Abstract: A cam operated safety switch (51) prevents the clutch device (21) for the drive for the unloading auger (34) from being shifted from a clutch disengaged position to a clutch engaged position whenever the unloading conveyor (37) is out of its crop unloading position. A branch circuit (98) with a diode (99) interconnects the tube swing switch (63) and the circuit (92) for declutching the unloading auger drive so that when the unloading conveyor (37) is swung from its unloading position to its transport position the clutch device (21) will automatically be placed in its clutch disengaged position.

Abstract: A fold-up ladder is provided for a combine which pivotally connects at its upper end to a deck adjacent an operator's cab at the forward end of the combine. The axis of the pivot connection at the upper end of the ladder substantially coincides with the edge of the deck and the edge of the upper step of the ladder. A gas spring is connected between the deck and the ladder to counterbalance the weight of the ladder as it swings from its lowered position to its overhead transport position. The gas spring has a desirable stabilizing influence on the ladder as it is raised and lowered. When the ladder is moved from its transport position to a lowered position, the line of force of the gas spring passes "overcenter" in relation to the ladder pivot axis thereby permitting the gas spring to releasably hold the ladder in its down position. Appropriate abutments are provided to properly position the ladder in its desired transport and lowered positions.