and the drive belts for both the float and saw removed before the gratefall could be opened this required the operator to undertake several steps to open the gratefall including removing the belts while leaning over the motes and seed conveyors the present invention eliminates all hydraulic and pneumatic cylinders and releases the tension on the saw and float belts while the gratefall transitions from the closed to open position thus eliminating several steps and allowing the operator to remove the belts as needed from the front of the machines and also eliminates or replaces other forms of removing saw cylinder referring to fig1 to 4 in the current design saw motor 31 drives take off belt 32 to sheave 33 which is mounted to housing 11 at a fixed location a saw belt 35 is also entrained about sheave 33 and saw drive sheave 36 which is mounted on saw pivot arms 38 on each side of the delinter are pivotally rotated with gratefall assembly 41 about the same axis passing through pivot shaft 39 thus the saw drive sheave 36 is movable with the gratefall assembly 41 mounted to the saw cylinder pivot arm 38 and pivot shaft 39 and interposed between sheave 33 and saw drive sheave 36 is the saw.