DALGAKIRAN TIDY 20B-50, Operator'S Handbook Manual, Page: 86 / 157

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2- THE SEPARATOR ELEMENT IS DAMAGED
(If the scavenge is working properly, the probability of the scavenge element being damaged
increases). If you see oil coming from the air tank during water discharge, replace the
separator element.
3- THERE IS LEAK AT THE OIL CIRCUIT
Check the oil circuit connections of the compressor. At the point of leak, oil deposits might be
seen on floor. By checking the coupling and connections at oil circuit, tighten them. If the oil
leak is not prevented; Inform the service.
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7- MAIN MOTOR OVERLOAD RELAY STOPS THE COMPRESSOR
1- OVERLOAD RELAY ADJUSTMENT IS CHANGED
Observe that the overload relay is adjusted according to the motor nameplate. observe that
(on full load) the motor current is normal and stable (the current difference between the
phases should be less Than 10 %) If the relay opens before the adjusted value it is defected.
Replace it.
2- THE VOLTAGE IS LOW
If the line voltage is less 5 % or lower than the adjusted voltage of compressor, the problem
may arise from the established power of your facility.
3- THE COMPRESSOR EXCEEDS THE ADJUSTED PRESSURE
See item 5.
4- THE SEPARATOR IS CLOGGED
When the compressor is working at full load, observe the internal pressure gauge. If the
internal and external pressure difference is close to 1.5 bar, separator is clogged. Replace the
separator.
5- THE AIREND UNIT IS DAMAGED
It can be understood by noisy operation ; Inform the service.
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6- THERE IS A PROBLEM AT MAIN MOTOR
If the operating currents are above normal the motor may be excessively overloaded, listen to
the sound of motor and also check the body temperature. The motor may be burned down.
There may be bearing problem ; Inform the service.
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8- FAN MOTOR OVERLOAD RELAY STOPS THE COMPRESSOR
1- OVERLOAD RELAY ADJUSTMENT IS CHANGED
See item 7.1
2- THE PANEL FILTER OR THE COOLER CELLS ARE BLOCKED. THE AIR INLET IS
OBSTRUCTED
(Ventilation problem)
Check that the compressor is ventilated good.
Replace the blocked panel and intake filters.
clean the cooler and fan impellers.
Do not close hot air outlet.
If you are using culvert, do not reduce the dimension.
3- THERE İ S A PROBLEM IN YOUR FAN MOTOR
If the currents are above normal the motor may be excessively loaded. Listen to the noise of
motor while the cowlings are open and check the body temperature. The motor may be burned
down. There may be a bearing problem. Inform the service.
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9- COMPRESSOR SHUTDOWN BECAUSE OF OVERPRESSURE
1- PRESSURE ADJUSTMENT HAS BEEN CHANGED OR PRESSURE SWITCH IS DEFECTIVE
Check the pressure adjustment / safety pressure switch function.
2- OVERPRESSURE IS COMING FROM ANOTHER COMPRESSOR
Separate the compressor lines. (If there is a different working pressure settings)
3- THE ADJUSTMENT OF SAFETY PRESSURE SWITCH HAS BEEN CHANGED
Check the adjustment of the pressure safety switch. When the adjusted pressure is reached, it
should stop the compressor. If the switch does not change contact it is defected. Replace it
4- THE SEPARATOR IS CLOGGED
See item 7.4
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