❶ How To Repair A Grinder

Table of contents:

❶ How To Repair A Grinder
❶ How To Repair A Grinder

Video: ❶ How To Repair A Grinder

Video: ❶ How To Repair A Grinder
Video: RESTORATION The Most Destroyed & Rusty Angle Grinder you never seen before - Kinda IMPOSSIBLE Repair 2024, March
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How to repair a grinder
How to repair a grinder

An angle grinder, or grinder, is an indispensable tool in the arsenal of any home craftsman. It is used in repairs, construction works and metalworking. The grinder easily copes with work related to cutting, cleaning and grinding products made of metal, stone and other materials. In some cases, malfunctions of the grinder can be repaired on your own. Location: Location:

You will need

- set of wrenches;

- screwdriver;

- clean rags;

- sandpaper;

- tester;

- assembly knife;

- insulating tape;

- spare parts for the grinding machine;

- solid oil or lithol.

If the collector of the machine is dirty, clean it. Symptoms of a malfunction are the appearance of sparks during the operation of the grinder, significant heating of the case, popping sounds when starting, accompanied by a burning smell.

Disassemble the tool and disconnect the engine armature. To do this, remove the fastening elements, take out the brushes, remove the gearbox. Remove the released anchor from the body by the gear. At the end of the armature, which is located closer to the cord, there is a rolling bearing recessed into the housing, therefore, when removing it, pull the armature carefully, without applying excessive force.

Thoroughly wipe the released anchor with a clean cloth, paying special attention to the inter-turn space. Clean the back end of the armature, called the collector, and the gear that transmits rotation. If there are irreparable traces of burnout on the manifold, replace it with a serviceable one.

If the grinder does not turn on when you press the start button, check the mains voltage first. If there is voltage, look for the cause of the malfunction in the supply cable by ringing it with a tester. If you find a break in the wire, remove the defective part and splice the ends.

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Check the function of the start button. Make sure that the switch contacts are good and free of contamination. Clean contact surfaces. If damaged or broken, replace the button on the device.

If there is mechanical sound accompanying the rotation of the working disc, check the machine gearbox. This mechanical unit transmits rotation with a change in rotation speed and power and often fails with prolonged use of the tool without preventive maintenance.

Disassemble the gearbox; if necessary, replace the broken gear. Before assembling the unit, lubricate the parts with grease, lithol or other anti-friction grease. After assembly, let the grinder run for a few minutes in idle mode, without load.

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