Maintenance and service
General main
tenance
The system requires no user maintenance. Maintenance must be carried out by Edwards
service centres (refer to Service on page 27). The frequency of maintenance operaons
depends on the process. Adjust the frequency of maintenance operaons according to user
experience.
Edwards recommend carrying out a monthly visual inspecon of the dry pumping system
where it is installed. Check that the electrical supply cord, hoses and pipelines bringing
services to the pump are in good condion and ensure that all connecons are secure.
Service
It is recommended that the pump be serviced every 5 years. The pump should then be
returned to an Edwards service centre.
Edwards products are supported by a world-wide network of Edwards Service Centres. Each
Service Centre oers a wide range of opons including: equipment decontaminaon; service
exchange; repair; rebuild and tesng to factory specicaons. Equipment which has been
serviced, repaired or rebuilt is returned with a full warranty.
Local Service Centres can also provide Edwards engineers to support on-site maintenance,
service or repair of equipment. For more informaon about service opons, contact the
nearest Service Centre or other Edwards company.
Returning a pump for service
When returning a pump to a Service Centre, use the returns procedures in the HS1 form.
Follow the procedure in Figure 10 on page 38 and ensure that a completed Figure 11 on
page 39 form is returned with the pump.
The instrucon in the returns procedure to drain all uids does not apply to the lubricant in
the pump oil reser
voirs. Do not return the pump with the accessories ed. Remove all
accessories and retain them for future use.
If the pump is congured to suit the applicaon, make a record of the conguraon before
returning the pump. All replacement pumps will be supplied with default factory sengs.
Edwards products, spares and accessories are available from Edwards companies in Belgium,
Brazil, China, France, Germany, Israel, Italy, Japan, Korea, Singapore, United Kingdom, U.S.A.
and a world-wide network of distributors. The majority of these centres employ Service
Engineers who have undergone comprehensive Edwards training courses.
Order spare parts and accessories from the nearest Edwards company or distributor. When
ordering, state for each part required:
• Model and Item Number of the equipment
• Serial number
• Item Number and descripon of part.
A770-10-880A - Maintenance and service
Page 27