Bosch 1250 CE GOF Professional Router Instruction Manual

GOF Professional Router
Instruction Manual

Original instructions

Safety Notes

General Power Tool Safety Warnings
WARNING RNING  Read all safety warnings and all instructions. Failure to follow the warning and instructions 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 mains-operated (corded) power tool or battery-operated (cordless) power tool.
Work area safety

• Keep the 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 that may ignite the dusor 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 the 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 and 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. The 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 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 a power source and/or battery pack, picking up or carrying the tool. Carrying power tools with your finger on the switch or energizing 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 jewelry. Keep your hair, clothing and gloves away from moving parts. Loose clothes, jewelry 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. The use of dust collection can reduce dust-related hazards.

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 the battery pack 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.
• 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. 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.

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 Routers

• Hold power tool by insulated gripping surfaces, because the cutter may contact its own cord. Cutting a “live” wire may make exposed metal parts of the power tool “live” and shock the operator.
• Use clamps or another practical way to secure and support the workpiece to a stable platform. Holding the work by your hand or against the body leaves it unstable and may lead to loss of control.
• The allowable speed of the router bit must be at least as high as the maximum speed listed on the power tool. Accessories that rotate faster than permitted can be destroyed.
• Router bits or other accessories must fit exactly in the tool holder (collet) of your machine. Routing bits that do not fit precisely in the tool holder of the machine rotate irregularly, vibrate heavily and can lead to loss of control.
• Apply the machine to the workpiece only when switched on. Otherwise, there is a danger of kickback when the cutting tool jams in the workpiece.
• Keep your hands away from the cutting area and the cutting disc. Hold the auxiliary handle with your second hand. When both hands hold the machine, they cannot be injured by the cutting disc.
• Never cut over metal objects, nails or screws. The router bit can become damaged and lead to increased vibrations.
• Use suitable detectors to determine if utility lines are hidden in the work area or call the local utility company for assistance. Contact with electric lines can lead to fire and electric shock. Damaging a gas line can lead to an explosion. Penetrating a water line causes property damage or may cause an electric shock.
• Do not use blunt or damaged router bits. Blunt or damaged router bits cause increased friction, can become jammed, and lead to imbalance.
• When working with the machine, always hold it firmly with both hands and provide for a secure stance. The power tool is guided more securely with both hands.
• Always wait until the machine has come to a complete stop before placing it down. The tool insert can jam and lead to loss of control over the power tool.

Products sold in GB only:
Your product is fitted with a BS 1363/A approved electric plug with an 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 authorized 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 the main socket elsewhere.
Products sold in AUS and NZ only: Use a residual current device (RCD) with a rated residual current of 30 mA or less.

Product Description and Specifications

Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire, and/or serious injury.
While reading the operating instructions, unfold the graphics page for the machine and leave it open.
Intended Use
The machine is intended for routing grooves, edges, profiles, and elongated holes as well as for copy routing in wood, plastic and light building materials, while resting firmly on the workpiece. With reduced speed and with appropriate routing bits, nonferrous alloys can also be machined.
The light of this power tool (GOF 1250 LCE) is designed to illuminate the immediate work area of the power tool and is not suitable for household room illumination.

Product Features

The numbering of the product features refers to the illustration of the machine on the graphics page.

*Accessories shown or described are not part of the standard delivery scope of the product. A complete overview of accessories can be found in our accessories program.

Technical Data

The values given are valid for a nominal voltage [U] of 230 V. For different voltages and models for specific countries, these values can vary.
Noise/Vibration Information
Sound emission values were determined according to EN 60745-2-17.
Typically the A-weighted noise levels of the product are: Sound pressure level 76 dB(A);
Sound power level 87 dB(A).
Uncertainty K =3 dB.
Wear hearing protection!
Vibration total values ah (triax vector sum) and uncertainty K determined according to EN 60745-2-17:
ah =7.0 m/s 2 2 , K=1.5 m/s2 .
The vibration level given in this information sheet has been measured in accordance with a standardized test given in EN 60745 and may be used to compare one tool with another. It may be used for a preliminary assessment of exposure.
The declared vibration emission level represents the main applications of the tool. However if the tool is used for different applications, with different accessories or insertion tools or is poorly maintained, the vibration emission may differ. This may significantly increase the exposure level over the total working period.
An estimation of the level of exposure to vibration should also take into account the times when the tool is switched off or when it is running but not actually doing the job. This may significantly reduce the exposure level over the total working period.
Identify additional safety measures to protect the operator from the effects of vibration such as: maintaining the tool and the accessories, keep the hands warm,organisation of work patterns.
Declaration of Conformity
We declare under our sole responsibility that the product described under “Technical Data” is in conformity with all relevant provisions of the directives 2009/125/EC (Regulation 1194/2012), 2011/65/EU, until 19 April 2016:
2004/108/EC, from 20 April 2016 on:2014/30/EU, 2006/42/EC including their amendments and complies with the following standards: EN 60745-1, EN 60745-2-17, EN 50581.
Technical file (2006/42/EC) at:
Robert Bosch Power Tools GmbH, PT/ETM9,
70538 Stuttgart, GERMANY
Henk Becker : Helmut Heinzelmann
Executive Vice President:  Head of Product Certification
Engineering:  PT/ETM9

