Q: Where is the knob to adjust the vertical angle of the saw?

The adjustment button (21) for adjusting the tilt angle (vertical) of the GCM 254 D Professional is located on the body of the machine, near the base of the tool arm. It is a small rotary button that allows you to release the 0° angle in order to select other tilt angles. It should be turned only slightly. To set a custom tilt angle, proceed as follows: pull the locking button (13) upwards to release the lock. Turn the adjustment button (21) slightly to the left to disengage the 0° angle. Then, tilt the tool arm to the desired angle using the handle (5) . Check your exact angle by reading the angle indicator (55) against the graduated scale (56) . Finally, push the locking button (13) downwards to lock the selected angle. The saw offers four standard tilt angles that are easily accessible: 0°, 22.5°, 33.9° and 45° (to the left or to the right). To use these standard stops (41), first remove the adjustable stop on your side (19), then rotate the standard stop (41) corresponding to the desired angle until it clicks into place at the marking arrow. Then pull the locking button (13) upwards and let the tool arm tilt to the stop on your side, or use the handle (5) to bring it to the stop on the other side. The total tilt angle can be adjusted from 45° to the left to 45° to the right. The angle indicator (55) and the graduated scale (56) continuously display the current angle, allowing for very precise adjustments. After each adjustment, always check that the saw blade does not touch the adjustable stops or clamps before starting to saw.

Q: How to adjust the cutting angle on the BOSCH PKS 46 saw?

To adjust the cutting angle on your BOSCH PKS 46 , follow these simple steps. The device is designed for straight and bevel cuts up to 45°. Steps: Ensure that the saw is unplugged from the electrical outlet before making any adjustments. Loosen the wing screw(s) (5) that hold the cutting angle. These screws allow for angle pre-selection. Gently tilt the device to the side until you reach the desired angle. The saw tilts relative to the base plate. Use the cutting angle scale (13) engraved on the housing to read the exact angle. Two main markers guide you: the 0° marking for square cuts (perpendicular) and the 45° marking for bevel cuts. Once the angle is correctly set, securely tighten the wing screw(s) (5) . Important points: For high-precision cuts, check the alignment of the blade against the markers before starting the cut. In 45° bevel cuts, note that the cutting depth is less than indicated on the depth scale (you can cut up to 30 mm at an angle compared to 46 mm for square cuts). A test cut is recommended to validate your settings before making a final cut.

Question 1

Where is the knob to adjust the vertical angle of the saw?

Accepted Answer

The adjustment button (21) for adjusting the tilt angle (vertical) of the GCM 254 D Professional is located on the body of the machine, near the base of the tool arm. It is a small rotary button that allows you to release the 0° angle in order to select other tilt angles. It should be turned only slightly.

To set a custom tilt angle, proceed as follows: pull the locking button (13) upwards to release the lock. Turn the adjustment button (21) slightly to the left to disengage the 0° angle. Then, tilt the tool arm to the desired angle using the handle (5). Check your exact angle by reading the angle indicator (55) against the graduated scale (56). Finally, push the locking button (13) downwards to lock the selected angle.

The saw offers four standard tilt angles that are easily accessible: 0°, 22.5°, 33.9° and 45° (to the left or to the right). To use these standard stops (41), first remove the adjustable stop on your side (19), then rotate the standard stop (41) corresponding to the desired angle until it clicks into place at the marking arrow. Then pull the locking button (13) upwards and let the tool arm tilt to the stop on your side, or use the handle (5) to bring it to the stop on the other side.

The total tilt angle can be adjusted from 45° to the left to 45° to the right. The angle indicator (55) and the graduated scale (56) continuously display the current angle, allowing for very precise adjustments. After each adjustment, always check that the saw blade does not touch the adjustable stops or clamps before starting to saw.

Question 2

How to adjust the cutting depth on the BOSCH GCM 800 SJ saw?

Accepted Answer

The cutting depth on the BOSCH GCM 800 SJ saw is not an adjustable parameter. It is automatically determined by the thickness of the piece you place under the blade. The saw is capable of cutting up to a maximum depth of 70 mm at neutral angles (0°/0°).

The actual cutting depth depends on:

The thickness of your material: The thicker the piece, the greater the cutting depth will be, up to a maximum of 70 mm.
The bevel and miter angle: When you set cutting angles (bevel or miter), the maximum available depth decreases depending on the chosen angle.

