KMC Controls MCP-1140 Series - Manual (Page 2)

Connections
♦
Use 1/4" (6 mm) O.D. polyethlyene tubing.
♦
Use only clean, dry control air. No attempt should be
made to use any other medium.
NOTE: If the application requires operation near the
maximum temperature and maximum pressure, add
a tubing restraint to the actuator connection.
1. Connect the signal (0 to 20 psig) to the 3/16" fitting on
the base of the actuator.
2. Slowly apply supply pressure to fully stroke the
actuator and linkage.
3. Check for any binding. Fine tuning can be
accomplished by adjusting the balljoint on the
pushrod.
Adjustments and Calibration
KMC Controls
19476 Industrial Drive
New Paris, IN 46553
574.831.5250
www. kmccontrols.com
010-019-01
Actuators with positioners contain an 8-13 psi
spring. A positioner allows the unit to operate over
any 5 psi span with the start-point adjustable from
3-10 psi. Replace the 5 psi spring with a 10 psi
spring to widen the span.
To change the positioner start-point:
1. Apply the desired signal pressure.
2. Rotate the start-point adjuster until the actuator
starts to stroke.
Maintenance
No routine maintenance is required.
Each component is designed for dependable, long
term reliability and performance.
DANGER
The MCP-1040 and MCP-1140 contain a large
powerful spring. Exercise extreme caution if
disassembly is required. The actuator shaft MUST
be restrained to prevent the spring from expanding.