BOSCH GST 90 E Professional Jigsaw Instruction Manual

: October 30, 2023
: Bosch

BOSCH GST 90 E Professional Jigsaw

Product Information

The Bosch GST Professional 90 E | 90 BE is an electric power tool used for cutting wood, aluminum, metal, and particleboard. It has a 10-digit part number (Sachnummer) P1 n0 and comes with various technical specifications, which are available on page 166 of the user manual. The tool is designed to be used by qualified personnel and comes with several safety features to prevent accidents.

Product Usage Instructions

Before using the Bosch GST Professional 90 E | 90 BE, ensure that you have read and understood all the safety instructions and guidelines provided in the user manual.
The tool can be used both in dry and wet conditions. However, if you must use it in a wet environment, it is recommended to use a residual current device (RCD) to prevent electrical shocks.
Always use original replacement parts when repairing the power tool to ensure that its safety features are maintained.
Before performing any maintenance or repair work on the tool, unplug it from the power source.
Adjust the settings of the power tool according to the application you are working on. For instance, reduce the stroke rate and oscillation when cutting metal or working on tight curves.
When not in use, switch off the power tool to save energy.
The power tool comes with several symbols that indicate different meanings. It is essential to understand the symbols and their meanings before using the tool to avoid accidents.

General Power Tool Safety Warnings

WARNING Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or seri- ous 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 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 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. 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 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, clothing and gloves 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.

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 Jigsaws

Hold power tool by insulated gripping surfaces, when performing an operation where the cutting accessory may contact hidden wiring or its own cord. Cutting accessory contacting a “live” wire may make exposed metal parts of the power tool “live” and could give the operator an electric shock.

Additional Safety and Working Instructions

Keep hands away from the sawing range. Do not reach under the workpiece. Contact with the saw blade can lead to injuries.
Apply the machine to the workpiece only when switched on. Otherwise there is danger of kickback when the cutting tool jams in the workpiece.
Pay attention that the base plate rests securely on the material while sawing. A jammed saw blade can break or lead to kickback.
When the cut is completed, switch off the machine and then pull the saw blade out of the cut only after it has come to a standstill. In this manner, you can avoid kickback and can place down the machine securely.
Use only undamaged saw blades that are in perfect condition. Bent or dull saw blades can break, negatively influence the cut, or lead to kickback.
Do not brake the saw blade to a stop by applying side pressure after switching off. The saw blade can be damaged, break or cause kickback.
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 explosion. Penetrating a water line causes property damage or may cause an electric shock.
Secure the workpiece. A workpiece clamped with clamping devices or in a vice is held more securely than by hand.
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.
Before any work on the machine itself, pull the mains plug.
The saw blade should not be longer than required for the intended cut. Use a narrow saw blade when sawing tight curves.
Check the tight seating of the saw blade. A loose saw blade can fall out and lead to injuries.
When ejecting the saw blade, hold the machine in such a manner that no persons or animals can be injured by the ejected saw blade.
Specks of dust from materials such as lead-containing coatings, some wood types, minerals and metal can be harmful to one’s health and cause allergic reactions, lead to respiratory infections and/or cancer. 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. Dusts can easily ignite.
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.
When not using the power tool, switch it off in order to save energy.
The contact protector attached to the casing (see figure 14, page 175) prevents accidental touching of the saw blade during the working procedure and may not be removed.
Before sawing in wood, particle boards, building materials etc., check for foreign objects, such as nails, screws, etc. and remove them as required.
Plunge cuts may only be applied to soft materials, such as wood, gypsum board, etc. For plunge cuts, use only short saw blades.
The splinter guard can prevent fraying of the surface while sawing wood. Do not use the splinter guard for mitre cuts.
Adapt the settings of your power tool to the respective application. For example, reduce the stroke rate and orbital action when cutting metal or for tight curved cuts.
When working small or thin workpieces, always use a sturdy support or a saw table (accessory).
In extreme conditions, always use dust extraction as far as possible. Blow out ventilation slots frequently and install a residual current device (RCD). When working metals, conductive dust can settle in the interior of the power tool. The total insulation of the power tool can be impaired.
Products sold in GB only: Your product is fitted with an 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 a mains 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.

Symbols

The following symbols are important for reading and understanding the operating instructions. Please take note of the symbols and their meaning. The correct interpretation of the symbols will help you to use the machine in a better and safer manner.

BOSCH-GST-90-E-Professional-Jigsaw-fig-15

Delivery Scope

Jigsaw. Splinter guard, parallel guide, application tools and other accessories shown or described are not part of the standard delivery scope. A complete overview of accessories can be found in our accessories program.

Intended Use

The machine is intended for making separating cuts and cut-outs in wood, plastic, metal, ceramic plates and rubber while resting firmly on the workpiece. It is suitable for straight and curved cuts with mitre angles to 45°. The saw blade recom-mendations are to be observed.

