• A suitably trained and supervised technician must maintain the pump. Obey your local and national
safety requirements.
• Ensure that the maintenance technician is familiar with the safety procedures which relate to the
sealing liquid and the products processed by the pumping-system.
• Allow the pump to cool to a safe temperature before you start maintenance work.
• Isolate the pump and other components in the pumping system from the drive system so that they
cannot be operated accidentally.
• Recheck the pump rotation direction (see Section 3.11) if the electrical supply or the drive and
transmission system has been disconnected/reconnected.
• Do not reuse seals or compression packing if damaged.
• The pump and sealing liquid will be contaminated with the materials that have been pumped during
operation. Ensure that the pump is decontaminated before maintenance and that you take adequate
precautions to protect people from the effects of dangerous substances if contamination has occurred.
• Do not touch or inhale the thermal breakdown products of fluorinated materials which may be present if
the pump has been heated to 260°C and above. These breakdown products are very dangerous.
Fluorinated materials in the pump may include greases and seals. The pump may have overheated if it
was misused, if it malfunctioned or if it was in a fire. Atlas Copco Safety Data Sheets for fluorinated
materials used in the pump are available on request: contact your supplier or Atlas Copco.
• If the pump has been used with a water-based sealing liquid, ensure that you take suitable precautions
against any harmful bacteria which may be inside the pump or sealing liquid supply system.
• Leak-test the system after maintenance work is complete if you have connected or disconnected any
process inlet or outlet joints; seal any leaks found.
5.2 Maintenance plan
The plan in Table 14 details the maintenance operations required to maintain the pump in normal
operation. Instructions for each operation are given in the section shown.
On Standard/Safe Area pumps, you can adjust the maintenance frequencies according to your experience.
When you maintain the pump, use Atlas Copco spares: refer to the pump Bill of Materials in the System
manual.