amiad 2-84, Инструкции по установке, эксплуатации и обслуживанию, Страница: 8 / 18

8 amiad
filtration systems
MAINTENANCE
General inspection
In order to check the proper operation of the filter, close the low pressure 1/4" valve to the pressure differential
switch for a period of 5 seconds. This will initiate the self-cleaning cycle: Check that the exhaust valve opens,
that the scanner moves forwards, and when it reaches limit switch "B" - verify that the exhaust valve closes.
Weekly maintenance
1. Check that the filter operates properly, following a general inspection.
2. Clean the 3/4" filter (close the 3/4" valve and operate a flushing cycle in order to release pressure and then
open the bowl).
3. Check that there is grease on the drive shaft, and drive bushing. Add grease if necessary.
4. Take care of any leakage from the scanner shaft. If necessary, replace the Sealing Nut Internal O-Ring (6.9)
Changing the sealing nut internal O-ring:
1. Close the inlet valve to the filter and release the pressure.
2. If the Suction Scanner is in the outer position, operate a flushing cycle and bring it to the inner position.
3. Remove the Split pin (8.4) and pull out the connecting pin (8.3).
4. Operate a flushing cycle.
5. Stop the motor operation when the drive shaft reaches half way of its movement. The drive shaft is now
separated from the Suction Scanner.
6. Unscrew the sealing nut (6.8).
7. Remove the used internal o-ring and clean the o-ring seat.
8. Insert a new o-ring (6.9)
9. Apply some grease on the external o-ring and on the shaft.
10. Tighten the sealing nut (6.8).
11.Re-connect the drive shaft to the suction scanner shaft.
12. Operate the control board and open the filter inlet valve.
Maintenance prior to long term cessation of filter operation
The following must be done if the filter will not operate for more than a month.
1. Operate flushing cycle (If possible, with a closed downstream valve).
2. Disconnect the control board from the power.
3. Release pressure from the filter.
4. Grease the drive shaft and the drive bushing.
5. Clean the 3/4" control filter.
6. Clean the coarse screen through the service port.
Maintenance prior to re-operation
1. Connect the control board to the mains.
2. Check proper operation of the filter.
3. Grease the drive shaft and the drive bushing.
4. If necessary change the Sealing Nut Internal O-Ring.
IMPORTANT !!
THE DRIVE SHAFT MUST BE LUBRICATED WITH HEAVY-DUTY, WATER RESISTANT GREASE, THAT
WILL NOT OXIDIZE. (SHELL, DARINA EP-2 OR SIMILAR).
Cleaning the coarse screen:
1. Close the filter inlet valve.
2. Release pressure from the filter by operating a flushing cycle.
3. Remove the service lid (5) by disconnecting the bolts (5.2) from the nuts (5.4)
4. Clean the coarse screen:
- To remove large particles insert your hand into the coarse screen area.
- To remove fine particles and organic matter rinse the screen. Afterwards, partially open the inlet valve and
let water flow out.