GCM 8 SJL - Scie BOSCH - Free user manual and instructions

USER MANUAL GCM 8 SJL BOSCH

General Power Tool Safety Warnings

WARNING Read all safety warnings, instruc-

tions, illustrations and specifica-

tions provided with this power tool. Failure to follow all in-

structions listed below may result in electric shock, fire and/

Save all warnings and instructions for future reference.

The term "power tool" in the warnings refers to your mains-

operated (corded) power tool or battery-operated (cord-

Work area safety u Keep work area clean and well lit. Cluttered or dark areas invite accidents. u Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or

dust. Power tools create sparks which may ignite the dust

or fumes. u Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.

Electrical safety u Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with

earthed (grounded) power tools. Unmodified plugs and

matching outlets will reduce risk of electric shock. u Avoid body contact with earthed or grounded sur- faces, such as pipes, radiators, ranges and refrigerat-

ors. There is an increased risk of electric shock if your

body is earthed or grounded.

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1 609 92A 4D3 | (30.08.2018) Bosch Power Tools

u Do not expose power tools to rain or wet conditions.

Water entering a power tool will increase the risk of elec-

u Do not abuse the cord. Never use the cord for carry-

ing, pulling or unplugging the power tool. Keep cord

away from heat, oil, sharp edges or moving parts.

Damaged or entangled cords increase the risk of electric

u When operating a power tool outdoors, use an exten-

sion cord suitable for outdoor use. Use of a cord suit-

able for outdoor use reduces the risk of electric shock.

u If operating a power tool in a damp location is un-

avoidable, use a residual current device (RCD) protec-

ted supply. Use of an RCD reduces the risk of electric

u Stay alert, watch what you are doing and use common

sense when operating a power tool. Do not use a

power tool while you are tired or under the influence

of drugs, alcohol or medication. A moment of inatten-

tion while operating power tools may result in serious per-

u Use personal protective equipment. Always wear eye

protection. Protective equipment such as a dust mask,

non-skid safety shoes, hard hat or hearing protection

used for appropriate conditions will reduce personal in-

u Prevent unintentional starting. Ensure the switch is in

the off-position before connecting to power source

and/or battery pack, picking up or carrying the tool.

Carrying power tools with your finger on the switch or en-

ergising power tools that have the switch on invites acci-

u Remove any adjusting key or wrench before turning

the power tool on. A wrench or a key left attached to a

rotating part of the power tool may result in personal in-

u Do not overreach. Keep proper footing and balance at

all times. This enables better control of the power tool in

unexpected situations.

u Dress properly. Do not wear loose clothing or jew-

ellery. Keep your hair and clothing away from moving

parts. Loose clothes, jewellery or long hair can be caught

u If devices are provided for the connection of dust ex-

traction and collection facilities, ensure these are con-

nected and properly used. Use of dust collection can re-

duce dust-related hazards.

u Do not let familiarity gained from frequent use of tools

allow you to become complacent and ignore tool

safety principles. A careless action can cause severe in-

jury within a fraction of a second.

Power tool use and care

u Do not force the power tool. Use the correct power

tool for your application. The correct power tool will do

the job better and safer at the rate for which it was de-

u Do not use the power tool if the switch does not turn it

on and off. Any power tool that cannot be controlled

with the switch is dangerous and must be repaired.

u Disconnect the plug from the power source and/or re-

move the battery pack, if detachable, from the power

tool before making any adjustments, changing ac-

cessories, or storing power tools. Such preventive

safety measures reduce the risk of starting the power tool

u Store idle power tools out of the reach of children and

do not allow persons unfamiliar with the power tool or

these instructions to operate the power tool. Power

tools are dangerous in the hands of untrained users.

u Maintain power tools and accessories. Check for mis-

alignment or binding of moving parts, breakage of

parts and any other condition that may affect the

power tool’s operation. If damaged, have the power

tool repaired before use. Many accidents are caused by

poorly maintained power tools.

u Keep cutting tools sharp and clean. Properly main-

tained cutting tools with sharp cutting edges are less

likely to bind and are easier to control.

u Use the power tool, accessories and tool bits etc. in

accordance with these instructions, taking into ac-

count the working conditions and the work to be per-

formed. Use of the power tool for operations different

from those intended could result in a hazardous situation.

u Keep handles and grasping surfaces dry, clean and

free from oil and grease. Slippery handles and grasping

surfaces do not allow for safe handling and control of the

tool in unexpected situations.

u Have your power tool serviced by a qualified repair

person using only identical replacement parts. This

will ensure that the safety of the power tool is maintained.

