MacDon M1240, Operator'S Manual

Page: 194 / 488

OPERATION
2. Use the HEADER TILT switches (A) on the ground
speed lever (GSL) to set the center-link to the
mid-range position (
5.0 on the Harvest Performance
Tracker [HPT]).
3. If checking fl oat with a draper header attached, set the
reel to the normal operating position.
4. Using the HEADER DOWN switch (B), lower header
fully with lift cylinders fully retracted.
5. Turn engine off and remove the ignition key.
6. Grasp one end of the header and lift. The force to lift
should be as noted in the following table and should be
the same at both ends.
Figure 4.154: GSL
Header
Force Required to Lift Header at the Ends (Lift Cylinder Fully Retracted)
Draper 335–380 N (75–85 lbf) with stabilizer/transport wheels raised (if equipped)
Auger 335–380 N (75–85 lbf)
Rotary 426–471 N (95–105 lbf)
7. Restart the engine and adjust fl oat as required. Refer to Setting the Float, page 182 .
NOTE:
Increasing the fl oat value on the Harvest Performance Tracker (HPT) makes the header feel lighter.
Setting the Float
The fl oat can be set for windrowing with the cutterbar on the ground or with the cutterbar off the ground (normally
used with the draper header).
Cutterbar on Ground
The optimum fl oat setting lets the header follow the contour
of the terrain. Proceed as follows:
1. Set center-link to mid-range position 5.0 on the Harvest
Performance Tracker (HPT). Refer to 4.5.4 Adjusting
Header Angle, page 186 .
2. Lower header until cutterbar is on the ground.
NOTE:
To minimize scooping rocks when operating at
the
fl attest header angle, lower the header skid
shoes. Refer to your header operator’s manual.
Figure 4.155: Header Float (Cutterbar on
Ground)
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182
Revision A