6.6.2 Install the impeller
CAUTION:
Risk of physical injury from sharp edges. Wear heavy work gloves when handling impellers.
For the fitting threads and for tight tolerances, use a suitable anti-seize compound. Use this, for ex-
ample, between the shaft sleeve and the shaftmotor shaft and pump shaft or between the impeller
and the shaft. This makes the assembly and the next disassembly easier to perform.
NOTICE:
Anti-seize compounds must be compatible with the pumped fluid.
Perform these steps in order to install the impeller:
1.
Insert the impeller key (940.31) in the shaft (210).
2.
Slide the impeller (230) onto the shaft.
3.
Secure the rotor at the coupling end and tighten the impeller nut (922) (right-threaded).
4.
Tighten the impeller nut to the torques listed in the Torque values table.
922
412.21
230
210
940.31
Figure 53: Impeller installation
NOTICE:
Crush hazard. Make sure that the back pull-out assembly cannot tip over.
6.6.3 Shaft sealing
WARNING:
The mechanical seal used in an Ex-classified environment must be properly certified.
CAUTION:
Running a mechanical seal dry, even for a few seconds, can cause seal failure and physi-
cal injury. Never operate the pump without liquid supplied to the mechanical seal.
Before proceeding with seal installation, complete the ICO assembly worksheet on shim measure-
ment method and installation. Follow Seal the shaft with a cartridge mechanical seal.
6.6 Reassembly
Model IC, ICI, ICH, ICIH Installation, Operation, and Maintenance Manual
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