Grizzly G0529 - Manual (Page 31)

g0529 oscillating Spindle & disc Sander -29-
troubleshooting
motor & electrical
Symptom possible Cause possible Solution
Motor will not start. 1. low voltage.
2. open circuit in motor or loose connections. 1. Check power line for proper voltage.
2. inspect all lead connections on motor for loose or
open connections.
Motor will not start;
fuses or circuit
breakers blow. 1. Short circuit in line cord or plug.
2. Short circuit in motor or loose connections.
3. incorrect fuses or circuit breakers in power
line.
1. inspect cord or plug for damaged insulation and
shorted wires.
2. inspect all connections on motor for loose or shorted
terminals or worn insulation.
3. install correct fuses or circuit breakers.
Motor overheats. 1. Motor overloaded.
2. incorrect usage of machine.
3. air circulation through the motor restricted. 1. reduce load on motor.
2. reduce the applied load on the machine.
3. Clean out motor to provide normal air circulation.
Motor stalls (result-
ing in blown fuses or
tripped
circuit). 1. Short circuit in motor or loose connections.
2. low voltage.
3. incorrect fuses or circuit breakers in power
line.
4. Motor overloaded.
1. inspect connections on motor for loose or shorted
terminals or worn insulation.
2 Correct the low voltage conditions.
3. install correct fuses or circuit breakers.
4. reduce load on motor.
machine operation
Symptom possible Cause possible Solution
grains easily rub off
the sleeve or disc. 1. Sanding sleeve/disc has been stored in an
incorrect environment.
2. Sanding sleeve/disc has been smashed or
folded.
1. Store sanding sleeve/disc away from extremely hot
or dry temperatures.
2. Store sanding sleeve/disc flat not bent or folded.
deep sanding
grooves or scars in
workpiece.
1. Sanding sleeve/disc grit is too coarse for the
desired finish.
2. Workpiece sanded across the grain.
3. too much sanding force on workpiece.
4. Workpiece held still against the sleeve/
disc.
1. use a finer grit sanding sleeve/disc.
2. Sand with the grain.
3. reduce pressure on workpiece while sanding.
4. Keep workpiece moving while sanding on the sleeve/
disc.
Sanding surface
clogs quickly or
burns.
1. too much pressure against sleeve/disc.
2. Sanding softwood. 1. reduce pressure on workpiece while sanding.
2. use different stock. or, accept the characteristics
of the stock and plan on cleaning/replacing sleeves
frequently.
glazed sanding sur-
faces. 1. Sanding wet stock.
2. Sanding stock with high residue. 1. dry stock properly before sanding.
2. use different stock. or, accept the characteristics of
the stock and plan on cleaning/replacing sleeves/
discs frequently.
Burn marks on work-
piece. 1. using too fine of sanding grit.
2. using too much pressure.
3. Work held still for too long. 1. use a coarser grit sanding sleeve/disc.
2. reduce pressure on workpiece while sanding.
3. do not keep workpiece in one place for too long.