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17 Maintenance
17.1 Levels of maintenance
D e s c r i p t i o n
Levels
Operations recommended in the instructions manual "installation − operation − maintenance", carried
out by suitably qualified personnel having received training allowing them to intervene whilst respec-
ting the safety rules.
1
Complex operations, requiring specific expertise and the implementation of support equipment in
accordance with AREVA’s procedures. These are carried out by AREVA or by a specialised techni-
cian, trained by AREVA (see § 1.2) in the implementation of procedures, and who is equipped with
specific equipment.
2
All preventive and corrective maintenance, all renovation and reconstruction work is carried out by
AREVA.
3
17.2 Preventive maintenance for the mechanical control mechanisms
Please refer to the specific instruc-
tion manuals (See § 2.5).
17.3 Preventive maintenance of the functional units
P R E V E N T I V E M A I N T E N A N C E Frequency Levels
Operations recommended at the Functional Unit level 3 years 6 years 1 2 3
Verification of the presence and condition of accessories (levers, etc.) X − X X X
Visual inspection of the exterior (cleanliness, absence of oxidation, etc.) X − X X X
Cleaning of external elements, with a clean, dry cloth X − X X X
Checking the tightness to torque (covers, wiring ducts, connections, etc.) X − X X X
Checking the mechanical controls by carrying out a few operations X − X X X
Checking the positioning of the status indicators (armed, open and closed) X − X X X
Control of the status and functioning of locking by key locks X − X X X
Dusting and cleaning the internal mechanical elements (without solvent) X − − X X
Inspection of the tightening of the threaded fasteners and presence of internal
stop elements
− X − − X
Dusting and cleaning the internal mechanical elements (with solvent) − X − − X
Lubrication and greasing of mechanical elements (with recommended products) − X − − X
Monitoring the general appearance of the mechanical components and connections − X − − X
Testing the "function" mechanical interlocks − X − − X
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