Grizzly H7762 Manuel d'utilisateur télécharger pdf (Page 20)

-18-

H7762 Heavy Duty Tool Grinder

Wheel Care

Wheel Dressing

A large part of your safety while grinding depends

on the condition of the grinding wheel. A wheel in

poor condition may break apart during rotation,

causing serious injury.

To properly care for your wheel, follow these

tips:

• Always transport, store and handle wheels

with care. Wheels may be damaged if

dropped or if heavy objects are stacked on

them.

• Select the right grinding wheel for both the

job and the machine. DO NOT grind material

that is not designed for the wheel. A machine

that rotates at a higher RPM than the wheel

is rated for may cause the wheel to fly apart.

• Mount the wheels properly. (See the

"Replacing Wheels" instructions on Page 1

for guidance.) Never use a wheel with the

wrong arbor size for the grinder.

• DO NOT abuse the wheel by jamming the

workpiece into the grinding wheel with exces

sive force. This can cause irreparable dam

age to the wheel.

• Learn how to use the grinder and the grinding

wheels properly. Ask a trusted person with

experience or consult with your local library

to learn more.

• Dress the grinding wheel when the surface

loses its abrasive quality or becomes unbal

anced.

Dressing restores the grinding wheel with a like-

new abrasive quality. Whenever the front surface

of the wheel loses its abrasive qualities or balance

due to particle loading or polishing of the wheel

surface, then the wheel should be dressed. Use

a commercially-available dressing tool, such as

those available on Page 21

To dress the grinding wheel:

1. With the machine plugged into power, stand

to the side of the grinding wheel and move

the switch to the

ON position.

2. Allow the machine to run for at least one full

minute to make sure that the grinding wheel

is safe to use, then move to the front of the

machine.

3. Hold the dressing tool firmly on the tool rest

with both hands and press it lightly against

the front surface of the grinding wheel

4. Move the dressing tool in a side-to-side

motion, while keeping it even with the surface

of the grinding wheel.

5. Regularly pull the dressing tool away from the

wheel for visual inspection and repeat

Steps

3 & 4 until the surface of the wheel appears

to be restored to its normal color and bal

ance.

6. Depending on the type of metal, you may need

to regularly dip the workpiece into the water

cup to cool it off. For heat-intensive work,

direct a stream of water onto the workpiece

and grinding wheel with the flexible water

pipe. The flow of water can be increased or

decreased using the red valve just below the

water cup. If the water supply is exhausted,

stop grinding and refill the water cup.

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 31 32

Commentaires sur ces manuels

Pas de commentaire

Grizzly H7762 Manuel d'utilisateur Page 20

Commentaires sur ces manuels

Produits connexes et manuels pour Outils Grizzly H7762