Inspection And Maintenance; Obligations Of The Operator; Daily Checks; Monthly Checks - Graf one2clean Manual De Instrucciones

5. Inspection and Maintenance

5.1

Obligations of the Operator

The system must always be turned on. The operator is obliged to ensure the fault-free operation of the
system. Almost all operational faults lead to a deterioration of the system's cleaning performance. These
should therefore be detected at an early stage and eliminated immediately by you or a qualified service
technician.
5.1.1

Daily checks

The system should be checked daily for correct operation. The system is operating correctly when the
operating control is lit up green and no warning signal can be heard.
5.1.2

Monthly checks

• Visual inspection for any sludge output, turbidity or discoloration in the flow
• Check inflows and outflows for blockages (visual inspection)
• Read the operating hours counter on the air compressor (total operating hours), the ventilation (Y3
valve) and the clear water run-off (Y4 valve) and record in the operating log
5.2 Maintenance by a Specialist Company
Maintenance is carried out by a specialist company (experts) at least twice a year (approximately every 6
months). The time intervals and tasks specified by the local water authority in the consent permit under
water laws also apply. For this purpose, the system owner must complete a maintenance contract with a
qualified specialist.
The following tasks should be carried out in relation to maintenance:
• Inspection of the log book with determination of the regular operation (target-actual comparison),
• Check the air filter of the air compressor,
• Maintenance of the air compressor according to the manufacturer's instructions,
• Functional check of the air compressor and stepper motors,
• Carry out general cleaning work, e.g. removal of deposits,
• Check for adequate ventilation,
• Examination of activation tank:
– Oxygen concentration (O
– Sludge volume ( < 900 ml/l),
If the sludge volume is greater than 900 ml/l, the sludge must be removed.
Maintenance tasks carried out, any damage detected or repairs made as well as other instances should
be summarised by the maintenance company in a maintenance report.
5. Inspection and Maintenance
/l > 2 mg), adjust the operating time of the compressor if necessary,
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