MacDon R113 SP, Operator'S Manual

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109
Revision A
5. Remove pin (or equivalent) from front hole of rock guard.
1021483
A
Figure 4.24: Cutterbar Doors
6. Close cutterbar doors (A). For instructions, refer to 3.7.3
Closing Cutterbar Doors, page 66 .
4.5.3 Replacing Cutterbar Spindles
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A
B
Figure 4.25: Cutterbar Spindles
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).
NOTE:
Once spindle has risen due to shear pin failure, the spindle
’
s
bearing will become unloaded. Do NOT replace the spindle due
to excessive play. Check play after torquing spindle nut and
replacing damaged shear pins.
Refer to 4.5.8 Replacing Cutterbar Spindle Shear Pin, page 149
to replace shear pin.
MAINTENANCE AND SERVICING