Edwards EDS 300

9. Maintenance
WARNING: UNEXPECTED RESTART
Failure or malfuncon of the central control system (unexpected start-up) or danger of a
pump restarng automacally aer switching o due to a fault. Crushing, cung or
cung o by touching moving parts due to recurring start command or power supply.
Before carrying out maintenance or service work, disconnect the pump from the power
supply, secure it against being switched on again, determine that it is de-energised,
ground and short-circuit it and cover/isolate adjacent live parts.
CAUTION: HOT EQUIPMENT
Scalding by touching hot equipment or lubricants. Danger of scalding when opening the
hot pump with hot operang uid or cooling-water. Open outlet or inlet port for
operang uids only if the operang uid has adapted to the room temperature. Wear
suitable protecve equipment.
CAUTION: HIGH PRESSURE GAS
Danger due to incorrect connecon of the pump to the system to be pumped out.
Pressure build-up in the vacuum system. Check correct connecon of inlet and outlet
anges before operaon. When using the pump with seal gas, protect the seal gas supply
so that no overpressure can occur in the pump system in the event of a malfuncon or
power interrupon.
9.1 Return the equipment or components for service
Before you send your equipment to us for service or for any other reason, you must send us
a completed Declaraon of Contaminaon of Vacuum Equipment and Components – Form
HS2. The HS2 form tells us if any substances found in the equipment are hazardous, which is
important for the safety of our employees and all other people involved in the service of
your equipment. The hazard informaon also lets us select the correct procedures to service
your equipment.
We provide instrucons for compleng the form in the Declaraon of Contaminaon of
Vacuum equipment and Components – Procedure HS1.
If you are returning a vacuum pump, note the following:
▪
If a pump is congured to suit the applicaon, make a record of the conguraon
before returning the pump. All replacement pumps will be supplied with default
factory sengs.
▪
Do not return a pump with accessories ed. Remove all accessories and retain them
for future use.
▪
The instrucon in the returns procedure to drain all uids does not apply to the
lubricant in pump oil reservoirs.
Download the latest documents from www.edwardsvacuum.com/HSForms/, follow the
procedure in HS1, ll in the electronic HS2 form, print it, sign it, and return the signed copy
to us.
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