HARRISTON INDUSTRIES 93066, Руководство оператора

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4.10.3 CLAMP WHEEL CAM
Each clamp wheel is equipped with a cam mounted on the machine frame that contacts the spring loaded
clamp trip arm. The cam is located on the lower segment of the clamp wheel arc.
As the clamp wheel rotates, the trip arm roller should contact the cam at the 3:15 position. This cam
contact point will open the clamp away from the wheel, allowing the seed to drop in front of seed bowl
for planting.
It is very important that the cam and roller are aligned to give a dynamic release and clamping action by
the clamp arms. Each clamp assembly must have a spring to provide the force to close the clamp arm to
line up the next seed for clamping.
CLAMP WHEEL CAM ADJUSTMENT
As the clamp wheel turns, the roller on the end of the trip arms contacts the adjustable cam. The cam
should contact the rollers at the 4:00 position to release seed piece and 8:00 position to clamp the next
seed. All new planters come pre-set from factory with a clamp opening of 3” at the drop point and 2” ¼
at the grabbing position. The drop point should not need to be adjusted, but should always open the clamp
at least ¼ more than the grab point.
To adjust the cam for alignment with the roller movement, follow this procedure:
1. Loosen the cam mounting bolts on the front and rear of the cam, with 15/16 wrench.
2. Adjust cam to the required position.
3. Rotate the clamp wheel to check roller alignment and clamp arm movement on each clamp
assembly.
4. Ensure the rollers ride on the cam. Adjust the cam vertically if needed.
5. Tighten the mounting bolts.