160992A9K8 Robert Bosch Power Tools GmbH Instructions

GCM 12 GDL Professional
HEAVY DUTY

Original instructions

160992A9K8 Robert Bosch Power Tools GmbH

Safety Instructions

General Power Tool Safety Warnings

WARNING
Read all safety warnings, instructions, illustrations and specifications provided with this power tool. Failure to follow all instructions listed below may result in electric shock, fire and/ or serious injury.
Save all warnings and instructions for future reference.
The term “power tool” in the warnings refers to your mainsoperated (corded) power tool or battery-operated (cordless) power tool.

Work area safety

• Keep work area clean and well lit. Cluttered or dark areas invite accidents.
• 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.
• Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.

Electrical safety

• 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.

• Avoid body contact with earthed or grounded surfaces, such as pipes, radiators, ranges and refrigerators.
  There is an increased risk of electric shock if your body is earthed or grounded.

• Do not expose power tools to rain or wet conditions.
  Water entering a power tool will increase the risk of electric shock.

• Do not abuse the cord. Never use the cord for carrying, 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.

• When operating a power tool outdoors, use an extension cord suitable for outdoor use.
  Use of a cord suitable for outdoor use reduces the risk of electric shock.

• If operating a power tool in a damp location is unavoidable, use a residual current device (RCD) protected supply.
  Use of an RCD reduces the risk of electric shock.

Personal safety

• 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 inattention while operating power tools may result in serious personal injury.

• 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 injuries.

• 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 energising power tools that have the switch on invites accidents.

• 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 injury.

• Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.

• Dress properly. Do not wear loose clothing or jewellery. Keep your hair and clothing away from moving parts. Loose clothes, jewellery or long hair can be caught in moving parts.

• If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used. Use of dust collection can reduce dust-related hazards.

• 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 injury within a fraction of a second. Power tool use and care

• 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 designed.

• 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.

• Disconnect the plug from the power source and/or remove the battery pack, if detachable, from the power tool before making any adjustments, changing accessories, or storing power tools. Such preventive safety measures reduce the risk of starting the power tool accidentally. 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.

• Maintain power tools and accessories. Check for misalignment 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.

• Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.

• Use the power tool, accessories and tool bits etc. in accordance with these instructions, taking into account the working conditions and the work to be performed.
  Use of the power tool for operations different from those intended could result in a hazardous situation.

• 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.

Service

• 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

• 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 parts.

• Use clamps to support the workpiece whenever possible. 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.

• 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.

• 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.

• Never cross your hand over the intended line of cutting 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.

• Do not reach behind the fence with either hand closer than 100 mm from either side of the saw blade, to remove 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 seriously injured.

• Inspect your workpiece before cutting. If the workpiece 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 workpieces 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.

• 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 contact the revolving blade can be thrown with highspeed.

• 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.

• Ensure the mitre saw is mounted or placed on a level, firm work surface before use. A level and firm work surface reduces the risk of the mitre saw becoming unstable.

• 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 interfere 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 the fence.

• 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 widerthan 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.

• 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.

• 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.

• 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.

• Let the blade reach full speed before contacting the workpiece. This will reduce the risk of the workpiece being thrown.

• 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 remove 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.

• 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.

• 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.

• Do not let go of the handle once the saw head has reached the lowest position. Always guide the saw head back to the top position by hand. There is a risk of injury if the saw head moves in an uncontrolled manner.

• Keep your work area clean. Material mixtures are particularly hazardous. Light metal dust may catch fire or explode.

• Do not use dull, cracked, bent or damaged saw blades. Unsharpened or improperly set saw blades produce narrow kerf causing excessive friction, blade binding and kickback.

• Do not use saw blades made from high speed steel (HSS). Such saw blades can easily break.

• 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.

• Never remove cuttings, wood chips, etc. from the cutting 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.

• Do not touch the saw blade after working before it has cooled. The saw blade becomes very hot while working.

• 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 exposure to radiation.

• Do not replace the integrated laser with a laser of another type. A laser that is not compatible with this power tool could pose a risk to persons.

• Do not make any modifications to the laser equipment. 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 stare into the direct or reflected laser beam yourself. You could blind somebody, cause accidents or damage your eyes.

• Never make warning signs on the machine unrecognisable.

