Best Practices for Metabo Grinder Maintenance

Increase productivity when grinding and tuckpointing. Get familiar with your Metabo Grinder with these best practices.

Published on
March 12, 2024 at 12:14:40 PM PDT March 12, 2024 at 12:14:40 PM PDTth, March 12, 2024 at 12:14:40 PM PDT

As grinders are used in a tuckpointing or grinding application the effects of a dusty environment may hinder the performance and longevity of your high-quality Metabo angle grinder. Metabo is the industry standard in quality and they are constantly making improvements to stay the leader in the angle grinder industry. Even with the constant improvements that are made with each new series of tools, some issues may still be present.

Common Hand-Held Grinder Challenges

1) Sticking switch slides

2) Premature wearing of the carbon brushes

3) Premature wearing of the armature windings

4) Overloading of the tool due to high concentrations of dust.

Hand-Held Grinder Best Practices

Below are some directives that will help you achieve the maximum service life of your Metabo grinder.

1) Remove the back cover of the tool (3 torx # 25 screws) Using compressed air, blow out the tool completely at intervals every couple of hours.

2) If the on/off switch button is stuck, unplug the grinder from the power source. Remove the 3 torx screws on the back cover (T25), remove one torx screw (T20) on the cord support, and remove the back cover (black in color) Free the switch slide, and blow out with compressed air. Reassemble in the reverse order, ensuring proper routing of the power cord cable within the tool.

3) When available, use tuckpointing guards in tuckpointing applications, or dust shrouds in cup grinding applications.

4) Ensure that the proper gauge extension cord is being used. A typical 50-foot cord should be running a minimum of 10 gauge cord.

5) Small gauge cords run at a long length will lose power over the length of the run, causing the tool to overload and heat up.

6) Ensure that the proper power source is supplied to the grinder. For example, running two grinders on a 2000-watt generator.

7) Ensure there aren’t any cuts in the power cord or sheath causing a loss in power to the grinder.

8) When finished with a cut, before shutting the tool off and setting it down, under no load, let the grinder run for 15-20 seconds allowing fresh air to circulate through the tool and cool off the armature (motor).

9) When implementing these few minor methods, you will prolong the life of your Metabo tool and have many more problem-free hours of work.

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