When air or compressed inert gas is used in the maintenance process, the operator and anyone in the vicinity must be careful and have the appropriate protection.
Do not spray air or compressed inert gas on skin.
Do not direct an air or gas jet towards other people.
Never use air or compressed inert gas to clean clothes.
Before working on the pump, take measures to prevent an uncontrolled start. Put a warning board on the starting device with the words:
"Machine under repair: do not start".
With electric drive equipment, lock the main switch open and withdraw any fuses. Put a warning board on the fuse box or main switch with the words:
"Machine under repair: do not connect".
Never clean equipment with inflammable solvents or carbon tetrachloride.
Protect yourself against toxic fumes when using cleaning agents.
k)Check dirt and dust is removed from areas around close clearances, bearing housings and motors.
l)Check coupling alignment and
m)Verify the correct operation of the system.
The equipment used for maintenance and disassembly in an ATEX zone must be in conformity with the requirements zone.
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 Standard maintenance
Roller bearing
The bearing housings are provided with sealed for life ball bearings. No maintenance is required.
6.2 Maintenance schedule
It is recommended that a maintenance plan and schedule is adopted, in line with these User Instructions. It should include the following:
a)The pump must be completely vented and drained and rendered inert before any disassembly operation.
b)Any auxiliary systems installed must be monitored, if necessary, to ensure they function correctly.
c)During cleaning of the pump ensure the compatibility between the cleaning products and the gaskets.
d)Verify the condition of the gaskets.
e)Gland packings must be adjusted correctly to give visible leakage and concentric alignment of the gland follower to prevent excessive temperature of the packing or follower. Mechanical seals should present no leakage.
f)Check for any leaks from gaskets and seals. The correct functioning of the shaft seal must be checked regularly.
g)Check bearing lubricant level, and if the hours run show a lubricant change is required.
h)Check that the duty condition is in the safe operating range for the pump.
i)Check vibration, noise level and surface temperature at the bearings to confirm satisfactory operation.
j)Check the tightness of the connections.
6.2.2 Routine inspection (daily/weekly)
The following checks should be made and the appropriate action taken to remedy any deviations:
a)Check operating behavior. 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)Pump fitted with a stuffing box: leakage of 20 drops per minute.
d)Pump fitted with a mechanical seal: no leakage.
e)Check the level and condition of oil lubricant. On grease lubricated pumps, check running hours since last recharge of grease or complete grease change.
6.2.3 Periodic inspection (six monthly)
a)
Check foundation bolts for security of attachment and corrosion.
b)Check
c)The coupling should be checked for correct alignment and worn driving elements.
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