Installation & Operation Manual
SAF-X
01.2022
/
001301
-
910101
35
Changing the Shaft Sealing Assembly:
1.
Changing the Shaft Sealing Assembly (26) is recommended as preventive maintenance
or when it is significantly leaking.
2.
Dismantle the filter and pull out the suction scanner (see above instructions).
3.
Remove the Bearing Stopper (27)
4.
Remove the small drainage tube.
5.
Use open wrench #41 or big adjustable wrench to screw out the bearing.
6.
Change the O-ring (106) if required.
7.
Screw back a new bearing, carefully tighten it until the drain port pointing down.
8.
Put back the drainage tube and lock the bearing position with the stopper.
Note:
The Shaft Sealing Assembly is replaced as one piece. It is impossible to change
any of its internal parts and seals.
Removing the drive unit:
1.
Close the inlet and outlet valves of the filter and release pressure.
2.
Disconnect power supply.
3.
Remove the drive shaft cover (39) by unscrewing bolts 215.
4.
Remove the drive unit (311&312) by unscrewing bolts 211 and their nuts (214). note the drive shaft key 33), it
may fall out of the gearbox (311).
Note:
It is recommended that the power cable of the motor will be long enough to allow removing of the drive
unit and put is nearby without disconnecting the cable.
5.
At this stage it is possible to adjust the Limit Switches (315) position by manually turning the drive shaft by means
of 17 mm wrench.
6.
Re-assemble in reverse order. Verify the existence of the drive shaft key. Lubricate the drive shaft (32) and
gearbox (311) with Multi-Purpose Grease (ML-03).
Limit Switches adjustment:
1.
Remove the drive unit (311&312) as described above.
2.
Slightly release bolts (216) and slide the
inner limit switch
(315) toward the filter body.
3.
Turn the drive shaft inward (CW) till the end and then back 3/4 of a turn.
4.
Slide the limit switch backward until hearing the switching “click”. Use
multi-tester to verify the exact contact
point.
It is possible also to watch the input LED indicators in the PLC to recognize the contact.
5.
Tighten the bolts (216) and repeat the test once again.
6.
Slightly release bolts (216) and slide the
outer limit switch
(315) toward the drive unit.
7.
Turn the drive shaft outward (CCW) till the end and then back 3/4 of a turn.
8.
Slide the limit switch forward until hearing the switching “click”. Use multi
-tester to verify the exact contact
point.
It is possible also possible to watch the input LED indicators to recognize the contact.
9.
Tighten the bolts (216) and repeat the test once again.
Note:
The limit switches are NC (normally closed), that means that when the switch is activated the signal is zero (0)
and when it is not activated, the signal is one (1).