Symbols
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

| CLASS 1 LASER PRODUCT
---|---
| Keep hands away from the cutting area
while the power tool is running. Contact with the saw blade can lead to injuries.
| Wear a dust mask.
| 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 mov-ing parts of the glide arm. There is a risk of fingers being crushed and severely injured.
| Take note of the dimensions of the saw blade (saw blade diameter D, hole diameter d). The hole diameter d must match the tool spindle without play. If it is necessary 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 possible, use the reducers provided with the saw blade.
The saw blade diameter D must match the information specified on the symbol.
See also: “Dimensions of suitable saw blades” in the “Technical Data” section.
| When transporting the power tool, hold it only at the locations indicated (recessed handles) or by the transport handle.
| Never carry the power tool using the handle of the glide arm.
| Switching on the laser
| Clamping handle open:
Adjusting bevel angles is possible.
Clamping handle closed:
The set bevel angle of the glide arm is locked.
| Indicates the individual steps for adjusting the bevel angle.
1. Loosen the clamping handle
2. Swivel the glide arm slightly to the left
3. Set the required bevel angle range using the rotary knob
| Setting the bevel angle ranges using the rotary knob:
| Saw blade inclination to the left (45° to 0°)
| Saw blade inclination to the right (0° to 45°)
| Entire swivel range of the glide arm (-47° to +47°)

Product Description and Specifications

Read all the safety and general instructions.
Failure to observe the safety and general instructions may result in electric shock, fire and/or serious injury.
Please observe the illustrations at the beginning of this operating manual.
Intended Use
The power tool is intended as a stationary machine for making straight cuts in wood with and against the grain. It is possible 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 sawing hardwood and softwood as well as chipboard and fibreboard.
When using appropriate saw blades, sawing aluminium profiles and plastic is also possible.
Product features
The numbering of the product features refers to the diagram of the power tool on the graphics page.

1. Handle
2. Lock-off button for on/off switch
3. Protective guard
4. Retracting blade guard
5.  Adjustable fence
6. Fence
7. Saw table extension
8. Mounting holes
9. Insert plate
10.  Locking clamp
11.  Locking knob for all mitre angles
12.  Mitre pre-setting lever
13.  Clamping handle for all bevel angles
14. Detents for standard mitre angles
15. Recessed handles
16. Hex key (6 mm/4 mm)
17. Hex key (2 mm)
18.  Screw clamp
19. Guide roller
20. Angle indicator for right-hand bevel angle range (0° to 47°)
21. Chip deflector
22. Chip ejector
23. Dust extraction adapter
24. Glide mechanism clamping lever
25. Laser warning label
26. Laser protection cap
27. Glide arm
28. Depth stop adjusting screw
29. Depth stop
30. Transport safety lock
31.  Scale for bevel angles
32. Angle indicator for left-hand bevel angle range (47° to 0°)
33. Adjustment knob for 22.5° bevel angle
34. Locking screw for length stop
35. Length stop
36. Scale for mitre angles
37. Saw table
38. Rotary knob for adjusting the bevel angle range
39. Saw blade
40. Laser beam outlet aperture
41. Locking screw for the linkage of the retracting blade guard
42. Linkage of the retracting blade guard
43. Front fastening screw (cover plate/retracting blade guard)
44. Rear fastening screw (cover plate/retracting blade guard)
45. Cover plate
46. Spindle lock
47.  Hex socket screw for mounting the saw blade
48. Clamping flange
49.  Inner clamping flange
50. Clamping lever of the saw table extension
51. Locking screw for the adjustable fence
52. Damper
53. Set screws for damping
54. Holes for screw clamp
55. Wing bolt
56. Threaded rod
57. Angle indicator for mitre angles
58.  On/off switch
59.  On/off switch for laser (cutting line indication)
60. Screws for insert plate
61. Clamping screw for length stop
62.  Screw for laser protection cap
63.  Set screw for positioning the laser (flush levelling)
64. Fastening screw for laser mounting plate
65.  Fastening screw for laser housing
66.  /Set screws for 0° basic setting (bevel angle)
67. /
68. 69. Set screw for 45° basic setting (left-hand bevel angle)
69.  Set screw for 45° basic setting (right-hand bevel angle)
70. Set screws for mitre angle scale
71.  Screw for mitre angle indicator
72. Set screw for adjusting the clamping force of the clamping handle for any bevel angle
73. Hook-and-loop strap

