ITT Flygt 3102, Инструкции по обслуживанию и ремонту

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Requirements for Ex-approved products
Basic requirements
• Only personnel authorized by the manufacturer are allowed to repair, maintain and service Ex-
approved products.
• Always follow the information about repair, maintenance and service in the Ex manual while working
on an Ex-approved product. For the Ex manual, see the W&WW Intranet or contact your local Ex-
coordinator.
• To ensure that the product complies with the regulations and approval of the authorities, use only
original spare parts.
• Always check the dimensions of vital parts before assembly, this applies to spare parts as well.
Failure to meet the above requirements may render the Ex-approval invalid.
Background
In an Ex-approved product the gaps between different parts, for example between the stator housing and
the junction box, must be tight enough and long enough to prevent any sparks from the interior of the
product from escaping out and igniting surrounding gases. To be able to measure these flameproof gaps
accurately all surfaces included in a gap must be clean and free from damages.
The approval drawings show the gaps, in these drawings also called joints, that must be measured and the
surfaces that must be inspected for damages. For approval drawings of the product, see the W&WW
Intranet or contact your local Ex-coordinator.
Documents required
• Approval drawing of the pump at issue
• Ex manual
• Report of findings, measurements, tests, and similar, see examples in the Ex manual
Temporary storage guidelines
If a disassembled product has to await ordered spare parts, all parts have to be carefully lubricated and
covered. Store all parts separately to ensure that no damages will occur.
Service the pump
Regular inspection and service of the pump ensures more reliable operation, severe operating conditions
will require more frequent inspections.
If the seals have been replaced an inspection of the oil is recommended after one week of operation.
Type of service Inspection interval
Intermediate service
• Every year (standard applications)
• For hot water applications (≤ 70°C [160°F]) with the following mode of
operation:
• Intermittent: twice a year
• Continuous: every 1000 hours
Major service in an
authorized service shop
• Type of installation:
• Permanent: 3 years
• Portable: once a year
• For hot water applications (≤ 70°C [160°F]) with these mode of operation:
• Intermittent: once a year
• Continuous: every 4000 hours
Intermediate service
Maintenance (Continued)
Flygt 3102 Service and Repair Instructions 57