ACTUS 720-0138 Basisinstellingen - Pagina 2

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4. Before connecting the linkage, run unit back and forth to make sure

that the stroke of the actuator matches that of the lever to be moved.

If the stroke of the actuator needs to be adjusted, proceed as follows:

a. Run unit back and forth and note how the adjustment pins

contact the limit switches to set the stroke length.

NOTE

Before attempting any adjustment of the limit switches,

turn the power off to prevent any accidental short circuits

or injury.

b. Determine which limit switches must be adjusted. Loosen the

set screws, with the Allen wrench supplied, and slide the pins in

or out to adjust the stroke as needed. Do not over tighten set

screws.

CAUTION

Do not attempt to adjust the stroke by bending the

contacts on the limit switches. This is the most frequent

mistake which causes failure of the limit switches and

inevitable failure of the entire unit.

5. With the proper stroke set, connect linkage to lever and run unit back

and forth to make sure that the actuator runs freely without any

binding.

NOTE

Be sure that the actuator contacts the limit switch before

reaching the end of its mechanical stroke. Failure to do so

could result in damage to the actuator.

6. Replace actuator cover.

7. Ready to begin operation.

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