Operating The Header; Header Float - MacDon R85 Operator's Manual

6 Operating the Header

Your header will provide the best performance when it is properly adjusted to suit the crop and conditions.
Correct operation reduces crop loss and increases productivity. As well, proper adjustments and timely maintenance
will increase the length of service you receive from the machine.
The variables listed below and detailed on the following pages will affect the performance of the header. You will
quickly become familiar with adjusting the machine to give you the desired results. Most of the adjustments have
been set at the factory, but if desired, the settings can be changed to suit crop conditions.
Table 6.1 Header Adjustment Procedures
Header float
Roll tension
Roll timing
Forming shields
Header angle
Cutting height
Ground speed
Double windowrowing

6.1 Header Float

Header float springs are normally set so 95–105 lbf (426–471 N) is required to lift either end of the header just off
the ground.
In rough or stony conditions, it may be desirable to maintain a lighter setting to protect cutting components.
When float setting is light, it may be necessary to use a slower ground speed to avoid excessive bouncing resulting
in a ragged cut. Faster ground speeds may require additional ground pressure.
Set the float fine adjustment to mid-range with the windrower float adjustment system in the cab. Refer to your
windrower operator's manual.
169455
Variable
Roll gap
6.1 Header Float, page 71
6.2 Roll Gap, page 73
6.3 Roll Tension, page 76
6.4 Roll Timing, page 77
6.5 Forming Shields, page 79
6.6 Header Angle, page 83
6.7 Cutting Height, page 84
6.8 Ground Speed, page 86
6.9 Double Windrowing, page 87
71
Refer to
Revision F