ITT Goulds Pumps XHD, Инструкция по установке, эксплуатации и обслуживанию

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Commissioning, Startup, Operation, and Shutdown
XHD Installation, Operation, and Maintenance Manual 50
After the clearances have been checked/set, the v-belt or coupling guard can be re-installed.
Refer to the appropriate guard installation instructions specific to your unit(s).
Impeller to Suction liner / Seal Ring Front clearance
0.02 inches
0.50 mm
Install the V-belt drive guard
NOTICE:
The driver guard used in an ATEX classified environment must be constructed from a spark
resistant material.
1. Assembly the drive guard as necessary. Use appropriate hardware.
2. Secure the drive guard in place to the foundation or baseplate and pump as necessary.
Use appropriate hardware.
Figure 30: V-belt drive guard
V-Belt drive operation
V belt drive installation checks
Use the following steps and guidelines to make sure that the v-belt drive is properly installed
and that the belts are properly tensioned.
1. Operate the drive for a few minutes as the belts seat into the sheave grooves.
2. Observe the operation of the drive under its highest load condition, which is usually at
startup.
3. A slight bowing of the slack side of the drive indicates proper tension.
4. The following indicate improper belt tensioning:
a) If the slack side of the drive remains too taut during peak load, the drive is too tight.
b) Excessive bowing or slippage of the slack side indicates insufficient tension.
c) If the belts squeal as the motor is started, or at some subsequent peak load, the belts
are not tight enough to deliver the torque that is demanded by the motor.
5. If any of the conditions that are listed under (4) are evident, stop the drive and readjust the
belts.
6. If conditions persist, check the sheave alignment as outlined in the previous sections.
7. The belt tension on a newly installed drive should be checked throughout the first day of
continuous operation by observing the slack side span. After a few days of operation, the
belts will fully seat themselves in the sheave grooves, and further readjustment may be
necessary. Use the steps and guidelines above as necessary.