Series 651 MAINTENANCE
605451EC Edition 2014-07-10 87/
6. Remove or replace interface
board.
7. Remove or replace master board.
8. Remove or replace option board.
9. Insert master board and interface board
in reverse order as disassembled at
correct positions (see steps 7 to 6).
10. Reconnect fan cable to option board
(see steps 5 to 4).
11. Place the panel and tighten panel
screws with 1.1 Nm (see steps 3 to 2).
Pozidriv screw driver
size 1
12. Tighten female screw locks from
POWER, SENSOR and INTERFACE
connectors with 1.1 Nm (see step 1).
Open end wrench
4.5 mm
If you need any further information, please contact one of our service centers. You
can find the addresses on our website: www.vatvalve.com.
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