GCM 12 GDL - Scie BOSCH - Free user manual and instructions

USER MANUAL GCM 12 GDL 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 darkareas invite accidents.u Do not operate power tools in explosive atmospheres,such as in the presence of flammable liquids, gases ordust. Power tools create sparks which may ignite the dustor fumes.u Keep children and bystanders away while operating apower tool. Distractions can cause you to lose control.Electrical safetyu Power tool plugs must match the outlet. Never modifythe plug in any way. Do not use any adapter plugs withearthed (grounded) power tools. Unmodified plugs andmatching 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 yourbody is earthed or grounded.u Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of elec-tric shock.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 shock.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 any

way. 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

Bosch Power Tools 1 609 92A 4CT | (20.07.2018)32 | English

1 609 92A 4CT | (20.07.2018) Bosch Power Tools

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).

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

socket elsewhere.u Do not make any modifications to the laser equip-

ment. The setting options described in these operating

instructions can be used safely.

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 Warning! If operating or adjustment devices other

than those specified here are used or other proced-

ures are carried out, this can lead to dangerous expos-

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

Keep hands away from the cutting

area while the power tool is running.

Contact with the saw blade can lead to

Wear safety goggles.

Wear hearing protection. Exposure

to noise can cause hearing loss.

Danger area! Keep hands, fingers

and arms away from this area.

Keep your fingers away from the

moving parts of the glide arm. There

is a risk of fingers being crushed and

Symbols and their meaning

Take note of the dimensions of the saw

blade. The hole diameter must fit the

tool spindle without play. If it is neces-

sary to use reducers, ensure that the

dimensions of the reducer 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 with

The saw blade diameter must match

the information specified on the sym-

When transporting the power tool,

hold it only at the locations indicated

(recessed handles) or by the transport

Never carry the power tool using the

handle of the glide arm.

Switching on the laser

Clamping handle open:

Bevel angles can be adjusted.

Clamping handle closed:

The set bevel angle of the glide arm is

Indicates the individual steps for ad-

justing the bevel angle.

1. Loosen the clamping handle

2. Swivel the glide arm slightly to the

Saw blade inclination to the left (45° to

Saw blade inclination to the right (0° to

Entire swivel range of the glide arm (–

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-

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

47° (to the left) to 47° (to the right).

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.

Lock-off switch for on/off switch

Retracting blade guard

Clamping handle for various bevel angles

Dust extraction adapter

Glide mechanism clamping lever

Adjusting screw of depth stop

Transport safety lock

Adjustment knob for 22.5° bevel angle

Locking screw for length stop

Rotary knob for adjusting the bevel angle range

Locking screw for the linkage of the retracting blade

Linkage of the retracting blade guard

Front fastening screw

(cover plate/retracting blade guard)

Rear fastening screw

Hex socket screw for mounting of saw blade

Clamping lever of the saw table extension

Locking screw for the adjustable fence

Set screws for damping

Holes for screw clamp

On/off switch for laser (cutting line indication)

Screws for insert plate

Clamping screw for length stop

Set screw for positioning the laser (flush levelling)

Fastening screw for laser mounting plate

Fastening screw for laser housing

Set screw for 45° basic setting (left-hand bevel

Set screw for 45° basic setting (right-hand bevel

Set screw for adjusting the clamping force of the

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 12 GDL GCM 12 GDL GCM 12 GDL Article number

Rated voltage V 230–240 110 220–240

Frequency Hz 50/60 50/60 50/60

No-load speed rpm 4000 4000 4000

Starting current limitation ● – ●

Weight according to EPTA-Procedure

Protection class / II / II / II Dimensions of suitable saw blades

Permitted Workpiece Dimensions (maximum/minimum): (see "Permissible workpiece dimensions", page40)

Noise emission values determined according to EN

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

106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.

Carefully remove all parts included in the delivery from their

Remove all packing material from the power tool and the ac-

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 (40)

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.

Extra tools required (not included in the delivery):

– Cross-headed screwdriver

– Open-ended spanner (size: 8 mm)

– Ring spanner, open-ended spanner or socket spanner

(sizes: 10 mm and 17 mm)

Fitting the locking knob (see figure a)

– Screw the locking knob (11) into the corresponding hole

above the lever (12).

u Always tighten the locking knob (11) firmly before

sawing. Otherwise the saw blade can become wedged in

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 figure b1)

– Use suitable screw fasteners to secure the power tool to

the work surface. Use the holes (8) 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

(GTA 2500 W, GTA 3700, GTA 3800) (see figure b2)

Thanks to their height-adjustable legs, Bosch GTA saw

stands provide firm support for the power tool on any sur-

face. The workpiece supports on the saw stands are used to

support 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

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 dust extraction adapter (24) for extraction.

