Grain quality
Excessive cracked grain in grain tank
Possible Cause
Correction
Crop too damp or green.
Wait for crop conditions to improve.
Cylinder speed too fast for crop grain
cracking but still do a good job.
Decrease cylinder speed just enough to
stop threshing.
Uneven feeding or slugs entering
cylinder.
Refer to section on
UNEVEN OR BUNCHED
FEEDING (PG. 16).
Engine not up to correct speed.
See your dealer.
Concave not level.
Level concave to cylinder.
Insufficient material entering cylinder.
Increase ground speed for more intake
of material.
Dented conveyor housings, bent
conveyor shafts or worn conveyor
flighting.
Check each conveyor in the combine
and header and correct. Remove
dents from conveyor housings to
achieve adequate clearance with auger.
Straighten or replace bent conveyors.
Repair or replace conveyors with worn
or damaged conveyor flighting.
Concave clearance too close.
Increase concave clearance.
Excessive tailings return.
Adjust the cleaning shoe to reduce
tailings. On combines equipped with
optional tailings return, adjust handle to
return tailings to distribution augers.
Grain remains in cage too long.
Remove concave filler bars.
Excessive feed chain speed.
Check feed chain drive sheave
installation on right-hand end of feeder
countershaft. With grain header, belts
driving off larger sheave diameter. With
corn header, belts driving off smaller
sheave diameter. V/S header drive must
be locked into low speed position when
operating grain header.
Worn cylinder bars.
Replace cylinder bars.
Kernel moisture too high.
Wait for crop to mature.
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