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1.5 Safety precautions during maintenance or repair
1.
Use the correct safety equipment (for example, safety glasses, gloves, safety
shoes).
2.
Use the correct tools for maintenance and repair.
3.
Use only genuine spare parts.
4.
Do not start maintenance until the pump is cool.
5.
Attach a warning sign "Work in progress, do not start" next to the pump before you
start the maintenance or repair.
6.
Persons that use a remote-controlled machine must obey the necessary
precautions. Before you operate the machine you must make sure that no one is
working on the machine. Attach a sign next to the remote start equipment as
follows:
"Danger: The machine is remotely controlled and can start without warning."
7.
Before components are removed from the pump, make sure that:
▪
▪
8.
Do not use flammable solvents or carbon tetrachloride to clean the parts. Obey the
safety precautions for toxic vapours of cleaning liquids.
9.
During maintenance and repair:
A.
B.
10.
Do not weld or do any operation involving heat near the oil system. Oil tanks must
be completely purged (for example, by steam cleaning) before you do such
operations. Do not weld or modify the pressure vessels.
11.
If there is an indication or suspicion that an internal part of a pump is overheated:
A.
B.
12.
Do not use a light source with an open flame to examine the inside of the pump.
13.
Make sure that no tools, parts or other items are left in or on the pump.
14.
Be careful when you handle the regulating and safety devices. Make sure that they
operate correctly. For safety, do not disconnect the regulating and safety devices.
15.
Before you use the machine after maintenance or overhaul make sure that:
▪
▪
▪
16.
Every time the separator element is renewed, examine the discharge and the
inside of the oil separator vessel for carbon deposits. If there is excessive carbon
deposits, remove the carbon deposits.
17.
Install protection to the motor, electrical and regulating components to prevent
damage from moisture when the pump is cleaned (for example, steam cleaning).
18.
Make sure that the sound‑damping material and vibration dampers of the pump
(for example, the sound‑damping material on the body and in the air inlet and
6996022910_B
6996022910_B - Safety and compliance
the pump is isolated from all sources of under and overpressure
the pump is at atmospheric pressure.
clean the pump carefully with a clean cloth
install protective covers on the parts and openings of the pump.
stop the pump
do not open the inspection covers until enough cooling time is completed to
prevent the risk of spontaneous ignition of the oil vapour.
the operating pressures, temperatures and time settings are correct
the control and shutdown devices are installed, and they operate correctly
the coupling guard of the pump drive‑shaft is installed.
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09/2021 - ©Edwards Limited
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