support 148 now referring to fig7 there is shown a close up elevation view of a front conveyor support portion of the system and configuration shown in fig2 overhead conveyor head support section 15 is held in place by upper slide arm 71 and lower slide arm 72 which are coupled via sliding connection point 73 the length of upper slide arm 71 and lower slide arm 72 is controlled by hydraulic adjustable arm 74 which is coupled at a lower end to lower slide arm 72 which is coupled at pivot point 76 to screen base frame secured support structure 75 hydraulic adjustable arm 74 is coupled at an upper end to upper slide arm 71 which is coupled to overhead conveyor head support section 15 at conveyor to slide arm pivot point 77 in this horizontal operational configuration overhead conveyor head support section 15 is directly above but separated from screen 1 now referring to fig8 there is shown a close up elevation view of a front conveyor support portion of the system and configuration shown in fig5 overhead conveyor head support section 15 is clearly shown disposed at least in part within a top portion of screen 1 now referring to fig9 there is shown a plan view of the top of portions of the system and configuration of fig5 now referring to fig1 which shows a close up elevation view of a tail section slide pivot support portion of the system and configuration shown in fig2 the bracket 200 is fixed to the wheeled chassis 4 while the.