17
Troubleshooting
Trouble Probable Cause Remedy
No incoming power. Verify unit is connected to power.
Fuse blown, or circuit breaker tripped. Replace fuse, or reset circuit breaker.
Cord damaged. Replace cord.
Mortiser frequently trips.
One cause of overloading trips which
is not electrical in nature is too heavy
a cut. Take a lighter cut. If this does
not solve the problem there is
probably a loose electrical lead.
Building circuit breaker trips or fuse
blows.
Verify that mortiser is on a circuit of
correct size. If circuit size is correct,
there is probably a loose electrical
lead.
Loose electrical connections.
Go through all the electrical
connections on the mortiser including
motor connections, verifying the
tightness of each. Look for any signs
of electrical arcing which is a sure
indicator of loose connections or
circuit overload.
Motor failure.
Have a qualified electrician or motor
repair shop test the motor; repair or
replace as necessary.
Mortiser will not start/
restart or repeatedly
trips circuit breaker or
blows fuses.
Start/Stop switch failure.
If the switch is suspect, you have two
options: Have a qualified electrician
test the switch for function, or
purchase a new switch and establish
if that was the problem on changeout.
Extension cord too light or too long.
Replace with adequate size and
length cord.
Auger does not come
up to speed.
Low current. Contact a qualified electrician.
Stand is on uneven surface.
Machine should be placed on level
floor; use shims if necessary.
Mortiser vibrates
excessively.
Motor vibration; malfunction. Repair or replace motor.
Auger contacting chisel.
Increase offset of auger in relation to
chisel. See page 11.
Noisy operation.
Loose screws, nuts, etc. Inspect and tighten fasteners.
Chips not clearing from hole or auger.
Retract auger frequently to remove
chips. Make sure chisel slot opens
toward area already cut.
Dull auger. Resharpen, or replace auger.
Workpiece burns.
Feeding auger too slowly into
workpiece.
Increase feed rate.
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