– Insert the dust extraction hose into the dust extraction

The dust extractor must be suitable for the material being

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

(24) must be cleaned regularly.

– Pull the dust extraction adapter (24) off the chip ejector

(23) 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 c1−c4)

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

work on the power tool.

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 using 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.

– Unscrew the locking screw (42) by hand until the linkage

(43) can hang down freely.

– Loosen the fastening screw (44) (by approx. two turns)

using the hex key (4 mm) (17).

Do not unscrew the screw completely.

– Loosen the fastening screw (45) (by approx. six turns)

using the hex key (4 mm) (17).

Do not unscrew the screw completely.

– Pull the cover plate (46) forwards and downwards away

from the fastening screw (45).

– Swivel the retracting blade guard (4) to the back and hold

the retracting blade guard in this position.

– Hang the linkage (43) over the fastening screw (45) using

This will hold the retracting blade guard open.

– Turn the hex socket screw (48) with the hex key (6 mm)

(17) and at the same time press the spindle lock (47) un-

– Press and hold the spindle lock (47) and loosen the hex

socket screw (48) by turning it clockwise (left-hand

– Remove the clamping flange (49).

– Remove the saw blade (40).

Fitting the saw blade

If required, clean all the parts you want to fit before installing

– 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-

– Fit the clamping flange (49) and the hex socket screw

(48). Press the spindle lock (47) until it engages and

tighten the hex socket screw by turning it anticlockwise.

– Release the linkage (43) from the fastening screw (45)

and guide the retracting blade guard (4) back down.

– Slide the cover plate (46) back under the fastening screw

– Retighten the fastening screws (45) and (44).

– Slide the linkage (43) into its original position and

retighten the locking screw (42) by hand.

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 (31) makes it easier to handle the

power tool when transporting it to various working locations.

Unlocking the Power Tool (Work Position)

– Press the glide arm (28) down slightly by the handle (1)

to release the transport safety lock (31).

– Pull the transport safety lock (31) all the way out.

– Slowly guide the glide arm (28) upwards.

Locking the Power Tool (Transport Position)

– Slide the glide arm (28) all the way back and secure it in

this position (see "Securing the Glide Arm (see figure

– Guide the glide arm downwards until you can press the

transport safety lock (31) all the way in.

Further information: (see "Transport (see figure Z)",

Locking the Glide Arm

The glide mechanism of the glide arm (28) can be locked

with the clamping lever (25). The glide arm can be placed in

– Glide arm pushed all the way back (for cross cuts)

– Glide arm pulled all the way forward (for a compact trans-

Unlocking the Glide Arm (see figure B1)

After unlocking the glide arm (28), the whole gliding mech-

anism is ready for operation.

– Press the clamping lever (25) all the way down.

– The clamping wedge of the clamping lever releases the

two articulated parts at the bottom of the glide arm.

Securing the Glide Arm (see figure B2)

Glide arm pushed all the way back:

– Push the glide arm (28) all the way back.

– The two articulated parts at the top of the glide arm are

now upright and closed.

– Pull the clamping lever (25) upwards until the clamping

wedge is positioned between the two articulated parts at

the bottom of the glide arm.

– This locks the glide arm (28), which is pushed all the way

Glide arm pulled all the way forward:

– Pull the glide arm (28) all the way forward.

– The glide mechanism is now completely extended.

– Pull the clamping lever (25) upwards until the clamping

wedge is positioned between the two articulated parts at

the bottom of the glide arm.

– This locks the glide arm (28), which is pulled all the way

Preparing for Operation

Extending the Saw Table (see figure C)

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 (7).

– Push the clamping lever (51) inwards.

Bosch Power Tools 1 609 92A 4CT | (20.07.2018)38 | English

– Pull out the saw table extension (7) to the required length

– To lock the saw table extension in place, push the clamp-

When sawing mitre and/or bevel angles, you have to pull the left-hand or right-hand adjustable fence (5) outwards depending

on the cutting direction, or remove it completely.

Bevel angle Mitre angle

– Loosen the locking screw (52).

