7 Servicing/Maintenance
55 of 72
Sewatec (60 Hz)
K
Fig. 27:
Reference dimension "K” from shaft end to KSB double cartridge seal
Table 22:
Reference dimension "K"
Size
Reference dimension "K"
[inch]
[mm]
50-215/216
65-215/217
80-215/216/217
100-215
0,944+/- 0,02
24+/- 0,5
65-216
80-216
1,259+/- 0,02
32+/- 0,5
50-250
65-250/252/253
80-250/252
100-250/252/254
1,496+/- 0,02
38+/- 0,5
50-251
65-253
80-253/315/316
100-251/253/255/315/316/317
125-315/317
150-315/317
200-315/316/317/318
1,614+/- 0,02
41+/- 0,5
7.5.4 Fitting the impeller
914.10
550.23
230
Fig. 28:
Fitting the impeller
ü
The shaft and rolling element bearings have been properly installed.
ü
The mechanical seals have been properly installed.
1.
Slide impeller 230 onto the shaft end.
2.
Screw in impeller screw 914.10 and disc 550.23. Tighten them with a torque
wrench.
NOTE
On shafts without a Helicoil thread insert secure the impeller screw with
Loctite 243.