6
6. Manual Operation
The actuators are supplied with a loosely enclosed handwheel in order to operate the actuator in case of power loss
or during installation work such as mounting onto a valve or setting the limit positions. Mount the handwheel
according to Figure 3.
Figure 3: Handwheel assembly
The handwheel is permanently engaged and turns during motor operation of the device series PSL201-210 and
PSL214.
The actuators PSL320 - 330 have a handwheel which has to be engaged for manual operation. The button on the
cover has to be depressed to engage the handwheel.
*PSL214: Please take off the handwheel cover before starting manual operation
Figure 4: Manual operation
Do not exceed the adjusted electrical
stroke limits by handwheel.
The mechanical limits must be set
accordingly.
If these instructions are not
observed, it may result in
malfunction or damage to the
actuator.
Operate the handwheel only
manually. Do not replace it and do
not operate it by using excessive
force or a motor. If these instructions
are not observed, it may result in
malfunction or damage to the
actuator.
PSL201-204
PSL208-210
PSL214*
PSL320-330
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