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G P - 5 0 G R A I N P R O C E S S O R
O P E R A T I N G I N S T R U C T I O N S
2.2.5 Hopper
The purpose of the hopper is to contain the material above the rotor, and keep the rotor loaded.
2.2.6 Hydraulic Tilt Platform
The GP-50 Grain Processor hopper can be tilted 90 degrees for access to the rotor, screens, and drive line. Operation
of the hopper tilt cylinder is performed using the controls for the tractor’s second hydraulic circuit which are located on
the tractor. A ball valve (3800906) is connected behind the coupler for safety purposes. The ball valve remains closed
(perpendicular) during the machine operation. After using the normal shutdown procedures, the hopper platform can
then be opened. The ball valve needs to be open (parallel) for this procedure.
WARNING:
To prevent serious injury or death, do not tilt platform on uneven ground or with
material in the hopper.
2.2.7 Conveyor lifting and folding
Manual valve on the GP-50 Grain Processor controls the conveyor lift and fold. The tractor supplies hydraulic oil for
operating the conveyor lift and fold system. Activate the tractor hydraulic circuit before operating the valve on the GP-
50 Grain Processor.
To correct a reverse flow, either change the hoses around where they connect to the tractor, or reverse the tractor
operating lever position. On a tractor with adjustable hydraulic flow rate, adjust the oil flow to a minimum rate and
adjust for adequate function speed.
