UB USER INSTRUCTIONS ENGLISH 71569247
®
Our specialist service personnel can help with preventative maintenance records and provide condition monitoring for temperature and vibration to identify the onset of potential problems.
If any problems are found the following sequence of actions should take place:
a)Refer to section 7, Faults; causes and remedies, for fault diagnosis.
b)Ensure equipment complies with the recommendations in this manual.
c)Contact Flowserve if the problem persists.
6.2.1 Routine inspection (daily/weekly)
The following checks should be made and the appropriate action taken to remedy any deviations:
a)Check operating behaviour. Ensure noise, vibration and bearing temperatures are normal.
b)Check that there are no abnormal fluid or lubricant leaks (static and dynamic seals) and that any sealant systems (if fitted) are full and operating normally.
c)Check that shaft seal leaks are within acceptable limits.
d)Check the level and condition of oil lubricant. On grease lubricated pumps, check running hours since last recharge of grease or complete grease change.
e)Check any auxiliary supplies eg. heating/cooling, if fitted, are functioning correctly.
Refer to the manuals of any associated equipment for routine checks needed.
6.2.2 Periodic inspection (six monthly)a)
Check foundation bolts for security of attachment and corrosion.
b)Check pump running records for hourly usage to determine if bearing lubricant requires changing.
c)The coupling should be checked for correct alignment and worn driving elements.
Refer to the manuals of any associated equipment for periodic checks needed.
6.2.3Lubricant and bearing temperature analysis can be useful in optimizing lubricant change intervals. In general however, the following is recommended.
See section 5.2.1 for grease recommendations.
Regrease - via grease nipples every 2 000 hours or sooner depending on the severity of the application.
a)It is important not to under or over grease the bearings as this will lead to over heating and premature failure. Grease lubricated bearing housings have grease nipples fitted in the bearing brackets.
b)The maximum allowable operating temperatures for anti friction bearings will vary from unit to unit, depending on ambient and fluid temperature.
The rise above ambient should not normally exceed 55 °C (131 °F) or a combined maximum of 95 °C (204 °F).
c)A continuously rising temperature or an abrupt temperature rise indicates a problem. If these symptoms occur, stop the pump immediately and investigate the cause.
TEMPERATURE
TIME
Grease change - every 4 000 hours or sooner depending on the severity of the application.
a)Remove the bearing bracket from the rotor assembly.
b)Brush the bearing bracket with hot kerosene (100 to 115 °C/212 to 240 °F) or other
c)Clean and flush out the housing with a light mineral oil.
d) Do not use waste oil to clean the housing.
To clean the bearings:
a)Wipe off as much grease as possible with a clean
b)Brush bearings with hot kerosene (80 to 90 °C/ 175 to 195 °F) while gently spinning the outer bearing ring.
c)Spin each ball to ensure that it is clean.
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