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General Power Tool Safety Warnings
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
Electrical safety
Personal safety
Power tool use and care
Service
Safety instructions for circular saws
Cutting procedures
Kickback causes and related warnings
Kickback is the result of saw misuse and/or incorrect operating procedures or conditions and can be avoided by taking proper precautions as given below.
Lower guard function
Additional safety warnings
Products sold in GB only:
Your product is fitted with an BS 1363/A approved electric plug with internal fuse (ASTA approved to BS 1362).
If the plug is not suitable for your socket outlets, it should be cut off and an appropriate plug fitted in its place by an authorised 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.
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.
The power tool is intended for making straight cuts with and against the grain and mitre/bevel cuts in wood while resting firmly against the workpiece. With suitable saw blades, you can also saw thin-walled non-ferrous metals, such as profiles.
The power tool must not be used to cut ferrous metals.
A) Accessories shown or described are not included with the product as standard. You can find the complete selection of accessories in our accessories range.
Hand-held circular saw | PKS 55 | PKS 55 A PKS 55-2 A | PKS 66 A PKS 66 AF A) PKS 66-2 AF A) | |
Article number | 603 E00 0.. | 603 E01 0.. | 603 E02 0.. | |
Rated power input | W | 1200 | 1200 | 1600 |
No-load speed Max. cutting depth
| min-1 | 5600 | 5600 | 5000 |
mm | 55 38 | 55 38 | 66 48 | |
Spindle lock | ● | ● | ● | |
CutControl | – | ● | ● | |
Dust/chip box | – | ● | ● | |
Base plate dimensions | mm | x 153 | x 153 | x 160 |
Max. saw blade diameter | mm | 160 | 160 | 190 |
Min. saw blade diameter | mm | 150 | 150 | 184 |
Max. base blade thickness | mm | 1.8 | 1.8 | 1.8 |
Locating bore | mm | 20 | 20 | 30 |
Weight according to EPTA-Procedure 01:2014 | kg | 3.9 | 3.9 | 5.4 |
Protection class | ![]() | ![]() | ![]() |
A)PKS 66 AF/PKS 66-2 AF with guide rail
The specifications apply to a rated voltage [U] of 230 V. These specifications may vary at different voltages and in country-specific models.
Turn-on transients cause brief drops in voltage. Other tools may be adversely affected by these if the conditions in the electricity supply are unfavourable. Malfunctions are not expected if the impedances in the electricity supply are below 0.36 ohms.
Noise emission values determined according to EN 62841-2-5.
Typically, the A-weighted noise level of the power tool is:
PKS 55:
Sound pressure level 92 dB(A); sound power level 103 dB(A).
Uncertainty K = 3 dB.
PKS 66:
Sound pressure level 93 dB(A); sound power level 104 dB(A).
Uncertainty K = 3 dB.
Wear hearing protection
Total vibration values ah (triax vector sum) and uncertainty K determined according to EN 62841-2-5:
Sawing wood: ah = 4.0 m/s2, K = 1.5 m/s2
Sawing metal: ah = 3.0 m/s2, K = 1.5 m/s2
The vibration level and noise emission value given in these instructions have been measured in accordance with a standardised measuring procedure and may be used to compare power tools. They may also be used for a preliminary estimation of vibration and noise emissions.
The stated vibration level and noise emission value represent the main applications of the power tool. However, if the power tool is used for other applications, with different application tools or is poorly maintained, the vibration level and noise emission value may differ. This may significantly increase the vibration and noise emissions over the total working period.
To estimate vibration and noise emissions accurately, the times when the tool is switched off or when it is running but not actually being used should also be taken into account. This may significantly reduce vibration and noise emissions over the total working period.
Implement additional safety measures to protect the operator from the effects of vibration, such as servicing the power tool and application tools, keeping their hands warm, and organising workflows correctly.
Inserting/changing the circular saw blade
Selecting the saw blade
You will find an overview of recommended saw blades at the end of these operating instructions.