– Pull the left-hand adjustable fence (5) all the way out.

– Loosen the locking screw (52).

– Pull the left-hand adjustable fence (5) all the way out.

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

– Remove the locking screw (52).

– Loosen the locking screw (52).

– Pull the right-hand adjustable fence (5) all the way out.

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

Adjusting the Damping of the Glide Arm (see figure F)

The glide mechanism of the glide arm (28) is preset at the

factory and is not damped when the power tool is delivered.

The damping of the glide mechanism can be adjusted using

Hard – for more controlled work movements;

Soft – for fast saw cuts.

– For softer damping, loosen the two set screws (54) using

the hex key (4 mm) (17)

– tighten the two set screws (54) for harder damping.

Clamping the Workpiece (see figure G)

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 (6).

– Insert the supplied screw clamp (19) into one of the holes

(55) intended for this purpose.

– Loosen the wing bolt (56) and adapt the screw clamp to

the workpiece. Tighten the wing bolt again.

– Firmly clamp the workpiece by turning the threaded rod

Adjusting the horizontal mitre angle

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",

u Always tighten the locking knob (11) firmly before

sawing. Otherwise the saw blade can become wedged in

Setting Standard Mitre Angles (see figure H)

For quick and precise setting of commonly used mitre

angles, detents (15) are provided on the saw table:

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

– Loosen the locking knob (11) if it is tightened.

– Pull the lever (12) and rotate the saw table (38) left or

right to the required detent.

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

– Retighten the locking knob (11).

Setting Any Mitre Angle (see figure I)

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

– Loosen the locking knob (11) if it is tightened.

– Pull the lever (12) and at the same time press the locking

clamp (10) until this clicks into the slot provided for it.

This means the saw table can now move freely.

– Turn the saw table (38) left or right by the locking knob

until the angle indicator (58) shows the required mitre

– Retighten the locking knob (11).

– To loosen the lever (12) again (for setting standard mitre

angles), pull the lever upwards.

The locking clamp (10) springs back into its original posi-

tion and the lever (12) can click back into the detents

Adjusting vertical mitre angles

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

must be checked and adjusted as necessary after intensiveuse (see "Checking and Adjusting the Basic Settings",

The bevel angle can be set between 47° (left side) and 47°

For quick and precise setting of frequently used bevel

angles, stops have been provided for the angles 0°, 22.5°,

Setting the left-hand bevel angle range (45° to 0°)

– Pull the left-hand adjustable fence (5) all the way out (see

"Moving the fence", page38).

– Loosen the clamping handle (13).

– Use the handle (1) to swivel the glide arm (28) to the left

until the angle indicator (33) shows the required bevel

– Hold the glide arm (28) in this position and retighten the

clamping handle (13).

The clamping force of the clamping handle must hold the

glide arm securely in place at any bevel angle.

Setting the Right-hand Bevel Angle Range (0° to 45°)

– Pull the right-hand adjustable fence (5)all the way out

(see "Moving the fence", page38).

– Loosen the clamping handle (13).

– Use the handle (1) to tilt the glide arm (28) slightly to the

left from the 0° position and turn the rotary knob (39) un-

til the required bevel angle range is shown.

– Use the handle (1) to swivel the glide arm (28) to the

right until the angle indicator (21) shows the required

– Hold the glide arm (28) in this position and retighten the

clamping handle (13).

The clamping force of the clamping handle must hold the

glide arm securely in place at any bevel angle.

Setting the Standard 0° bevel angle

To enable the standard 0° bevel angle to be reset

easily, the rotary knob (39) engages in the left-

hand bevel angle range.

– Swivel the glide arm (28) from the right to the 0° position.

Setting the entire bevel angle range (–47° to +47°)

– Pull both adjustable fences (5) all the way out (see "Mov-

ing the fence", page38).

– Loosen the clamping handle (13).

– Use the handle (1) to tilt the glide arm (28) slightly to the

left from the 0° position and turn the rotary knob (39) un-

til the required bevel angle range is shown.

– Use the handle (1) to swivel the glide arm (28) to the left

or right until the angle indicator (33) or (21) shows the

required bevel angle.

– Hold the glide arm (28) in this position and retighten the

clamping handle (13).

The clamping force of the clamping handle must hold the

glide arm securely in place at any bevel angle.

Setting the Standard 22.5° Bevel Angle (see figure K)

Pull the adjustment knob (34) all the way out and turn it 90°.