To prepare your BOSCH GCM 800 SJ saw before cutting, ensure that your material is properly positioned and held firmly against the guides (barrier 6 and 21) according to the permitted dimensions (maximum thickness of 70 mm). There is no lever or knob to adjust the cutting depth: this parameter adjusts automatically based on your piece.

If you need a cutting depth greater than what your current piece allows, you will need to use a thicker material or consider a different cutting approach suited to your dimensional constraints.

Question 3

Which replacement blades are compatible with the BOSCH PROFESSIONAL GSA 18V-LIC saw?

Accepted Answer

The BOSCH PROFESSIONAL GSA 18V-LIC saw is compatible with several types of replacement blades suitable for different materials and uses. Here are the main categories of blades you can use:

Compatible blade types

Wood blades: Designed for fast and precise cuts in soft or hard wood. They typically have wide teeth for effective sawing.
Metal blades: Suitable for cutting metals, these blades have fine teeth and are made of hardened steel or bi-metal for better durability.
Plastic blades: Specifically designed to cut various types of plastics cleanly without splintering.
Bi-metal blades: These blades combine flexibility and durability, ideal for cutting multiple materials, including wood with nails or light metals.

Tips for choosing your blades

Always check that the blade is compatible with the mounting system of the GSA 18V-LIC (SDS system or other depending on the model).
Choose the blade based on the material to be cut to optimize cutting quality and blade lifespan.
Prefer blades from recognized brands or those recommended by BOSCH to ensure safety and performance.

In summary, you can use a wide range of replacement blades suitable for your BOSCH PROFESSIONAL GSA 18V-LIC saw, provided they are compatible with its mounting system and suitable for the material to be cut.

Question 4

What does a flashing light on the BOSCH GST 12V70 Professional saw mean and how can I fix it?

Accepted Answer

A flashing light on your BOSCH GST 12V70 Professional saw may indicate several situations related to the device's status. Here are the main causes and solutions to check:

1. Low battery

The flashing light may signal that the battery is nearly discharged. In this case:

Remove the battery from the saw.
Fully recharge it with the appropriate charger.
Reinsert the battery once charging is complete.

2. Tool overheating

A flashing light may also indicate that the saw is overheating. To avoid damaging the device:

Turn off the saw and unplug it if possible.
Allow it to cool down for at least 15 to 30 minutes.
Resume use once the device has cooled down.

3. Technical issue or internal defect

If the light continues to flash after checking the battery and temperature, it may indicate a technical problem. In this case:

Ensure the battery is properly inserted and the contacts are clean.
Try using another compatible battery if possible.
If the problem persists, contact Bosch customer service or a qualified technician for diagnosis and repair.

By following these steps, you will be able to identify the cause of the flashing light and take appropriate action to ensure optimal operation of your BOSCH GST 12V70 Professional saw.

Question 5

What is the purpose of the front dial on the BOSCH PKS 46 saw?

Accepted Answer

The front dial (element 17), called the cutting depth scale, allows you to precisely adjust the depth to which the blade will penetrate the material on the BOSCH PKS 46 circular saw. This element is directly associated with the clamping lever (element 18) which must be loosened before any adjustment.

To use the front dial and set the cutting depth, follow these steps:

Step 1: Loosen the clamping lever (element 18) located on the side of the saw
Step 2: Raise or lower the motor relative to the base plate to adjust to the desired depth
Step 3: Refer to the front dial scale to precisely position the desired depth
Step 4: Tighten the clamping lever to lock the adjustment in place

Some essential rules to remember for optimizing your cut: by raising the saw, you decrease the cutting depth, while lowering it increases the depth. The maximum cutting depth at 90° is 46 mm on this model. The maximum depth at 45° is 30 mm.

Important quality tip: to achieve an optimal and safe cut, the saw blade should only protrude from the material by a maximum of 3 mm. This limitation significantly improves the quality of the cut and reduces the risks of kickback or snagging of the material.

If you need to readjust the clamping force of the lever after installation, it can be done by slightly unscrewing the lever and moving it at least 30° clockwise or counterclockwise depending on the desired adjustment.

Question 6

How do I loosen the locking mechanism on the BOSCH PKS 46 saw?

Accepted Answer

The BOSCH PKS 46 circular saw has two main locking mechanisms: one for the cutting depth and one for the cutting angle. Both use butterfly screws that can be easily loosened by hand, without tools.

