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Jomar Valve ・ 7243 Miller Drive, Warren, MI 48092 ・ www.jomarvalve.com ・ phone: (586) 268-1220 ・ fax: (586) 979-8315
Note: Information subject to change without notice.
Cam attaching procedure
1. Use the DA face of cam to turn the actuator main shaft clockwise (as viewed from the positioner top view cover removed).
Use the RA face to turn it counterclockwise (reverse action). Correctly attach the cam to the flange part of feedback shaft.
2. Attach the cam by loosening the hexagonal nut with flange first, setting actuator to the starting position and then
setting the cam reference line and the bearing contact point of span adjusting arm unit to the matching position.
3. Do not apply the supply pressure when attaching the cam as otherwise it is very dangerous.
4. When the positioner is shipped out of our plant, the cam is tentatively tightened to the shaft. Be
sure to firmly lock the cam to the lock nut (tightening torque approx 18 inch. Pounds).
Attaching procedure of opening degree indication plate
Lock the cam and then adjust the zero point and span. Then fix the opening degree indication plate to the shaft using the M3
screw provided. At this time, set the opening degree indication plate to the reference line.
Air Piping Connection
1. Fully purge the pipe to remove foreign matter.
2. Use a clean supply air fully removed of humidity and dust.
3. Use filter regulator to keep supply air pressure constant.
4. When using the double acting type as single acting type, plug either OUT1 or
OUT2 and also remove the pressure gauge to close its connection.