Then use the handle (1) to swivel the glide arm (28) until

you hear the glide arm engage.

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.

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 L)

– To start the power tool, first slide the lock-off switch (2)

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

Note: For safety reasons, the on/off switch (59) cannot be

locked; it must remain pressed during the entire operation.

– To switch off, release the on/off switch (59).

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 without delay. For addresses, see: (see "After-

sales service and advice on using products", page44).

General sawing instructions

u Always tighten the locking knob (11) and the clamp-

ing handle (13) 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.

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1 609 92A 4CT | (20.07.2018) Bosch Power Tools

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 glide arm is guided downward. When the

glide arm is guided upward, the retracting blade guard must

close again over the saw blade and lock in the uppermost po-

sition of the tool arm.

Marking the cutting line (see figure M)

Two laser beams indicate the cutting width of the saw blade.

This allows for exact positioning of the workpiece for sawing,

without having to open the retracting blade guard.

– Switch on the laser beams with the switch (60).

– Position your mark on the workpiece between the two

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

ated correctly (see "Adjusting the Laser", page41). Vibra-

tions during intensive use, for example, can cause the laser

beams to become misaligned.

Position of the Operator (see figure N)

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 arm across the other when in front of

Replacing the Insert Plates (see figure O)

The red insert plates (9) can become worn after prolonged

use of the power tool.

Replace defective insert plates.

– Bring the power tool into the work position.

and remove 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 (61) 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-

Permissible workpiece dimensions

Maximum workpiece dimensions:

Mitre angle Bevel angle Height x width [mm]

Workpiece against fence Workpiece against spacer (accessory)

Minimum workpiece dimensions (= all workpieces that can be secured left or right of the saw blade using the supplied screw

Maximum cutting depth (0°/0°): 104 mm

u Always tighten the locking knob (11) and the clamp-

ing handle (13) firmly before sawing. Otherwise the

saw blade can become wedged in the workpiece.

Sawing without Slide Movement (cutting off) (see figure

– Push the glide arm (28) all the way back and secure it in

this position (see "Securing the Glide Arm (see figure

Make sure that the depth stop (30) is pressed all the way

in and that the adjusting screw (29) fits through the re-

cess without touching the depth stop when moving the

– Firmly clamp the workpiece as appropriate for its dimen-

– Set the desired mitre and/or bevel angle if required.

– Switch the power tool on (see "Switching On (see figure

– Slowly guide the glide arm (28) downwards using the

– 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 glide arm (28) upwards.

Sawing with Slide Movement (see figure Q)

u Maintain a firm grip on the handle before switching

the power tool on and during the entire sawing pro-

cess. Ensure that the movement of the glide arm is

controlled during sawing. The glide arm is very easy to

move and a moment of inattention could result in serious

injury.– Unlocking the glide arm(28) (see "Unlocking the Glide

Arm (see figure B1)", page37).

Check whether the complete glide mechanism is ready to

be used by sliding the glide arm (28) back and forth.

– Firmly clamp the workpiece as appropriate for its dimen-

– Set the desired mitre and/or bevel angle if required.

– Pull the glide arm (28) away from the fence (6) by the

handle (1) until the saw blade is in front of the workpiece.

– Switch the power tool on (see "Switching On (see figure

– Slowly guide the glide arm (28) downwards using the

– Now push the glide arm (28) towards the fence (6) 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 glide arm (28) upwards.

Sawing Workpieces of the Same Length (see figure R)

The length stop (36) (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 (7).

– Loosen the locking screw (35) and move the length stop

(36) over the clamping screw (62).

– Retighten the locking screw (35).

– Set the saw table extension (7) to the required length

(see "Extending the Saw Table (see figure C)", page37).

Adjusting the Depth Stop (Sawing the Groove) (see

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

groove or use a spacer.

– Swivel the depth stop (30) outwards.

– Use the handle (1) to swivel the glide arm (28) into the

– Turn the adjusting screw (29) until the end of the screw

touches the depth stop (30).

– Slowly guide the glide arm (28) 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.

Working on mouldings (base or crown

Mouldings can be sawn in two different ways:

Base moulding Crown moulding

Furthermore, you can cut with or without the slide move-

ment depending on the width of the moulding.

Always check the set mitre and/or bevel angle first by mak-

ing trial cuts in scrap wood.

