MacDon FlexDraper FD1 Series, Operator'S Manual, Page: 64 / 510

OPERATION
Checking and Adjusting Feed Auger Spring Tension
The feed auger has an adjustable spring tensioning system that allows the auger to fl oat on top of the crop instead
of crushing and damaging it. The tension is factory-set and is adequate for most crop conditions.
DANGER
To avoid bodily injury or death from unexpected start-up of machine, always stop engine and remove key
from ignition before leaving operator’s seat for any reason.
1. Raise header to full height, shut down combine, and
remove key from ignition.
2. Engage header lift cylinder safety props.
3. Check the thread length protruding past the nut (B).
Length should be 7/8–1 in. (22–26 mm).
If adjustment is required, follow these steps:
4. Loosen the upper jam nut (A) on spring tensioner.
5. Turn lower nut (B) until the length of protruding
thread (C) is 7/8–1 in. (22–26 mm).
6. Tighten jam nut (A).
7. Repeat for opposite side.
Figure 3.27: Spring Tensioner
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Revision A