To loosen the cutting depth lock: Locate the butterfly screw/clamping lever number 18, located on the side of the base. Simply loosen it by turning it counterclockwise with your hand. You can then raise or lower the saw's base to adjust the depth according to graduation 17 to the desired value (maximum 46 mm at 90° cut or 30 mm at 45° cut). Once the adjustment is complete, tighten the butterfly screw/leverage 18 by turning it clockwise to maintain the depth.

To loosen the cutting angle lock: Locate the butterfly screw(s) number 5 on the base. Loosen it(them) by turning it(them) by hand. Then tilt the device on its side until the desired cutting angle is aligned with graduation 13 (adjustable from 0° to 45°). Tighten the butterfly screw(s) 5 to lock the chosen angle.

Practical tip: If the depth lock resists manual manipulation, it is possible to readjust the clamping force of the lever by slightly unscrewing and then tightening the butterfly screw 18 to adapt the tension to your preferences. Ensure that both mechanisms are securely locked before using the saw, to guarantee your safety and the accuracy of cuts.

Question 7

How to adjust the cutting angle on the BOSCH PKS 46 saw?

Accepted Answer

To adjust the cutting angle on your BOSCH PKS 46, follow these simple steps. The device is designed for straight and bevel cuts up to 45°.

Steps:

Ensure that the saw is unplugged from the electrical outlet before making any adjustments.
Loosen the wing screw(s) (5) that hold the cutting angle. These screws allow for angle pre-selection.
Gently tilt the device to the side until you reach the desired angle. The saw tilts relative to the base plate.
Use the cutting angle scale (13) engraved on the housing to read the exact angle. Two main markers guide you: the 0° marking for square cuts (perpendicular) and the 45° marking for bevel cuts.
Once the angle is correctly set, securely tighten the wing screw(s) (5).

Important points: For high-precision cuts, check the alignment of the blade against the markers before starting the cut. In 45° bevel cuts, note that the cutting depth is less than indicated on the depth scale (you can cut up to 30 mm at an angle compared to 46 mm for square cuts). A test cut is recommended to validate your settings before making a final cut.

Question 8

How to resolve the issue of the pendulum function not working on the BOSCH GST 160 BCE saw?

Accepted Answer

If the pendulum function (orbital movement) of your BOSCH GST 160 BCE saw is not working, several causes may be behind the problem. This saw has a 4-position pendulum movement adjustment, accessible via a selection knob located on the side of the device. Here’s how to diagnose and resolve the issue:

Check the pendulum movement setting: Locate the pendulum movement adjustment knob on the body of the saw. This knob typically has 4 positions: position 0 (straight cuts without orbital movement), position 1 (light cuts/tight curves), position 2 (versatile cuts), and position 3 (aggressive/fast cuts in wood). Ensure that the knob is securely clicked into the desired position and is not in a transitional position between two notches. If it is misaligned, the pendulum movement may not function correctly.

Clean the mechanism: Dust, chips, and sawdust can block the internal mechanism of the pendulum movement. Unplug the tool, then use a soft brush or a dry cloth to clean the areas around the adjustment knob and the blade holder. Also, blow into the ventilation openings to clear accumulated dust. Regularly wipe the roller blade guide, which can also get dirty and affect overall operation.

Check the saw blade: A poorly mounted, bent, or damaged blade can prevent the pendulum movement from functioning properly. Ensure that the blade is securely locked in the blade holder (use the tool-free system of the GST 160 BCE). Visually inspect the blade for any deformation or breakage. If the blade is damaged, replace it before proceeding.

Check for obstructions: Ensure that no object, no bent blade, or material is blocking the movement of the blade during its oscillation. The pendulum movement can be intentionally reduced depending on the application: reduce it to position 0 or 1 if you are cutting metal or tight curves, as recommended in the manual. A movement that is too weak may give the impression that the function is not working, while it is actually functioning in reduced mode.

Lubricate the blade guide: Regularly spray the adjustment knob and the blade holder with a penetrating lubricant (like WD-40) and apply a drop of oil on the roller blade guide to ensure the smoothness of the mechanism. A lack of lubrication can hinder the orbital movement.

Perform a test: After these checks and cleanings, plug in the tool, set the knob to position 3 (maximum movement), and turn on the saw without material. You should observe a distinct forward/backward movement of the blade (in addition to the usual vertical movement). If this orbital movement remains invisible in position 3, the internal mechanism is likely defective.

If despite these steps the pendulum movement still does not work in position 3, the internal mechanism of the saw is defective and requires professional repair. Contact Bosch Customer Service (tel. 0811 360122 in France) or an authorized dealer for a complete diagnosis and warranty repair if applicable.

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