MacDon 974 Quick Card - Manual

Quick Reference Card for Flex Draper Headers
Form 147351 Rev. C (E26972) Page 1 of 4
Fig.3 Float Engaged
D
E
R
Fig.4 Float Arm Down Stop Setting
F
Fig.1 Wing Lock Pins –Wings Locked
A
(Supplement to set-up in Operators Manual. See Operators Manual for greater detail.)
1. Set–up adapter & header as per Operator’s Manual and install adapter into header with combine. Follow all
set-up directions.
NOTE: 1) When setting a machine it is advisable to
shake and/or rock the machine a few times
after each adjustment.
2) It is good practice to follow the below
instructions and then run the machine in
the field for a break in period and perform
the adjustments again.
2. Check Float Settings. (Lock up Gauge Wheels in Storage
Position When Setting Float and/or Cutting on the Ground).
NOTE: Positioning table angle and reel as follows will enable best floatation
results when operator moves reel fore and aft or table angle on the go.
• It is recommended to set float for most conditions with the center cylinder
set to dimension (C) shown in Fig. 2. Pin to pin length of 490mm (19.5”).
Some adapters (depending on combine) will use the front hole in adapter
but measurement will be the same.
• Move Reel to mid position #5 or 6 on gauge.
• Raise header 150mm (6”) off the ground.
• Lock wing pins on both wings (see Fig.1).
• Place adapter float lock in down position (float engaged see Fig.3) on
both sides of adapter.
• Inspect distance at (F) between float arm (G) and down stop (H).
On the ground cutting (F) = 13mm (1/2”). (Notch in down stop arm
is used for a visual reference to gauge correct float for this field
condition).
Off the ground cutting (F) = Float arm (G) touching down stop (H)
• To adjust distance (F) Loosen jam nut (D), tighten both bolts (E) equally
to increase dimension, loosen to decrease. Tighten jam nut (D) when
adjustment is complete
C
Fig. 2 Center Link Dimension