Safety Warnings for Mitre Saws

u Mitre saws are intended to cut wood or wood-like

products, they cannot be used with abrasive cut-off

wheels for cutting ferrous material such as bars, rods,

studs, etc. Abrasive dust causes moving parts such as

the lower guard to jam. Sparks from abrasive cutting will

burn the lower guard, the kerf insert and other plastic

u Use clamps to support the workpiece whenever pos-

sible. If supporting the workpiece by hand, you must

always keep your hand at least 100 mm from either

side of the saw blade. Do not use this saw to cut pieces

that are too small to be securely clamped or held by

hand. If your hand is placed too close to the saw blade,

there is an increased risk of injury from blade contact.

u The workpiece must be stationary and clamped or

held against both the fence and the table. Do not feed

the workpiece into the blade or cut “freehand” in anyway. Unrestrained or moving workpieces could be thrown

at high speeds, causing injury.

u Push the saw through the workpiece. Do not pull the

saw through the workpiece. To make a cut, raise the

saw head and pull it out over the workpiece without

cutting, start the motor, press the saw head down and

push the saw through the workpiece. Cutting on the

pull stroke is likely to cause the saw blade to climb on top

of the workpiece and violently throw the blade assembly

towards the operator.

u Never cross your hand over the intended line of cut-

ting either in front or behind the saw blade. Supporting

the workpiece “cross handed” i.e. holding the workpiece

to the right of the saw blade with your left hand or vice

versa is very dangerous.

u Do not reach behind the fence with either hand closer

than 100 mm from either side of the saw blade, to re-

move wood scraps, or for any other reason while the

blade is spinning. The proximity of the spinning saw

blade to your hand may not be obvious and you may be

u Inspect your workpiece before cutting. If the work-

piece is bowed or warped, clamp it with the outside

bowed face toward the fence. Always make certain

that there is no gap between the workpiece, fence and

table along the line of the cut. Bent or warped work-

pieces can twist or shift and may cause binding on the

spinning saw blade while cutting. There should be no nails

or foreign objects in the workpiece.

u Do not use the saw until the table is clear of all tools,

wood scraps, etc., except for the workpiece. Small

debris or loose pieces of wood or other objects that con-

tact the revolving blade can be thrown with high speed.

u Cut only one workpiece at a time. Stacked multiple

workpieces cannot be adequately clamped or braced and

may bind on the blade or shift during cutting.

u Ensure the mitre saw is mounted or placed on a level,

firm work surface before use. A level and firm work sur-

face reduces the risk of the mitre saw becoming unstable.

u Plan your work. Every time you change the bevel or

mitre angle setting, make sure the adjustable fence is

set correctly to support the workpiece and will not in-

terfere with the blade or the guarding system. Without

turning the tool “ON” and with no workpiece on the table,

move the saw blade through a complete simulated cut to

assure there will be no interference or danger of cutting

u Provide adequate support such as table extensions,

saw horses, etc. for a workpiece that is wider or

longer than the table top. Workpieces longer or wider

than the mitre saw table can tip if not securely supported.

If the cut-off piece or workpiece tips, it can lift the lower

guard or be thrown by the spinning blade.

u Do not use another person as a substitute for a table

extension or as additional support. Unstable support

for the workpiece can cause the blade to bind or the

workpiece to shift during the cutting operation pulling you

and the helper into the spinning blade.

u The cut-off piece must not be jammed or pressed by

any means against the spinning saw blade. If confined,

i.e. using length stops, the cut-off piece could get wedged

against the blade and thrown violently.

u Always use a clamp or a fixture designed to properly

support round material such as rods or tubing. Rods

have a tendency to roll while being cut, causing the blade

to “bite” and pull the work with your hand into the blade.

u Let the blade reach full speed before contacting the

workpiece. This will reduce the risk of the workpiece be-

u If the workpiece or blade becomes jammed, turn the

mitre saw off. Wait for all moving parts to stop and

disconnect the plug from the power source and/or re-

move the battery pack. Then work to free the jammed

material. Continued sawing with a jammed workpiece

could cause loss of control or damage to the mitre saw.

u After finishing the cut, release the switch, hold the

saw head down and wait for the blade to stop before

removing the cut-off piece. Reaching with your hand

near the coasting blade is dangerous.

u Hold the handle firmly when making an incomplete cut

or when releasing the switch before the saw head is

completely in the down position. The braking action of

the saw may cause the saw head to be suddenly pulled

downward, causing a risk of injury.

u Keep your work area clean. Material mixtures are partic-

ularly hazardous. Light metal dust may catch fire or ex-

u Do not use dull, cracked, bent or damaged saw blades.

