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Caution, Danger – MacDon R80 Rotary Disc Pull-Type Windrower User Manual

Page 74

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MAINTENANCE/SERVICE

Form # 169053

72

Model Year - 2009

7.8.4 Cutter

Blades

7.8.4.1 Cutter

Blade

Types

a. 18 DEGREE BEVEL DOWN

b. 11 DEGREE BEVEL UP (Optional)

7.8.4.2 Inspection

CAUTION

Cutter blades have two cutting edges.

Exercise caution when working around the
blades. Blades are sharp and can cause
serious injury. Wear gloves when handling
blades.

CAUTION

Damaged blades may damage the cutterbar,
and result in poor cutting performance.

Replace damaged blades at earliest possible
opportunity.

DANGER

Stop engine and remove key from ignition
before leaving operator's seat for any
reason. A child or even a pet could engage
an idling machine.

a. Check daily that the cutter blades are securely

attached to the disc.

b. Check blades for cracks or wear beyond safe

operating limits, and distortion.

c. Replace blades immediately if any of these

problems occur.

IMPORTANT

Blades should be replaced in pairs,
otherwise the disc may be unbalanced
and damage the cutterbar.

IMPORTANT

The cutter blades have cutting edges on
both edges so that the blade can be
turned over and reused. The twist in each
blade determines if its cutting direction is
clockwise or counterclockwise.

BLADE WEAR

TO CENTERLINE

0.81 in

(20.6 mm)

ELONGATED

HOLE

Higher Lift for Certain Crop Conditions /

Better in Stony Soil

ROTATION DIRECTION

COUNTERCLOCKWISE DISC

CLOCKWISE DISC

ROTATION

ROTATION

General Purpose Cutting / Longer Life

ROTATION DIRECTION