Removing the saw blade (see figure A)
To change tools, we recommend that you place the power tool down on the front side of the motor housing.
Do not press the spindle lock button (4) while the saw spindle is moving. The power tool may become damaged if you do this.
Fitting the saw blade (see figure A)
To change tools, we recommend that you place the power tool down on the front side of the motor housing.
Dust/chip extraction (see figures B–E)
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.
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.
Note: Always use the deflection tube (24) or the dust/chip box (25) when sawing to avoid being hit by flying chips.
The deflection tube (24) can be used either with or without the dust/chip extractor attached. Turn the deflection tube away from you so that you will not be hit by the chips (position will vary depending on the application) and firmly connect it to the chip ejector (16).
External dust extraction (see figure B)
Connect an extraction hose (23) (accessory) to the chip ejector (16). Connect the extraction hose (23) to a dust extractor (accessory). You will find an overview of connecting to various dust extractors at the end of these operating instructions.
The power tool can be directly connected to the socket of a Bosch all-purpose dust extractor with remote starter. This dust extractor is started up automatically when the power tool is switched on.
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.
Self-generated dust extraction (see figures C – E)
For smaller jobs, the dust/chip box (25) can be used with the slider (26) closed. For larger jobs, you should leave the slider open so that the chips can fall out. Insert the dust/chip box (25) firmly into the chip ejector (16).
Empty the dust/chip box (25) at regular intervals to maintain efficiency.
To empty the dust/chip box (25), pull it out of the chip ejector (16). Push the slider (26) upwards, turn the dust/ chip box (25) onto its side and empty it.
Clean the connector of the dust/chip box (25) before inserting it again.
Operating modes
Setting the cutting depth (see figure F)
Loosen the clamping lever (27). For a smaller cutting depth, pull the saw away from the base plate (12); for a larger cutting depth, push the saw towards the base plate (12). Set the required cutting depth on the scale. Retighten the clamping lever (27).
Setting the mitre/bevel angle
Loosen the wing bolts (7) and (14). Swivel the saw to the side. Set the required mitre/bevel angle on the scale (5). Retighten the wing bolts (7) and (14).
Note: When making mitre cuts, the cutting depth is less than the value shown on the cutting depth scale (28).
Cut marks (see figure G)
(PKS 55 A/PKS 55-2 A/PKS 66 A/PKS 66 AF/ PKS 66-2 AF)
The viewing window for "CutControl" (9), which folds out to the front, allows the circular saw to be guided precisely along the cutting line that is applied to the workpiece. The "CutControl" viewing window (9) has markings for rightangled cuts and 45° cuts.
The 0° cut mark (30) indicates the position of the saw blade when making a right-angled cut. The 45° cut mark (29) indicates the position of the saw blade when making a 45° cut.
For a precise cut, place the circular saw against the workpiece as shown in the figure. We recommend making a test cut.
Cut marks (PKS 55)
The 0° cut mark (30) indicates the position of the saw blade when making a right-angled cut. The 45° cut mark (29) indicates the position of the saw blade when making a 45° cut.
For a precise cut, place the circular saw against the workpiece as shown in the figure. We recommend making a test cut.
Start-up
Switching On/Off
To start the power tool, first press the lock-off switch (1), then press and hold the on/off switch (2). To switch off the power tool, release the on/off switch (2).
Note: For safety reasons, the on/off switch (2) cannot be locked; it must remain pressed during the entire operation.
Practical advice
Protect saw blades against shock and impact. Guide the power tool evenly, pushing it gently in the cutting direction. Applying too much pressure to the power tool when moving it in the cutting direction significantly reduces the service life of the application tools and can damage the power tool.
The sawing performance and the quality of the cut essentially depend on the condition and the tooth shape of the saw blade. This is why you should only use sharp saw blades that are suitable for the material being machined.
Sawing wood
Choosing the right saw blade depends on the wood type, wood quality and whether cuts with or against the grain are required.
Making cuts in spruce with the grain produces long, spiralshaped chips. This can lead to the chip ejector (16) becoming clogged.
