81
EXPLANATION ON TABLE REGARDING POSSIBLE PROBLEMS
1/2
Check all fuses and the on/off switches for the motor to ensure that power is being supplied.
Check for any slow or faulty cables.
1.
A magnetic starter includes a reset button which is used to restart the motor in the event of
disruption to the power supply.
4/5
A pressure switch makes use of a diaphragm to open and close a series of points, that may
develop a hole or become dirty with use. Clean by rubbing lightly with sand paper or replace it.
See the relevant instructions for the pressure switch.
WARNING: disconnect the unit from the mains before checking the pressure switch.
6.
Low voltage is the principal cause of problems with the motor. Contact the electricity supplier for
a voltage check.
7.
Most electric motors have a screened bearing. Check specifications of the motor manufacturer.
8.
Water in the form of steam, is compressed together with the intake air and at the condensate of
the tank. The tank must be drained daily, so that it functions at maximum capacity. To effect
drainage, eliminate the tanks pressure, open the valve at the bottom of the horizontal or vertical
tank. If the compressor is equipped with a tank with automatic drainage, manual drainage should
be carried out once a week.
WARNING: do not open the drainage valve if pressure exceeds 1.7 bar (25 PSIG).
9.
The casing of the bearings and the cables must be clean, given that dirt acts as an insulator.
This can be carried out simply by blowing away the dirt or by using a wire brush.
10.
The belts must be fairly tight to enable the necessary energy to be transmitted to the compressor.
If they are too tight, the motor will overload. If by pressing on a belt the upper part is in line with the
lower part of the belt adjacent, the tension is correct. If it is necessary to adjust the tension, move
the device or the motor into the slots at the bottom of the tank until the position required is
obtained.
WARNING: before checking or adjusting the belts, disconnect the unit from the mains.
Reinstall the protection belt after having adjusted the belts.
11.
The fans (pulleys) must rotate in the direction indicated by the arrows.
12.
The compressor valves may be blocked with carbon or other external substances. To clean them,
remove the manifold and take out the valves. Remove the screws in the centre of the valve and
clean all components. Where they are seated and the disc can be wrapped in sand paper if they
are very dirty. If the result achieved is not satisfactory, replace with new components. Reassemble
and install, making sure that all components are placed in their original position.
13.
All tubes that carry air from the compressor to the tank and from the tank to the air devices must
be secure. To identify possible leaks from the joints, apply a soap solution to them.
14.
For modifications to the Pilot Valve, consult paragraph 8.4.
15.
In the event of loose joints check the Pilot Valve.
Troubleshooting
Summary of Contents for MCH 14 TECH NITROX SERIES
Page 31: ...31 Installation 3 Pass the pipe through the hole located in the rear guard Fig 29 30 28 29 ...
Page 80: ...80 Troubleshooting 12 1 1 Low pressure compressor ...
Page 85: ...85 Compression diagram High pressure compressor only air Machine diagrams 14 2 ...
Page 86: ...86 Machine diagrams 14 3 Electrical diagram ...
Page 87: ...87 Machine diagrams ...
Page 104: ...104 Pulley Crankcase and cylinder Low pressure compressor Spare parts ...
Page 105: ...105 Piston rod unit Low pressure compressor Spare parts ...
Page 106: ...106 Cylinder Valve and Filter unit Low pressure compressor Spare parts ...
Page 107: ...107 Pump unit Low pressure compressor Spare parts ...
