Maintenance Of The Bench Grinder; Troubleshooting Guide; Lubrication; Cleaning - Craftsman 152.21152 Owner's Manual

To avoid serious inury, turn the power switch "OFF" and
unplug the power cord from its power source prior to any
maintenance.
LUBRICATION
The Bench Grinder has sealed lubricated bearings in the
motor housing that do not require any additional
lubrication from the operator.
CLEANING
With the Bench Grinder unplugged, rotate the abrasive
wheels slowly and inspect for any damage or trapped
shavings.
Replace the abrasive wheels if there is any damage at
all. Failure to replace a damaged wheel can cause
serious injury to the operator
CAUTION: DO NOT USE FLAMMABLE MATERIALS
to clean the Bench Grinder. A clean dry rag or brush is
all that is needed to remove dust and debris buildup.
Repairs to the Bench Grinder should be performed by
trained personnel only. Contact your nearest Sears
Service Center for authorized service. Unauthorized
repairs or replacement with non-factory parts could
cause serious injury to the operator and damage to the
Bench Grinder.
TO PREVENT INJURY TO YOURSELF or damage to the Bench Grinder, turn the switch to the =OFF" position and
unplug the power cord from the electrical receptacle before making any adjustments.
PROBLEM
Motor does
not run
Motor does not
have full power
Motor runs hot
Motor stalls or
or runs slow
Fuse blows or
circuit breaker
trips
LIKELY CAUSE
1. Machine not plugged in
2. Power switch in "OFF" position
3. Power cord is faulty
4. Fuse or circuit breaker are open
5. Damaged motor
1. Incorrect line voltage
2. Damaged motor
1. Motor is overloaded
2. Poor air circulation around motor
3. Motor is overloaded
1. Motor is overloaded
2. Motor is overloaded
3. Incorrect line voltage
4. Capacitor has failed
1. Motor overloaded
2. Overloaded electrical circuit
3. Wrong fuse or circuit breaker
4. Undersized or excessive length of
extension cord
5. Grinding wheels are blocked
SOLUTION
1. Plug power cord intoelectrical receptacle
2. Lift switch to "ON" position
3. Return to Sears Service Center
4. Ovedoaded electrical circuit
5. Return to Sears Service Center
1. Have a qualified electrician check line for proper
voltage.
2. Return to Sears Service Center
1. Reduce pressure on workpiece
2. Remove any blockage around motor
3. Adjust variable speed to higher R.P.M.'s
1. Reduce pressure on workpiece
2. Adjust variable speed to higher R.P.M.'s
3, Have a qualified electrician check line for proper
voltage
4. Return to Sears Service Center
1. Reduce pressure on workpiece
2. Reduce the amount of items on circuit
3. Replace with correct fuse or circuit breaker
4. Use correct size; see manual
5. Unplug machine and remove obstruction
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