Unsharpened or improperly set saw blades produce

narrow kerf causing excessive friction, blade binding

u Do not use saw blades made from high speed steel

(HSS). Such saw blades can easily break.

u Always use saw blades with correct size and shape

(diamond versus round) of arbour holes. Saw blades

that do not match the mounting hardware of the saw will

run off-centre, causing loss of control.

u Do not replace the integrated laser with a laser of an-

other type. A laser that is not compatible with this power

tool could pose a risk to persons.

u Never remove cuttings, wood chips, etc. from the cut-

ting area while the power tool is running. Always guide

the tool arm back to the neutral position first and then

switch the power tool off.

u Do not touch the saw blade after working before it has

cooled. The saw blade becomes very hot while working.

u Never make warning signs on the machine unrecognis-

Products sold in GB only:

Your product is fitted with an BS 1363/A approved electric

plug with internal fuse (ASTA approved to BS 1362).

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1 609 92A 4D3 | (30.08.2018) Bosch Power Tools

If the plug is not suitable for your socket outlets, it should be

cut off and an appropriate plug fitted in its place by an au-

thorised customer service agent. The replacement plug

should have the same fuse rating as the original plug.

The severed plug must be disposed of to avoid a possible

shock hazard and should never be inserted into a mains

u The power tool is delivered with a warning sign (see

table: "Symbols and their meaning").

Do not direct the laser beam at persons or

animals and do not look directly into the

laser beam or at its reflection. Doing so

could lead to blindless, or could cause acci-

dents or damage to the eyes.

u If laser radiation hits your eye, you must close your

eyes and immediately turn your head away from the

u Do not use any optical instruments such as binoculars

to view the radiation source. Doing so can damage your

u Do not direct the laser beam at persons who are look-

ing through binoculars or similar instruments. Doing

so can damage their eye.

u Do not make any modifications to the laser equip-

ment. The setting options described in these operating

instructions can be used safely.

The following symbols may be important for the operation of

your power tool. Please take note of these symbols and their

meaning. Correctly interpreting the symbols will help you to

operate the power tool more effectively and safely.

Symbols and their Meaning

Do not view directly with tele-

scopic optical probe

Laser class 1M Keep hands away from the cut-

ting area while the power tool is

running. Contact with the saw

blade can lead to injuries.

Wear safety goggles.

Symbols and their Meaning

Wear hearing protection. Expos-

ure to noise can cause hearing loss.

Danger area! Keep hands, fin-

gers or arms away from this area.

The adjustable fence must be

pulled outward when sawing mitre/

The free end of workpieces must

be supported with saw table exten-

Take note of the dimensions of the

saw blade. The hole diameter must

fit the tool spindle without play. If it

is necessary to use reducers, en-

sure that the dimensions of the re-

ducer are suitable for the base

blade thickness and the saw blade

hole diameter, as well as the tool

spindle diameter. Wherever pos-

sible, use the reducers provided

The saw blade diameter must

match the information specified on

Clamping lever closed:

The adjusted bevel angle of the tool

arm is held in place.

Clamping lever open:

Bevel angles can be adjusted.

Product description and

Read all the safety and general instructions.

Failure to observe the safety and general in-

structions may result in electric shock, fire

and/or serious injury.

Please observe the illustrations at the beginning of this oper-

ating manual.Intended use

The power tool is intended as a stationary machine for mak-

ing straight cuts in wood with and against the grain. It is pos-

sible to cut mitre angles of -52° to +60° and bevel angles of

The power tool is designed with sufficient capacity for saw-

ing hardwood and softwood as well as chipboard and fibre-

When using appropriate saw blades, sawing aluminium pro-

files and plastic is also possible.

The numbering of the product features refers to the diagram

of the power tool on the graphics page.

Adjusting screw of depth stop

Lock-off switch for on/off switch

Retracting blade guard

Clamping lever of the saw table extension

Locking screw for slide device

Holes for screw clamp

Transport safety lock

On/off switch for laser (cutting line indication)

Hex socket screw for mounting of saw blade

Locking screw for the adjustable fence

Locking screw for length stop

Clamping screw for length stop

Set screw for laser position (parallelism)

Screw for bevel angle indicator

Stop screw for 0° bevel angle

Accessories shown or described are not included with the

product as standard. You can find the complete selection of

accessories in our accessories range.

Sliding mitre saw GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL Article number

Hole diameter mm 30 30 25.4 25.4 25.4

Permissible workpiece dimensions (see "Permissible workpiece dimensions", page32)

The specifications apply to a rated voltage [U] of 230 V. These specifications may vary at different voltages and in country-specific models.

Noise emission values determined according to EN

Typically, the A-weighted noise level of the power tool is:

112dB(A). Uncertainty K=3dB.