Robert Bosch Power Tools GmbH
70538 Stuttgart, GERMANY
Stuttgart, 01.01.2017

Assembly

Inserting a Router Bit (see figure A)

• Before any work on the machine itself, pull the mains plug.
• It is recommended to wear protective gloves when inserting or replacing router bits.
  Depending on the application, router bits are available in the most different designs and qualities.
  Router bits made of high-speed steel (HSS) are suitable for the machining of soft materials, e. g. softwood, and plastic.
  Carbide tipped router bits (HM) are particularly suitable for hard and abrasive materials, e. g. hardwood and aluminum.
  Original router bits from the extensive Bosch accessories program are available at your specialist shop.
  Only use clean router bits that are in perfect condition.
  – Swivel the spindle lock lever 6 anticlockwise all the way (1 ). If necessary, turn the motor spindle by hand until you hear it engage.
  – Loosen the tightening nut 4 with the open-end spanner 31 (width across flats of 19 mm) by turning it clockwise (2 ).
  – Slide the router bit into the collet. The bit shank must be inserted into the collet at least up to the mark.
  – Tighten the tightening nut 4 with the open-end spanner 31 (width across flats of 19 mm) by turning it anticlockwise. Close the spindle lock lever 6 completely.
• Do not insert any router bits with a diameter greater than 50 mm. These router bits will not fit through the base plate.
• Do not tighten the tightening nut of the collet without a router bit inserted. Otherwise, the collet can be damaged.

Dust/Chip Extraction (see figure B)

• Dust from materials such as lead-containing coatings, some wood types, minerals and metal can be harmful to one’s health. Touching or breathing in the dusts can cause allergic reactions and/or lead to respiratory infections of the user or bystanders.
  Certain dusts, such as oak or beech dust, are considered as carcinogenic, especially in connection with wood-treatment additives (chromate, wood preservative). Materials containing asbestos may only be worked by specialists.
  –As far as possible, use a dust extraction system suitable for the material.
  – Provide for good ventilation of the working place.
  – It is recommended to wear a P2 filter-class respirator. Observe the relevant regulations in your country for the materials to be worked.
• Prevent dust accumulation at the workplace. Dust can easily ignite.
  Connecting the Dust Extraction (see figure B) Attach an extraction hose (Ø 35 mm) 32 (accessory) to port 30 in the base plate 13. Connect the extraction hose 32 to a vacuum cleaner (accessory).
  The machine can be plugged directly into the receptacle of a Bosch all-purpose vacuum cleaner with remote starting control. The vacuum cleaner starts automatically when the machine is switched on. The vacuum cleaner must be suitable for the material being worked.
  When vacuuming dry dust that is especially detrimental to health or carcinogenic, use a special vacuum cleaner.

Operation

Starting Operation

• Observe correct mains voltage! The voltage of the power source must agree with the voltage specified on the nameplate of the machine. Power tools marked with 230 V can also be operated with 220 V.

GOF 1250 LCE: Once the mains voltage has been applied, the light ring 3 lights up continuously to illuminate the workpiece surface.
Insert the battery (see section “Changing the Battery”, page 19). In some v,versions the battery is already inserted. Remove the seal on the battery to activate it. Use the button 17 to set the required unit of measure.
Preselecting the Speed
The required speed can be preselected with the thumbwheel 28 (also while running).

The required speed is dependent on the material and the work conditions and can be determined by practical trials. After longer periods of working at low speed, allow the machine to cool down by running it for approx. 3 minutes at maximum speed with no load.
Switching On and Off
Adjust the depth-of-cut before switching on or off; see Section “Adjusting the Depth-of-cut”. To start the machine, press the On/Off switch 29 and keep it pressed.
To lock the pressed On/Off switch 29, press the lock-on button 2.
To switch off the machine, release the On/Off switch 29 or when it is locked with the lock-on button 2, briefly press the On/Off switch 29 and then release it.
To save energy, only switch the power tool on when using it.
Constant Electronic Control
Constant electronic control holds the speed constant at no load and under load and ensures uniform working performance.
Soft Starting
The electronic soft starting feature limits the torque upon switching on and increases the working life of the motor.
Overload Protection
The overload protection prevents impermissibly high current consumption in the event of extreme overload. This can lead to a reduction in motor speed and power output or in extreme cases to a motor standstill.
Once the load has been removed from the power tool, the motor immediately runs up or back to working speed.
Restarting Protection
The restarting protection feature prevents uncontrolled restarting of the machine after an interruption in the power supply.
To restart the operation, switch the On/Off switch 29 to the Off position and start the machine again.
Release lever (see figure C)
The release lever 23 is automatically reset when you let go of it. For better holding force, the release lever 23 must be pulled back all the way. The holding force can be readjusted if required. To do so, insert an Allen key (4 mm) into the opening on the handle. Turn the Allen key clockwise to increase the holding force, and turn it anticlockwise to reduce the holding force.

