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13-8-638 Page 42
SECTION 9
TROUBLESHOOTING
SYMPTOM
POSSIBLE
CAUSE
REMEDY
Compressor fails to start
1.
Wrong lead connections.
1.
Change leads.
2.
Blown fuses in control
box.
2. Replace
fuse.
3. Motor
starter
overload
heaters tripped .
3.
Reset and investigate
cause of overload.
4.
Pressure in reservoir.
4.
Inspect blowdown valve.
5. Emergency
stop
depressed.
5. Release
button.
Compressor starts but
stops after a short time
1. High
discharge
temperature.
1.
See “High Discharge Air
Temperature,” this
section.
2. High
separator/
high
compressor temperature
light on.
2.
See “High Discharge Air
Temperature”, this
section.
3.
Blown fuse in starter/
control box.
3. Replace
fuse
(investigate
if fuses continue to blow).
4. Motor
starter
overload
heaters trip.
4.
Reset and investigate
cause of overload.
Compressor does not
unload (or load)
1. Improperly
adjusted
control.
1.
Refer to SECTION 4,
page 17 and adjust
control.
2.
Air leak in control lines.
2.
Determine source of leak
and correct.
3.
Restricted control line.
3.
Clean control lines.
4.
Faulty inlet valve solenoid.
4
Replace solenoid valve.
Compressor cycles from
load to unload
excessively
1. Insufficient
receiver
capacity.
1.
Increase receiver size.
2.
Restriction in service
piping.
2.
Inspect and clean service
piping.
3.
Restriction in control
tubing.
3.
Inspect and clean control
tubing.
4. Plugged
aftercooler.
4. Inspect
and
clean
aftercooler.
Compressor runs
unloaded too often
1.
Volume of compressed air
system too small.
1.
Check the volume of the
piping and air receivers.
An additional air receiver
may be required.
2.
Pressure range too
narrow.
2.
Extend pressure range.
Содержание 40 HP
Страница 9: ...13 8 638 Page 2 Figure 1 2 COMPRESSOR ILLUSTRATION 300EFD797 A Ref Drawing...
Страница 12: ...13 8 638 Page 5 DECALS 206EAQ077 212EAQ077 218EAQ077 211EAQ077 207EAQ077...
Страница 13: ...13 8 638 Page 6 DECALS 216EAQ077 217EAQ077 222EAQ077 221EAQ077 208EAQ077...
Страница 29: ...13 8 638 Page 22 Figure 4 3 WIRING DIAGRAM FULL VOLTAGE 303EFD546 D Ref Drawing Page 1 of 2...
Страница 30: ...13 8 638 Page 23 Figure 4 4 WIRING DIAGRAM FULL VOLTAGE 303EFD546 D Ref Drawing Page 2 of 2...