor.
Self-generated dust extraction (see figure C)
A chip/dust bag (accessory) (20) can be used for smaller
jobs. Insert the dust bag nozzle of the chip/dust bag firmly
into the chip ejector (2). Empty the chip/dust bag (20) at
regular intervals to maintain optimum dust collection.
Bosch Power Tools
Selectable chip ejector
Using the changeover lever (9), the chip ejector can be (2)
adjusted to the right or left. Push the changeover lever (9) all
the way towards the end position until it clicks into place.
The selected chip ejector direction is indicated by an arrow
symbol on the changeover lever (9).
Operation
Start-up
Pay attention to the mains voltage. The voltage of the
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power source must match the voltage specified on the
rating plate of the power tool. Power tools marked
with 230 V can also be operated with 220 V.
Products that are only sold in AUS and NZ: Use a resid-
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ual current device (RCD) with a nominal residual current
of 30 mA or less.
Setting the cutting depth
Using the knob (1), the cutting depth can be continuously
adjusted between 0–4 mm with the aid of the cutting depth
scale (4) (scale division = 0.1 mm).

Switching on/off

Make sure that you are able to press the On/Off switch
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without releasing the handle.
To start the power tool, first press the lock-off switch (5),
then press and hold the on/off switch (6).
To switch off the power tool, 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
The Constant Electronic keeps the speed at no load and un-
der load virtually consistent, guaranteeing uniform perform-
ance.
Soft start
The electronic soft start limits the torque when the power
tool is switched on and increases the service life of the mo-
tor and the drive belt.
Temperature-dependent Overload Protection
In the event of an overload, the speed is reduced. Allow the
power tool to cool down unloaded at its maximum no-load
speed for approx. 30 seconds.

Practical advice

Pull the plug out of the socket before carrying out any
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work on the power tool.
Parking Rest (see figure G)
The parking rest (28) makes it possible to put down the
power tool directly after working, without any danger of
damaging the workpiece or the planer blades. During the
work process, the parking rest (28) is raised and the rear
section of the planer base plate (10) is uncovered.
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1 609 92A 818 | (28.06.2022)