FIGURE 11A-4
(735)
HEX NUT
1
2
3
4
A
5
6
7
8
9
10
11
12
13
1.
Driveshaft
2.
Driver key, supplied by motor vendor
3.
Driver hub
4.
Spacer
5.
Adjusting plate
6.
Pump hub
7.
Headshaft
8.
Pump key
9.
Capscrew
10. Hex nut
11. Hex nut
12. Capscrew
13. Split ring
Figure 14: Spacer coupling (Type AS)
4.10.3 Adjust the impeller for a solid-shaft driver
IMPORTANT:
The determination of the driver-shaft end-play can be critical and should be added to the
impeller setting noted in this topic. For larger pumps over 8.00 in. (20.32 cm), this amount might not be
sufficient. Refer to the pump outline drawing for details.
When impellers are reset, you must also reset the seal.
1.
Complete these steps based on your impeller type:
If your impeller is an...
Then...
Open impeller
1.
With the impeller resting on the bottom of the bowl assembly, turn
the adjusting plate down until it reaches the bottom of the shaft
thread.
2.
Install the coupling bolts through the driver hub, adjusting plate, and
pump hub, and hand tighten the bolts evenly. Measure and record
the gap between the adjust plate and the driver hub flange faces.
3.
Tighten the coupling bolting evenly in a star pattern and in small in-
crements until the pump rotor begins to turn free. This indicates that
the impeller is just lifted off from the bowl assembly. Measure and
4.10 Install a solid-shaft driver
40
Model VCW Installation, Operation, and Maintenance
Summary of Contents for Goulds Pumps VCW
Page 1: ...Installation Operation and Maintenance Model VCW ...
Page 2: ......
