Rev: 09.2017
EBS Pre-Engineered Skid IOM
8
MAINTENANCE
Before beginning any maintenance procedure, carefully read the safety instructions chapter of this document and
make sure that all the workers at the filtration site are fully aware of and comply with, these and any other local
safety instructions.
General inspection of the filter operation
This is the visual basic general inspection procedure of the filter for proper operation. It should be done
regularly and prior to any scheduled maintenance procedure.
Press the test button, this will initiate the self-cleaning cycle; Check that the exhaust valve opens, that the
scanner moves upwards, and when it reaches the top limit switch - verify that the exhaust valve closes.
Weekly maintenance
Visual Check:
1.
Check that the filter operates properly by following the General Inspection of the Filter Operation as
described above.
2.
Visually check that there is grease on the drive shaft, and drive bushing.
3.
Visually check the suction scanner for any leakage.
4.
Visually check the filter housing, the valves and the check-valves for leakage.
5.
Check the filter for loosen bolts.
If Necessary:
1.
Disconnect and lock the filter’s power supply.
2.
Disconnect and lock the filter’s compressed air supply.
3.
Disconnect the filter from the water supply and drain the filter housing.
4.
If it is necessary, add grease to the filter’s suction scanner shaft.
5.
Take care of any leakage from the scanner shaft. If necessary, replace the Sealing Flange Internal O-Ring
(5 on page 23) as described at the following list:
6.
Reconnect the filter carefully and safely to its water, air and power supply.
7.
Perform a General Inspection of the Filter Operation as described above.
Changing the sealing flange internal O-ring
1.
Close the inlet valve to the filter and release any residual pressure.
2.
Disconnect and lock the filter’s power supply.
3.
Disconnect and lock the filter’s compressed air supply and release any residual pressure.
4.
Verify that the Suction Scanner is in its lower position. If not remove the electrical motor rear fan-
cover, turn the fan manually till the scanner’s limit switch plate reaches the lower limit switch.
5.
Remove the Split pin (19) and pull out the connecting pin (18).
6.
Turn the motor-fan till the drive shaft reaches half way of its movement. The drive shaft is now
separated from the Suction Scanner.
7.
Unscrew nuts (20 on page 23) and pull the sealing flange (4 on page 23).
8.
Remove the used internal O-ring and clean the O-ring seat.
9.
Insert a new O-ring (5 on page 23)
10.
Apply some grease to the external O-ring and to the shaft.
11.
Tighten the sealing flange nuts (20 on page 23).
12.
Re-connect the drive shaft to the suction scanner shaft.
13.
Reassemble the motor fan cover.
14.
Make sure that the filter is correctly reassembled; re-connect the power and the compressed air.
15.
Operate the control board and open the filter inlet valve.
