amiad Omega 13.5K, Руководство по установке и эксплуатации

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O M EG A F i l t e r s – I n s t a l la t io n & O p e r a t io n M a n u a l P a g e 5 o f 3 6
Maintenance
General inspection
b. General inspection
The maintenance requirements of automatic Self-Cleaning Filters are directly related to their Flushing
frequency. Flushing frequency depends on water quality (Suspended Solids and Chemistry) and flow
rate. Therefore, the frequency of scheduled routine maintenance activities should be determined during
the commissioning and first few months of operation, and should not surpass 6 months.
It is recommended to follow-up on the flushing frequency and the DP trend of the system and inspect the
filters when an un-usual change is recognized.
It is also recommended to include the filters in the routine equipment inspection “tours” of the plant, in
order to find and treat any leakage or damage as early as possible.
c. Routine inspection
For this routine inspection, it is possible to remove the Transmission gear cover (1.5 in Parts List) which
enables access to the drive mechanisms.
1. Launch flush cycle by simulating DP or by manual start.
2. Verify that the Flushing Valve is open.
3. Verify that the Transmission Gear move upwards/ downwards.
4. Verify that the Flushing Valve is close at the end of the cycle.
5. Take care of any leakage from the Sealing Nuts (7.7). If necessary, replace its Internal O-Rings (See
instructions in the next chapter).
d. Annual maintenance
A thorough maintenance operation is conducted once every year or when the filter has completed about
50,000 flush cycles.
Before beginning any maintenance procedure, carefully read the safety instructions of this document and
make sure that the staff is fully aware of, and comply with these and any other relevant local safety
instructions.
The thorough maintenance operation will include the following operations:
1. Filter Disassembly according to section f .
2. Visual inspection and evaluation of screens. Thorough cleaning instructions can be found below at
section e . Replacement is required only if there are signs of mechanical damage to the screen.
3. Replace shaft sealing set according to section g .
4. Inspect and maintain Suction Scanner according to section h .
5. Filter Assembly according to sections i .
6. Restart the filter according to section k .