Wear hearing protection

The noise emission value given in these instructions has

been measured in accordance with a standardised measur-

ing procedure and may be used to compare power tools. It

may also be used for a preliminary estimation of noise emis-

The noise emission value given represents the main applica-

tions of the power tool. However, if the power tool is used

for other applications, with different application tools or is

poorly maintained, the noise emission value may differ. This

may significantly increase noise emissions over the total

To estimate noise emissions accurately, the times when the

tool is switched off, or when it is running but not actually be-

ing used, should also be taken into account. This may signi-

ficantly reduce noise emissions over the total working

Assembly u Avoid starting the power tool unintentionally. The mains plug must not be connected to the power supply

during assembly or when carrying out any kind of

work on the power tool.

Check to ensure that all the parts listed below have been

supplied before using the power tool for the first time:

– Sliding mitre saw with mounted saw blade

Note: Check the power tool for possible damage.

Before continuing to use the power tool, carefully check that

all protective devices or slightly damaged parts are working

perfectly and according to specifications. Check that the

moving parts are working perfectly and without jamming;

check whether any parts are damaged. All parts must be fit-

ted correctly and all the conditions necessary to ensure

smooth operation must be met.

If the protective devices or any parts become damaged, you

must have them repaired or replaced by an authorised ser-

vice centre immediately.

Stationary or flexible mounting u To ensure safe handling, the power tool must be mounted on a flat, stable work surface (e.g. work

Mounting on a work surface (see figures a1−a2)

– Use suitable screw fasteners to secure the power tool to

the work surface. Use the holes (26) to do this.

– Firmly clamp the base of the power tool to the work sur-

face with commercially available screw clamps.

Mounting on a Bosch saw stand

With the height-adjustable legs, Bosch GTA saw stands

provide firm support for the power tool on any surface. Theworkpiece supports of the saw stand are used for underlay-

ing long workpieces.

u Read all the warnings and instructions included with

the saw stand. Failure to observe the warnings and fol-

low instructions may result in electric shock, fire and/or

u Assemble the saw stand properly before mounting the

power tool. Correct assembly is important to prevent the

– Mount the power tool on the saw stand in the transport

Flexible installation (not recommended) (see figure a3)

If, in exceptional circumstances, it is not possible to mount

the power tool on a flat and stable work surface, you can im-

provise by setting it up with the tilt protector.

u Without the tilt protector, the power tool will not be

stable and can tip over especially when sawing max-

imum mitre and/or bevel angles.

– Rotate the tilt protector (23) inwards or outwards until

the power tool is positioned straight on the work surface.

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.

u Avoid dust accumulation at the workplace. Dust can

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

– Wait until the saw blade has come to a complete stop.

– Determine the cause of the blockage and eliminate it.

External dust extraction

You can also attach a dust extraction hose (35 mm dia-

meter) to the chip ejector (2) for extraction.

– Connect the dust extraction hose to the chip ejector (2).

The dust extractor must be suitable for the material being

When vacuuming dry dust that is especially detrimental to

health or carcinogenic, use a special dust extractor.

Changing the saw blade (see figures b1−b4)

u Wear protective gloves when fitting the saw blade.

There is a risk of injury when touching the saw blade.

Only use saw blades the maximum permitted speed of which

is higher than the no-load speed of the power tool.

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

Removing the Saw Blade

– Bring the power tool into the work position.

– Turn the hex socket screw (44) with the hex key (5 mm)

(33) and at the same time press the spindle lock (43) un-

– Press and hold the spindle lock (43) and loosen the

screw (44) by turning it clockwise (left-hand thread).

– Remove the clamping flange (45).

– Swivel the retracting blade guard (11) backwards as far

– Hold the retracting blade guard in this position and re-

move the saw blade (12).

– Slowly push the retracting blade guard back down.

Fitting the Saw Blade

If required, clean all the parts to be fitted before installing

– Swivel the retracting blade guard (11) backwards. Hold

the retracting blade guard in this position.

– Place the new saw blade onto the interior clamping flange

u When fitting the saw blade, make sure that the cutting

direction of the teeth (arrow direction on the saw

blade) matches the direction of the arrow on the pro-

– Slowly push the retracting blade guard back down.

– Fit the clamping flange (45) and the hex socket screw

(44). Press the spindle lock (43) until it engages and

tighten the screw by turning it anticlockwise.

u Pull the plug out of the socket before carrying out any

work on the power tool.

Transport safety lock (see figure A)

The transport safety lock (36) makes it easier to handle the

power tool when transporting it to various working locations.

Unlocking the power tool (work position)

– Press the tool arm down slightly by the handle (9) to re-

lease the transport safety lock (36).

