Almaco SPC 20, Руководство оператора

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SPC 20 OPERATOR’S MANUAL
OPERATION C-11
Cylinder / Concave Clearance -
Cylinder / Concave Clearance is another critical aspect to produce proper threshing action without
suffering seed damage. Examine the discharge at the rear of the machine reduce clearance if there
is still seed on the plant, which may require the ground speed and header speed to be reduced.
Increase clearance and/or slow down threshing cylinder if the discharge or samples are severely
damaged.
Locate desired crop or similar crop on
Table C-1 Cylinder / Concave Setting Chart below. This will
give you a place to start. This setting may need to go up or down depending on crop and field
conditions. Turn clearance adjuster clockwise to decrease clearance or counter clockwise to
increase clearance. Be sure to spin the threshing cylinder over by hand to insure there is no contact
between the cylinder and concave.
CROP CYLINDER (RPM) CLEARANCE (Inches)
Barley
900 1/4
Beans, Edible 550 1/2”
Beans, Soy 650 1/4”
Corn
575 7/8” – 1-1/4”
Oats
1000 1/8” – 3/16”
Rape Seed 900 3/16”
Rice
850 3/8”
Sorghums
900 1/2”
Sunflower 800 1/2”
Wheat
1000 1/8” – 3/16”
Winnowing Blower -
The Winnowing Blower creates air flow for the cleaning system. Both the speed and volume of air
are adjustable. Air speed is adjustable by a variable pitch sheave located on the blower shaft. To
adjust sheave:
1. Loosen set screw holding key between hub and sheave half. Do not loosen set screw holding key
between hub and shaft.
2. Remove key
3. Rotate sheave clockwise (decrease distance between sheaves halves) to decrease speed,
counter-clockwise (increase distance between halves) to increase speed.
4. Rotate sheave in half rotation increments and replace key
5. Tighten set screw
Adjust air volume with shutter located just behind winnowing blower on left side of the machine. If
seed is being blow out the rear of the machine close the shutter until only seed falls through air
stream, but trash is blown out the rear of the machine. If the sample is ‘dirty’ the shutter should be
opened. If the shutter is opened completely it may be necessary to increase the speed of the blower
shaft. In this case the problem is not normally due to the winnowing blower, but a problem with the
threshing cylinder and concave clearance. Try decreasing threshing cylinder speed, or increasing
concave/cylinder clearance before adjusting sheave.
TABLE C-1 Concave / Cylinder Settings Chart