6996 0223 96 Issue A
© Edwards Limited 2016. All rights reserved. Page 5
Edwards and the Edwards logo are trademarks of Edwards Limited.
1 SAFETY PRECAUTIONS
1.1 Safety icons
This manual provides installation, operation and maintenance instructions for the Edwards dry claw pump.
Edwards takes no responsibility for damage or injury caused by improper use of the equipment.
Read this manual before you attempt to install, operate or maintain the dry claw pump.
Important safety information is highlighted as WARNING and CAUTION instructions; you must obey these
instructions. The use of WARNINGS and CAUTIONS is defined below.
WARNING
Warnings are given where failure to observe the instruction could result in injury or
death to people.
CAUTION
Cautions are given where failure to observe the instruction could result in damage to the equipment,
associated equipment or process.
1.2 Safety precautions, general
1. The operator must employ safe working practices and observe all related work safety requirements
and regulations.
2. If any of the following statements does not comply with the applicable legislation, the stricter of the
two shall apply.
3. Installation, operation, maintenance and repair work must only be performed by authorized, trained,
specialized personnel.
4. This claw pump is primarily designed for the handing of clean and dry air but inevitably it may be
subjected to dirty and wet applications. If operating in aggressive, toxic, explosive and possibly
dangerous conditions for the pump and operators, consult Edwards.
5. Before any maintenance, repair work, adjustment or any other non-routine checks,
Stop the pump.
Press the emergency stop button.
Switch off the voltage.
Make sure that the pump system is at atmospheric pressure level.
Lock Out - Tag Out (LOTO):
Open the power isolating switch and lock it with a personal lock.
Tag the power isolating switch with the name of the service technician.
The units may be powered by a frequency converter. Wait 10 minutes after power down before
starting any electrical repair.
Never rely on indicator lamps or electrical door locks before maintenance work, always
disconnect and check with measuring device.
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