Section 7: Service; Troubleshooting - Grizzly G0960 Owner's Manual

SECTION 7: SERVICE

Review the troubleshooting 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. Note: Please gather the
serial number and manufacture date of your machine before calling.
Motor & Electrical
Symptom Possible Cause
Machine does 1. Switch disabling key removed.
not start, or
2. Machine circuit breaker tripped or at fault.
power supply
3. Incorrect power supply voltage or circuit size.
breaker
immediately
4. Plug at fault/wired incorrectly.
trips after
5. Power supply circuit breaker tripped or fuse
startup.
blown.
6. Motor wires connected incorrectly.
7. Start capacitor at fault.
8. Centrifugal switch adjustment/contact points
at fault.
9. Wiring broken, disconnected, or corroded.
10. ON/OFF or circuit breaker switch at fault.
11. Motor or motor bearings at fault.
Machine 1. Dull blade.
stalls or is
2. Feed rate too fast.
underpowered.
3. Workpiece moves/not secure on track.
4. Machine undersized for task.
5. Blade slipping on wheels or not properly
tensioned.
6. Belt slipping/pulleys misaligned.
7. Motor wires connected incorrectly.
8. Plug at fault/wired incorrectly.
9. Pulley slipping on shaft.
10. Motor overheated, tripping machine circuit
breaker.
11. Run capacitor at fault.
12. Extension cord too long.
13. Centrifugal switch adjustment/contact points
at fault.
14. Motor or motor bearings at fault.
Machine has 1. Excessive sawdust buildup inside saw
vibration or
headstock.
noisy operation.
-52-

Troubleshooting

Possible Solution
1. Install switch disabling key.
2. Reset circuit breaker.
3. Ensure correct power supply voltage and circuit size
(Page 12).
4. Test for good contacts; correct wiring (Page 62).
5. Ensure circuit is free of shorts. Reset circuit breaker or
replace fuses.
6. Correct motor wiring connections (Page 62).
7. Test/replace if at fault.
8. Adjust centrifugal switch/clean contact points. Replace
either if at fault.
9. Fix broken wires or disconnected (Page 62)/corroded
connections.
10. Replace switch/circuit breaker.
11. Replace motor.
1. Sharpen/replace blade.
2. Decrease feed rate.
3. Secure log against supports; remove branches or
lumps that prevent even positioning.
4. Use correct blade/reduce feed rate or depth of cut.
5. Adjust blade tracking (Page 38) and tension
(Page 36).
6. Clean/tension (Page 55)/replace belt (Page 56);
ensure pulleys are aligned.
7. Correct motor wiring connections (Page 62).
8. Test for good contacts; correct wiring (Page 62).
9. Tighten/replace loose pulley/shaft.
10. Clean motor, let cool, and reduce workload. Reset
breaker.
11. Test/repair/replace.
12. Move machine closer to power supply; use shorter
extension cord.
13. Adjust centrifugal switch/clean contact points. Replace
either if at fault.
14. Replace motor.
1. Vacuum excess chips and sawdust.
Model G0960 (Mfd. Since 09/22)