Cutterbar Spindle Shear Pin; Removing Cutterbar Spindle Shear Pin - MacDon R113 Operator's Manual

4.5.8 Cutterbar Spindle Shear Pin

To prevent damage to the cutterbar and drive systems,
each disc is attached to a spindle containing a shear pin (A).
If the disc contacts a large object such as a stone or stump,
the pin will shear and the disc will stop rotating and move
upwards while remaining attached to the spindle with a
snap ring (B).
IMPORTANT:
•
Ensure correct orientation of the shear pins during
replacement.
•
Spindles that rotate clockwise have left-leading
threading.
•
Spindles that rotate counterclockwise have right-leading
threading.

Removing Cutterbar Spindle Shear Pin

DANGER
To avoid bodily injury or death from unexpected startup of machine, always stop engine and remove key
from ignition before leaving operator's seat for any reason.
CAUTION
Discblades have two sharp cutting edges that can cause serious injury. Exercise caution and wear gloves
when working with blades.
1. Raise self-propelled disc header fully, shut off engine, and remove key.
2. Engage windrower lift cylinder safety props. Refer to
page 24.
214077
MAINTENANCE AND SERVICING
Figure 4.95: Cutterbar Spindles
3.3 Engaging and Disengaging Header Safety Props,
149
A
B
Revision A