412A
101
126
Figure 126: Install shaft sleeve
2.
Mark the shaft and sleeve at the face of the seal chamber.
3.
Continue the complete reassembly of the pump, except for the mechanical seal.
4.
Set the impeller clearance.
Refer to the Impeller Clearance Setting section for more information.
5.
Scribe a line on the marked shaft and sleeve at the face of the seal chamber.
6.
Remove the casing, the impeller, and the seal chamber.
7.
If applicable, slide the gland, with the stationary seat and gland gasket installed, onto the shaft until
it contacts the inboard labyrinth oil seal.
8.
Install the mechanical-seal rotary unit according to the manufacturer's instructions.
Use the scribed line and the seal-reference dimension.
9.
Reinstall the seal chamber.
10. Slide the gland on the seal-chamber studs and secure them with the gland nuts.
Tighten the nuts evenly so that the gland is seated on the seal-chamber pilot and is perpendicular to
the shaft.
11. Complete the reassembly of the pump.
6.6.10.5 Seal the shaft with a conventional outside-component mechanical
seal
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 physical
injury. Never operate the pump without liquid supplied to the mechanical seal.
1.
Assemble the seal chamber.
a) Install the seal-chamber cover or backplate (184) and fasten with nuts (370H).
6.6 Reassembly
Model CV 3196 i-FRAME Installation, Operation, and Maintenance Manual
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