Beck, R&J Automobile Parts 14-10 Benutzerhandbuch

17

INSTALLATION 

 

After the drive is mounted and its wiring 

connections are made, it is ready to be tested for 
proper operation.
 

Turn on the power supply.  Operate the 

drive with the Handswitch and run it through its 
full stroke, both directions.  Observe that the 
driven device travels through its desired stroke.  
If satisfactory, set Handswitch at the “auto” 
position.
 

If the drive is to be operated with automatic 

control, turn on the controller and operate the 
drive by varying the control signal.  Check that 
the valve strokes in the proper direction for a 
change in control signal.  An increasing control 
signal retracts the shaft and opens the valve.  
With a 100% signal, the drive is fully retracted.  If 
the valve does not stroke in the proper direction, 
first check for proper wiring connections and 
verify the control signal at the drive.  If the wiring 
is correct, then reverse the direction of travel (see 
page 25).
 

If the drive is to be push-button actuated, 

(options 3, 4, 5 or 6) operate the drive using the 
Handswitch and observe that direction of travel 
is correct.  When travel of the driven device is 
satisfactory with reference to the control signal or 
the push-buttons, the unit is ready for operation.

 

The drive has a Tight-Seater™ attached to 

its output shaft.  The Tight-Seater™ allows tight 
seating of the valve plug.  It is a pre-loaded 
coupling that allows the valve plug to seat before 
the drive reaches its lower limit.  The additional 
amount of travel compresses the thrust discs 
inside the Tight-Seater™, causing a controlled 
amount of thrust to hold the valve plug on its 
seat when the drive stem reaches its lower limit.  
The Tight-Seater™ is factory-set to produce a 
thrust matched to the valve and should never be 
disassembled.  Control of the amount of valve 
stem threaded into the Tight-Seater™ may be 
used to adjust the valve seating.
 

If readjustment of valve seating is necessary, 

proceed as follows:
 1. With the Handswitch, run the drive to a 

position above the 0% or lower limit position.

 2. Loosen the lock nut on the valve stem and 

thread the valve stem into the Tight-Seater™.

 3. Run the drive to the 0% position, using the 

Handswitch.

  4.  Thread the valve stem out of the Tight-Seater™ 

until the plug seats in the valve.

 5. Raise the drive shaft using the Handswitch 

until the plug is clear of the seat and there 
is sufficient clearance to make the following 
adjustment.

  6.  Thread the valve stem out of the Tight-Seater™ 

a fraction of a turn according to the valve stem 
thread as listed (1/32" travel):

 7. Tighten the lock nut and index disc on the 

valve stem.

 8. Run the drive to its lower limit using the 

Handswitch.  The valve stem should stop 
before the drive shaft stops.

 9.  Reposition the travel index.