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Item 56458
MAINTENANCE AND
SERVICING INSTRUCTIONS
Procedures not specifically explained
in this manual must be performed
only by a qualified technician.
TO PREVENT SERIOUS INJURY FROM
ACCIDENTAL OPERATION:
Make sure that the Switch is in the off-position
and unplug the tool from its electrical outlet
before performing any procedure in this section.
TO PREVENT SERIOUS INJURY FROM TOOL
FAILURE:
Do not use damaged equipment.
If abnormal noise or vibration occurs, have
the problem corrected before further use.
Cleaning, Maintenance,
and Lubrication
1.
bEFORE EACH USE,
inspect the general
condition of the tool. Check for:
• loose hardware,
• misalignment or binding of moving parts,
• damaged cord/electrical wiring,
• cracked or broken parts, and
• any other condition that may
affect its safe operation.
2.
AFTER USE,
empty Dust Box and wipe
external surfaces of the tool with clean cloth.
3. Periodically, wear ANSI-Approved safety goggles
and NIOSH-approved breathing protection and blow
dust out of the motor vents using dry compressed air.
4.
WARNING! If the plug or the supply cord
of this power tool is damaged, it must be
replaced only by a qualified service technician.
Troubleshooting
Problem
Possible Causes
Likely Solutions
Tool will not start.
1. Cord not connected.
2. No power at outlet.
3. Internal damage or wear.
(Carbon brushes or
switch, for example.)
1. Check that cord is plugged in.
2. Check power at outlet. If outlet is unpowered,
turn off tool and check circuit breaker. If breaker
is tripped, make sure circuit is right capacity
for tool and circuit has no other loads.
3. Have technician service tool.
Tool operates slowly.
1. Excess pressure applied
to workpiece.
2. Power being reduced by long or
small diameter extension cord.
1. Decrease pressure, allow tool to do the work.
2. Eliminate use of extension cord. If an extension
cord is needed, use one with the proper
diameter for its length and load. See
Extension
Cords
in
GROUNDING
section.
Performance
decreases over time.
Carbon brushes worn or damaged.
Have qualified technician replace brushes.
Excessive noise
or rattling.
Internal damage or wear.
(Carbon brushes or
bearings, for example.)
Have technician service tool.
Overheating.
1. Forcing tool to work too fast.
2. Blocked motor housing vents.
3. Motor being strained by long or
small diameter extension cord.
1. Allow tool to work at its own rate.
2. Wear ANSI-approved safety goggles and NIOSH-
approved dust mask/respirator while blowing
dust out of motor using compressed air.
3. Eliminate use of extension cord. If an extension
cord is needed, use one with the proper
diameter for its length and load. See
Extension
Cords
in
GROUNDING
section.
Tool does not
grind, sand or
brush effectively.
Accessory damaged, worn or
wrong type for the material.
Check condition and type of disc accessory. Use
only proper type of disc accessory in good condition.
Follow all safety precautions whenever diagnosing or servicing
the tool. Disconnect power supply before service.
