Xylem FLYGT Concertor, Installation, Operation And Maintenance Manual

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Hexagon screws with countersunk heads
For hexagon socket head screws with countersunk head, maximum torque for all property
classes must be 80% of the values for property class 8.8 above.
7.2 Maintenance intervals
Type of
maintenance
Purpose Inspection interval
Initial inspection A Xylem-authorized personnel checks the pump condition.
From the results, the personnel recommends the intervals for
the periodical inspection and overhaul for the installation.
Within the first year of
operation.
Periodical
inspection
The inspection prevents operational interruptions and machine
breakdowns. The measures to increase performance and pump
efficiency are decided for each application.
Up to 12,000 hours or three
years, whichever comes first.
Overhaul The overhaul lengthens the operating lifetime of the product. It
includes the replacement of key components and the measures
that are taken during an inspection.
Up to 24,000 hours or six
years, whichever comes first.
NOTICE:
Shorter intervals may be required when the operating conditions are extreme, for
example with very abrasive or corrosive applications or when the liquid temperatures
exceed 40°C (104°F).
7.2.1 Inspection
The list is valid for initial inspection and periodical inspection.
Service item Action
Cable 1. If the outer jacket is damaged, replace the cable.
2. Check that the cables do not have any sharp bends and are not pinched.
Electrical connections Check that the connections are properly secured.
Electrical cabinets Check that they are clean and dry.
Impeller 1. Check the clearance.
2. If necessary, adjust.
Stator housing Drain any liquid.
For more information, see
Drain the liquid from the stator housing on
page 38.
Level regulators Check the condition and functionality.
Lifting device Check that the local safety regulations are followed.
Lifting handle 1. Check the screws.
2. Check the condition of the lifting handle and the chain.
3. If necessary, replace.
Oil If necessary, fill with new oil.
For more information, see
Change the oil on page 39.
O-rings 1. Replace the O-rings of the oil plugs.
2. Replace the O-ring of the inspection plug.
3. Lubricate the new O-rings.
Overload protection and
other protections
Check the correct settings.
Personnel safety devices Check the guard rails, covers, and other protections.
Thermal contacts, for Ex-
approved versions
Normally closed circuit; interval 0–1 ohm.
Voltage and amperage Check the running values.
7 Maintenance
6020.180/090 Installation, Operation, and Maintenance Manual 37