G0645 Benchtop Mortising Machine
-25-
Review the troubleshooting and procedures in this section to fix or adjust your machine if a problem devel-
ops. If you need replacement parts or you are unsure of your repair skills, then feel free to call our Technical
Support at (570) 546-9663.
SECTION 7: SERVICE
Troubleshooting
Motor & Electrical
Symptom Possible Cause Possible Solution
Motor will not start;
fuses or circuit
breakers blow.
1. Tripped breaker.
2. Short circuit in line cord or plug.
3. Open circuit in motor or loose connections.
1. Repair for cause of tripped breaker and reset.
2. Repair or replace cord or plug for damaged insula
-
tion and shorted wires.
3. Inspect all lead connections on motor for loose or
open connections.
Motor overheats
or stalls (resulting
in blown fuses or
tripped circuit).
1. Short circuit in motor or loose connections.
2. Air circulation through the motor restricted.
3. Incorrect size fuses or circuit breakers.
4. Motor overloaded.
1. Replace motor connections with loose/shorted termi
-
nals or worn insulation.
2. Clean out motor to provide normal air circulation.
3. Install correct fuses or circuit breakers.
4. Reduce load on motor.
Loud repetitious
noise coming from
machine.
1. Motor fan is hitting the cover. 1. Adjust fan cover mounting position, tighten fan, or
shim fan cover.
Mortising Operations
Symptom Possible Cause Possible Solution
Difficult to pull
lever down during
machine operation.
1. Drill bit does not protrude enough from the
end of the chisel.
2. Chisel or drill bit is dull.
3. Mortising operating handle is not positioned
for maximum leverage.
4. Chisel is too big for job.
1. Adjust the drill bit depth.
2. Sharpen/replace drill bit and chisel.
3. Adjust the handle for maximum length, and position
it so you have the maximum leverage at the most
dificult mortising depth.
4. Use up to
1
/2" long chisel (maximum).
Mortising bit and
chisel are extremely
noisy, chatter, and
smoke. (An average
amount of noise and
chatter are normal
for any mortising
machine.)
1. Drill bit out of alignment with chisel.
2. The chisel mounting bushing is loose or
damaged causing poor drill bit-to-chisel
alignment.
3. The chisel or drill bit is bent.
4. Normal condition.
1. Reinstall chisel in a different position.
2. Replace bushing, using care not to over-tighten the
chisel retaining set screw.
3. Replace the chisel and drill bit as a matched set.
4. Some amount of chatter and smoke is normal.
Moritising bit and
chisel generate
smoke and burn the
workpiece.
1. The drill bit is dull.
2. Drilling pressure is too aggressive and over
-
heats the drill bit.
3. Wood chips load up in the chisel and over
-
heat the drill bit.
4. Wood is too green, has high moisture con
-
tent, or is pressure treated.
1. Sharpen/replace drill bit and chisel.
2. Adjust drill bit depth, reduce drilling pressure, clear
chips often.
3. Apply small amount of bees wax to drill bit; face
chisel slot sideways; clear chips often.
4. Only mortise dry, untreated wood.
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