--- title: Locker Solenoid Setup description: When setting up solenoids for ARB Airlockers there are a few key things to make sure are setup correctly. The solenoid consists of several parts including... --- [Skip to content](https://assist.arb.com.au/knowledgebase/locker-solenoid-setup#main-content) English - Australia Show submenu for translations ![](https://assist.arb.com.au/hs-fs/hubfs/ARB_Logo_2022_Black_Horiz_RGB-01-reduced.png?width=300&height=69&name=ARB_Logo_2022_Black_Horiz_RGB-01-reduced.png) Open main navigation Close main navigation - English - Australia Show submenu for translations - Contact us Contact us How can we help you? - There are no suggestions because the search field is empty. 1. [ARB Knowledgebase](https://assist.arb.com.au/knowledgebase?hsLang=en-au) 2. [PRODUCTS](https://assist.arb.com.au/knowledgebase/products?hsLang=en-au) 3. [FAQ: Air Lockers](https://assist.arb.com.au/knowledgebase/products?hsLang=en-au#faq-air-lockers) # Locker Solenoid Setup When setting up solenoids for ARB Airlockers there are a few key things to make sure are setup correctly. The solenoid consists of several parts including the valve body that has multiple ports. It is crucial that when you  are setting up the locker that your air fittings are installed in the correct port for the solenoid to work correctly.    ![](https://assist.arb.com.au/hs-fs/hubfs/Knowledge%20Base%20Import/51218855669913.png?width=590&height=787&name=51218855669913.png) The way that the solenoid is setup in the image on the left  using the #2 port is the correct for when lockers are being  used.  This setup is correct for the locker or air triggered  accessory to be activated and deactivated using the toggle  switches. The locker solenoids can be attached and oriented in  multiple different directions and can be flipped to face the  opposite way. Regardless of the orientation or direction  you need your airline to route, the push-in fitting should  always be plumbed to the number 2 position as that is the  regulated output for use with an on/off switch.       ![](https://assist.arb.com.au/hs-fs/hubfs/Knowledge%20Base%20Import/51218885293209.png?width=587&height=785&name=51218885293209.png) If the push-in fitting is plumbed to the #1 position, it will  send air to the locker as soon as the manifold that the  solenoid is plumbed into comes up to pressure. This means  that even with the locker switch in the off position the  locker will be engaged. The only way to depressurize the  locker in this event is to remove the air line from the  solenoid.               ![](https://assist.arb.com.au/hs-fs/hubfs/Knowledge%20Base%20Import/51218824806681.png?width=388&height=535&name=51218824806681.png) The solenoids can also be stacked using the position 1  inlet/outlet to be used as a piggybacked set-up for running  multiple solenoids from a common manifold outlet. If you  have your solenoids piggybacked, you should always have  your push-in fitting in position 2. 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