VOFA−...
Festo VOFA−... 1004NH English
69
Proceed as follows to replace individual, same−type solenoid valves of the control
block:
1. Switch off the following sources of energy:
operating voltage
compressed air supply.
2.
L
oosen the screw on the plug socket of the solenoid coil with a slotted−head
screwdriver and pull off the socket.
3.
L
oosen the two mounting screws of the solenoid valve with an Allen key SW3
and remove the solenoid valve from the control block.
4. Take the new, same−type solenoid valve and check whether the inserted seal is
in the
ISO
"
position for unducted exhaust air (see Fig.13).
The position for ducted exhaust air (
ISO
"
marking visible) is not permissible.
3
1
2
1
Inspection window at control side 12
2
The seal is visible in the inspection window
on control side 14
3
Designation label
In the depicted, correct position, the
ISO
"
marking on the designation label is visible.
Fig.13: Position of the valve seal (here: correct position for unducted pilot exhaust air)
Summary of Contents for VOFA-B26-T52-M Series
Page 26: ...VOFA Festo VOFA 1004NH Deutsch 26 Bild 11 Funktionstest Schritte 1 bis 4...
Page 27: ...VOFA Festo VOFA 1004NH Deutsch 27 Bild 12 Funktionstest Schritte 5 bis 7...
Page 64: ...VOFA Festo VOFA 1004NH English 64 Fig 11 Function test steps 1 to 4...
Page 65: ...VOFA Festo VOFA 1004NH English 65 Fig 12 Function test steps 5 to 7...
