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7. Maintenance
7.1 Maintenance safety
WARNING: MAINTENANCE SAFETY
Risk of injury or damage to equipment. Follow the safety instructions and take note
of all appropriate precautions.
▪
When referring to a manual supplied as a Supplementary Publication, all of the
WARNING and CAUTION instructions in the manual must be obeyed.
▪
A suitably trained and supervised technician must maintain the pumping system.
▪
Allow the system to cool (so that it is at a safe temperature for skin contact) before
starting maintenance work. Make sure the system is switched off in case the
thermal overload device restarts the system.
▪
Check that all the required parts are available and of the correct type before
starting work.
▪
Ensure that the maintenance technician is familiar with the safety procedures
which relate to the pump oil and the products processed by the pumping system.
▪
Isolate the system and other components from the electrical supply so that they
cannot be operated accidentally.
▪
Do not reuse O-rings and seals if they are damaged.
▪
Dispose of components, grease and oil safely (refer to
▪
Protect sealing faces from damage.
▪
Leak testing the system is recommended after maintenance. Seal any leaks found if
any vacuum or exhaust pipeline connections have been disconnected.
7.2 Maintenance plan
WARNING: FAILURE OF SCREWS
Risk of injury or damage to equipment. If the turbo pump is removed from the
pumping system, it is important to retain and reuse the same fixing screws. If any of
these screws are lost or cannot be used, the following type M8 x 16-18 mm CAP HD
high tensile class 12.9 must be used. If this warning is ignored and the turbo pump
seizes, the stored energy in the turbo pump may cause some or all of the screws to
fail. This may result in the turbo pump being ejected from the pumping system.
Refer to Associated publications on page 2 for minimum maintenance operations
necessary to maintain the pumping system in normal use.
More frequent maintenance may be necessary if the pumping system has been used to
pump corrosive or abrasive gases and vapour. If necessary, adjust the maintenance plan
according to your experience.
D39595880_A
D39595880_A - Maintenance
Page 34
Disposal
on page 39).
10/2020 - ©Edwards Limited
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