This document is a manual for the use of handheld grinders. It mainly introduces the use methods and precautions of grinders.
This instruction manual explains the safety precautions required when using the Makita GA7020/GA7020F angle grinder, including the need for safety glasses, ear protection, dust masks and proper work‑area conditions. It also describes the intended use for grinding, sanding and cutting metal and stone without water.
The guide details how to install and remove discs, operate the trigger and lock lever, and perform routine maintenance such as cleaning ventilation openings and replacing carbon brushes. It includes electrical requirements, wiring recommendations and compliance information. This manual is written in Spanish.
| Disc diameter (center hole) | 180 mm (GA7020) / 230 mm (GA9020) |
|---|---|
| Spindle thread | M14 |
| No‑load speed | 8 500 rpm (GA7020) / 6 600 rpm (GA9020) |
| Overall length | 473 mm |
| Net weight | 4.7 kg |
| Supply voltage | 220 V–250 V AC, single‑phase |
The tool must be connected to a single‑phase AC supply between 220 V and 250 V, matching the voltage shown on the name‑plate.