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•
Check that the foundation and the hold-down bolts are tight.
•
Check the packing if the pump has been left idle, and replace as required.
•
Change the oil every three months (2000 operating hours) at minimum.
•
Check the shaft alignment, and realign as required.
Annual inspections
Perform these inspections one time each year:
•
Check the pump capacity.
•
Check the pump pressure.
•
Check the pump power.
If the pump performance does not satisfy your process requirements, and the process requirements
have not changed, then perform these steps:
1.
Disassemble the pump.
2.
Inspect it.
3.
Replace worn parts.
6.1.1 Bearing maintenance
These bearing lubrication sections list different temperatures of the pumped fluid. If the pump
is ATEX-certified and the temperature of the pumped fluid exceeds the permitted temperature values,
then consult your ITT representative.
For ATEX applications bearing replacement (all) is recommended after 17,500 hours of oper-
ation.
Bearing lubrication schedule
Type of bearing
First lubrication
Lubrication intervals
Oil-lubricated bearings Add oil before you install and start the pump.
Change the oil after 200 hours for new bear-
ings.
After the first 200 hours, change the oil ev-
ery 1000 operating hours or every two
months.
Grease-lubricated
bearings
Grease-lubricated bearings are initially lubricat-
ed at the factory.
Regrease bearings every 500 operating
hours or every month.
6.1.2 Lubricating oil requirements
Use a high quality turbine oil with rust and oxidation inhibitors.
You can use an oil of ISO viscosity grade VG 220 (SAE grade 50W) for all bearing operation temperature
ranges.
6.1 Maintenance schedule
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XHD Installation, Operation, and Maintenance Manual
Summary of Contents for XHD
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