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Revision A
4.4.7
Maintaining Disc Blades
Each disc has two blades attached at opposite ends that are free to rotate horizontally on a specially designed
shoulder bolt.
1004001
A
Figure 4.63: Disc blades
Each blade (A) has two cutting edges and can be flipped over so
that the blade does not need replacing as often.
The blades are
NOT
repairable and must be replaced if severely
worn or damaged.
IMPORTANT:
Always use factory replacement parts.
NOTE:
Discs are equipped with 18° bevel-down blades; 11° bevel-down
blades are offered as a non-standard option. For more
information, refer to the header parts catalog.
Inspecting Disc Blades
The blades on the rotary disc header
’
s discs should be inspected daily and flipped or replaced as needed.
DANGER
To prevent injury or death from the unexpected start-up or fall of a raised machine, always stop the engine and remove
the key from the ignition before leaving the operator
’
s seat or making adjustments to the machine. If the rotary disc
header is raised, always close the lock-out valves, and place blocks under the header. Never work on or beneath an
unsupported header.
DANGER
Ensure that all bystanders have cleared the area.
WARNING
Disc blades have two sharp cutting edges that can cause serious injury. Exercise caution and wear gloves when working
with, or near, blades.
WARNING
Damaged or loose disc blades or blade attachment hardware can be ejected during machine operation and may cause
personal injury or machine damage.
IMPORTANT:
Damaged blades cut poorly and may damage the cutterbar. Replace damaged blades immediately.
