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AEC/Appllcatlon Engineering
Operation
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Don't run the pump at speeds faster than set specifications.
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Don't require the pump to develop pressures higher than set specifications.
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Don't operate the pump at temperatures above or below the limits in the set specifications.
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Don't operate the pump without all guards fully in place.
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Don't operate the pump without a pressure relief valve installed on the pump or the
discharge piping; make sure the valve is installed and set correctly.
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Don't exceed set specifications for temperature and pressure of fluids in the jacketed areas
of the pump.
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Don't use the pump in a system that includes a steam blow or an air or vapor blow or purge
without provision for over speed shutdown if the pump begins acting like a turbine and over
speeds the drive motor.
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Do have spare parts, pumps, or standby units available, especially if the pump is an
essential part of a key operation or process.
Maintenance
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Do make sure that the drive motor is locked out when performing maintenance on the pump
to prevent accidental starts.
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Do make sure that the pump has been drained, flushed, vented, and cooled before
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disassembly if it has handled corrosive, flammable, hot, or toxic liquids. See Section 6-3 on
Page 46 for more information.
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Don't drop parts during disassembly. For example, the idler can slip from the pin during
pump head removal, damaging the idler and possibly causing personal injury.
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Don't stick your fingers in the pump ports! Rotating parts can cause injury.
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Don't spin the idler on the idler pin. Fingers may jam between teeth and crescent.
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Do remember to follow a few simple preventive maintenance procedures, such as periodic
lubrication, end clearance adjustment, and internal parts examination. You can extend the
service life of your pump by practicing preventive maintenance.
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Do obtain, read, and keep maintenance instructions furnished with your TDH unit.
Page 68
TOH True Temp"" Serles Hot 011 Temperature Control Units
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