Edwards nES Series, Инструкция по эксплуатации, Страница: 39 / 56

6. Maintenance
6.1 Preventive maintenance schedule
WARNING: SAFETY PRECAUTIONS
Risk of injury or damage to equipment. The operator must apply all relevant safety
precautions. Refer to Safety precautions during maintenance or repair on page 10.
Before the maintenance, repair or adjustments, do the steps as follow:
▪ Stop the vacuum pump.
▪ Set the voltage supply to off.
▪ Isolate the machine from all sources of under and overpressure.
▪ Make sure that the pump system is at atmospheric pressure.
Refer to Fault finding on page 43 for more information.
Warranty - Product Liability
Use only authorised parts. Any damage or malfunction caused by the use of
unauthorised parts is not covered by Warranty or Product Liability.
Service kits
For overhauling or carrying out preventive maintenance, service kits are available.
Contact our customer centre.
Service contracts
We offer several types of service contracts, relieving you of all preventive maintenance
work. Contact our customer centre.
General
Replace the o-rings and washers that are removed during servicing.
Intervals
Our local customer centre may overrule the maintenance schedule, especially the
service intervals, depending on the environmental and working conditions of the
vacuum pump.
The longer interval checks must also include the shorter interval checks.
Table 4 Preventive maintenance schedule
Operation
Duty
*
Normal Medium Harsh
Check oil level and condition 24 hours 24 hours 24 hours
Clean dirt-trap at pump inlet Monthly Monthly Monthly
Clean anti suck back valve at pump
inlet
Yearly Yearly Yearly
07/2020 - Page 35
A35104880_B - Maintenance