5. Maintenance and conversion
5−4
Festo P.BE−VTSA−44−EN en 0509NH
5.1 General precautionary measures
Warning
Sudden unexpected movements of the connected actua
tors and uncontrolled movements of loose tubing can
cause injury to human beings or damage to property.
Before carrying out installation and maintenance work,
switch off the following:
· the compressed air supply
· the operating and load voltage supplies.
Please note
Handle all modules and components of the valve terminal
with great care.
Note especially the following when fitting components:
· Screws must be fitted accurately (otherwise threads will
be damaged).
· Screws must be fastened at first only by hand. Place the
screws so that the self−cutting threads are used.
· The specified torques must be observed.
· Screw connections must be fitted free of offset and
mechanical tension.
· Check the seals for damage (IP65).
· The contact surfaces must be dry and clean (sealing
effect, avoid leakage and contact faults).
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