Grizzly Disc G0724 - Manual (Page 24)

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Model g0724 (Mfg. since 09/11)
troubleshooting
Motor & Electrical
symptom possible Cause possible solution
Machine does not
start. 1. switch disabling key removed. 1. reinstall switch disabling key.
2. power supply switched off/has incorrect
voltage.
2. switch power supply on/verify voltage.
3. Blown fuse/tripped circuit breaker at main
panel.
3. Correct the cause of overload, then reset/replace
fuse or breaker.
4. Break or short in wiring, loose connections,
plug or receptacle is damaged or miswired.
4. trace/replace broken or corroded wires, fix loose
connections, correct wiring.
5. Motor connection wired incorrectly. 5. Wire motor correctly (refer to inside junction box
cover or manual).
6. Motor on/oFF switch at fault. 6. replace switch.
7. start capacitor has blown. 7. test/replace if at fault.
8. Motor at fault. 8. test for shorted windings or bad bearings; repair or
replace.
Machine has
excessive vibration
or noise. 1. Workpiece loose or incorrectly secured. 1. use correct holding fixture and re-clamp workpiece.
2. lock lever is loose. 2. tighten the lock lever.
3. Machine incorrectly mounted to bench. 3. level/shim base; tighten/adjust mounting hardware
or feet.
4. Motor fan rubbing on fan cover. 4. Fix/replace fan cover; replace loose or damaged fan.
5. Motor mounting loose. 5. tighten mounting bolts/nuts; use thread locking fluid.
6. Centrifugal switch out of adjustment; at fault. 6. adjust/replace centrifugal switch.
7. Motor bearings worn or damaged.
7. replace motor bearings or replace motor.
Machine stalls
or slows when
operating. 1. too much pressure when feeding workpiece 1. reduce pressure when feeding workpiece.
2. Workpiece is incorrect for machine.
2. only sand wood and ensure moisture is below 20%.
3. Motor overheated. 3. let cool, clean motor, and reduce workload.
4. Motor at fault. 4. test, repair, or replace motor.
Review the troubleshooting and procedures in this section if a problem develops with your machine. If you
need replacement parts or additional help with a procedure, call our Technical Support at (570) 546-9663.
Note: Please gather the serial number and manufacture date of your machine before calling.
SECtION 7: SERvICE