HARRISTON INDUSTRIES 93066, Руководство оператора

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5.2 Maintenance
5.2.1 CLAMP WHEEL DRIVE SPROCKET
Each clamp wheel is driven by a sprocket that mates with a roller chain on the circumference of the
wheel. To check and adjust the clearance, follow this procedure:
a. Checking clearance
Hold the clamp wheel in a stationary position and turn the drive sprocket by hand. The teeth on the
sprocket should move approximately 1/16 inch (1.5 mm) to have proper clearance.
Less clearance or movement can introduce vibration into the clamp wheel, and will cause uneven plant
spacing.
b. Adjusting clearance
Loosen the bearing mount bolts on the sprocket shaft. Move bearing and shaft to the required position.
Tighten the bearing bolts to their specified torque.
5.2.2 Clamp Wheel to Seed Bowl Clearance
The machine is designed to have a tapered clearance between the seed bowl and the clamp wheel. This
clearance provides a self-cleaning action, eliminates contact damage, and reduces drag on the seed
piece. To set or adjust this clearance, follow this procedure:
1. Clear the area of bystanders, especially small children.
2. Raise the machine and place safety stands under the
front frame.
3. Loosen the four bolts attaching the seed bowl to the
row unit frame.
4. Move the bowl to the desired position.
5. The clearance at the bottom should be 1/8 to 3/16
inches (3 to 4.5 mm).
6. The clearance at the top front of the seed bowl should
be 3/8 inch (9 mm).
7. The clearance between the bowl and the clamp arm
should be 1/8 inch to ¼ inch.
8. Measure the clearance dimensions carefully before
tightening mounting bolts.
9. Tighten mounting bolts to their specified torque
levels.
10. Remove safety stands.
Always support frame with safety
stands before working under machine.