7 Servicing/Maintenance
49 of 72
Sewatec (60 Hz)
433
932.59
412.28
Fig. 19:
Removing the mechanical seal
ü
The back pull-out unit and the impeller have been removed as described above.
1.
Fix discharge cover 163 to bearing bracket 330 using suitable bolts/screws and
washers.
2.
Remove O-ring 412.28 from the shaft.
3.
Slide puller 101-47 over the shoulder of mechanical seal 433 and lock with ring
500.
4.
Press forcing screw 914.52 against shaft 210 and pull mechanical seal 433 out of
discharge cover 163.
7.4.7 Removing the shaft and rolling element bearings
360.02
932.03
210
321.01
321.02
932.20
330
Fig. 20:
Removing the shaft and rolling element bearings
ü
The back pull-out unit, impeller and mechanical seal have been removed as
described.
1.
Remove cover 360.02 and circlip 932.02.
2.
Push shaft 210 with deep groove ball bearings 321.01/02 out of the bearing
bracket towards the drive end.
3.
Remove circlip 932.20.
4.
Pull deep groove ball bearings 321.01/02 off the shaft.
5.
Remove the stationary seat of drive-end mechanical seal 433.01 from bearing
bracket 330.
6.
Clean all components and inspect them for signs of wear.
