The boom frame is fitted on the turbine housing with either manual or hydraulic height control (dependent on equipment and options).
In the upper part, this boom frame has 2 hydraulic lateral runners.
Left and right are independently hydraulically adjusted. Cannons are fitted on 2 lateral sites. They are adjustable (manual or electric with TELESIT option).
Distribution by means of 2 solenoid valves to control 2 independent sides by joystick. The joystick controls also the options of TELESIT or hydraulic lift.