Originally Posted by Dijoeboss
To my knowledge, if jacks are retracted and leveling system is turned off, there shouldn't be any pressure in the system, only will have pressure if the hydraulic pump motor is running......
Well not quite, the system maintains pressure "two blocked" on both sides of all pistons. This keeps the jacks and slides in position. Without system pressure the jacks will gravitate and slides are free to move. If you disable the motor + connection and bleed off the system you'll get rid of the pressue. Don't think any valves will work though, the pump power is applied to solenoid valves also. The system pressure is well over 1000 psi, need to be careful working on oil side.