The deflators are supplied at a preset pressure, however you can adjust this pressure to your desired level. It is not necessary to reset them again unless you wish to change the psi that you want to reduce your tyre pressure to.
Exactly how much you reduce your tyre pressure depends on a variety of factors, such as how much weight your tyres are supporting. Additionally the softness of the surface that you are travelling on will also affect how much you need to let your tyres down. Through trial and error you can find your personal preference and determine what tyre pressure suits you.
Staun Tyre Deflators do not have a minimum start off pressure so you do not need to bring your tyre pressure back up in order to reduce it further. Simply turn the adjusting cap anti-clockwise to further reduce your tyre pressure. If they do not start automatically you can manually start them by lifting the pin. Please check your product header card for individual pressure settings.
The Staun Tyre Deflators need to be screwed on using the finger grip located at the base of the deflator body. Do not use the adjusting cap or lock ring to fix the deflator to the valve stem. For a comprehensive demonstration on how to install the deflators onto your tyres please view the video above.
SCVLD
This deflator has been designed for those who require lower pressure ranges with extreme accuracy. Suitable for competitive Rock Crawlers & Dune Buggies who deflate to as low as 4 – 5 psi with bead locks.
This model comes preset at 7 psi and has an adjustment of 2 psi per half turn and 4 psi per full turn of the adjustment cap. It also only requires 2 psi above its preset pressure to start automatically, but can be manually started by lifting the pin as little as 1 psi above the preset pressure.
SCV5
This deflator has been designed to suit most 4WD deflation needs. Suitable for beach or bush pressures it comes preset at 18psi and is accurate to within 0.25psi.
It has an adjustment of 3psi per half turn and 6psi per full turn of the adjustment cap. Requiring 12 psi above its preset pressure to start automatically, they can be started manually by lifting the pin at as little as 2 psi above its preset pressure.
SCVHD
The heavy duty deflators are distinguished from the standard by having an extra exhaust hole.
This deflator is designed to deflate to and from higher pressures. It is also accurate to within 0.25psi. Designed for use in the light to heavy trucking industry, it is also suitable for agricultural and farming equipment.
This model comes preset at 35psi and has an adjustment of 4psi per half turn and 8psi per full turn of the adjustment cap. It requires 20psi above its preset pressure to start automatically or can be manually started by lifting the pin at as little as 2 psi above its preset pressure.
SCV5/HD
This unique set comes with 4 Standard deflators and 2 Heavy Duty deflators. Designed to suit those who tow camper trailers and vans off road and on the beach. While your 4WD tyres are deflated to your preferred pressure, the trailer would normally deflate to different pressures based on the weight of the trailer/van.
This set allows you to deflate your 4WD and trailer at the same time without having to adjust your 4WD deflators to deflate your trailer/van. Your 4 Standard deflators are preset at 18psi and the 2 Heavy Duty deflators are preset at 22psi.