215333
212
Revision A
4.4.13
Replacing Cutterbar Spindle Shear Pin
1011409
A
B
Figure 4.176: 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).
IMPORTANT:
•
Ensure slots on both shear pins are aligned horizontally.
•
Spindles that rotate clockwise have right-leading threading.
•
Spindles that rotate counterclockwise have left-leading
threading.
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.
Removing Cutterbar Spindle Shear Pin
DANGER
To avoid bodily injury or death from unexpected start-up or fall of a raised machine, stop engine, remove key, and
engage lift cylinder lock-out valves before going under machine for any reason.
CAUTION
Disc blades have two sharp cutting edges that can cause serious injury. Exercise caution and wear gloves when working
with blades.
1.
Raise the rotary disc pull-type fully.
2.
Shut down the engine, and remove the key from the ignition.
3.
Engage lift lock-out valves. For instructions, refer to
4.
Open the cutterbar doors. For instructions, refer to
or
.
