The Makita DGA452Z gives cordless convenience for grinding & cutting applications. It has an over-discharge and over-heating battery indicator. This 18V Makita angle grinder features a brushless engine providing higher power and optimizing the lifetime of batteries. Makita has a large range of top quality grinding wheels and sanding discs to compliment the high performance of these new LXT Brushless Grinders.

The built-in electronic control circuit with L.E.D. warning lights for overload protection. Using an anti-restart app, slide shift, soft start, lock-on power, this 18v Makita Angle Grinder.  It uses Rust’s Fast Work to cut tile, engine, and build. It comes with an Active Feedback sensing Technology (AFT) and Automatic Torque Drive Technology (ADT) brushless motor.

  • Brushless DC motor produces less heat buildup and is suitable for sustained use in manufacturing.
  • The battery indicators for protection against over-discharge and overheating.
  • Paddle switch without lock-on for convenience of the user.
  • For smooth start-ups and longer gear life, soft start-up suppresses start-up reaction.
  • The powerful angle grinder was safe now from cable and power socket constraints.

Angle Grinder overheating

If the motor gets hot on your grinder, check the armature, field, fan, and gears.

Armatures: The armature, which is inside the field, is the motor’s power-producing portion. Common causes of a hot running armature are heavy internal soil build-up, a broken cooling fan, blocked cooling ports–resulting in poor air circulation to keep cool–or operating in hot environments, overloading the motor.

Fans: The fans keep both the motor cool and all the other internal grinder parts that generate heat. A damaged fan cannot move enough air to prevent motor overheating. Mount the new fan onto the shaft and then reinstall the side cover, lock button and paddle onto the grinder again.

Fields: The field is an electromagnet used in an electro-magnetic system to produce a magnetic base. Over time, this component will build up a lot of heavy dirt and cause excessive heat in the engine as the dirt doesn’t allow the heat to dissipate quickly.

Slow performance:

  • Worn carbon brushes: If the angle grinder does not spin at a constant velocity or is slower than normal, the carbon brushes may be worn off. The carbon brushes are two parts of an electric motor, which transmits current via the commutator to the rotating armature. Worn carbon brushes will lower overall engine performance.
  • Faulty or unbalanced disk: Since an angle grinder is a multifunctional device it comes with several wheels and disks. For the task at hand, make sure the correct size and type of disk are used. Check for signs of disc degradation such as dull needles, chipped edges, cracks or irregular wear after testing the disk.

System overwork (lack of time for cooldown)

When grinding rock, or after doing a hard job, add less pressure to the angle grinder. To allow the machine to cool down, it’s recommended that the grinder spin freely for a few seconds. Give the angle grinder some time after every job to cool down and refrain from continued use over long periods of time.

Noise unwanted or unusual during service:

Each type of grinder can make noise, but there may be occasions when it makes noise that’s different or louder than normal. Where that’s the case, it may be a warning that it works too hard. Make sure that the power supply is sufficient and will not let the system fail.

Smoke when the system is working:

Regular use of an angle grinder can cause sparks and flying debris. If smoke is produced during service, you should be concerned. This could be due to the wheel being clogged as a result of dirt and rust build-up. If you detect smoke from the grinder then turn it off immediately.

Remove the spindle wheel to give you access and clean all the components before you try again. You must also ensure that the size and form of a disk that is attached to the grinder is the right one for the job.

Safety guide

  • Please wear eye protection, ear protection, durable gloves and good footwear like a pair of heavy boots or even better, steel toecaps.
  • Just grind and cut off your body and make sure that the guard takes away any debris from you.
  • Use only grinding disks for grinding and cutting disks for cutting – simply using only a single disk or connection for its intended use.
  • Make sure that any object is firmly fixed to a decent working surface. If not, the torque produced by the grinder can send it off in the distance.
  • If you don’t use the machine, make sure it is switched off at the side. If you unintentionally lean on it or stand on it, it can start and cause damage.