– Pull the transport safety lock (36) all the way out.

– Slowly guide the tool arm upwards.

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Locking the power tool (transport position)

– Loosen the locking screw (32) if it is tightened. Pull the

tool arm fully forwards and retighten the locking screw.

– Screw the adjusting screw (4) all the way upwards.

– To lock the saw table (16) in place, tighten the locking

– Slowly guide the tool arm downwards using the handle

– Guide the tool arm downwards until you can press the

transport safety lock (36) all the way in.

Preparing for operation

Extending the saw table (see figure B)

The free end of long workpieces must have something

placed underneath it or be supported.

The saw table can be extended left and right using the saw

table extensions (13).

– Pull the clamping lever (17) upwards.

– Pull out the saw table extension (13) to the required

– To lock the saw table extension, push the clamping lever

When sawing mitre/bevel angles, you have to pull the left-

hand or right-hand adjustable fence (15) outwards depend-

ing on the cutting direction, or remove it completely.

Bevel angle Mitre angle

– Loosen the locking screw (47).

– Pull the left-hand adjustable fence (15) all the way out.

– Loosen the locking screw (47).

– Pull the left-hand adjustable fence (15) all the way out.

– Lift the adjustable fence upwards and out of the way.

– Remove the locking screw (47).

– Loosen the locking screw (47).

– Pull the right-hand adjustable fence (15) all the way out.

– Loosen the locking screw (47).

– Pull the right-hand adjustable fence (15) all the way out.

– Lift the adjustable fence upwards and out of the way.

– Remove the locking screw (47).

Clamping the workpiece (see figure E)

To ensure maximum safety while working, the workpiece

must always be firmly clamped.

Do not saw workpieces that are too small to clamp firmly.

– Press the workpiece firmly against the fence (14).

– Insert the supplied screw clamp (28) into one of the holes

(34) intended for this purpose.

– Adjust the threaded rod (48) of the screw clamp to the

– Tighten the threaded rod (48) to fix the workpiece in

Adjusting mitre angles

To ensure precise cuts, the basic settings of the power tool

must be checked and adjusted as necessary after intensive

use (see "Checking and adjusting the basic settings",

Setting standard mitre angles (see figure F)

For quick and precise setting of commonly used mitre

angles, detents (25) are provided on the saw table:

45°; 31.6°; 22.5°; 15° 15°; 22.5°; 31.6°; 45°; 60°

– Loosen the locking knob (21) if it is tightened.

– Pull the lever (22) and rotate the saw table (16) left or

right to the required detent.

– Release the lever again. The lever must be felt to engage

– Retighten the locking knob (21).

The mitre angle can be set between 52° (left side) and 60°

– Loosen the locking knob (21) if it is tightened.

– Pull the lever (22) and at the same time press the locking

clamp (20) until this clicks into the slot provided for it.

This means the saw table can now move freely.

– Turn the saw table (16) left or right by the locking knob

until the angle indicator (24) shows the required mitre

For mitre angles over 45°:Pull the saw table extension (13) all the way out (see " Ex-

tending the saw table (see figure B)", page30).

– Retighten the locking knob (21).

– To loosen the lever (22) again (for setting standard mitre

angles), pull the lever upwards.

The locking clamp (20) springs back into its original posi-

tion and the lever (22) can click back into the detents

Adjusting bevel angles

To ensure precise cuts, the basic settings of the power tool

must be checked and adjusted as necessary after intensive

use (see "Checking and adjusting the basic settings",

Setting standard bevel angles (see figure H)

For quick and precise setting of frequently used bevel

angles, stops have been provided for the angles 0°, 45°,

– Loosen the clamping lever (39).

– Adjust the stops (29) or (42) as follows:

Turn the stop all the way to the front

Turn the stop to the centre

Turn the stop to the back

– Swivel the tool arm by the handle (9) into the required

– Retighten the clamping lever (39).

The bevel angle can be set between -2° and +47°.

– Loosen the clamping lever (39).

– Turn the stop (29) all the way to the back and pull the

stop (42) all the way to the front.

The full swivel range is now available.

– Swivel the tool arm left or right by the handle (9) until the

angle indicator (41) shows the required bevel angle.

– Hold the tool arm in this position and retighten the clamp-

u Pay attention to the mains voltage. The voltage of the

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.

u Products that are only sold in AUS and NZ: Use a resid-

ual current device (RCD) with a nominal residual current

Switching on (see figure I)

– To start the power tool, first slide the lock-off switch (7)

to the middle and then press and hold the on/off switch

Note: For safety reasons, the on/off switch (8) cannot be

locked; it must remain pressed during the entire operation.

