Flowserve APEX A9000 Accord - Manual (Page 35)

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14. Maintenance/service
When carrying out service, replacing a circuit board, etc., it may be necessary to remove and refit various parts of
the positioner. This is described on the following pages.
Read the Safety Instructions on page 3 before starting work on the positioner. Cleanliness is essential when working
with the positioner. Contamination in the
air ducts will infallible lead to operational disturbances. Do not disassemble the
unit more than that described here.
Do not take the valve block apart because its function will be impaired.
When working with the Apex A9000 positioner, the work place must be equipped with ESD protection before the work
is started.
Always turn off the air and electrical supplies before starting any work.
When upgrading electronically parts inside a A CCORD positioner approved for installation in Hazardous
locations special procedures apply, permission from A CCORD /Flowserve is required prior to the start of work.
Please contact a Flowserve office for information regarding proper procedures.
Disassembling Apex A9000
Removing cover and inner cover
• Loosen and remove the screws A and remove the cover. When mounting
cover
– see page 10.
• Pull off the arrow pointer, B, using a small screw driver.
• Remove the screws C, pull the inner cover slightly in the direction of the arrow, and remove the cover. Do not
remove the filter plug.
A
C
C
A