19
ECOGRINDER MAINTENANCE
DAILY
1. Before daily start-up inspect grinder, power cord, circuit breaker assembly, and grinding
wheel looking for chips and cracks. Inspect the dust bag for holes or if it is full and
needs to be replaced.
2. If damage has occurred, repair affected areas before use.
3. Turn the unit on to ensure that the fan is running and the dust bag is inflating. A new
bag will not inflate until the pores in the material start to fill with stone dust.
4. After daily use of the tool, clean and blow off the exterior of tool and around air intake
vents on rear handle.
PERIODIC
WARNING!
Preventive maintenance performed by unauthorized personnel may result in misplacing of
internal wires and/or components which voids the warranty and could cause serious hazards.
We recommend that tool service and repairs not covered in the manual be preformed by
an Alpha
®
Authorized Repair Center.
Periodic maintenance is done to check the tool and to minimize down time. These checks
are done based on hours of operation and operating conditions. Operating conditions can
vary depending on the work surface and job being preformed. If the tool is not used for a
long period of time, the carbon brushes should be checked and the commutator cleaned,
before putting the tool back into operation.
BEARINGS AND GEARS
To minimize your tool’s down time and expensive tool repairs, it is recommended to send
the tool back to an Alpha
®
Repair Center after about 300 to 400 hours of operation or every
second carbon brush change. The bearings should be replaced and the gears should be
checked. If your tool starts to sound differently, this could be an indication of a worn bearing.
Continuing to use the tool in this condition could result in overheating or motor failure.