– To switch off, release the on/off switch (8).

Starting current limitation

The electronic starting current limitation feature restricts the

power of the power tool when it is switched on and enables

operation using a 16 A fuse.

Note: If the power tool runs at full speed immediately after

being switched on, this means that the starting current limit-

ation has failed. The power tool must be sent to the after-

sales service immediately. For addresses, see (see "After-

sales service and advice on using products", page34).

General sawing instructions

u Always tighten the locking knob (21) and the clamp-

ing lever (39) firmly before sawing. Otherwise the saw

blade can become wedged in the workpiece.

u For all cuts, it must first be ensured that the saw blade

at no time can come in contact with the fence, screw

clamps or other machine parts. Remove any mounted

auxiliary stops or adjust them accordingly.

Protect the saw blade against impact and shock. Do not sub-

ject the saw blade to lateral pressure.

Do not saw warped/bent workpieces. The workpiece must

always have a straight edge to face against the fence.

The free end of long and heavy workpieces must have some-

thing placed underneath it or be supported.

Make sure that the retracting blade guard operates properly

and that it can move freely. The retracting blade guard must

open when the tool arm is guided downward. When the tool

arm is guided upward, the retracting blade guard must close

again over the saw blade and lock in the uppermost position

Marking the cutting line (see figure J)

A laser beam shows you the cutting line of the saw blade.

This allows for exact positioning of the workpiece for sawing,

without having to open the retracting blade guard.

– To activate this, turn on the laser beam using the switch

– Align your mark on the workpiece with the right-hand

edge of the laser line.

Note: Before sawing, check if the cutting line is still indic-

ated correctly (see "Adjusting the laser", page33). The

laser beam can be misplaced due to vibrations from intens-

ive use, for example.

Position of the operator (see figure K)

u Do not stand in line with the saw blade in front of the

power tool. Always stand to the side of the saw blade.

This protects your body against possible kickback.

– Keep hands, fingers and arms away from the rotating saw

– Do not reach one hand across the other when in front of

Permissible workpiece dimensions

Maximum workpiece dimensions:

45° (left) 45° 45 x 225

45° (right) 45° 45 x 225

Minimum workpiece dimensions (= all workpieces that can

be secured left or right of the saw blade using the supplied

screw clamps (28)): 100 x 40 mm (length x width)

Max. cutting depth (0°/0°): 70 mm

Replacing the insert plates (see figure L)

The red insert plates (19) can become worn after prolonged

use of the power tool.

Replace defective insert plates.

– Bring the power tool into the work position.

– Loosen the screws (50) with a hex key (4 mm) and re-

move the old insert plates.

– Insert the new right-hand insert plate.

– Screw the insert plate as far as possible to the right with

the screws (50) so that the saw blade does not come into

contact with the insert plate over the entire length of the

possible slide motion.

– Repeat the work steps in the same manner for the left-

u Always tighten the locking knob (21) and the clamp-

ing lever (39) firmly before sawing. Otherwise the saw

blade can become wedged in the workpiece.

Sawing without slide movement (cutting off) (see figure

– For cuts without slide movement (small workpieces),

loosen the locking screw (32) if it is tightened. Push the

tool arm all the way towards the fence (14) and retighten

the locking screw (32).

– Set the required mitre and/or bevel angle as necessary.

– Firmly clamp the workpiece as appropriate for its dimen-

– Switch the power tool on.

– Slowly guide the tool arm downwards using the handle

– Saw through the workpiece applying uniform feed.

– Switch off the power tool and wait until the saw blade has

come to a complete stop.

– Slowly guide the tool arm upwards.

Sawing with slide movement

– For cuts made using the slide device (1) (wide work-

pieces), loosen the locking screw (32) if it is tightened.

– Set the required mitre and/or bevel angle as necessary.

– Firmly clamp the workpiece as appropriate for its dimen-

– Pull the tool arm away from the fence (14) until the saw

blade is in front of the workpiece.

– Switch the power tool on.

– Slowly guide the tool arm downwards using the handle

– Now push the tool arm towards the fence (14) and saw

through the workpiece with uniform feed.

– Switch off the power tool and wait until the saw blade has

come to a complete stop.

– Slowly guide the tool arm upwards.

Sawing workpieces of the same length (see figure N)

The length stop (35) (accessory) can be used for easily saw-

ing workpieces to the same length.

The length stop can be mounted on either side of the saw

table extension (13).

– Loosen the locking screw (51) and move the length stop

(35) over the clamping screw (52).

– Retighten the locking screw (51).

– Set the saw table extension (13) to the required length

(see " Extending the saw table (see figure B)", page30).

