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Cylinder vibration
Possible Cause Correction
Dirt and material stuck to insideof
cylinder bars.
Clean material from inside ofcylinder
bars.
Vibration caused by cylinderdrive.
Place cylinder drive gearbox in neutral
and operate cylinder drive through its
variable speed range to determine if
vibration is still present. If so, checkthe
following:
1. V/S drive and driven sheavesfor
condition and balance.
2. V/S cylinder drive belt.
3.Cylinder drive torque sensor, and
cylinder drive gearbox bearings and
gears.
Make sure to place gearbox backin
High or Low gear.
Grain loss from cylinder
Possible Cause Correction
Engine not up to correctspeed.
Adjust engine high idle toproper
speed.
Insufficient material entering cylinder.
Increase ground speed for moreintake
of material (cornonly).
Uneven feed to cylinder.
Refer to section on UNEVEN OR
BUNCHED FEEDING (PG. 16).
Cylinder speed too high or toolow.
Try various cylinder speeds to
determine optimal speed forthreshing
and separating.
Insufficient threshing at concave. Decrease concave clearance.
Grain not coming out ofcage. Install two extra reverse cylinderbars.
Excessive loss out ofdischarge
Remove helicals bolted to rear
separator door (milo & highmoisture
corn).
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