To ensure precise cuts, the laser beams must be checked

and adjusted as necessary after intensive use.

Experience and suitable special tools are required for this.

A Bosch after-sales service point will handle this work

quickly and reliably.

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

nected to the power supply.

u Never press the on/off switch while adjusting the

laser (e.g. when moving the glide arm). Accidental

starting of the power tool can lead to injuries.

– Bring the power tool into the work position.

– Turn the saw table (38) to the 0° detent (15). The lever

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

Checking (see figure T1)

– Draw a straight cutting line on the workpiece.

– Slowly guide the glide arm (28) downwards using the

– Position the workpiece so that the teeth of the saw blade

line up with the cutting line.

– Hold the workpiece in this position and slowly guide the

– Clamp the workpiece.

– Switch on the laser beams with the switch (60).

The laser beams must be the same distance away (left and

right) from the cutting line marked on the workpiece along

their entire length, even when lowering the glide arm.

Removing the laser protection cap (see figure T2)

– Loosen the two screws (63) on the laser protection cap

(27) using the hex key (4 mm) (17).

Note: To access the front screw on the laser protection

cap, the glide arm must be swivelled down slightly until

the hex key can be inserted through one of the slots on

the retracting blade guard.

Adjusting the flush alignment (see figure T3)

– Remove the laser protection cap (27).

1. Adjusting the right-hand laser beam:

Bosch Power Tools 1 609 92A 4CT | (20.07.2018)42 | English

1 609 92A 4CT | (20.07.2018) Bosch Power Tools

– Turn the rear set screw (64) using the hex key (18) until

the entire length of the right-hand laser beam is flush with

the cutting line marked on the workpiece.

This also moves the left-hand laser beam.

One rotation anticlockwise moves the laser beam from left to

right; one rotation clockwise moves the laser beam from

2. Adjusting the left-hand laser beam:

– Turn the front set screw (64) using the hex key (18) until

the left-hand laser beam is the same distance away from

the cutting line marked on the workpiece as the right-

One rotation anticlockwise moves the laser beam from left to

right; one rotation clockwise moves the laser beam from

– Reattach the laser protection cap (27).

Adjusting the parallelism (see figure T4)

– Remove the laser protection cap (27).

– Loosen the fastening screw (65) (by approx. 1–2 turns)

using the hex key (18). Do not unscrew the screw com-

– Move the laser mounting plate to the right or left until the

laser beams are parallel with the marked cutting line on

the workpiece along their entire length.

– Hold the laser mounting plate in this position and

retighten the fastening screw (65).

– Check the flush alignment with the cutting line again fol-

lowing adjustment. If required, use the set screws (64) to

align the laser beams again.

– Reattach the laser protection cap (27).

Adjusting the side deviation when moving the glide arm

– Remove the laser protection cap (27).

– Loosen the two fastening screws (66) (by approx. 1–2

turns) using the hex key (18).

Do not completely unscrew the screws.

– Move the laser housing to the right or left until the laser

beams no longer deviate at the sides when moving the

– Check the flush alignment with the cutting line again fol-

lowing adjustment. If required, use the set screws (64) to

align the laser beams again.

– Hold the laser housing in this position and retighten the

fastening screws (66).

– Reattach the laser protection cap (27).

Checking and Adjusting the Basic Settings

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

must be checked and adjusted as necessary after intensive

use. Experience and suitable special tools are required for

A Bosch after-sales service point will handle this work

quickly and reliably.

Setting the Standard 0° Bevel Angle

– Bring the power tool into the transport position.

– Turn the saw table (38) to the 0° detent (15). The lever

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

Checking (see figure U1)

– 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

(40) along its entire length.

Setting (see figure U2)

– Loosen the clamping handle (13).

– Loosen the two set screws (67) (by at least one turn) us-

ing a socket spanner (10 mm).

– Loosen the set screw(69) (by approx. three turns) using

the hex key (4 mm) (17).

– Tighten or loosen the set screw (68) using the hex key (4

mm) (17) until the leg of the angle gauge is flush with the

saw blade along its entire length.

– Retighten the clamping handle (13). Then tighten the set

screw (69) followed by the set screws (67).

If the angle indicators (33) and (21) are not in line with the

0° marks on the scale (32) following adjustment, loosen the

fastening screws on the angle indicators using a cross-

headed screwdriver and align the angle indicators with the

Setting the Standard 45° Mitre Angle (left)

– Bring the power tool into the work position.

