Tork TREAE Series, User Manual

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Fig 8. Manual Control Lever
b. Manual Control
Manual
Control
Lever
There are two different manual control ways. First way is with manual control lever, and
the second way is by buttons on PCB card.
1) Controlling with manual control lever is only recommended to use in case of emergen-
cy as power failure or interreptuion of the control signal. The reason for this is, even the
valve’s position changed with manual control lever while there is control signal on electric
actuator. In this control system, manual control lever which is located near to the body
is pull down. By this way, motor’s connection with gears is cut. Switch under the body is
opened and closed by no 15 switch. For switch to automatic control mode, manual control
lever is pull up, then motor will activated and actuator will be controlled automatically.
When the manual arm is pulled down, there is a high possibility of strain. To prevent
this strain and prevent the manual arm from breaking, the keyway under the handle must
be loosened by moving the handle 15 to the left and right while the manual arm is being
pulled down. In this way, it is easily transitioned into manual mode and the motor is dis-
connected from the gears. Otherwise, the manual arm may break. Manual arm breakage
caused by force is not covered by guarantee.