57
Operating and display elements
11.6
Switching the device manually with pilot valve
The device can be switched manually with the pilot valve when the control air is connected.
Body casing
Basic housing
Actuator
Transparent cap
Seal
(body casing)
Closing device:
Figure 50:
Opening or closing the device
NOTE
Breakage of the pneumatic connection pieces due to rotational impact.
▶
When opening or closing the device, do not press against the actuator, but against the basic housing.
→
Screw off the body casing by turning anticlockwise.
Manual override
Pilot valve
Basic housing
Figure 51:
Manually switching the device
NOTE
Damage to the manual override by pressing and rotating at the same time.
▶
Do not simultaneously press and turn manual override.
Switching the positions for manual override:
Lock function:
90° rotation = maintained-contact switching
Normal position
Push function:
Pressing = brief actuation
Figure 52:
Manual override
→
Switch manual override with a screwdriver (button or click).
→
Check that seal is in the correct position.
NOTE
Damage or malfunction due to ingress of dirt or moisture.
To observe the degree of protection IP65 or IP67:
▶
Screw in body casing to the stop.
→
Close the device (see accessories for assembly tool).
english
Type 8691 REV.3
Summary of Contents for 8691 REV.3
Page 1: ...Operating Instructions Type 8691 REV 3 Control Head ...
Page 63: ......
Page 64: ...www burkert com ...
