Goulds Pumps GSP Series, Инструкции по установке, эксплуатации и обслуживанию

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Routine Inspections
• Check for unusual noise, vibration and bearing temperatures
• Inspect pump and piping for leaks
• Check seal leakage
• Mechanical seal: should be no leakage
3 Month Inspections
• Check the foundation and hold-down bolts for tightness.
• If the pump has been left idle, check the seal and replace if needed.
Annual Inspections
• Check the pump capacity, pressure and power. If pump performance does not
satisfy your process requirements and the process requirements have not changed,
the pump should be disassembled, inspected and worn parts should be replaced.
Otherwise, a system inspection should be done.
Inspection intervals: Inspection intervals should be shortened appropriately if the
pumpage is abrasive or corrosive, or if the environment is classified as potentially
explosive.
Bearing Maintenance
Close coupled units: Bearings are located in and are part of the motor.
Smaller motors used on S1 sizes are equipped with bearings greased for life and need
no maintenance. From frame size 180 onwards motors are equipped with grease nipples
for greasing the bearings. For some motor brand names, the fre quency of greasing is
indicated on the name plate of the motor and must be followed. For motors where this
is not mentioned, it is best to grease every 2000 operating hours when the ambient
temperature is 25 °C. If the ambient temperature is 40 °C, the interval must be halved.
Note: When re-greasing there is danger of impurities entering the bearing housing. The
grease container, the greasing device and fittings must be clean.
Note: The bearing temperature usually rises after re-greasing due to an excess supply
of grease. Temperatures will return to normal after the pump has run and purged the
excess from the bearings, usually two to four hours.
For most operating conditions a lithium based mineral oil grease of NLGI consistency
No. 2 is recommended. This grease is acceptable for bearing temperatures of 5-230
degrees Fahrenheit. Bearing temperatures are generally about 20 degrees higher than
the bearing housing surface temperature.
Caution: Never mix greases of different consistency (NGLI 1 or 3 with NGLI 2) or
different thickener. For example, never mix a lithium base grease with a polyurea base
grease.
Mechanical Seal
Check the mechanical seal for leakage every week. When starting up a new pump, a few
drops of liquid leakage per hour is possible be cause the seal surfaces need to be run in.
This leakage should fully disappear after ten operating hours. In case of any damage to
the mechanical seal, it should always be replaced, both the stationary part, rotating part
and rubber parts. When opening the pump casing, the pump casing seal should also be
replaced at the same time.