Dresser MAR Series Руководство по установке - Страница 5

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Dresser MAR Series Руководство по установке
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e.
If auxiliary switches were provided, continue to rotate Cam
4 about 2 degrees in the same direction. Then tighten the
setscrew. This will ensure that Switch 4 "makes" when the
actuator reaches the full open position.
f.
If travel is not correct, repeat steps (a) through (e).
Replace the cover and tighten all flange bolts.
Replace manual de-clutching knob and tighten setscrew.
The actuator is now ready for electrical operation.
Set
Screw
Cam 4
Cam 3
Cam 2
Cam 1
CAUTION
To prevent ignition of hazardous atmospheres, do not
remove actuator cover while curcuits are live.
Cam Adjustment–Groups 12/16: MAR100,
120, 160, 250 & 800;
DCR100, 160, 250 & 800–Part Turn
Models (new style)
Cam adjustments (if required), as follows:
Open (counter-clockwise) direction of travel:
a.
Loosen setscrew on Cam 2 (and Cam 4 for auxiliary
switches) to give the cam(s) a finger tight grip on the shaft.
Rotate cam(s) in a clockwise direction away from the
switch.
b.
Manually move the actuator to the full "open" (CCW)
position.
c.
Rotate Cam 2 (and Cam 4) counter-clockwise until it
engages the switch roller and the switch just "breaks". You
should hear a light click.
d.
Tighten the setscrew on Cam 2.
e.
If auxiliary switches were provided, rotate Cam 4 about 2
degrees in the counter-clockwise direction. Then tighten
the setscrew. This will ensure that Switch 4 "makes" when
the actuator reaches the full open position.
f.
Close (clockwise) direction of travel:
a.
b.
c.
d.
Switch 4
e.
Switch 3
Switch 2
Switch 1
f.
Replace the cover and tighten all flange bolts.
Replace manual handwheel, pin, washer and bolt.
The actuator is now ready for electrical operation.
To prevent ignition of hazardous atmospheres, do not
remove actuator cover while curcuits are live.
Cam Adjustment–Groups 12 & 16:
MAR100, 120, 160, 250 & 800 plus
DCR100, 160, 250 & 800–Part Turn
Models (old style)
Cam adjustments (if required), as follows:
Open (counter-clockwise) direction of travel:
a.
5
If travel is not correct, repeat steps (a) through (e).
Loosen setscrew on Cam 1 (and Cam 3 for auxiliary
switches) to give the cam(s) a finger tight grip on the shaft.
Rotate cam(s) in a counter-clockwise direction away from
the switch.
Manually move the actuator to the full "close" (CW)
position.
Rotate Cam 1 (and Cam 3) clockwise until it engages the
switch roller and the switch just "breaks". You should hear
a light click.
Tighten the setscrew on Cam 1.
If auxiliary switches were provided, rotate Cam 3 about 2
degrees in the clockwise direction. Then tighten the
setscrew. This will ensure that Switch 3 "makes" when the
actuator reaches the full open position.
If travel is not correct, repeat steps (a) through (e).
Cam 4
Set Screw
Cam 3
Cam 2
Cam 1
CAUTION
Loosen setscrew on Cam 7 (and Cams 9 & 11 for auxiliary
switches) to give the cam(s) a finger tight grip on the shaft.
Rotate cam(s) in a clockwise direction away from the switch.