L 21-6 230 - Grinder Flex - Free user manual and instructions
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| Brand | Flex |
| Model | L 21-6 230 |
| Product type | Angle grinder |
| Disc diameter | 230 mm |
| Rated power | 2100 W |
| No-load speed | 6500 rpm |
| Spindle thread | M14 |
| Weight | 5.4 kg |
| Dimensions (L x W x H) | 450 x 140 x 130 mm |
| Power supply | 230 V ~ 50 Hz |
| Power cable | 4 m, H07RN-F |
| Protection | Class II (double insulation) |
| Main functions | Cutting, grinding, deburring |
| Additional handle | Adjustable anti-vibration handle |
| Protective guard | Tool-free orientation |
| Safety device | Disc brake, safety stop |
| Soft start | Yes |
| Maintenance and cleaning | Clean ventilation slots with a soft brush |
| Spare parts | Discs, carbon brushes, switch |
| Repairability | Repairability index 8.2/10 |
Frequently Asked Questions - L 21-6 230 Flex
How to change the disc on the Flex L 21-6 230 angle grinder?
Unplug the tool. Use the spindle lock key to hold the shaft, then unscrew the clamping flange with the supplied key. Replace the disc and retighten firmly. Ensure the disc is suitable for the maximum speed.
What type of disc to use for cutting?
For cutting, use a diamond disc or an abrasive disc with a maximum thickness of 2.5 mm. Respect the 230 mm diameter and maximum speed of 6500 rpm. Never use a damaged disc.
The grinder vibrates a lot, is this normal?
Some vibration is normal, but if it is excessive, check that the disc is well balanced and correctly mounted. Also clean the spindle and flange. If the problem persists, check the wear on the bearings.
How to adjust the additional handle?
Unscrew the handle knob, pivot it to the desired angle (0° to 90°), then retighten firmly. The handle can be mounted on either side of the housing. Always use the additional handle.
Can I use the grinder without the protective guard?
No, the protective guard is mandatory for your safety. It protects against particle projections and in case of disc breakage. Never use without the guard.
What is the power of the Flex L 21-6 230?
The rated power is 2100 W, allowing intensive grinding and cutting work. Ensure your electrical installation supports this power.
How to replace the carbon brushes?
The carbon brushes are accessible through side caps. Unscrew them, remove the worn brushes and insert new ones. Use only genuine Flex brushes.
The grinder does not start, what to do?
First check the power cable and plug. If the problem persists, the safety block or switch may be faulty. Consult an authorized service center. Do not attempt to repair electrical components yourself.
What is the no-load speed of this grinder?
The no-load speed is 6500 rpm. Never exceed the maximum speed indicated on the disc. Use a speed regulator if necessary.
How to clean the grinder after use?
Unplug the tool. Use a soft brush to clean the ventilation slots. Wipe the housing with a damp cloth. Do not use solvents or immerse in water.
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