Dresser RCS Sure 24 Kurulum Kılavuzu

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RCS Sure 24/25

Installation Manual

Safety First

In the maintenance and operation of mechanical equipment, SAFETY

is the basic factor which must be considered at all times. Through

the use of the proper clothes, tools and methods of handling,

serious accidents causing injury to you or your fellow workers can be

prevented.

Throughout this manual are listed a number of safety precautions.

Study them carefully and follow them; also insist that those working

for you do the same. Remember, an accident is usually caused by

someone's carelessness, neglect or oversight.

CAUTION

To prevent the ignition of hazardous atmospheres,

do not remove actuator cover while circuits are live.

CAUTION

Loaded spring inside actuator. Do not attempt to

repair actuator below top gear plate, unless properly

trained on repair methods.

Installation

Note: SurePowr actuators can be supplied for clockwise or counter-clock-

wise spring driven rotation (viewed from the top of the actuator). The

spring drive rotation is noted on the actuator name tag and wiring

diagram. Ensure that the actuator has been supplied with the proper

spring drive operation for the application prior to installation on the

driven device.

The actuator is shipped in the power off (fail) position.

Ensure that the driven device is orientated to its fail position

prior to installation of the actuator.

Care should be taken to maintain proper alignment between

the actuator and the device shaft. If the actuator is not in the

correct alignment with the device shaft, repeat the

procedure in Step 1.

Mount the actuator to the device. Ensure the actuator is

centered properly with the device shaft, and then tighten all

bolts and nuts evenly.

Remove the cover bolts located around the actuator motor

and control cover flange.

Terminate field wiring per the appropriate RCS wiring

diagram, supplied with the actuator. Use aminimum of #18

AWG stranded wire.

Note: Ensure the driven device is properly positioned in its full fail

position. If it is not, use the adjustable end of travel stop on the Sure

24/25 (see figure 4) to properly adjust the fail end of travel stop. Only

the fail end of travel may be adjusted. Loosen the lock nut to free the

adjusting screw, then use an allen wrench to turn the screw. The total

adjustment available is +/- 5 degrees.

Figure 1

Switch adjustments for clockwise spring fail operation

(viewed from the top of the actuator)

Ensure actuator is de-energized and positioned in the

clockwise (fail) position. Ensure the end of travel stop

is properly adjusted. Rotate the screw clockwise to

move the actuator output shaft in a counter-clockwise

direction. Rotate the screw in a counter-clockwise

direction to move the actuator output shaft in a clock

wise direction. Loosen the setscrews on Cam2.

Rotate counter-clockwise until it clears the switch arm

roller of Switch 2.

Rotate Cam 2 clockwise until it comes in contact with

Switch 2's arm roller and the switch "breaks". A light

"click" can be heard. Tighten the set-screws on

Cam 2.

Energize the actuator. This will move the actuator to

the opposite end of travel.

RCS Actuators