MAINTENANCE

BRUSH REPLACEMENT

See Figure 50.

The saw has externally accessible brush assemblies that should be periodically checked for wear.

Proceed as follows when replacement is required:

Unplug the saw.

WARNING:

Failure to unplug the saw could result in accidental starting causing serious injury.

Remove brush cap with a screwdriver. Brush assembly is spring loaded and will pop out when you remove brush cap.

Remove brush assembly.

Check for wear. Replace both brushes when either has less than 1/4 in. length of carbon remaining. Do not replace one side without replacing the other.

Reassemble using new brush assemblies. Make sure curvature of brush matches curvature of motor and that brush moves freely in brush tube.

Make sure brush cap is oriented correctly (straight) and replace.

Tighten brush cap securely. Do not overtighten.

MOTOR BELT TENSION

See Figure 51.

The motor belt tension was adjusted at the factory but should still be checked periodically.

To check belt tension:

Using a phillips screwdriver, remove the screws holding the belt cover. Lift off the cover.

Check belt tension by squeezing the belt. Using light pressure, the belt should deflect approximately 1/4 in.

To adjust belt tension:

Loosen, but don’t remove, the six motor mount screws.

Increase the belt tension by turning the adjusting socket head set screw clockwise. Decrease the belt tension by turning the set screw counterclockwise.

NOTE: Excessive belt tension will cause the motor to fail prematurely.

Securely tighten the six motor mount screws.

Replace the belt cover and tighten securely using screws.

BRUSH

 

BRUSH

CAP

BRUSH

ASSEMBLY

 

 

 

ASSEMBLY

 

BRUSH

CAP

Fig. 50

1/4 in.

BELT COVER

BELT

MOTOR MOUNT

BELT

SCREWS

 

ADJUSTING

SOCKET HEAD

SCREW

Fig. 51

36

Page 36
Image 36
RIDGID MS1290LZ1 manual Brush Replacement, Motor Belt Tension, Brush CAP Belt Cover, Adjusting Socket Head Screw

MS1290LZ1 specifications

The RIDGID MS1290LZ1 is a powerful miter saw designed for both professional tradespeople and avid DIYers, providing exceptional versatility, precision, and ease of use. With its robust features and innovative technologies, this miter saw stands out in the crowded market of power tools.

One of the standout features of the MS1290LZ1 is its powerful 15-amp motor, which generates an impressive 4,000 RPM. This high-speed operation allows for quick and clean cuts through various materials, including hardwood, softwood, and composites. Capable of making both bevel and miter cuts, the saw offers a cutting capacity of up to 12 inches, making it suitable for a range of applications, from framing to crown molding.

The MS1290LZ1 is equipped with a dual bevel system, allowing users to make beveled cuts to the left and right with ease. This means that operators can achieve precise angles without the need to flip or reposition their workpieces, significantly enhancing efficiency. The saw features a generous cutting capacity of 0 to 50 degrees for miter cuts on both sides, enabling a wide variety of projects with intricate angles.

Another notable characteristic of this miter saw is its advanced laser guide system. This technology projects an accurate line of cut directly onto the material, ensuring maximum precision. The adjustable laser can be aligned with the blade for improved accuracy, reducing the likelihood of errors. Additionally, the MS1290LZ1 includes a built-in work light that illuminates the cutting area, providing visibility in low-light environments.

The saw's ergonomic design enhances user comfort during operation. Equipped with a sturdy and lightweight chassis, the MS1290LZ1 is easy to transport, making it an excellent choice for on-site jobs. The handle features a comfortable grip, allowing for extended use without causing fatigue. Moreover, the saw includes a dust collection port that helps maintain a clean workspace by minimizing sawdust and debris.

In conclusion, the RIDGID MS1290LZ1 miter saw combines power, precision, and user-friendly features, making it an ideal tool for both novice and experienced users. With its powerful motor, dual bevel capabilities, advanced laser guide, and ergonomic design, this miter saw offers the versatility and performance needed to tackle any cutting task with confidence. Whether you're framing a house, crafting custom furniture, or working on detailed trim, the MS1290LZ1 is equipped to handle the job efficiently and accurately.