Grizzly G0538 - Manual (Page 20)

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Model g0538 (Mfg. since 12/09)
Sanding Operations
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Note:Please gather the serial number and manufacture date of your machine before calling.
SECTION 7: SERvICE
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 voltage and correct if necessary.
2. inspect all motor connections 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 and plug for damaged insulation
or shorted wires.
2. inspect all motor connections for loose or
shorted terminals or worn insulation.
3. install correct fuses or circuit breakers.
Motor overheats. 1. Motor overloaded. 1. reduce load on motor.
Motor stalls
(resulting in
blown fuses or
tripped circuit).
1. Motor overloaded.
2. short circuit in motor or loose connections.
3. low voltage.
4. incorrect fuses or circuit breakers in
power line.
1. reduce load on motor.
2. inspect connections on motor for loose or
shorted terminals or worn insulation.
3. Check power line voltage and correct if necessary.
4. install correct fuses or circuit breakers.
Machine slows
when operating. 1. Workpiece pressure is too great. 1. reduce workpiece pressure on spindle.
Machine vibrates
excessively. 1. Machine not secured to workbench.
2. incorrect motor mounting. 1. secure machine to workbench.
2. Check⁄adjust motor mounting.
symptom possible Cause possible solution
deep sanding
grooves or scars in
workpiece.
1. sanding sleeve too coarse for the
desired finish.
2. Workpiece sanded across the grain.
3. too much sanding force on workpiece.
1. use a finer grit sanding sleeve.
2. sand with the grain.
3. reduce pressure on workpiece while sanding.
grains rub off the
sanding sleeve. 1. sanding sleeve has been stored in an
incorrect environment.
2. sanding sleeve has been folded or
smashed.
1. store sanding sleeve away from extremely dry
or hot temperatures.
2. store sanding sleeves separately and not
folded or flat.
sanding surfaces
clog quickly or burn. 1. too much pressure against sleeve.
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
belts frequently.
Burn marks on
workpiece. 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.
2. reduce pressure on workpiece while sanding.
3. do not keep workpiece in one place for too long.