Adjusting the Depth-of-cut (see Figures D and E)

• The adjustment of the depth-of-cut may only be carried out when the router is switched off.

For coarse adjustment of the depth-of-cut, proceed as follows:
– Place the machine with the router bit mounted on the workpiece to be machined.
– Set the fine-adjustment path to the center position with the adjustment knob 25. For this, turn the adjustment knob 25 until the marks 19 matches as shown in the figure. Afterward, set the scale 24 to “0”.

– Set the step buffer 9 to the lowest position; the step buffer engages noticeably.
– Loosen the screw 15 on the depth stop 14 so that the depth stop 14 is freely movable.
– Press the release lever 23 back and slowly guide the router down until the router bit 5 touches the workpiece surface. Let go of the release lever 23 again to lock this position.
– Press the depth stop 14 down until it sits on the step buffer 9.
GOF 1250 LCE: Switch on the digital depth setting at the On/Off switch 18. Press button 16 for setting the zero point of the depth stop 14.
GOF 1250 CE: Set the slide with the index mark 27 to position “0” on the depth-of-cut scale 26.
– Set the depth stop 14 to the required depth-of-cut and tighten the screw 15 on the depth stop 14.
GOF 1250 CE: Make sure you do not adjust the slide with the index mark 27 anymore.
– Push the release lever 23 and guide the plunge router to the uppermost position.

For deep cuts, it is recommended to carry out several cuts, each with little material removal. By using step buffer 9, the cutting process can be divided into several steps. For this, adjust the desired depth-of-cut with the lowest step of the step buffer and select the higher steps first for the initial cuts. The clearance of the steps can be changed by screwing the adjusting screws 10 further in or out.
After a test run, the depth-of-cut can be set to the required dimension by turning the adjustment knob 25; turning in a clockwise direction increases the depth-of-cut; turning in an anticlockwise direction decreases the depth-of-cut. A scale 24 can be used for guidance. One revolution corresponds with a setting range of 2,0 mm, one of the graduation marks on the bottom edge of the scale 24 changes the setting range by 0,1 mm. The maximum setting range is ± 8 mm.
Example: The required depth-of-cut should be 10.0 mm, and the test cut resulted in a depth-of-cut of 9.6 mm.

–Turn the scale 24 to “0”.
– Turn the adjustment knob 25 clockwise by 0.4 mm/4 graduation marks (difference between target and actual values).
– Check the selected depth-of-cut by carrying out another trial cut.
GOF 1250 CE: After setting the depth-of-cut, do not change the position of slide 27 on the depth stop 14 any more so that you can always read the current depth-of-cut on scale 26.
GOF 1250 LCE: The current depth-of-cut is shown on the display 21.

Working Advice

• Protect router bits against shock and impact. The directthe ion of Feed and Routing Process (see figure F)
• The routing process must always be carried out against the rotation direction of the router bit 5 (up-cutting motion). When routing in the direction with the rotation of the router (down-cutting), the machine can break loose, eliminating control by the user.

– Adjust the required depth-of-cut; see Section “Adjusting the Depth-of-cut”.
– Place the machine with the router bit mounted on the workpiece to be machined and switch the power tool on.
– Press the release lever 23 back and slowly guide the router down until the router bit touches the workpiece surface. Let go of the release lever 23 again to lock this plunging depth.
– Carry out the routing process by applying uniform feed.
– After finishing the cutting process, guide the plunge router upward again to the uppermost position.
– Switch the power tool off.
Routing with Auxiliary Guide (see figure G)
For working large workpieces, e. g. when routing grooves, a board or wood strip can be fastened to the workpiece as an auxiliary guide alongside which the router can be guided. Guide the router with the flattened side of the guide plate along the auxiliary guide.
Shaping or Molding Applications
For shaping or molding applications without the use of a parallel guide, the router bit must be equipped with a pilot or a ball bearing.
– Guide the switched-on power tool from the side toward the workpiece until the pilot or the ball bearing of the router bit faces against the workpiece edge to be machined.
– Guide the power tool alongside the workpiece edge with both hands, paying attention that the router is positioned rectangular. Too much pressure can damage the edge of the workpiece.

