Section 7: Service; Troubleshooting - Grizzly G0714 Owner's Manual

SECTION 7: SERVICE

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.
Operation
Symptom Possible Cause
Intermittent, 1. Suction tube has been clogged from
clogging, or no
contaminant.
media spray
at blast gun;
or striping is
2. Incorrect or worn-out media.
occurring on
workpiece.
3. Worn or incorrect blast tip.
4. Low airflow or pressure up to cabinet.
5. Blasting system has incorrect airflow
or pressure.
6. Cabinet is overloaded with media.
7. Blast gun is damaged or has bad seals.
8. Foot valve or lines are at fault.
1. Damaged or loose power cord.
Dust collector
won't start or
circuit breaker trips.
2. ON/OFF switch at fault.
3. Circuit breaker/fuse has tripped.
4. Wiring at fault.
5. Motor brushes at fault.
6. Motor at fault.
LED lights are 1. LED light(s) at fault.
dim or will not
2. ON/OFF switch at fault.
illuminate.
3. Wiring at fault.
Model G0714 (Mfd. Since 05/22)

Troubleshooting

Possible Solution
1. Cover blast tip and press foot pedal to use
air pressure to purge foot valve and suction
system. Repeat step periodically during
blasting operations.
2. Verify that media chosen is correct material
for blasting operation (Page 26). Make
sure that media is not worn-out, saturated
with debris, or contaminated with moisture,
causing it to cake inside of lines. Screen or
replace media as required.
3. Disconnect machine from air and rotate blast
tip ⁄ -turn to compensate for wear. Replace or
1
4
install with correct blast tip.
4. Troubleshoot air supply system and
verify compressor, supply lines, moisture
separators, and air dryers have correct airflow
and are in good working order.
5. Adjust air regulator on cabinet to maintain
correct air pressure and flow, and verify no
hose kinks or clogs exist.
6. Remove media but leave just enough for
blasting operation.
7. Disassemble blast gun, clean and reseal.
8. Clean and reseal foot valve, fittings, and lines.
1. Re-secure and test power cord. Replace as
required.
2. Test and replace open switch.
3. Replace fuse on control box, reset power
supply circuit breaker.
4. Repair for open or shorted wiring connections.
5. Replace motor brushes (Page 33).
6. Test and replace motor as required.
1. Replace LED light(s).
2. Test and replace open switch.
3. Repair for open or shorted wiring connections.
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