Question: 

Will the hydraulics leak and fail over time?  What happens if they fail while I’m driving?

Answer: 

This hydraulic system is what you see on tractors and heavy construction equipment.  We designed this hydraulic system specifically for this application, from the pump cartridge, needle valve, pressure relief valve and pressure gauge.  It's also a closed loop system which prevents contamination.  Some of the hydraulic components you find on commercial airliners, for instance.    The zero-leak check valve used to maintain pressure on landing gear on commercial aircraft is the same we’ve used to hold pressure and maintain proper weight distribution.  The needle valve is also used in aerospace.  With metal on metal contact, there is no o-ring to degrade over time causing pressure loss. The cylinder is the same used on construction equipment.   The air fittings and hoses are DOT approved and used on over the road trucks.  Our system has been tested from -40°F to 150°F.

Max pressure on the hydraulics is around 3000 lbs, but the max reset pressure is set to 2500 lbs, so you will never reach that maximum.   Pump it past 2500 lbs and you will hear the air escaping from the pressure relief valve.

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