Routing with Parallel Guide (see figure H)
Slide the parallel guide 33 with the rods 34 into the base plate 13 and tighten it with the screws 7 according to the required dimension. You can also use the wing bolts 35 and 36 to set the parallel guide lengthways.
Fine adjustment of the length is possible with the fine-adjustment knob 37 after loosening both wing bolts 35. One revolution corresponds with a setting range of 2.0 mm. One graduation mark on the fine-adjustment knob 37 changes the setting range by 0.1 mm.
The effective contact surface of the parallel guide can be adjusted with the edge guide 38.
Guide the switched-on power tool with uniform feed and lateral pressure on the parallel guide alongside the workpiece edge.
When routing with the parallel guide 33, dust/chip extraction should be performed using the special extraction adapter 39.
Routing with Circle Cutting Adapter (Accessory)
You can use the circle cutting adapter for circular routing work.
Routing with Guide Rail (Accessory)
You can perform work in straight lines using the guide rail and the guide rail adapter.
Routing with Guide Bushing (see figures I–L and figure N)
The guide bushing 43 enables template and pattern routing on workpieces.
In order to use guide bushing 43, the guide bushing adapter 40 must be inserted into the guide plate 11 first.
Place the guide bushing adapter 40 from above onto the guide plate 11 and tighten it firmly with the 2 fastening screws 41. Pay attention that the release lever for the guide bushing adapter 42 is freely movable.
Choose a suitable guide bushing, depending on the thickness of the template or the pattern. Because of the projecting height of the guide bushing, the template must have a minimum thickness of 8 mm.
Actuate the release lever 42 and insert the guide bushing 43 from below into the guide bushing adapter 40. Ensure that the encoding keys clearly engage in the grooves of the guide bushing.

• Select a router bit with a diameter smaller than the interior diameter of the guide bushing.
  To ensure that the distance from the router bit center and guide bushing edge is uniform, the guide bushing and the guide plate can be adjusted to each other, if required.
  – Press the release lever 23 back and guide the router all the way towards the base plate 13. Let go of the release lever 23 again to lock this plunging depth.
  – Loosen the pan head screws 44 so that the guide plate 11 is freely movable.
  – Insert the centering pin 45 into the tool holder as shown in the figure. Hand-tighten the tightening nut so that the centering pin can still be moved freely.
  – Align the guide bushing 43 with the centering pin by lightly pushing the guide plate 11.
  – Tighten the pan head screws 44.
  – Remove the centering pin 45 from the tool holder.
  – Push the release lever 23 and guide the plunge router to the uppermost position. For routing with the guide bushing 43 proceed as follows:
  – Guide the switched-on power tool with the guide bushing toward the template. – Press the release lever 23 back and slowly guide the router down until the router bit touches the workpiece surface. Let go of the release lever 23 again to lock this plunging depth.
  – Guide the switched-on power tool with the protruding guide bushing alongside the template applying lateral pressure.

Changing the Battery (GOF 1250 LCE) (see figure M)
Slide the battery compartment cover 22 up and remove the battery. Insert a new battery (type CR2032). The positive pole of the battery must point forwards to the battery compartment cover 22. Insert the seal 46 and close the battery compartment cover 22.

Maintenance and Service

Maintenance and Cleaning

• Before any work on the machine itself, pull the mains plug.
• For safe and proper working, always keep the machine and ventilation slots clean.
• In extreme conditions, always use dust extraction as far as possible. Blow out ventilation slots frequently and install a portable residual current device (PRCD). When working metals, conductive dust can settle in the interior of the power tool. The total insulation of the power tool can be impaired.

If the replacement of the supply cord is necessary, this has to be done by Bosch or an authorized Bosch service agent in order to avoid a safety hazard.
After-sales Service and Application Service
In all correspondence and spare parts orders, please always include the 10-digit article number given on the type plate of the machine. Our after-sales service responds to your questions concerning maintenance and repair of your product as well as spare parts. Exploded views and information on spare parts can also be found at: www.bosch-pt.com
Bosch’s application service team will gladly answer questions concerning our products and their accessories.

Disposal

The machine, accessories and packaging should be sorted for environmental-friendly recycling.
Do not dispose of power tools into household waste!
Only for EC countries:
According to the European Guideline 2012/19/EU for Waste Electrical and Electronic Equipment and its implementation into national right, power tools that are no longer usable must be collected separately and disposed of in an environmentally correct manner. Subject to change without notice.

 Robert Bosch Power Tools GmbH
70538 Stuttgart
GERMANY
www.bosch-pt.com
1 609 92A 2NP (2015.03) AS / 231 EURO