Technical Data

3 601 M23 68.
3 601 M23 6K.
Rated power input| W| 2000| 1800
Rated voltage| V| 230–240| 220–230
Frequency| Hz| 50| 50/60
No-load speed| min–1| 4000| 4000
Starting current limitation| | ●| ●
Laser type| nm| 650| 650
| mW| < 1| < 1
Laser class| | 1| 1
WeightA)| kg| 29.4| 29.4
Protection class| | /||| /||
Dimensions of suitable saw blades
Saw blade diameter D| mm| 305| 305
Base blade thickness| mm| 1.7–2.6| 1.7–2.6
Max. cutting width| mm| 3.2| 3.2
Hole diameter d| mm| 25.4| 25.4

A) Weight without mains connection cable and without mains plug
Permissible workpiece dimensions (see “Permissible workpiece dimensions”, page 24)
Values can vary depending on the product, scope of application and environmental conditions. To find out more, visit www.bosch- professional.com/wac.

Assembly

• 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.

Items Included

See the list of items included at the start of the operating manual.

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 fitted saw blade (39)
• Locking knob (11)
• Hex key (16)
• Hex key (17)
•  Screw clamp (18)
•  SDS bolt
• Dust bag

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 fitted 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 properly repaired or replaced by an authorised service centre.

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 individual components

• Carefully remove all parts included in the delivery from their packaging.
• Remove all packing material from the power tool and the accessories provided.

Fitting the locking knob (see figure a)

• Screw the locking knob (11) into the corresponding hole above the lever (12).
• Always tighten the locking knob (11) firmly before sawing. Otherwise the saw blade can become wedged in the workpiece.

Stationary or flexible mounting

• To ensure safe handling, the power tool must be mounted on a flat, stable work surface (e.g. work bench) before use.

Mounting on a work surface (see figure b1)

• Use suitable screw fasteners to secure the power tool to the work surface. The holes (8) are used for this purpose.
  or

• Firmly clamp the base of the power tool to the work surface with commercially available screw clamps.

Mounting on a Bosch saw stand
(see figure b2)
(GTA 2500 W, GTA 3700, GTA 3800)
With the height-adjustable legs, Bosch GTA saw stands provide firm support for the power tool on any surface. The workpiece supports of the saw stand are used for underlaying long workpieces.

• Read all the warnings and instructions included with the saw stand. Failure to observe the warnings and follow instructions may result in electric shock, fire and/or serious injury.
• Assemble the saw stand properly before mounting the power tool. Correct assembly is important to prevent the risk of collapsing.
  – Mount the power tool on the saw stand in the transport position.

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 reactions 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 containing asbestos may only be machined by specialists.
– Use a dust extraction system that is suitable for the material wherever possible.
– Provide good ventilation at the workplace.
– It is advisable to wear a P2 filter class breathing mask.
The regulations on the material being machined that apply in the country of use must be observed.

• Avoid dust accumulation at the workplace. Dust can easily ignite.
  The dust/chip extraction system can be blocked by dust, chips or fragments of the workpiece.
  – Switch the power tool off and pull the mains plug out of the socket.
  – Wait until the saw blade has come to a complete stop.
  – Determine the cause of the blockage and eliminate it.

External Dust Extraction
You can also attach a dust extraction hose (35 mm diameter) to the extraction adapter (23) for extraction.
– Connect the dust extraction hose to the extraction adapter (23).
The dust extractor must be suitable for the material being worked.
When extracting dry dust that is especially detrimental to health or carcinogenic, use a special dust extractor.

Cleaning the dust extraction adapter
To ensure optimum extraction, the dust extraction adapter (23) must be cleaned regularly.

• Pull the dust extraction adapter (23) off the chip ejector (22) 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)

• Pull the plug out of the socket before carrying out any work on the power tool.
• Wear protective gloves when fitting the saw blade.
  There is a risk of injury when touching the saw blade.
  Only use saw blades that have a maximum permitted speed higher than the no- load speed of the power tool.
  Only use saw blades that match the specifications given in this operating manual and that have been tested and marked in accordance with EN 847-1.
  Only use saw blades that are recommended by the power tool manufacturer and are suitable for use on the material you want to saw. This will prevent the saw teeth overheating when sawing.

Removing the Saw Blade

• Bring the power tool into the work position.

• Unscrew the locking screw (41) by hand until the linkage (42) can hang down freely.

