90
TROUBLESHOOTING
12
This chapter describes the faults that may arise during machine operation.
For each fault, the cause and the solution to be adopted are specified.
12.1
List of faults ........................................................................................................................ 90
12.1
List of faults
PROBLEM
CAUSE
SOLUTION
The electric motor does not start
A phase is missing.
Check the fuses.
The safety valve of the 1
st
stage discharges
The 2
nd
stage valves are not working.
Perform maintenance operations or
replace the valves.
The safety valve of the 2
nd
stage discharges
The 3
rd
stage valves are not working.
Replace them.
The speed of rotation and
capacity are reduced
The motor power is insufficient.
Check the motor and the power line.
The belt slips.
Tighten the belt.
The capacity is reduced without a reduction
in the speed of rotation
The valves are not working.
Contact the technical assistance service.
The 3
rd
stage piston is worn.
Contact the technical assistance service.
The connections are loose or the gaskets
leak.
Check the leaks with water and soap and
eliminate them.
The intake filter is blocked.
Replace it.
The intake extension is bent.
Straighten it, use a semi-rigid pipe.
The piston or compression rings are worn.
Contact the technical assistance service.
Smell of oil in the air
The filter cartridge is worn.
Replace it.
The compression rings are worn.
Contact the technical assistance service.
The compressor overheats
Wrong direction of rotation.
Check the direction of rotation by inverting
the two phases in the plug.
The cooling pipes are dirty.
Contact the technical assistance service.
The valves are not completely closed
(causing an overload of another stage).
Contact the technical assistance service.
Table 1
Table 1 and 2 below lists all the faults that may arise during operation and the relative solution.
Troubleshooting
Содержание MCH 13/DH
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