Maintenance
31
TROUBLE SHOOTING AND CAUSES
Excessive skipping :
• Transfer scraper too low (incorrect
setting on indicator).
• Transfer scraper is bent (no flat).
• Seed disc is bend or worn.
• Transfer scraper is dirty with chemical
product.
• Plastic wear surface of metering box
warped or used up.
• Holes of seed disc too small (do not
match).
• Holes of seed clogged (sugarbeets,
rapeseed, cabbage). To be double
checked from time to time.
• Excessive working speed.
• Defective vacuum hoses.
• Insufficient vacuum suction.
• PTO speed is to low.
• Foreign material mixed with seed.
• Seed blockage in the hopper (seed
treatment product too moist).
• Fan belt is too loose.
Excessive Doubling :
• Transfer scraper too high (bad setting on
indicator).
• Transfer scraper worn.
• Holes seed disc too large (do not fit).
• Excessive PTO speed.
• Excessive working speed.
• Seed level too high in the metering box.
Irregular Seeding (skipping-doubles) :
• Excessive working speed.
• Holes of seed disc too large (cut off
seeds).
• Field are too steep.
• Shutter adjusted incorrectly.
• Ejector is damaged.
Irregular spacing :
• Excessive working speed.
• Soil too wet and stricking to drive wheel
tires.
• Incorrect tire pressure
• Shutter adjusted incorrectly.
Safety slipcluch is actived :
• Seizing of metering box
• Foreign material in the seed.
• Blockage in transmission units.
Fertilizer :
• Foreign material in fertilizer.
• Clods/clumps in fertilizer.
• Clogging of outlet or chute caused by
moisture.
• Auger is defective (warped).
Microsem (Output varies between chutes
and cases) :
• Foreign material mixed with product.
• Attention : moisture in product.
• Improper assembly of metering unit
(auger reversed).
• Outlet chute unit warped.
• Hose clogged because too long or bent.
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