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2. Isolating the pump WARNING
Before attempting to disassemble the pump, the pump must be isolated from the system,
by closing suction and discharge system valves, drained of liquid and cooled, if pump is
handling hot liquid.
3. Draining pump handling hot liquids WARNING
When pump is handling "hot" liquid extreme care must be taken to ensure safety of
personnel when attempting to drain pump. Hot pumps must be allowed to cool before
draining.
4. Draining pump handling caustic liquid WARNING
When pump is handling "caustic" liquid extreme care must be taken to ensure safety of
personnel when attempting to drain the pump. Protective devices of suitable protective
materials must be worn when draining the pump.
It should be understood that the information contained in this manual does not relieve
operating and maintenance personnel of the responsibility of exercising normal good
judgement in operation and care of the pump and its components.
5. Pumps on vacuum service WARNING
Before attempting any maintenance work on pumps in vacuum service, the pumps must be
isolated from suction and discharge system then carefully vented to return pressure in
pump casing to atmospheric pressure.
6. Oil ring inspection (where applicable) CAUTION
Remove the pipe plug(s) from the top of the bearing housing(s) and check to see that oil
rings are riding free on the pump shaft and are not hung up. Failure to observe this caution
could result in damage to or destruction of equipment.
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