Cutterbar Spindles; Removing Cutterbar Spindles - MacDon R113 Operator's Manual

4.4.3 Cutterbar Spindles

Discs are factory installed to produce a three crop stream, but disc rotation patterns can be changed to suit
crop conditions.
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 pins will shear and the disc will stop rotating
and move upwards while remaining attached to the spindle
with a snap ring (B). Refer to
to replace shear pin.
Shear Pin, page 175
IMPORTANT:
• Spindles that
right-handed threading and a smooth top on the
spindle gear shaft (A).
• Spindles that rotate counterclockwise have left-handed
threading and machined grooves on the spindle gear
shaft (B).

Removing Cutterbar Spindles

DANGER
To avoid bodily injury or death from unexpected start-up or fall of a raised machine, stop engine, remove
key, and engage header lift cylinder lock-out valves before going under machine for any reason.
147910
MAINTENANCE AND SERVICING
4.4.11 Cutterbar Spindle
rotate clockwise
Figure 4.29: Cutterbar Spindles
have
Figure 4.30: Cutterbar Spindles
134
Revision A