Beech and oak dust is especially detrimental to health. Therefore, work only with dust extraction.
Sawing Non-ferrous Metal
Note: Only use a sharp saw blade that is suitable for non-ferrous metal. This guarantees a clean cut and will prevent the saw blade from jamming.
Switch on the power tool and bring it into contact with the workpiece, sawing it carefully. Then continue working with less feed and without interruption.
For profiles, always begin the cut on the narrow side; for Ushaped profiles, never begin the cut on the open side. Support long profiles to prevent the saw blade jamming and the power tool kicking back.
Sawing with the parallel guide (see figure H)
The parallel guide (10) allows you to make precise cuts along the edge of a workpiece and cut strips with the same dimensions.
Loosen the wing bolt (8) and slide the scale of the parallel guide (10) through the guide in the base plate (12). Set the desired cutting width as a scale value at the corresponding (30) or (29) cut mark (see the "Cut marks" section). Retighten the wing bolt (8).
Sawing with the guide rail (see figures I–K)
You can use the guide rail (31) to make straight cuts.
The adhesive layer prevents the guide rail from slipping and preserves the surface of the workpiece.
The guide rail (31) can be extended. To do this, turn the guide rail (31) 180° and fit both guide rails (31) together. Press the button (32) to lock them in place. To detach them, press the button (32) on the other side and pull the guide rails (31) apart.
The guide rail (31) has two marks on its upper side. Use the side with the "90°" mark for right-angled cuts, and the side with the "45°" mark for all other mitre/bevel cuts.
The rubber lip on the guide rail provides an anti-splinter guard for 90° and 45° cuts that prevents the surface of wooden materials from splintering when sawn.
The rubber lip adapts to your circular saw during the first cut, when some of it is sawn off.
Note: The guide rail (31) must be always be flush with the side of the workpiece being sawn into and must not protrude.
If the guide rail (31) does protrude over the end of the workpiece, do not rest the circular saw on the guide rail (31) without holding on tightly to the circular saw. The guide rail (31) is made of plastic and cannot support the weight of the circular saw.
Fasten the guide rail (31) to the workpiece using the special screw clamps (33). Make sure that the curvature on the inside of the screw clamp (33) fits in the corresponding recess on the guide rail (31).
Switch on the power tool and push it gently in the cutting direction, guiding it evenly.
Maintenance and cleaning
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 (11) 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. Remove dust and chips by blowing out with compressed air or using a brush.
Non-coated saw blades can be protected against corrosion using a thin layer of acid-free oil. Remove the oil again before sawing as failure to do so will stain the wood.
Resin or glue residue on the saw blade has a detrimental effect on the quality of the cut. You should therefore clean saw blades straight after use.
Our after-sales service can answer questions concerning product maintenance and repair, as well as spare parts. You can find exploded 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 type plate of the product.
Great Britain
Robert Bosch Ltd. (B.S.C.)
P.O. Box 98
Broadwater Park
North Orbital Road
Denham Uxbridge
UB 9 5HJ
At www.bosch-pt.co.uk you can order spare parts or arrange the collection of a product in need of servicing or repair.
Tel. Service: (0344) 7360109
E-Mail: boschservicecentre@bosch.com
Ireland
Origo Ltd.
Unit 23 Magna Drive
Magna Business Park
City West
Dublin 24
Tel. Service: (01) 4666700
Fax: (01) 4666888
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: (01300) 307044
Fax: (01300) 307045
Inside New Zealand:
Phone: (0800) 543353 Fax: (0800) 428570
Outside AU and NZ:
Phone: +61 3 95415555
www.bosch-pt.com.au
www.bosch-pt.co.nz
Republic of South Africa
Customer service
Hotline: (011) 6519600
Gauteng – BSC Service Centre
35 Roper Street, New Centre
Johannesburg
Tel.: (011) 4939375
Fax: (011) 4930126
E-mail: bsctools@icon.co.za
Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.
Download Bosch PKS 55 / 55 A / 55-2 A / 66 A / 66 AF / 66-2 AF Manual
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