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Before the start of each harvesting season, check the following feeder house adjustments.
Level the Header - Check tire pressure. Raise the header and take a position approximately 4.6 m (15 ft.) in front of the combine. Compare the bottom of the header with the bottom of the front axle; they should be parallel.
If the header is not level, more crop will be taken in on the low side and will cause uneven feeding (see LEVELING THE HEADER in the Feeder House section of this manual).
Adjust Conveyor "Float" - Conveyor chain must be 3 mm (1/8-in.) for grain or 25 mm (1 in.) for corn as measured between a conveyor slat and feeder house bottom, directly under feeder drum.
If the feeder drum is not level, more crop will be taken in on the wide side and will cause uneven feeding to the cylinder/concave (see ADJUSTING CONVEYOR "FLOAT" in the Feeder House section of this manual).
Adjust Feeder Conveyor Chain Tension - Set conveyor drum "float" to grain position. The left- and right-hand side chains should just touch the wear strip. This setting is the tightest the chain should ever be run. See ADJUSTING FEEDER CONVEYOR CHAIN in the Feeder House section of this manual.
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Changing Feeder Conveyor Speed - The variable speed feeder house changes the speed of the corn head or row-crop head. If it is used with a platform, the drive must be slowed all the way down to prevent rapid wear to cutterbar parts.
Running the drive chain on the large sprocket (high speed) is the recommended position for most crops. The small sprocket (slow speed) is available for corn and edible beans (see CHANGING FEEDER CONVEYOR SPEED in the Feeder House Section of this manual).
Adjusting Variable Speed Feeder House Drive Sheave Gap - Adjust the feeder house speed to the low position to close the lower sheaves. If sheave gap is more than 4 mm (5/32 in.), it limits sheave travel. If sheave gap is less than 3 mm (1/8 in.) it limits torque sensing. Improper adjustment may cause belt slipping or belt failure. See ADJUSTING VARIABLE SPEED FEEDER HOUSE BELT in the Feeder House section of this manual. (see ADJUSTING VARIABLE SPEED FEEDER HOUSE BELT in the Feeder House section of this manual).
Adjusting Fixed Speed Feeder House Belt - Improper adjustment may cause belt slipping or belt failure (see ADJUSTING FIXED SPEED FEEDER HOUSE BELT in the Feeder House section of this manual).
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