Dresser RCS Sure 100 Installationshandbuch

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RCS Sure 100

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 a minimum 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 100 (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 a 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 clock

wise (fail) position. Ensure the end of travel stop is properly

adjusted. Loosen the jam nut, and then rotate the screw

clockwise to move the actuator output shaft in a

counter-clockwise direction. Rotate the screw

in a counter-clock wise direction to move the actuator

output shaft in a clockwise direction. Loosen the setscrews

on Cams 1 and 3. Rotate both counter-clockwise until they

clear the switch arm rollers of Switches 1 and 3.

Rotate Cam 1 clockwise until it comes in contact with Switch

1's arm roller and the switch "breaks". A light "click" can be

heard. Tighten the set-screws on Cam 1. Use care

to not over-tighten the set screws.

Rotate Cam 3 clockwise until it comes in contact with Switch

3's arm roller and the switch just "breaks". A light "click" can

be heard.

Rotate Cam 3 slightly further in the clockwise direction. This

ensures that Switch 3 will "break" just prior to the actuator

reaching the full fail position. Use care to not over-tighten

the set screws.Tighten the setscrews on Cam 3. Energize the

actuator. Use care to not over-tighten the set screws. This will

move the actuator to the opposite end of travel.

CAUTION

Closely monitor the electrical stroke, as the travel

limit switches are not yet properly adjusted. Ensure

the actuator does not over-travel and damage the

driven equipment.

RCS Actuators