Dust/Chip Extraction - Bosch 3 601 M23 630 Original Instructions Manual

36 | English
Mounting to a Bosch Saw Stand
(GTA 2500 W, GTA 3700, GTA 3800) (see figure b2)
With the height-adjustable legs, Bosch GTA saw stands pro-
vide firm support for the power tool on any surface. The work-
piece supports of the saw stand are used for underlaying long
workpieces.
 Read all safety warnings and instructions included with
the worktable. Failure to observe safety warnings and in-
structions can lead to electrical shock, fire and/or cause
serious injuries.
 Assemble the worktable properly before mounting the
power tool. Perfect assembly is important in order to pre-
vent the risk of collapsing.
– Mount the power tool in transport position on the saw
stand.

Dust/Chip Extraction

Dust from materials such as lead-containing coatings, some
wood types, minerals and metal can be harmful to one's
health. Touching or breathing-in the dust can cause allergic
reactions and/or lead to respiratory infections of the user or
bystanders.
Certain dust, such as oak or beech dust, is considered carci-
nogenic, especially in connection with wood-treatment addi-
tives (chromate, wood preservative). Materials containing as-
bestos may only be worked by specialists.
– Always use dust extraction.
– Provide for good ventilation of the working place.
– It is recommended to wear a P2 filter-class respirator.
Observe the relevant regulations in your country for the mate-
rials to be worked.
The dust/chip extraction can be blocked by dust, chips or
workpiece fragments.
– Switch the machine off and pull the mains plug from the
socket outlet.
– Wait until the saw blade has come to a complete stop.
– Determine the cause of the blockage and correct it.
 Prevent dust accumulation at the workplace. Dust can
easily ignite.
Integrated Dust Extraction (see figure c)
For basic dust collection, use the dust bag 1 provided.
 Check and clean the dust bag each time after using.
 When sawing aluminium, remove the dust bag to avoid
the risk of fire.
– Insert and turn dust bag 1 onto the extraction adapter 2 in
such a manner that the pin of the extraction adapter engag-
es in the recess of the dust bag.
During sawing, the dust bag and the extraction adapter may
never come in contact with moving tool components.
Always empty the dust bag in good time.
External Dust Extraction
For dust extraction, you can also connect the extraction
adapter 2 to a vacuum hose (Ø 35 mm).
– Insert the vacuum hose into the extraction adapter 2.
The vacuum cleaner must be suitable for the material being
worked.
1 609 92A 285 | (11.11.15)
When vacuuming dry dust that is especially detrimental to
health or carcinogenic, use a special vacuum cleaner.
Cleaning the Extraction Adapter
To ensure optimum extraction, the extraction adapter 2 must
be cleaned regularly.
– Pull off extraction adapter 2 from chip ejector 41 with a
twisting motion.
– Remove workpiece fragments and chippings.
– Mount the extraction adapter onto the chip ejector again
with a twisting motion until it engages over the holding ring
of the chip ejector.
Changing the Saw Blade (see figures d1–d4)
 Before any work on the machine itself, pull the mains
plug.
 When mounting the saw blade, wear protective gloves.
Danger of injury when touching the saw blade.
Use only saw blades whose maximum permitted speed is
higher than the no-load speed of the power tool.
Use only saw blades that correspond with the characteristic
data given in these operation instructions and that are tested
and marked in accordance with EN 847-1.
Use only saw blades recommended by the tool manufacturer,
and suitable for sawing the materials to be cut. This prevents
overheating of the saw teeth during sawing.
Removing the Saw Blade
– Bring the power tool into the working position.
– Unscrew locking screw 42 by hand until the linkage 43 can
hang freely.
– Loosen fastening screw 44 (approx. 2 turns) with the hex
key (4 mm) 20.
Do not completely unscrew the screw.
– Loosen the fastening screw 45 (approx. 6 turns) with the
hex key (4 mm) 20.
Do not completely unscrew the screw.
– Pull cover plate 46 off of fastening screw 45 toward the
front and bottom.
– Press locking lever 5 and swing back the retracting blade
guard 8.
Hold the retracting blade guard in this position.
– Hang linkage 43 over fastening screw 45 via a bolt hole.
This holds the retracting blade guard in the open position.
– Turn the hex socket screw 48 with the hex key (6 mm) 20
and at the same time press the spindle lock 47 until it en-
gages.
– Hold the spindle lock 47 pressed and unscrew the hex
socket screw 48 in clockwise direction (left-hand thread!).
– Remove the clamping flange 49.
– Remove the saw blade 40.
Mounting the Saw Blade
If required, clean all parts to be mounted prior to assembly.
– Place the new saw blade onto the interior clamping flange
50.
 When mounting the saw blade, pay attention that the
cutting direction of the teeth (arrow direction on the
saw blade) corresponds with the direction of the arrow
on the blade guard!
Bosch Power Tools