Adjusting the depth stop (sawing the groove) (see figure

The depth stop needs to be adjusted if you wish to saw a

– Swivel the depth stop (31) outwards.

– Swivel the tool arm by the handle (9) into the required

– Turn the adjusting screw (4) until the end of the screw

touches the depth stop (31).

– Slowly guide the tool arm upwards.

When sawing curved or round workpieces, these must be es-

pecially secured against slipping. At the cutting line, there

should be no gap between the workpiece, fence and saw

If necessary, you will need to manufacture special fixtures.

Checking and adjusting the basic settings

u Pull the plug out of the socket before carrying out any

work on the power tool.

To ensure precise cuts, the basic settings of the power tool

must be checked and adjusted as necessary after intensive

Experience and suitable special tools are required for this.

A Bosch after-sales service point will handle this work

quickly and reliably.Adjusting the laser

Note: To test the laser function, the power tool must be con-

nected to the power supply.

u While adjusting the laser (e.g. when moving the tool

arm), never activate the on/off switch. Accidental

starting of the power tool can lead to injuries.

– Bring the power tool into the work position.

– Turn the saw table (16) to the 0° detent (25). The lever

(22) must be felt to engage in the detent.

Checking (see figure P1)

– Draw a straight cutting line on the workpiece.

– Slowly guide the tool arm downwards using the handle

– Align the workpiece in such a manner that the teeth of the

saw blade are in alignment with the cutting line.

– Hold the workpiece in this position and slowly guide the

– Clamp the workpiece.

– Turn on the laser beam using the switch (38).

The laser beam must be flush with the cutting line on the

workpiece along its entire length, even if the tool arm is

Setting (see figure P2)

– Turn the set screw (53) with a suitable screwdriver until

the laser beam is parallel to the entire length of the cut-

ting line on the workpiece.

One rotation anticlockwise moves the laser beam from left to

right; one rotation clockwise moves the laser beam from

Setting the standard 0° bevel angle

– Bring the power tool into the work position.

– Turn the saw table (16) to the 0° detent (25). The lever

(22) must be felt to engage in the detent.

Checking (see figure Q1)

– Set an angle gauge to 90° and place it on the saw table

The leg of the angle gauge must be flush with the saw blade

(12) along its entire length.

Setting (see figure Q2)

– Loosen the clamping lever (39).

– Slide the stop (42) all the way back.

– Loosen the lock nut of the stop screw (55) using a con-

ventional ring spanner or open-ended spanner (10mm).

– Turn the stop screw as far in or out as needed until the leg

of the angle gauge is flush with the saw blade along its en-

– Retighten the clamping lever (39).

– Then retighten the lock nut of the stop screw (55).

If the angle indicator (41) is not aligned with the 0° mark on

the scale (40) following adjustment, loosen the screw (54)

using a conventional cross-headed screwdriver and align the

angle indicator along the 0° mark.

Setting the standard 45° bevel angle

– Bring the power tool into the work position.

– Turn the saw table (16) to the 0° detent (25). The lever

(22) must be felt to engage in the detent.

– Turn the stop (29) all the way to the front.

– Loosen the clamping lever (39).

– Swivel the tool arm by the handle (9) to the left until the

stop screw rests on the stop (29).

Checking (see figure R1)

– Set an angle gauge to 45° and place it on the saw table

The leg of the angle gauge must be flush with the saw blade

(12) along its entire length.

Setting (see figure R2)

– Loosen the lock nut of the stop screw (56) using a con-

ventional ring spanner or open-ended spanner (10mm).

– Turn the stop screw as far in or out as needed until the leg

of the angle gauge is flush with the saw blade along its en-

– Retighten the clamping lever (39).

– Then retighten the lock nut of the stop screw (56).

If the angle indicator (41) is not aligned with the 45° mark on

the scale (40) following adjustment, first check the 0° set-

ting for the bevel angle and the angle indicators once more.

Then repeat the adjustment of the 45° bevel angle.

Aligning the scale for mitre angles

– Bring the power tool into the work position.

– Turn the saw table (16) to the 0° detent (25). The lever

(22) must be felt to engage in the detent.

Checking (see figure S1)

– Set an angle gauge to 90° and position it between the

fence (14) and the saw blade (12) on the saw table (16).

The leg of the angle gauge must be flush with the saw blade

(12) along its entire length.

Setting (see figure S2)

– Loosen all four set screws (58) with a cross-headed

screwdriver and turn the saw table (16) together with the

scale (18) until the leg of the angle gauge is flush with the

saw blade along its entire length.

– Retighten the screws again.

