73
failure.
Failure of return
throttling check valve.
7. Incorrectspecification
of lubricating oil
Update spring or seal ring.
Replace something new.
Please refer to Section 6-1 for oil number check
and oil replacement.
(
7
)
1. Three-phase solenoid valve
failure.
2. Intelligent controller failure.
3. Air intake valve bad
operation.
4. Poor operation of pressure
maintenance valve.
5. Valve fault.
6. Intake valve servo cylinder
clogged.
7. Control pipeline leakage
Replace something new.
Replace something new.
Remove and clean and add lubricating grease.
Remove check seat and check disc for wear,
Check to see if the valve is clogged.
Inspection, disassembly, cleaning.
Check leak location and lock
(
8
)
Cannot empty the
unit, the gauge
pressure still
maintains the
working pressure or
continues to rise, the
safety valve
movement
Air intake valve bad
operation.
Discharge solenoid valve
failure.
Servo cylinder
diaphragm breakage.
Pressure sensor failure
Remove and clean and add lubricating
grease.
Maintenance and replacement if necessary.
Overhaul and replacement.
Replacement
(
9
)
Compressor air
volume below normal
value
1. Intake filter blockage.
2. Air intake valve bad
operation.
3. Poor operation of pressure
maintenance valve.
4. Oil separator clogging.
5. Drain valve leakage.
6. The setting of the stabilizer
valve is wrong.
7. Increase in the amount of
gas used by the user or leakage
1. Clean or replace.
2. Remove and clean and add lubricating
grease.
3. Remove check seat and check disc for wear,
Such as wear replacement, such as spring
fatigue replacement.
4. Overhaul and replace ifnecessary.
5. Overhaul and replace ifnecessary.
6. Check and replace if necessary.
Eliminate leakage or increasecompressor.
(
10
)
Frequent empty and
heavy unit
1. Pipeline leakage.
2. Pressure differential setting
is too small.
3. Air consumption instability.
4. The air supply port is
provided with a pipeline check
valve
1. Check the leak location and lock.
2. Reset (general pressure difference is
0.15-0.2MPa).
3. Increase the capacity of gas storage tanks.
4. Demolition
Summary of Contents for Quan Wei
Page 1: ...TaiWan QuanWei Screw type air compressor Using and Maintenance Instructions ...
Page 12: ...8 ...
Page 81: ...77 ...
Page 82: ...78 8 2 2 QWL 15A 20A 8 2 3 QWL 30A 40A ...
Page 83: ...79 8 2 4 QWL 50A 60A ...
Page 84: ...80 8 2 5 QWL 75A 100A ...
Page 85: ...81 8 2 6 QWL 150A 175A ...
Page 86: ...82 9 0 Circuit diagram ...
Page 87: ...83 9 1 MAM 860 880 Circuit diagram 9 2 MAM 890 Circuit diagram ...
Page 88: ...84 9 3 MAM 6080 Circuit diagram ...
Page 89: ...85 Screw Air Compressor operation record tale ...