Electro-Pneumatic Positioner
YT-1000R
8-3. Cam attaching procedure
(1) Use the DA face of cam to turn
the actuator main shaft clockwise
(viewed from the positioner front
cover side) at the time of input
feedback shaft. Use the RA face to
turn it counter-
clockwise (reverse action). Correctly
attach the cam to the flange part of
feedback shaft.
(2) Attach the cam in the procedure of loosening the hexagonal nut with flange
first, setting the using 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 2.0 ∼ 2.5 Nm (20 ∼ 25 kgfcm).
8-4. 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 the time, set the
opening degree indication
plate to the state of
attaching reference line.
ЧП
Мельникова
http://kran.net.ua E-mail: [email protected]
