MacDon FD70 for Combine Operators User Manual

Page 217

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SECTION 10. MAINTENANCE AND SERVICING

Form 169006

215

Revision D

h. Place torque wrench (H) (from adapter frame) on

bolt (J).

i. Move each wing up and down with the wrench

(H) to determine tendency of wing to ‘smile’ or
‘frown’.

j.

Balance is set when the supplied torque wrench
measures the same setting with the bellcrank
(wing) up or down, or the wing tends to align itself
with the center cutterbar.

k. If wing tends to ‘smile’ (stay up), loosen clamp-

bolt (K), and turn draw-bolt (L) counter clockwise
to move clevis (M) inboard to reduce the ‘smile’.

l. If wing tends to ‘frown’ (stay down), loosen

clamp-bolt (K), and turn draw-bolt (L) clockwise to
move clevis (M) outboard to reduce the ‘frown’.

m. Tighten clamp bolt (K)

n. Move spring handle (A) to upper position to

LOCK the wing float.

NOTE

If the cutterbar is not straight when
wings are in lock mode, then further
adjustments are required. Refer to
Section 10.15.1 Wing Float Lock
Adjustment.

NOTE

Decals (N) and (O) are located on the
center-link for each wing to indicate
adjustments. Refer to illustration below
for details.

o. Replace linkage cover and wrench.

IMPORTANT

Adjustment to the main float may be required
to maintain good wing balance when
operating in the field. See Section 9.11.3.4
Adjusting Header Float: On Ground.

L

M

K

REDUCE FROWN/

INCREASE SMILE

INCREASE FROWN/

REDUCE SMILE

Wing Tends To ‘Smile’

(Stay Up)

Move clevis (K) inboard

to ‘frown’ the wing.

Wing Tends To ‘Frown’

(Stay Down)

Move clevis (K) outboard

to ‘smile’ the wing.

LEFT WING

N

RIGHT WING

O

Wing Tends To ‘Frown’

(Stay Down)

Move clevis (K) outboard

to ‘smile’ the wing.

Wing Tends To ‘Smile’

(Stay Up)

Move clevis (K) inboard

to ‘frown’ the wing.

A

J

H

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