Table of Contents
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Solenoid Key Release Unit and Time Delay Key Release Unit
Type SKPM.........................................................
Type SKRU ........................................................ Page 3
Type SKRU Wiring Diagram................................. Page 4
Type TDKRU........................................................ Page 5
Type TDKRU Wiring Diagram............................... Page 6
Key Control and Duplicate Keys.......................
Service and Maintenance................................
Duplicate Key Release Form.............................
Proper installation of key interlocks is a critical element of a key interlock system. It is essential that
each SKPM, SKRU, or TDKRU be installed so that the key(s) cannot be released unless the
equipment to which it is installed is in the proper position/condition. After installation of the interlocks,
the complete interlock system should be tested sequentially by person(s) familiar with the entire
system and its intended purpose. Any problems or discrepancies must be corrected prior to
energization.
Each interlock is supplied with a key in each cylinder. These keys are needed during installation of
the interlocks. Once the complete interlock system is installed, all extra keys must be removed from
the system and destroyed or retained by a responsible person. There should only be enough keys to
operate the interlock system sequentially. Kirk Key Interlock Company will not be responsible for
extra keys left in the interlock system.
IB/KRU/06
Instruction Manual for:
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400
Toll Free: 1.800.438.2442
Installation Instructions
www.kirkkey.com
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Table of Contents
Summary of Contents for Kirk SKPM
- Page 1 Proper installation of key interlocks is a critical element of a key interlock system. It is essential that each SKPM, SKRU, or TDKRU be installed so that the key(s) cannot be released unless the equipment to which it is installed is in the proper position/condition. After installation of the interlocks, the complete interlock system should be tested sequentially by person(s) familiar with the entire system and its intended purpose.
- Page 2 NOTE: The key is held in the SKPM until the solenoid is energized. The drawing shows the position of the contacts when the key is held. Once the solenoid is energized and the key is rotated and released, the contacts will change state.
- Page 3 Instruction Manual for: Solenoid Key Release Unit and Time Delay Key Release Unit ® KIRK Solenoid Key Release Unit (Type SKRU) The SKRU consists of a keyed interlock, a solenoid, and a DPDT (quick-make, quick-break) auxiliary switch. The SKRU is designed to permit removal of a key (or keys) in response to an electric signal.
- Page 4 Instruction Manual for: Solenoid Key Release Unit and Time Delay Key Release Unit ® KIRK Solenoid Key Release Unit (Type SKRU) Wiring Diagram SIGNAL LAMP INDICATES WHEN SOLENOID IS ENERGIZED. PUSH BUTTON (Close to Energize Solenoid) SOLENOID NORMALLY DEENERGIZED CIR. A CIR.
- Page 5 Solenoid Key Release Unit and Time Delay Key Release Unit ® KIRK Time Delay Key Release Unit (Type TDKRU) The TDKRU is comprised of two key interlocks, a timing device, a solenoid, and an indicating light. The unit is available housed in an aluminum enclosure or unhoused with front cover only. All electrical components are wired out to a terminal block.
- Page 6 Instruction Manual for: Solenoid Key Release Unit and Time Delay Key Release Unit ® KIRK Time Delay Key Release Unit (Type TDKRU) Wiring Diagram POWER SOURCE TIMING RELAY SOLENOID TERMINAL AUX. SW. BLOCK SIGNAL LIGHT INTERLOCKS TDKRU Wiring Instructions 1) Mount the TDKRU in the panel or enclosure.
- Page 7 1) Copy the duplicate key release form on pages 9 and 10 of this manual, or print from http://www.kirkkey.com. 2) Complete the form and sign your name. 3) Fax the form to Kirk Key Interlock Company for immediate delivery, at 330-833-1528. IB/KRU/06...
- Page 8 Kirk Key Interlock Company cannot warranty interlocks that have been oiled. Kirk Key Interlock Company offers a Graphite Lubrication Kit (part number GL-1) complete with instructions for use. The powdered graphite is supplied in a plastic tube that can be "squeezed" to force a small amount of graphite into the lock cylinder.
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