• Loosen the fastening screw (43) (by approx. two turns) using the hex key (4 mm) (16).
  Do not unscrew the screw completely.

• Loosen the fastening screw (44) (by approx. six turns) using the hex key (4 mm) (16).
  Do not unscrew the screw completely.

• Pull the cover plate (45) forwards and downwards away from the fastening screw (44).

• Swivel the retracting blade guard (4) to the back and hold it in this position.

• Hang the linkage (42) over the fastening screw (44) using a hole.
  This will hold the retracting blade guard open.

•  Turn the hex socket screw (47) with the hex key ( mm) (16) and at the same time push the spindle lock (46) until it engages.

• Keep holding the spindle lock (46) and loosen the hex socket screw (47) by turning it clockwise (left-hand thread).

• Remove the clamping flange (48).

• Remove the saw blade (39).

Fitting the saw blade

• 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 protective guard.

If required, clean all the parts you want to fit before installing them.
– Place the new saw blade onto the interior clamping flange (49).
– Fit the clamping flange (48) and the hex socket screw (47). Press the spindle lock (46) until it engages and tighten the hex socket screw by turning it anticlockwise.
– Release the linkage (42) from the fastening screw (44) and guide the retracting blade guard (4) back down.
– Slide the cover plate (45) back under the fastening screw (44).
– Retighten the fastening screws (44) and (43).
– Slide the linkage (42) into its original position and retighten the locking screw (41) by hand.

Operation

• Pull the plug out of the socket before carrying out any work on the power tool.
• Products that are only sold in AUS and NZ: Use a residual current device (RCD) with a nominal residual current of 30 mA or less.

Transport Safety Lock (see figure A)
The transport safety lock (30) 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 (27) down slightly by the handle (1) to release the transport safety lock (30).
• Pull the transport safety lock (30) all the way out.
• Slowly guide the glide arm (27) upwards.

Locking the Power Tool (Transport Position)

• Slide the glide arm (27) all the way back and secure it in this position.
• Guide the glide arm downwards until you can press the transport safety lock (30) all the way in.

Further information: (see ” Transport (see figure Z)”, page 27)

Locking the Glide Arm
The glide mechanism of the glide arm (27) can be locked with the clamping lever (24). The glide arm can be placed in two positions:

• Glide arm pushed all the way back (for cross cuts)
• Glide arm pulled all the way forward (for a compact transport position)

Unlocking the Glide Arm (see figure B1)
After unlocking the glide arm (27), the whole gliding mechanism is ready for operation.

• Press the clamping lever (24) 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 (27) all the way back.
• The two articulated parts at the top of the glide arm are now upright and closed.
• Pull the clamping lever (24) upwards until the clamping wedge is positioned between the two articulated parts at the bottom of the glide arm.
• This locks the glide arm (27), which is pushed all the way back.

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).

Glide arm pulled all the way forward:

• Pull the glide arm (27) all the way forward.
• The glide mechanism is now completely extended.
•  Pull the clamping lever (24) upwards until the clamping wedge is positioned between the two articulated parts at the bottom of the glide arm.
• This locks the glide arm (27), which is pulled all the way forward.
• Push the clamping lever (50) inwards.
• Pull out the saw table extension (7) to the required length (maximum 250 mm).
• To lock the saw table extension in place, push the clamping lever (50) back out.

Moving the fence (see figures D–E)
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|
---|---|---
0°–47° (left)| ≤ 44° (right/left)| – Loosen the locking screw (51).
– Pull the left-hand adjustable fence (5) all the way out.
0°–47° (left)| ≥ 45° (right/left)| – Loosen the locking screw (51).
– 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 (51).
0°–47° (right)| ≤ 44° (right/left)| – Loosen the locking screw (51).
– Pull the right-hand adjustable fence (5) all the way out.
– Lift the adjustable fence upwards and out of the way.
0°–47° (right)| ≥ 45° (right/left)

Adjusting the damping of the glide arm (see figure F)
The glide mechanism of the glide arm (27) 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 the damper (52):
Hard – for more controlled work movements; Soft – for fast saw cuts.

• For softer damping, loosen the two set screws (53) using the hex key (4 mm) (16)
•  or
•  tighten the two set screws (53) 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 fences (6) and (5).
• Insert the supplied screw clamp (18) into one of the corresponding holes (54).
• Loosen the wing bolt and adjust the screw clamp to the workpiece. Tighten the wing bolt again.
• Tighten the threaded rod (56) to fix the workpiece in place.

