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Problem
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Cause
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Remedy
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Poor threshing
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Low cylinder speed
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Increase engine speed. For proper threshing drum speed see Table 1.
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Cylinder drive belt slipping
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If the pulley is warm immediately after stopping, the belt is slipping. Adjust belt tension.
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Worn pegteeth
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Rotate teeth half turn or build-up by welding or interchange or replace with new pegs.
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Defective engine
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Service or replace engine.
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Hard threshing variety
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Use stripper bars.
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Too much broken straw on oscillating screen
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Over threshing
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Remove stripper bars. If problem remains, remove some peg-teeth from cylinder.
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High engine speed
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Reduce engine speed.
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Grain being blown over the wind-board
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Low wind-board inclination
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Increase wind-board angle
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Wide blower shutter opening
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Reduce blower shutter opening.
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High blower speed
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Reduce engine speed.
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Threshing cylinder stops
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Overfeeding
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Open cover and rotate cylinder in reverse by hand and remove clogged materials. (Warning: Ground engine spark plug).
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Loose or damaged belt
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Check for damaged belt or idler defect. Change if necessary.
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Loose or damaged belt
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Check for damaged belt or idler defect. Change if necessary.
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Loose or damaged pulley
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Check drive and driven pulley for defects, loose or lost screws.
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Abnormal metallic chattering sound
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Broken peg-teeth or loose straw-thrower bolts
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Inspect cylinder and remove any obstructions found.
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Engine trouble
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Refer to the engine manual
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Machine stalls
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Threshing cylinder clogged with straw
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Remove clogged material after stopping engine. Reduce feed rate, especially when threshing wet paddy.
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Spark plug accidentally shorted with straw.
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Remove straw and make sure straw is being thrown in same direction as prevailing wind.
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