-14-
M1051 6" Bench Grinder

MAINTENANCE

MAINTENANCE
Check for the following conditions and repair or
replace when necessary:
• Loose mounting bolts.
• Worn switch.
• Worn or damaged cords and plugs.
• Cracked or loose grinding wheel.
• Any other condition that could hamper the safe
operation of this machine.
This grinder has sealed bearings that require no user
lubrication.
The grinding wheel should be inspected before every
use. Use the ring test method noted in the Grinding
Wheel section in Changing Grinding Wheels on Page 13
to verify the structural integrity. Take care in storing
grinding wheels to keep them free from potential dam-
age by being dropped, or having other items drop on
them.
Replace the wheel when the wheel diameter is reduced
to 4". Operating at anything less than this diameter does
not allow the proper alignment of the Tool Rest and the
Eye Shield, and the grinding wheel may fly apart.
Depending on the type of grinding you do, the grinding
wheel may require periodic dressing. There are several
different types of wheel dressing devices available on
the market. Use a suitable diamond or silicon carbide
stick type dresser. Sweep it smoothly and evenly several
times across the face of the wheel. Dressing restores the
abrasive quality of the wheel surface, plus it will bring
the wheel edge back to a square form. Refer to the
instructions which accompany your dressing accessory
for complete detail on wheel dressing.

Lubrication & Cleaning

General

MAKE SURE that your machine is
unplugged during all maintenance pro-
cedures! If this warning is ignored, seri-
ous personal injury may occur.