16
October 2021
Service Manual
VCIOM-16909-EN Rev. 0
13
Section 4: Manual Actuator Operation Under Maintenance
Manual Actuator Operation Under Maintenance
4.1.3
Activate Manual Operation
To activate manual mode:
•
The padlock has to be removed.
•
The coupling rod has to be pushed all the way into the actuator.
For easier clutch engagement, move the handwheel easily back and forth. Through the engagement,
the actuator is automatically electrically disabled and the display shows "manual operation".
4.1.4
Deactivate Manual Operation
To exit the manual mode and enable the actuator again for the automatic mode:
•
The actuator has to be driven to the fail-safe position by the handwheel.
•
The coupling rod be pulled up to the stop of the actuator.
•
The coupling rod again secured with the padlock.
4.1.5
Required Force on the Handwheel
Table 3 shows the maximum force applied to the handwheel for the different actuator sizes.
Table 3.
Type
Max. handwheel torque (Nm)
Handwheel diameter
(mm)
In fail-safe direction
Counter
fail-safe direction
FQ03
4
8.5
140
FQ06
4
14.5
140
FQ10
8
32
200
FQ20
8
28.5
200
FQ30
8
31
200
FQ50
8
32
200
The force on the handwheel was calculated for one-handed operation. With two-hand operation, the
value per hand is halved. The maximum force may be exceeded by 20% in manual mode.
The direction of rotation and the maximal handwheel torque are written on the handwheel label, as
shown on Figure 6.
Figure 6
Handwheel label
