Rockford Systems, LLC
Call: 1-800-922-7533
12
SECTION 2—INSTALLATION OF COMPONENTS
Adjustable Stroke Detect-A-Finger
®
Drop-Probe Device
Other Components That May Be Required
If the machine being safeguarded with a DAF-series drop-probe Detect-A-Finger® has single-stroke capability, the following additional components
may be required to trip or cycle the machine.
AIR CYLINDER (If furnished—See enclosed manual KSL-096)
An air cylinder can be used to convert mechanical operation of the machine to electro-pneumatic operation. The cylinder bore and stroke (pull- or
push-type) can be determined from actual machine measurements and the location of attachment to the machine’s linkage. The air cylinder is
controlled by a dual-solenoid air valve; an air lockout valve is used to employ smooth arm movement; and a filter-regulator-lubricator assembly is
also needed.
An RCL-series single-acting, spring-return air cylinder has a standard swivel-clevis mount. Mount the air cylinder in the most logical position so
the yoke can be attached to the machine linkage, with the air inlet oriented toward the dual-solenoid air valve.
The main requirement for the air
cylinder mounting location is that the piston rod will have a straight, inline pull (or push) when attached to the operating linkage.
Adjust
so the air cylinder bottoms at the end of each stroke. Be sure the rod stroke is not too long because it could cause jackknifing of the cylinder. Also,
too much air pressure may damage the operating linkage.
Make certain that the drive yoke and lock nut are located approximately halfway down on the threaded portion of the piston rod in order to provide
up or down adjustment when necessary. Attach one end of the flexible rubber hose from the dual-solenoid air valve into the threaded inlet port on
the air cylinder and tighten firmly.
Lbs. Pull
(@ 75 PSI)
Bore
(Inches)
Stroke
(Inches)
Part
Number
50
100
200
1.125
1.500
2.000
1.0
1.0
2.0
RCL-001
RCL-002
RCL-003
Pull
Overall Length
Overall
Length
10.25”
15.75”
19.75”
RCL-Series Air Cylinders
MONITORED DUAL-SOLENOID AIR VALVE (If furnished—See enclosed manual KSL-285)
This three-way, 1⁄4” monitored dual-solenoid air valve is pneumatically checked and is used to operate an air
cylinder. This dual-solenoid air valve should be mounted as close to the air cylinder as possible.
The exhaust air muffler must be kept clean at all times. Never operate the machine unless the
muffler is clean. The muffler must be cleaned on a regular basis.
For safety reasons, do not install any pneumatic devices between the dual-solenoid air valve
and the air cylinder
.
Monitored
Dual-Solenoid
Air Valve
Part No.
RCD-140
SINGLE-SOLENOID AIR VALVE ASSEMBLY (If furnished—See enclosed manual KSL-151)
This single-solenoid air valve is a three-way, normally closed, quick-exhaust type. This assembly consists of the
electric air solenoid valve, exhaust air muffler, steel mounting bracket, and flexible hose.
The exhaust air muffler must be kept clean at all times. Never operate the machine unless the
muffler is clean. The muffler must be cleaned on a regular basis.
Single-solenoid Air
Valve Assembly Part
No. RCD-006
