TROUBLESHOOTING CHART
• Motor doesn’t start.
• Voltage drop.
• Motor short circuit or bad connection.
Problem
Probable cause
Solution
• Check power source.
• Check all motor connections.
• Motor doesn’t start; fuse burnt,
circuit breaker tripped.
• Plug or switch short circuit.
• Motor short circuit or bad connection.
• Imcompatible fuse or circuit breaker
in the electric box.
• Check plug or switch for bad insola-
tion or contact.
• Check all motor connections or bad
wire insolation.
• Install proper fuse or circuit breaker.
• Motor does not develop maximum
power (Voltage decrease at motor
terminal).
• The power source is overloaded
with lamps, accessories or another
motor.
• Wiring too small or circuit line too
long.
• Electrical company overload.
• Drive V-belt is tensioned incorrectly.
• Reduce charge on circuit.
• Increase wire size or reduce length
of circuit line.
• Request voltage check by power
supplier.
• Reajust V-belt tension.
• Motor overheats.
• Motor overload.
• Drive V-belt is overtensioned.
• Reduce charge on circuit.
• Retension V-belt properly.
• Motor chokes (caused by burnt
fuse or tripped circuit breaker).
• Short circuited motor or bad
connection.
• Voltage too low.
• Imcompatible fuse or circuit breaker
in the electric box.
• Motor overloaded.
• Check all motor connections or bad
wire insolation.
• Rectify voltage.
• Installez les fusibles et les
disjoncteurs appropriés.
• Reduce charge on circuit.
• Sander slows down during
operation.
• Applying too much pressure on the
workpiece.
• Apply less pressure.
• Sanding belt is positioned off the
top drum.
• Belt tracking is incorrect.
• Refer to manual for proper belt
tracking.
