Makita GA7911 Owners Manual - Page 10

1. Lock nut 2. Flex wheel 3. Plastic pad 4. Inner flange 001103 1 2 3 4 Installing or removing flex wheel (optional accessory) WARNING: • Always use specific guard when depressed center grinding wheel/Multi-disc is on tool. Wheel can shatter during use and guard helps to reduce chances of personal injury. Follow instructions for depressed center grinding wheel/ Multi-disc but also use plastic pad over wheel. See order of assembly on accessories page in this manual. OPERATION A B WARNING: • It should never be necessary to force the tool. The weight of the tool applies adequate pressure. Forcing and excessive pressure could cause dangerous wheel breakage. • ALWAYS replace wheel if tool is dropped while grinding. • NEVER bang or hit grinding disc or wheel onto work. • Avoid bouncing and snagging the wheel, especially when working corners, sharp edges etc. This can cause loss of control and kickback. • NEVER use tool with wood cutting blades and other sawblades. Such blades when used on a grinder frequently kick and cause loss of control leading to personal injury. CAUTION: • After operation, always switch off the tool and wait until the wheel has come to a complete stop before putting the tool down. 001129 Grinding and sanding operation ALWAYS hold the tool firmly with one hand on rear handle and the other on the side handle. Turn the tool on and then apply the wheel or disc to the workpiece. In general, keep the edge of the wheel or disc at an angle of 15˚ about 15 degrees to the workpiece surface. During the break-in period with a new wheel, do not work the grinder in the B direction or it will cut into the workpiece. Once the edge of the wheel has been rounded off by use, the wheel may be worked in both A and B direction. 10