Comet DSG-5 EX, User Instructions

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ROUTINE MAINTENANCE TABLE
OPERATION MACHINE PART PERIODICITY
Boiler steam blow-off - Every day The user
Visual control Mac gun
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Electric parts
Every week The user
Sealing of the water and steam con gun Every mont The user
General cleaning - Every week The user
SUPPLEMENTARY MAINTENANCE TABLE
OPERATION MACHINE PART PERIODICITY
Boiler cleaning (disassemble the resistors and re-
move the limestone)
Every year QUALIFIED TECHNICIAN
TROUBLES
CAUSES SOLUTIONS
1 THE GENERATOR PRESSU-
RE DOES NOT INCREASE
- Resistance contactor
- Pressure switch
- Resistance
- Check the resistance contactor
- Check the pressure switch
- Check the resistance
2 THE PUMP CANNOT RUN
2.1 It loads no water
2.2 Sound allarm
2.3 It does not run
- The water tank is empty
- Pump
- Lack of water in the tank
- water solenoid valve
- Pump
- Water level probe
- Fill the tank
- Replace the pump
- Fill the tank
- Replace the pump
- Check and eventually replace it
- Clean the probe
3 THE SAFETY VALVE OPENS
REPEATEDLY
3.1 It keeps on
loading water
- Boiler water level probe
- Check the electronic level
- Pressure switch
- Resistance contactor
- Safety valve
- Clean the probe
- Replace it
- Replace the pressure switch
and check that the connection
copper tube is free from
incrustations.
- Replace the resistance contactor
- Replace the safety valve
WARNING :
Supplementary maintenance should only be carried out by a QUALIFIED TECHNI-
CIAN, following the table below (guideline only):