Table of Contents
Advertisement
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 and Electrical
Symptom
Possible Cause
Dust collector
1. Incorrect power supply voltage or circuit size.
does not start,
2. Power supply circuit breaker tripped or fuse
or power
blown.
supply breaker
3. Wiring broken, disconnected, or corroded.
immediately
4. Motor brushes worn out.
trips after
5. ON/OFF switch at fault.
startup.
6. Motor or motor bearings at fault.
Dust collector
1. Filter element at fault.
stalls or is
2. Motor wires connected incorrectly.
underpowered.
3. Motor brushes worn out.
4. Motor overheated.
5. Extension cord too long.
6. Motor or motor bearings at fault.
Dust collector
1. Motor or component loose.
has vibration
or noisy
2. Motor mount loose/broken.
operation.
3. Motor fan rubbing on fan cover.
4. Motor bearings 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.
Operations
Symptom
Possible Cause
Intermittent,
1. Suction tube has been clogged from a
clogging, or no
contaminant.
media spray at
the blast gun;
or striping is
2. Incorrect media.
occurring on
the workpiece.
3. Worn or incorrect blast tip.
Model G0708 (Mfd. Since 12/23)
Troubleshooting
Possible Solution
1. Ensure correct power supply voltage and circuit size.
2. Ensure circuit is free of shorts. Reset circuit breaker or
replace fuse.
3. Fix broken wires or disconnected/corroded connections.
4. Remove/replace brushes (Page 31).
5. Replace switch.
6. Replace motor.
1. Clean filter(s)/empty bag(s) (Page 28).
2. Correct motor wiring connections.
3. Replace motor brushes (Page 31).
4. Clean motor, let cool, and reduce workload.
5. Move machine closer to power supply; use shorter
extension cord.
6. Replace motor.
1. Replace damaged or missing bolts/nuts or tighten if
loose.
2. Tighten/replace.
3. Fix/replace fan cover; replace loose/damaged fan.
4. Test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
1. Replace LED light(s).
2. Test/replace switch.
3. Repair for open or shorted wiring connections.
Possible Solution
1. Cover blast tip and press foot pedal to use air
pressure to purge foot valve and suction system.
Repeat this step periodically during blasting
operations
2. Verify that the media chosen is the correct material for
your blasting operation (Page 24), and that the media
is not worn out or contaminated with moisture. Screen
or replace media as required.
3. Disconnect machine from air and inspect blast tip for
wear and rotate
⁄
- turn to unworn tip area. Replace or
1
4
install with correct blast tip.
-29-
Advertisement
Table of Contents
