Bosch Professional GHO 185-LI Instructions Manual page 13

Use of conversion kits
Changing from HSS to HM/TC
The HM/TC adapter enables a planer fitted with HSS planer
blades to be changed over to HM/TC planer blades.
– Unscrew the three fastening screws (14) using the Torx
key (13) and remove the clamping jaw (15).
– Push the retaining clip (19) together with the planer
blade (18) out of the blade head (16) and/or the guide
groove (17).
– Remove the screws (20).
– Place the retaining clip (19) and the adapter (37) in the
setting gauge (22). The retaining clip (19) must slot into
the groove on the setting gauge (see figure S).
– Push the HM/TC planer blade (23) into the adapter (37)
from the side. The ridge on the adapter (37) must slot
into the groove on the HM/TC planer blade (see figure S).
– Tighten the screws (20).
– Insert the retaining clip (19) together with the adapter
(37) and the planer blade (18) into the blade head (16)
and/or the guide groove (17).
– Put the clamping jaw (15) on and insert the fastening
screws (14), which do not yet need to be screwed in
tightly.
– The planer blade must be fitted and aligned with the
centre of the planer base plate (11). Then tighten the
three fastening screws (14) using the Torx key (13), fol-
lowing the tightening sequence (①②③) specified on
the clamping jaw (15).
Changing from HM/TC to HSS
Planers fitted with HM/TC planer blades can be changed
over to HSS planer blades.
– Unscrew the three fastening screws (14) using the Torx
key (13) and remove the clamping jaw (15).
– Push the retaining clip (19) together with the planer
blade (18) and/or the HM/TC adapter (37) out of the
blade head (16).
– Remove the screws (20).
– Fit the assembled HSS planer blade (see "Fitting the
Planer Blades (see figures E–F)", page 12) and align it
with the centre of the planer base plate (11).
– Put the clamping jaw (15) on and tighten the three
fastening screws (14) using the Torx key (13), following
the tightening sequence (①②③) specified on the
clamping jaw (15).
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.
Bosch Power Tools
– 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 (3) 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 N)
An extraction hose (dia. 35 mm) (28) (accessory) can be
connected to the chip ejector on either side.
Connect the dust extraction hose (28) 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 N)
A chip/dust bag (accessory) (29) can be used for smaller
jobs. Insert the dust bag nozzle of the chip/dust bag firmly
into the chip ejector (3). Empty the chip/dust bag (29) at
regular intervals to maintain optimum dust collection.
Selectable chip ejector
Using the changeover lever (10), the chip ejector can be (3)
adjusted to the right or left. Push the changeover lever (10)
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 (10).
Operation
Start-up
Setting the cutting depth
Using the knob (2), the cutting depth can be continuously
adjusted between 0–2.6 mm with the aid of the cutting
depth scale (1) (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 (4),
then press and hold the on/off switch (5).
To switch off the power tool, release the on/off switch (5).
Note: For safety reasons, the on/off switch (5) cannot be
locked; it must remain pressed during the entire operation.
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1 609 92A 8GP | (01.06.2023)