Technical Data

The technical data of the machine are listed in the table on page 166. 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.

Declaration of Conformity

We declare under our sole responsibility that the product described under “Technical Data” is in conformity with the following standards or standardization documents: EN 60745 according to the provisions of the directives 2011/65/EU, 2004/108/EC, 2006/42/EC. Technical file (2006/42/EC) at: Robert Bosch GmbH, PT/ETM9, D-70745 Leinfelden-Echterdingen

Dr. Egbert Schneider
Senior Vice President
Engineering
Helmut Heinzelmann
Head of Product Certification
PT/ETM9

Robert Bosch GmbH, Power Tools Division D-70745 Leinfelden-Echterdingen Leinfelden, 23.08.2012

Noise/Vibration Information

The measured values of the machine are listed in the table on page 166. Noise and vibrational values (vector sum of three directions) determined according to EN 60745. The vibration emission level given in this information sheet hasbeen measured in accordance with a standardised 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 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: maintain the tool and the accessories, keep hands warm, organise work patterns.

Mounting and Operation

The following table indicates the action objectives for mounting and operation of the power tool. The instructions for each action objective are shown aside. Depending on the type of application, various instruction combinations are required. Observe the safety instructions.

BOSCH-GST-90-E-Professional-Jigsaw-fig-17 BOSCH-
GST-90-E-Professional-Jigsaw-fig-18

Maintenance and Cleaning

For safe and proper working, always keep the machine and the ventilation slots as well as the tool holder clean. If the replacement of the supply cord is necessary, this has to be done by Bosch or an authorized Bosch service agent in or-der to avoid a safety hazard. Clean the saw blade holder regularly. For this, remove the saw blade from the machine and lightly tap out the machine on a level surface. Check the guide roller regularly. If worn, it must be replaced through an authorised Bosch after-sales service agent. Lubricate the guide roller occasionally with a drop of oil (see figure 15, page 176).

After-sales Service and Customer Assistance

Our after-sales service responds to your questions concerning the maintenance and repair of your product as well as spare parts. Exploded views and information on spare parts can al-so be found under: www.bosch-pt.com Our customer service representatives can answer your questions concerning possible applications and adjustments of products and accessories. In all correspondence and spare parts order, please always include the 10-digit article number given on the type plate of the machine.

Great Britain

Robert Bosch Ltd. (B.S.C.)
P.O. Box 98
Broadwater Park
North Orbital Road
Denham
Uxbridge
UB 9 5HJ
Tel. Service: +44 (0844) 736 0109
Fax: +44 (0844) 736 0146
E-Mail: boschservicecentre@bosch.com

Ireland

Origo Ltd.
Unit 23 Magna Drive
Magna Business Park
City West
Dublin 24
Tel. Service: +353 (01) 4 66 67 00
Fax: +353 (01) 4 66 68 88

Australia, New Zealand and Pacific Islands

Robert Bosch Australia Pty. Ltd.
Power Tools
Locked Bag 66
Clayton South VIC 3169
Customer Contact Center
Inside Australia:
Phone: +61 (01300) 307 044
Fax: +61 (01300) 307 045
Inside New Zealand:
Phone: +64 (0800) 543 353
Fax: +64 (0800) 428 570
Outside AU and NZ:
Phone: +61 (03) 9541 5555
www.bosch.com.au

Republic of South Africa Customer service

Hotline: +27 (011) 6 51 96 00

Gauteng – BSC Service Centre

35 Roper Street, New Centre Johannesburg
Tel.: +27 (011) 4 93 93 75
Fax: +27 (011) 4 93 01 26
E-Mail: bsctools@icon.co.za

KZN – BSC Service Centre

Unit E, Almar Centre
143 Crompton Street
Pinetown
Tel.: +27 (031) 7 01 21 20
Fax: +27 (031) 7 01 24 46
E-Mail: bsc.dur@za.bosch.com

Western Cape – BSC Service Centre

Democracy Way, Prosperity Park Milnerton
Tel.: +27 (021) 5 51 25 77
Fax: +27 (021) 5 51 32 23
E-Mail: bsc@zsd.co.za

Bosch Headquarters

Midrand, Gauteng
Tel.: +27 (011) 6 51 96 00
Fax: +27 (011) 6 51 98 80
E-Mail: rbsa-hq.pts@za.bosch.com

People’s Republic of China China Mainland

Bosch Power Tools (China) Co., Ltd.
567, Bin Kang Road
Bin Jiang District 310052
Hangzhou, P.R.China
Service Hotline: 400 826 8484
Fax: +86 571 8777 4502
E-Mail: contact.ptcn@cn.bosch.com
www.bosch-pt.com.cn

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 2002/96/EC for Waste Electrical and Elec- tronic Equipment and its implementation into national right, power tools that are no longer usable must be collected separately and disposed of in an environmentally cor- rect manner.

Subject to change without notice.