If the angle indicator (24) is not aligned with the 0° mark on

the scale (18) following adjustment, loosen the screw (57)

using a cross-headed screwdriver and align the angle indic-

ator along the 0° mark.

Transport (see figure T)

Before transporting the power tool, the following steps must

– Loosen the locking screw (32) if it is tightened. Pull the

tool arm fully forwards and retighten the locking screw.

– Make sure that the depth stop (31) is pressed all the way

in and that the adjusting screw (4) fits through the recess

without touching the depth stop when moving the tool

– Bring the power tool into the transport position.

– Remove all accessories that cannot be securely fitted to

If possible, transport unused saw blades in an enclosed

– Wind up the mains cable and tie it together with the hook-

and-loop strap (59).

– Carry the power tool by the transport handle (3) or hold it

by the recessed handles (27) on the sides of the saw

u Only use the transport devices to transport the power

tool and never the protective devices.

Maintenance and servicing

Maintenance and cleaning

u Pull the plug out of the socket before carrying out any

work on the power tool.

u To ensure safe and efficient operation, always keep

the power tool and the ventilation slots clean.

In order to avoid safety hazards, if the power supply cord

needs to be replaced, this must be done by Bosch or by a

customer service centre that is authorised to repair Bosch

The retracting blade guard must always be able to move

freely and retract automatically. It is therefore important to

keep the area around the retracting blade guard clean at all

Always remove dust and chips after working by blowing out

with compressed air or using a brush.

Clean the guide roller (6) regularly.

To clean the laser unit, turn the laser cover (60) outwards

and remove the dust with a paintbrush (see figure U).

Saw blades for wood and fibreboard, panels and strips

216 x 30 mm saw blade, 48 teeth 2 608 640 641

Saw blades for plastic and non-ferrous metals

216 x 30 mm saw blade, 80 teeth 2 608 640 447

216 x 25.4 mm saw blade, 80 teeth 2 608 642 993

Saw blades for all types of laminate flooring

216 x 30 mm saw blade, 60 teeth 2 608 642 133

216 x 25.4 mm saw blade, 60 teeth 2 608 642 995

After-sales service and advice on using products

Our after-sales service responds to your questions concern-

ing maintenance and repair of your product as well as spare

parts. You can find explosion drawings and information on

spare parts at: www.bosch-pt.com

The Bosch product use advice team will be happy to help you

with any questions about our products and their accessor-

In all correspondence and spare parts orders, please always

include the 10‑digit article number given on the nameplate

Robert Bosch Ltd. (B.S.C.)

UB 9 5HJ At www.bosch-pt.co.uk you can order spare parts or ar-

range the collection of a product in need of servicing or re-

Australia, New Zealand and Pacific Islands

Robert Bosch Australia Pty. Ltd.

Customer Contact Center

Republic of South Africa

Hotline: (011) 6519600

35 Roper Street, New Centre

E-mail: bsctools@icon.co.za

KZN – BSC Service Centre

Unit E, Almar Centre

E-mail: bsc.dur@za.bosch.com

Western Cape – BSC Service Centre

Democracy Way, Prosperity Park

The power tool, accessories and packaging should be re-

cycled in an environmentally friendly manner.

Do not dispose of power tools along with

Only for EU countries:

According to the European Directive 2012/19/EU on Waste

Electrical and Electronic Equipment and its implementation

into national law, power tools that are no longer usable must

be collected separately and disposed of in an environment-

ally friendly manner.

Pied anti-basculement

Transport (voir figure T)

GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL Largura de corte

Bosch Service Center

Bosch Service Center

Boringer for montering

GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL

GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL

GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL Numer katalogowy

Robert Bosch Sp. z o.o.

GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL

LASER RADIATION DO NOT EXPOSE USERS OF TELESCOPIC OPTICS CLASS 1M LASER PRODUCT Rază laser

GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL Număr de

GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL Diametrul

GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL

GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL

Robert Bosch SRL Service scule electrice

www.bosch-pt.com/bg/bg/

GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL

GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL

GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL

GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL

GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL

GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL

GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL GCM 8 SJL Nomor seri

Palma Tower 10th Floor

GCM 8 SJLGCM 8 SJLGCM 8 SJLGCM 8 SJLGCM 8 SJL

GCM 8 SJLGCM 8 SJLGCM 8 SJLGCM 8 SJLGCM 8 SJL

GCM 8 SJLGCM 8 SJLGCM 8 SJLGCM 8 SJLGCM 8 SJL Procedure

EU Declaration of Conformity

We declare under our sole responsibility that the stated products comply

with all applicable provisions of the directives and regulations listed below

and are in conformity with the following standards.

Technical file at: *

Executive Vice President

Engineering and Manufacturing

Head of Product Certification