Releasing the workpiece

• To loosen the screw clamp, turn the threaded rod (56) anticlockwise.

Adjusting the Mitre Angle
Setting Standard Mitre Angles (see figure H)
For quick and precise setting of commonly used mitre angles, detents (14) are provided on the saw table:

0°
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 (37) left or right to the required detent.
• Release the lever again. The lever must be felt to engage in the detent.
• Retighten the locking knob (11).

Setting Any Mitre Angle (see figure I)
The mitre angle can be set between 52° (left side) and 60° (right side).

• 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 (37) left or right by the locking knob until the angle indicator (57) shows the required mitre angle.

•  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 position and the lever (12) can click back into the detents (14).

Adjusting Bevel Angles
The bevel angle can be set between 47° (left side) and 47° (right side).
For quick and precise setting of frequently used bevel angles, stops have been provided for the angles 0°, 22.5°, 45° and 47°.

Setting the Left-hand Bevel Angle range (45° to 0°)

• Pull the left-hand adjustable fence (5) all the way out.
• Loosen the clamping handle (13).
• Use the handle (1) to swivel the glide arm (27) to the left until the angle indicator (32) shows the required bevel angle.
• Hold the glide arm (27) 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°) (see figure J)

• 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 (27) slightly to the left from the 0° position and turn the rotary knob (38) until the required bevel angle range is shown.
• Use the handle (1) to swivel the glide arm (27) to the right until the angle indicator (20) shows the required bevel angle.
• Hold the glide arm (27) 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 (38) engages in the lefthand bevel angle range.

• Swivel the glide arm (27) 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.
•  Loosen the clamping handle (13).
• Use the handle (1) to tilt the glide arm (27) slightly to the left from the 0° position and turn the rotary knob (38) until the required bevel angle range is shown.
• Use the handle (1) to swivel the glide arm (27) to the left or right until the angle indicator (32) or (20) shows the required bevel angle.
• Hold the glide arm (27) 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 (33) all the way out and turn it 90°.
Then use the handle (1) to swivel the glide arm (27) until you hear the glide arm engage.

Start-up

• 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.

Switching on (see figure L)

• To switch on the power tool, first slide the lock-off button (2) to the middle and then press and hold the on/ off switch (58).

Note: For safety reasons, the on/off switch (58) cannot be locked; it must remain pressed during the entire operation.

Switching off

• To switch off, release the on/off switch (58).

Starting current limitation
The electronic starting current limitation restricts the power consumption when the power tool is switched on and enables operation with a 16 A fuse.
Note: If the power tool runs at full speed immediately after being switched on, this means that the starting current limitation and restarting protection mechanisms have failed.
The power tool must be sent to the after-sales service without delay.

Practical advice
General sawing instructions

• Always tighten the locking knob (11) and the clamping handle (13) firmly before sawing. Otherwise the saw blade can become wedged in the workpiece.
• 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 subject the saw blade to lateral pressure.
Only saw materials which are permitted within the scope of the intended use.
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 something 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 downwards. When the tool arm is guided upwards, the retracting blade guard must close again over the saw blade and lock in the uppermost position 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 (59).
• Position your mark on the workpiece between the two laser lines.

Note: Before sawing, check if the cutting width is still indicated correctly Adjusting the Laser. Vibrations during intensive use, for example, can cause the laser beams to become misaligned.

Position of the Operator (see figure N)

• 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 blade.
  – Do not reach one arm across the other when in front of the glide arm (27).

Replacing insert plates (see figure O)
The red insert plates (9) can become worn after prolonged use of the power tool.
Replace faulty insert plates.

• Bring the power tool into the work position.
• Loosen the screws (60) using the hex key (4 mm) (16) 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 (60) 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 new left-hand insert plate.

Permissible workpiece dimensions

Minimum workpiece dimensions (= all workpieces that can be secured left or right of the saw blade using the supplied screw clamps (18)): 160 x 335 mm (length x width)
Maximum cutting depth (0°/0°): 104 mm

Sawing
Sawing without slide movement (cutting off) (see figure P)

• Slide the glide arm (27) all the way back and secure it in this position.
  Make sure that the depth stop (29) is pressed all the way in and that the adjusting screw (28) fits through the recess without touching the depth stop when moving the glide arm.

