Mody Pumps MSVSS, Инструкции по эксплуатации - Установка и обслуживание

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Seals:
Condition of seals shall be checked every 2500 hrs. of operation by ascertaining the
condition of oil in the seal chamber. Milky white oil indicates the presence of water in the
oil chamber and a pressure check needs to be performed.
Pressure test:
The pressure test must be performed to ensure the seal faces are properly installed during
assembly. A pressure gauge assembly is necessary to perform this test. Disassemble
pump unit until the oil chamber and oil plug is exposed. Remove plug from bearing housing
and drain oil completely. Tighten the pressure gage assembly into Oil plug hole. Pressurize
oil chamber to 5 PSI, rotate shaft by hand, and check for leaks. If no leaks are observed
and the pressure holds for 15 minutes, slowly release the pressure valve and remove the
pressure gauge assembly. If the pressure does not hold, the leak must be located and
fixed. Cleaning the seal faces and reinstalling the seals may fix the problem.
Handle seals with extreme care. Keep seal faces clean. Do not scratch seal faces.
Do not hammer on seal pusher.
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Ensure that the pump is properly trimmed at all times. as the impeller gets worn out, the
capacity of the unit will drop, and it is essential to maintain the original clearance
between the impeller and diffuser to obtain satisfactory performance. This can be
adjusted by inserting trimming spacers behind the impeller hub.
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Periodically (once a month) it is advisable to dismantle the strainer and to clean the
impeller cavities. frequently foreign matter will be deposited which should be cleaned
for optimum performance.
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If pump is not used and lying in storage for more than 30 days please ensure that
the seal faces are not gauge locked – rotate the impeller/kick start the unit once a
month. Refer to instructions on disassembly/reassembly of mech. seals in the event
the faces have locked.