Figure 7:
Figure 8:
Table 3: Required front clearance
HDB210 Impeller Stack
Required Front Clearance
1st Stack (2 stages)
+.030 ± .005"
2nd Stack (3rd to 8th stages)
+.030 ± .005"
3rd Stack (9th to 14th stages)
+0.20 ± .005"
16. Continue adding diffusers and impellers checking each one for proper Front Clearance. Shim each
impeller as necessary. Install intermediate bearings (268) with intermediate bearing shaft sleeves
(157B) where required. Refer to Table 5 for intermediate bearing location
Table 4: Intermediate bearing location
Size
Stage
Bearing:
Stage
Bearing
Stage
HDBZl0-6
2
1
4
-
-
HDB210-8
2
1
6
-
-
HDBZl0-10
2
1
6
1
2
HDB210-l2
2
1
6
1
4
HDB210-l4
2
1
6
1
6
7.4 Reassembly of liquid end
3335 Installation, Operation and Maintenance Instructions
17
