Glenko MAM-870, Instruction Manual

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Instruction Manual ZS100T, ZS150T & ZS200T Series II (MAM-870) Senator Industrial Air Compressors
26
Symptom Possible Cause Corrective Action
System pressure
(tank pressure) is
too high.
1. Unloading parts (such as solenoid
valve ‘C’ in air inlet control valve,
vent valve, etc.) are faulty.
2. Pressure settings are too high.
3. Leakage in control air piping.
4. The filter in control air piping is
blocked.
5. Oil-air separator is blocked.
6. Minimum pressure valve is faulty.
7. Pressure sensor is faulty.
1. Check unloading parts for normal
operation.
2. Check the controller’s pressure
settings.
3. Check and rectify leakage.
4. Clean or replace filter assembly.
5. Replace oil-air separator.
6. Check and repair minimum
pressure valve.
7. Check or replace pressure sensor.
Compressed air
has relatively high
oil content and oil
refilling period is
shortened.
1. Oil addition is excessive and oil
level in oil-air tank is too high.
2. Filter or orifice in oil return pipe is
blocked.
3. Filter element or packing washer
in oil-air separator is damaged.
4. Oil return pipe in oil separator
element is damaged.
5. Leakage in oil piping system.
6. Oil grade is poor causing
excessive foaming.
1. Check oil level and drain out any
excess.
2. Clean filter element and orifice.
And if necessary, replace them.
3. Check oil-air separator. If it is
damaged, replace it.
4. Replace oil return pipe.
5. Check oil piping system and
eliminate leakage.
6. Replace oil with correct grade.
Oil mist leaks out
of air filter during
shutdown.
1. Before shutdown, no unloading is
performed or unloading period is
too short.
2. Minimum pressure valve is faulty.
3. Venting of oil-air tank is
incomplete.
1. Check air inlet control valve.
Check electrical circuits such as
shutdown time delay, etc.
2. Check and repair minimum
pressure valve.
3. Check vent valve.
The switching
between
unloading and
loading is too
frequent.
1. Air piping leakage.
2. The difference between the unload
and load pressure settings is too
small.
3. Air consumption is unstable.
1. Check and rectify air leakage.
2. Check the controller’s pressure
settings.
3. Increase the air storage capacity.
If necessary, install pressure
regulating valve downstream from
the air tank.