• Firmly clamp the workpiece as appropriate for its dimensions.

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

• Switch on the power tool.

• Slowly guide the glide arm (27) downwards using the handle (1).

• 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 (27) upwards.

Sawing with Slide Movement (see figure Q)

• Maintain a firm grip on the handle before switching the power tool on and during the entire sawing process. 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.

• Unlock the glide arm (27).
  Check if the complete glide mechanism is operative by sliding the glide arm (27) back and forth.

• Firmly clamp the workpiece as appropriate for its dimensions.

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

• Pull the glide arm (27) away from the fence (6) by the handle (1) until the saw blade is in front of the workpiece.

• Switch on the power tool.

•  Slowly guide the glide arm (27) downwards using the handle (1).

• Now push the glide arm (27) 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 (27) upwards.

Sawing workpieces of the same length (see figure R)
The length stop (35) (accessory) can be used for easily sawing workpieces of the same length. The length stop can be mounted on either side of the saw table extension (7).

• Loosen the locking screw (34) and move the length stop (35) over the clamping screw (61).
• Re-tighten the locking screw (34).
• Set the saw table extension (7) to the required length.

Adjusting the Depth Stop (Sawing the Groove) (see figure S)
The depth stop needs to be adjusted if you wish to saw a groove or use a spacer.

• Swivel the depth stop (29) outwards.
• Use the handle (1) to swivel the glide arm (27) into the required position.
• Turn the adjusting screw (28) until the end of the screw touches the depth stop (29).
•  Slowly guide the glide arm (27) upwards.

Special workpieces
When sawing curved or round workpieces, these must be especially secured against slipping. At the cutting line, there should be no gap between the workpiece, fence and saw table.
If necessary, you will need to manufacture special fixtures.

Working on mouldings
Mouldings can be sawn in two different ways:

Furthermore, you can cut with or without the slide movement depending on the width of the moulding.
Always check the set mitre and/or bevel angle first by making trial cuts in scrap wood.

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 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 connected to the power supply.

• While adjusting the laser (e.g. when moving the tool arm), never activate the on/off switch. Starting the power tool accidentally can lead to injuries.

– Bring the power tool into the work position.
– Turn the saw table (37) to the 0° detent (14). 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 (27) downwards using the handle (1).
• 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 glide arm upwards.
• Clamp the workpiece.
• Switch on the laser beams with the switch (59).

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 (62) on the laser protection cap (26) using the hex key (4 mm) (16).

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 (26).

1. Adjusting the right-hand laser beam:
   – Turn the rear set screw (63) using the hex key (17) 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 right to left.

2. Adjusting the left-hand laser beam:
   – Turn the front set screw (63) using the hex key (17) until the left-hand laser beam is the same distance away from the cutting line marked on the workpiece as the righthand laser beam.
   One rotation anticlockwise moves the laser beam from left to right; one rotation clockwise moves the laser beam from right to left.
   – Reattach the laser protection cap (26).
   Adjusting the parallelism (see figure T4)
   – Remove the laser protection cap (26).
   – Loosen the fastening screw (64) (by approx. 1–2 turns) using the hex key (17). Do not unscrew the screw completely.
   – 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 (64).
   – Check the flush alignment with the cutting line again following adjustment. If required, use the set screws (63) to align the laser beams again.
   – Reattach the laser protection cap (26).

Adjusting the side deviation when moving the glide arm (see figure T5)

• Remove the laser protection cap (26).

• Loosen the two fastening screws (65) (by approx. 1–2 turns) using the hex key (17).
  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 glide arm down.

•  Check the flush alignment with the cutting line again following adjustment. If required, use the set screws (63) to align the laser beams again.

• Hold the laser housing in this position and retighten the fastening screws (65).

•  Reattach the laser protection cap (26).

Setting the Standard 0° Bevel Angle

• Bring the power tool into the transport position.
•  Turn the saw table (37) to the 0° detent (14). 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 (37).

The leg of the angle gauge must be flush with the saw blade (39) along its entire length. Setting (see figure U2)

• Loosen the clamping handle (13).
• Loosen the two set screws (66) (by at least one turn) using a socket spanner (10 mm).
•  Loosen the set screw (68) (by approx. three turns) using the hex key (4 mm) (16).
•  Tighten or loosen the set screw (67) using the hex key (4 mm) (16) 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 (68) followed by the set screws (66).

