Changing The Saw Blade (See Figures E1−E4) - Bosch GCM 10 GDJ Professional Manual Original

– 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.
The dust/chip extraction system can be blocked by dust,
chips or fragments of the workpiece.
– Switch the power tool off and pull the mains plug out of
the socket.
– Wait until the saw blade has come to a complete stop.
– Determine the cause of the blockage and eliminate it.
Self-generated dust extraction (see figure d)
For basic chip collection, use the dust bag (1) provided.
– Place the dust bag (1) onto the extraction adapter (35)
and turn so that the pin of the extraction adapter locks in
place in the recess of the dust bag.
During sawing, the dust bag must not come into contact with
moving tool components.
Always empty the dust bag in good time.
Check and clean the dust bag each time after using.
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When sawing aluminium, remove the dust bag to avoid
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the risk of fire.
External Dust Extraction
You can also attach a dust extraction hose ( mm diameter) to
the extraction adapter (35) for extraction.
– Connect the dust extraction hose to the extraction
adapter (35).
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.
Cleaning the dust extraction adapter
To ensure optimum extraction, the dust extraction adapter
(35) must be cleaned regularly.
– Pull the dust extraction adapter (35) off the chip ejector
(36) with a twisting motion.
– Remove workpiece fragments and chippings.
– Reattach the dust extraction adapter to the chip ejector
with a twisting motion until it engages above the chip
ejector holding ring.
Changing the saw blade (see figures e1−e4)
Pull the plug out of the socket before carrying out any
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work on the power tool.
Wear protective gloves when fitting the saw blade.
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There is a risk of injury when touching the saw blade.
Only use saw blades that have a maximum permitted speed
higher than the no-load speed of the power tool.
Bosch Power Tools
Only use saw blades that match the specifications given in
this operating manual and that have been tested and marked
in accordance with EN 847-1.
Only use saw blades that are recommended by the power
tool manufacturer and are suitable for use on the material
you want to saw. This will prevent the saw teeth overheating
when sawing.
Removing the Saw Blade
– Bring the power tool into the work position.
– Loosen the locking screw (37) with the hex key
(6 mm) (30) until the linkage (38) can hang freely.
– Loosen the fastening screw (39) (by approx. two turns)
using the hex key (4 mm) (30).
Do not unscrew the screw completely.
– Loosen the fastening screw (40) (by approx. six turns)
using the hex key (4 mm) (30).
Do not unscrew the screw completely.
– Pull the cover plate (41) forwards and downwards away
from the fastening screw (40).
– Swivel the retracting blade guard (6) to the back and hold
it in this position.
– Hang the linkage (38) over the fastening screw (40) using
a hole.
This will hold the retracting blade guard open.
– Turn the hex socket screw (43) with the hex key
(6 mm) (30) and at the same time push the spindle
lock (42) until it engages.
– Keep holding the spindle lock (42) and loosen the hex
socket screw (43) by turning it clockwise (left-hand
thread).
– Remove the clamping flange (44).
– Remove the saw blade (34).
Fitting the saw blade
When fitting the saw blade, make sure that the cutting
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direction of the teeth (arrow direction on the saw
blade) matches the direction of the arrow on the pro-
tective guard.
If required, clean all the parts you want to fit before installing
them.
– Place the new saw blade on the inner clamping
flange (45).
– Fit the clamping flange (44) and the hex socket
screw (43). Press the spindle lock (42) until it engages
and tighten the hex socket screw by turning it anticlock-
wise.
– Release the linkage (38) from the fastening screw (40)
and guide the retracting blade guard (6) back down.
– Slide the cover plate (41) back under the fastening
screw (40).
– Retighten the fastening screws (40) and (39).
– Slide the linkage (38) into its original position and
retighten the locking screw (37) using the hex key
(6 mm) (30).
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1 609 92A 5U5 | (01.10.2020)