– Turn the saw table (38) to the 0° detent (15). The lever

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

– Pull the left-hand adjustable fence (5) all the way out.

– Loosen the clamping handle (13) and swivel the glide arm

to the left stop (45°) by the handle (1).

Checking (see figure V1)

– 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

(40) along its entire length.

Setting (see figure V2)

– Tighten or loosen the set screw (70) using an open-ended

spanner (8 mm) until the leg of the angle gauge is flush

with the saw blade along its entire length.

– Retighten the clamping handle (13).

If the angle indicators (33) and (21) are not in line with the

45° marks on the scale (32) following adjustment, first

check the 0° setting for the bevel angle and the angle indicat-

ors once more. Then repeat the adjustment of the 45° bevel

Setting the Standard 45° Mitre Angle (right)

– Bring the power tool into the work position.

– Turn the saw table (38) to the 0° detent (15). The lever

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

– Pull the right-hand adjustable fence (5) all the way out.

– Loosen the clamping handle (13).– Use the handle (1) to tilt the glide arm slightly to

the left from the 0° position and turn the rotary

knob (39) until the right-hand bevel angle range is

– Swivel the glide arm to the right stop (45°) by the handle

Checking (see figure W1)

– Set an angle gauge to 135° and place it on the saw table

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

(40) along its entire length.

Setting (see figure W2)

– Tighten or loosen the set screw (71) using an open-ended

spanner (8 mm) until the leg of the angle gauge is flush

with the saw blade along its entire length.

– Retighten the clamping handle (13).

If the angle indicators (33) and (21) are not in line with the

45° marks on the scale (32) following adjustment, first

check the 0° setting for the bevel angle and the angle indicat-

ors once more. Then repeat the adjustment of the 45° bevel

Aligning the scale for mitre angles

– Bring the power tool into the work position.

– Turn the saw table (38) to the 0° detent (15). The lever

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

Checking (see figure X1)

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

fence (6) and the saw blade (40) on the saw table (38).

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

(40) along its entire length.

Setting (see figure X2)

– Loosen all four set screws (72) using the hex key (4 mm)

(17) and turn the saw table (38) together with the scale

(37) 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 (58) is not aligned with the 0° mark on

the scale (37) following adjustment, loosen the screw (73)

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

ator along the 0° mark.

Adjusting the Clamping Force of the Clamping Handle

The clamping force of the clamping handle (13) can be ad-

– The clamping force of the clamping handle must hold the

glide arm securely in place at any bevel angle.

– Loosen the clamping handle (13).

– Use a socket spanner (17 mm) to turn the set screw (74)

anticlockwise to reduce the clamping force or clockwise

to increase the clamping force.

– Set a bevel angle, retighten the clamping handle (13) and

check whether the required clamping force has been

Transport (see figure Z)

Before transporting the power tool, the following steps must

– Slide the glide arm (28) all the way back and secure it in

this position (see "Securing the Glide Arm (see figure

– Make sure that the depth stop (30) is pressed all the way

in and that the adjusting screw (29) fits through the re-

cess without touching the depth stop when moving the

– Guide the glide arm downwards until you can press the

transport safety lock (31) all the way in

– Slide the saw table extensions (7) all the way in.

– Set the bevel angle to 0° and tighten the clamping handle

– Turn the saw table (38) as far as possible to the left and

tighten the locking knob (11).

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

and-loop strap (75).

– Remove all accessories that cannot be securely fitted to

– If possible, transport unused saw blades in an enclosed

– For transport, hold the power tool by the recessed

handles (16) on either side of the saw table.

u Use only the transport fixtures to transport the power

tool. Never carry the power tool by the protective

devices, the glide arm (28) or the handle (1).

Maintenance and servicing

Maintenance and cleaning

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

work on the power tool.

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

u To ensure safe and efficient operation, always keep

the power tool and the ventilation slots clean.

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 (20) and the glide arm (28) regu-

Saw blades for wood and fibreboard, panels and strips

305 x 30 mm saw blade, 60 teeth 2 608 641 768

Saw blades for plastic and non-ferrous metals

305 x 30 mm saw blade, 96 teeth 2 608 642 099

305 x 30 mm saw blade, 96 teeth 2 608 640 453

Saw blades for all types of laminate flooring

305 x 30 mm saw blade, 96 teeth 2 608 642 137

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.Français

Bosch Service Center

Boringer for montering

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