MacDon HC10, Operation And Parts Manual

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OPERATION
3. From the rear of the conditioner, position tool at center
of rolls (A) as shown in illustration at right, and manually
turn rolls to limits of tool. Rolls will engage the tool if
timing is correct.
4. Manually turn rolls to release tool.
WARNING
Remove tool from rolls and return it to storage
location before starting machine.
5. Replace tool on conditioner with washer and wing nut.
6. If roll timing is correct, skip remaining steps. If roll
timing needs adjusting, continue to the next step.
Figure 4.35: Roll Timing Tool
A - Start Position B - Gauge Position
7. Loosen the four bolts (A) on one of the small
timing gears.
8. Insert tool as described above and allow rolls to adjust
to tool.
9. Tighten bolts on timing gear.
10. Return tool to storage position.
Figure 4.36: Timing Gear
4.9.4 Adjusting Conditioner Roll Tension
The conditioner roll tension is maintained by two tension springs providing adequate pressure for correct
conditioning of the crop. These springs also allow the rolls to open to allow passage of small solid objects without
damage to the rolls.
1. Locate the adjustment nuts on top of the
conditioner channel.
2. Loosen jam nuts (A).
3. Turn adjusting nut (B) clockwise to increase tension,
and counterclockwise to decrease tension.
4. Adjust nuts (B) on both sides equal amounts.
5. Tighten jam nut (A).
Figure 4.37: Conditioner Channel
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Revision A