Processor
Cylinder vibration
Possible Cause Correction
Dirt and material stuck to inside of
cylinder bars.
Clean material from inside of cylinder
bars.
Vibration caused by cylinder drive.
Place cylinder drive gearbox in neutral
and operate cylinder drive through its
variable speed range to determine if
vibration is still present. If so, check the
following:
1. V/S drive and driven sheaves for
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 back in
High or Low gear.
Grain loss from cylinder
Possible Cause Correction
Engine not up to correct speed.
Adjust engine high idle to proper
speed.
Insufficient material entering cylinder.
Increase ground speed for more intake
of material (corn only).
Uneven feed to cylinder.
Refer to section on UNEVEN OR BUNCHED
FEEDING (PG. 16).
Cylinder speed too high or too low.
Try various cylinder speeds to
determine optimal speed for threshing
and separating.
Insufficient threshing at concave. Decrease concave clearance.
Grain not coming out of cage. Install two extra reverse cylinder bars.
Excessive loss out of discharge
Remove helicals bolted to rear
separator door (milo & high moisture
corn).
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