grinder machine repair beringe change #grainder #repair #mobile #mobilereparing Common Issues and Fixes 1. Angle Grinder Won’t Start Check Power Supply: Ensure the power cord is intact and the outlet is functional. Inspect the Switch: Open the casing and check the on/off switch. Clean or replace it if faulty. Carbon Brushes: Worn brushes are a common issue. Open the grinder, locate the brushes near the motor, and replace them if they appear short or burnt. 2. Angle Grinder Overheating Check Ventilation: Clean dust and debris from the ventilation slots. Inspect Bearings: Overheating can result from seized bearings. Replace them if necessary. Grease Gears: Apply appropriate grease to the gearbox to ensure smooth operation. 3. Grinder Disk Not Spinning Check Disk Lock Mechanism: Ensure the spindle lock button isn’t stuck or damaged. Inspect Gearbox: Open the grinder and check for worn or broken gears. Replace as needed. Tighten or Replace Flanges: Loose or damaged flanges can prevent the disk from spinning. 4. Unusual Noises or Vibrations Check Bearings: Remove the armature and inspect the bearings. Replace any worn or noisy bearings. Inspect the Motor: Look for loose parts, damaged windings, or debris inside the motor. 5. Burning Smell or Sparks Carbon Brushes: Replace worn brushes and clean the commutator. Inspect Armature: Check for burnt spots on the armature and replace it if damaged. --- Required Tools Screwdrivers (flathead and Phillips) Multimeter (to check electrical continuity) Replacement parts (brushes, bearings, gears, etc.) Cleaning tools (brush, air blower) Lubricant or grease --- Safety Precautions Unplug the grinder before repair. Wear safety gloves and goggles. Avoid touching electrical components with wet hands. If the grinder still doesn’t work after repairs, consider consulting a professional or replacing it, as some repairs (e.g., motor rewinding) may not be cost-effective.