26.Wear a dust mask and hearing protection when use the tool.

SAVE THESE INSTRUCTIONS.

WARNING:

MISUSE or failure to follow the safety rules stated in this instruction manual may cause serious personal injury.

OPERATING INSTRUCTIONS

Removing or installing saw blade

The following blade can be used with this tool.

Model

Max. dia.

Min. dia.

Blade thickness

Kerf

 

 

 

 

 

5603R

165 mm

150 mm

Less than 1.7 mm

More than 1.9 mm

 

 

 

 

 

5703R

190 mm

170 mm

Less than 1.7 mm

More than 1.9 mm

 

 

 

 

 

5903R

235 mm

210 mm

Less than 1.9 mm

More than 2.1 mm

 

 

 

 

 

5103R

270 mm

260 mm

Less than 1.8 mm

More than 2.2 mm

 

 

 

 

 

5143R

355 mm

350 mm

Less than 2.3 mm

More than 2.7 mm

 

 

 

 

 

The thickness of the riving knife is 1.8 mm for Models 5603R and 5703R or 2.0 mm for Model 5903R and 5103R or 2.5 mm for Model 5143R.

CAUTION:

Do not use saw blades which do not comply with the characteristics specified in these instructions.

Do not use saw blades the disc of which is thicker or the set of which is smaller than the thickness of the riv- ing knife.

To remove the saw blade, depress the shaft lock fully to prevent shaft rotation, then use the hex wrench to loosen the hex socket head bolt. (Fig. 1)

Now remove the outer flange, raise the safety cover as much as possible, and remove the saw blade. (Fig. 2)

Install the saw blade using the reverse of the removal procedure. Install the inner flange, saw blade, outer flange and hex socket head bolt, in that order. Be sure to secure the hex socket head bolt tightly with the shaft lock fully depressed. (Fig. 1 & 3)

CAUTION:

Make sure that the blade teeth point forward in the same direction as the tool rotation (the arrow on the blade should point in the same direction as the arrow on the tool).

Never depress the shaft lock while the saw is running.

Use only the Makita socket wrench to remove or install the blade.

Riving knife adjustment (Fig. 4)

Use the socket wrench to loosen the hex head socket bolt for the riving knife adjustment, then raise the safety cover. Move the riving knife up or down over the two pro- tuberances for settings indicated in the illustration, so as to obtain the proper clearance between the riving knife and saw blade.

CAUTION:

Ensure that the riving knife is adjusted such that: The dis- tance between the riving knife and the toothed rim of the saw blade is not more than 5 mm. The toothed rim does not extend more than 5 mm beyond the lower edge of the riving knife.

Adjusting depth of cut (Fig. 5)

Loosen the lever on the depth guide and move the base up or down. At a desired depth of cut, secure the base by tightening the lever.

CAUTION:

Use a shallow depth of cut when cutting thin workpiece for cleaner, safer cuts.

After adjusting the depth of cut, always tighten the lever securely.

Adjusting for bevel cuts (Fig. 6)

Loosen the thumb nuts in front and back, and tilt the tool to the desired angle for bevel cuts (0 – 45° ). Secure the thumb nuts tightly in front and back after making the adjustment.

Sighting (5603R, 5703R) (Fig. 7)

For straight cuts, align the right notch on the front of the base with your cutting line on the workpiece. For 45° bevel cuts, align the left notch with it.

Top guide (5903R, 5103R) (Fig. 8)

Align your sight line with either the 0° notch for straight cutting or the 45° notch for 45° angle cuts.

Top guide (5143R) (Fig. 9)

Align your sight line with either the 0° notch for straight cutting or the 30° notch for 30° angle cuts or the 45° notch for 45° angle cuts or the 60° notch for 60° angle cuts.

Switch action (Fig. 10)

To prevent the switch trigger from being accidentally pulled, a lock-off button is provided. To start the tool, depress the lock-off button and pull the switch trigger. Release the switch trigger to stop.

CAUTION:

Before plugging in the tool, always check to see that the switch trigger actuates properly and returns to the “OFF” position when released.

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Makita 5903R, 5703R, 5143R, 5103R instruction manual Operating Instructions

5143R, 5103R, 5703R, 5903R specifications

Makita, a renowned name in power tools, offers a range of high-performance electric saws that cater to professional and DIY enthusiasts alike. Among its standout models are the Makita 5903R, 5703R, 5103R, and 5143R. Each of these saws is designed with precision, power, and efficiency in mind, making them suitable for various cutting applications.

The Makita 5903R is a powerful circular saw that boasts a robust 15-amp motor, capable of delivering cutting speeds of up to 5,800 RPM. One of its main features is the ergonomically designed handle, which allows for easy maneuverability and reduced fatigue during prolonged use. The 5903R also includes a large, clear sightline for precise cutting, alongside a base that is engineered for stability. Its bevel capacity reaches up to 45 degrees, allowing for versatile cutting angles, making it ideal for framing and roofing projects.

Moving on to the Makita 5703R, this model is also equipped with a potent 15-amp motor and offers a more compact design without sacrificing power. The 5703R features a thin kerf blade that reduces friction and increases efficiency, leading to smoother cuts. Additionally, its lightweight build makes it easier to handle, particularly in tight spaces. The saw’s precision balanced design helps in minimizing user fatigue, making it a favorite for extended work sessions.

The Makita 5103R is known for its high cutting capacity and excellent cutting efficiency. This model features a 15-amp motor and a maximum cutting depth of 3-13/16 inches at 90 degrees, making it perfect for heavy-duty applications. The built-in electronic speed control maintains a constant speed under load, ensuring consistent performance. Moreover, the saw is equipped with a large in-line rear handle for added comfort and control.

Finally, the Makita 5143R is a superior circular saw designed specifically for heavy-duty applications. This model is powered by a 15-amp motor and boasts a remarkable cutting depth of 4-5/8 inches at 90 degrees, suitable for cutting through thick materials. It features a durable aluminum die-cast base for increased stability during cutting, and its advanced anti-kickback design enhances user safety. The 5143R also comes with a soft start feature, which gradually increases the speed for smoother operation.

In summary, the Makita 5903R, 5703R, 5103R, and 5143R models showcase a blend of power, precision, and user-oriented features. Whether you're framing, roofing, or tackling heavy-duty projects, these saws have the technology and characteristics to handle diverse cutting tasks efficiently.