Ryobi DBJ50 Instructions d'exploitation télécharger pdf (Page 82)

Page 73 Power Equipment Usage Manual (Rev. 5/10)

15. GRINDER, BENCH (8” GRINDER 144290, 6” Delta 23-645)

The bench grinders are provided for sharpening of the woodturning &

woodcarving tools. All other required sharpening is performed by the

Maintenance Team ONLY!

Two bench grinders motors are provided in the Woodshop:

• The 8”grinder setup by the lathes has white wheels and is for sharpening the lathe tools only.

• The 6” Delta grinder is setup on the shop floor with buffing wheels.

15.1. Safety Precautions

a. NEVER use a chipped or cracked grinding wheel as it can explode!

b. NEVER grind on a cold wheel. The grinder must always be started

and run at idle speed for one full minute before applying work.

c. NEVER grind on the side of the wheel, use the face of the wheel

only.

d. NEVER grind aluminum, brass, bronze or copper as heat buildup

can cause the wheel to explode.

e. ALWAYS maintain a distance of 1/8” or less between the grinding wheel and the tool rest.

f. SECURELY tighten tool rests so they cannot shift position while in use.

g. KEEP the spark guards close to the wheel and readjust them as the wheel wears.

h. DO NOT USE A WHEEL THAT VIBRATES. Unsuitable grinding wheels can come apart, throwing

fragments at high speeds.

i. STAND TO ONE SIDE before turning the machine ON. Loose fragments or wheel parts could fly

from the wheel at high speeds.

j. NEVER START THE MACHINE with the workpiece against the grinding wheel. The workpiece can

be drawn into the wheel, causing damage to the machine and/or serious injury.

k. DO NOT TOUCH the ground portion of a workpiece until it has cooled sufficiently.

l. IT IS RECOMMENDED THAT YOU WEAR A FACE SHIELD WHEN GRINDING. Loose bits of the

grinding wheel frequently become dislodged and strike your face and eyes.

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Ryobi DBJ50 Instructions d'exploitation Page 82