Coltri Sub MCH 13/ET Compact Instruction Manual page 62

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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 ....................................................................................................................... 62
12.1 12.1
12.1 12.1 12.1
List of faults
Table 1 below lists all the faults that may arise during operation and the relative solution.
Table 1
The electric motor does not start
The safety valve of the 1
The safety valve of the 2
The speed of rotation and
capacity are reduced
The capacity is reduced without a reduction
in the speed of rotation
Smell of oil in the air
The compressor overheats
TR TR OUBLESHOO OUBLESHOO
TR TR TROUBLESHOO OUBLESHOO OUBLESHOOTING
PROBLEM
st stage discharges The 2
nd stage discharges The 3
The connections are loose or the gaskets
The piston or compression rings are worn
The valves are not completely closed
(causing an overload of another stage)
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TING TING
TING TING
CAUSE
A phase is missing
nd stage valves are not working
rd stage valves are not working
The motor power is insufficient
The belt slips
The valves are not working
The 3 rd stage piston is worn
leak
The intake filter is blocked
The intake extension is bent
The filter cartridge is worn
The compression rings are worn
Wrong direction of rotation
The cooling pipes are dirty
SOLUTION
Check the fuses
Perform maintenance operations or
replace the valves
Replace them
Check the motor and the power line
Tighten the belt
Contact the technical assistance service
Contact the technical assistance service
Check the leaks with water and soap and
eliminate them
Replace it
Straighten it, use a semi-rigid pipe
Contact the technical assistance service
Replace it
Contact the technical assistance service
Check the direction of rotation by inverting
the two phases in the plug
Contact the technical assistance service
Contact the technical assistance service
Troubleshooting