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11
PROBLEM
CAUSE
CORRECTION
Does not run
when switch
is on
No electrical
power to
Grinder
Check 120 VAC input plug connection.
Check for tripped circuit breaker.
Motor runs too
slow/develops
low power
Undersized or
too long of an
extension cord
Use only 18 gauge or larger cord.
Limit length to 25’.
Grinding Wheel
contacting I.D.
of Grinding
Guide and
binding
Adjust 4 Set Screws of Grinding Guide to center
over Grinding Wheel.
Excessive
Noise and/or
Vibration
Diamond Grind-
ing Wheel is
damaged
This is an extremely dangerous condition!
Stop Use and replace Diamond Grinding
Wheel!
Tungsten
overheats
Excessive
pressure being
applied to
tungsten
Allow Diamond Grinding Wheel to cut by rotation
alone. Do Not Force.
Dirt and debris
buildup in
motor cooling
air slots
Use a brush or compressed air to remove debris.
TROUBLESHOOTING
MAINTENANCE
IMPORTANT NOTE:
The following maintenance should be performed before each use:
• Inspect Diamond Grinding Wheel for cracks, damage or premature wear.
• Clean dirt and debris from motor air cooling slots.
• Check Diamond Grinding Wheel Retaining Screw and Grinding Guide Retaining Set-Screws
for tightness.
