The following
images demonstrate how to install the SL720 into a hydraulic cylinder
that has been modified to fit the sensor. Detail drawings of the
modifications needed to incorporate the SL720 are available by
contacting the factory.
The
SL720 is shown with the connection bolt for the flexible connector
fully retracted and ready for installation onto the piston. The
face of the piston has been machined to accommodate the sensor's
mounting flange and connection bolt.
Simply
place the sensor's connection bolt into the tapped hole of the piston
face and turn several times until the sensor fits snugly against
the piston.
The
rubber mounting flange and flexible connector will hold the sensor
in place.
Grasp
the sensor and pull to expose the flexible connector and tighten
the connection bolt with a wrench.
Gently
return the sensor to its position against the piston face.
Turn
the piston so that the flat face of the sensor coincides with the
fluid port of the end-cap and slide the piston into the cylinder.
Push
the piston so that the sensor bottoms-out on the end-cap. The
sensor is now embedded.
The
end-cap will have been modified with three additional holes: two
for 1/4-20 bolts and one for the signal conditioner connector.
The
mounting bolt holes are each 90 degrees from the fluid port. Screw
one bolt and then the other into the tapped holes. The lead-in
of the bolt holes on the sensor will adjust the sensor into proper
position to receive the signal conditioner connector.
Place
the signal conditioner connector into the remaining hole that is
180 degrees from the fluid port.
Tighten
the CPI supplied connector bushing into place. The sensor installation
is complete.
Align the keyway of the plastic insert with the bushing...
...and press down.
Make sure the insert is fully pressed down so that the lip does not protrude above the top of the bushing.
Line-up the keyway on the connector from the signal conditioner cable with the insert and tighten onto the bushing. The connector was designed with an anti-torque feature, so you will feel a ratcheting sensation when you've reached maximum tightness.
Uninstalling the SL Sensor
Remove the signal conditioner connector first.
Remove the bushing insert before unscrewing the bushing. Failure to do so will damage the connector pins. Use a small screwdriver or pick to remove the insert.
To prevent damage to the connector pins, use a pencil eraser or similar object to hold the pins stationary while you unscrew the bushing
Remove the pressure-seal connector by grasping the portion below the pins and pulling straight up.
Remove the mounting bolts from each side of the cylinder. The sensor is now unattached to the cylinder. Pull the piston out with the sensor attached--the sensor will dangle from the piston head. Carefully remove the piston head and sensor from the cylinder.