If the angle indicators (32) and (20) are not in line with the 0° marks on the scale (31) following adjustment, loosen the fastening screws on the angle indicators using a crossheaded screwdriver and align the angle indicators with the 0° marks.

Setting the Standard 45° Mitre Angle (left)

• Bring the power tool into the work position.
• Turn the saw table (37) to the 0° detent (14). 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 (37).

The leg of the angle gauge must be flush with the saw blade (39) along its entire length.

Setting (see figure V2)

• Tighten or loosen the set screw (69) 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 (32) and (20) are not in line with the 45° marks on the scale (31) following adjustment, first check the 0° setting for the bevel angle and the angle indicators once more. Then repeat the adjustment of the 45° bevel angle.

Setting the Standard 45° Mitre Angle (right)

• Bring the power tool into the work position.
• Turn the saw table (37) to the 0° detent (14). 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 (38) until the right-hand bevel angle range is shown.
• Swivel the glide arm to the right stop (45°) by the handle (1).

Checking (see figure W1)

• Set an angle gauge to 135° and place it on the saw table (37).
  The leg of the angle gauge must be flush with the saw blade (39) along its entire length.

Setting (see figure W2)

• 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 (32) and (20) are not in line with the 45° marks on the scale (31) following adjustment, first check the 0° setting 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 (37) to the 0° detent (14). 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 (39) on the saw table (37)The leg of the angle gauge must be flush with the saw blade (39) along its entire length.

Setting (see figure X2)

• Loosen all four set screws (71) using the hex key (4 mm) (16) and turn the saw table (37) together with the scale (36) until the leg of the angle gauge is flush with the saw blade along its entire length.
• Re-tighten the screws again.

If the angle indicator (57) is not aligned with the 0° mark on the scale (36) following adjustment, loosen the screw (72) using a cross-headed screwdriver and align the angle indicator along the 0° mark.

Adjusting the Clamping Force of the Clamping Handle (13) (see figure Y)
The clamping force of the clamping handle (13) can be adjusted.
Checking
– The clamping force of the clamping handle must hold the glide arm securely in place at any bevel angle.
Setting
– Loosen the clamping handle (13).
– Use a socket spanner (17 mm) to turn the set screw (73) 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 reached.

Transport (see figure Z)
Before transporting the power tool, the following steps must be carried out:

• Slide the glide arm (27) all the way back and secure it in this position.
• Make sure that the depth stop (29) is pressed all the way in and that the adjusting screw (28) fits through the recess without touching the depth stop when moving the glide arm.
• Guide the glide arm downwards until you can press the transport safety lock (30) 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 (13).
• Turn the saw table (37) as far as possible to the left and tighten the locking knob (11).
• Wind up the mains cable and tie it together with the hookand-loop strap (74).
• Remove all accessories that cannot be securely fitted to the power tool.
• If possible, transport unused saw blades in an enclosed container.
• For transport, hold the power tool by the recessed handles (15) on either side of the saw table.
• When transporting the power tool, only use the transport fixtures. Never carry the power tool by the protective devices, the glide arm or the handle.

Maintenance and Service

Maintenance and Cleaning

• Pull the plug out of the socket before carrying out any work on the power tool.
• 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 an after-sales service centre that is authorised to repair Bosch power tools.
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 times.
Always remove dust and chips after working by blowing out with compressed air or using a brush.

• Clean the guide roller (19) and the glide arm (27) regularly.

After-Sales Service and Application Service

Our after-sales service responds to your questions concerning 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 accessories.
In all correspondence and spare parts orders, please always include the 10‑digit article number given on the nameplate of the product.
Malaysia
Robert Bosch Sdn. Bhd.(220975-V) PT/SMY
No. 8A, Jalan 13/6
46200 Petaling Jaya
Selangor

Tel.: (03) 79663194
Toll-Free: 1800 880188
Fax: (03) 79583838
E-Mail: [email protected]
www.bosch-pt.com.my

You can find further service addresses at:www.bosch- pt.com/serviceaddresses

Disposal
The power tool, accessories and packaging should be recycled in an environmentally friendly manner.
Do not dispose of power tools along with household waste.

1 609 92A 9K8 | (05.04.2024)
Bosch Power Tools
Robert Bosch Power Tools GmbH
70538 Stuttgart
GERMANY
www.bosch-pt.com
1 609 92A 9K8 (2024.04) PS / 108

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