MacDon R1 Series, Operator'S Manual

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84
Revision A
3.15 Operating the Rotary Disc Pull-Type
Operating the rotary disc pull-type properly results in less crop lost and increased productivity during harvest. This includes
making proper adjustments while operating the machine to suit various crops and harvest conditions. Regular maintenance
and operating the machine safely and properly increases the machine
’
s length of service.
The variables listed in Table 3.8, page 84 and detailed on the following pages will affect the performance of your rotary
disc pull-type. You will quickly become adept at adjusting your machine to produce the desired results. Although most of
the adjustments have been set at the factory, settings can be changed to suit your crop conditions.
Table 3.8 Rotary Disc Pull-Type Performance Variables
Variable Refer to
Rotary Disc Pull-Type float 3.15.1 Float, page 84
Rotary Disc Pull-Type angle 3.15.3 Adjusting Cutterbar Angle, page 90
Cutting height 3.15.2 Cutting Height, page 87
Ground speed 3.15.4 Ground Speed, page 91
Conditioning: roll type 3.16 Conditioning: Roll Type, page 97
Conditioning: finger type 3.17 Conditioning
–
Finger Type, page 107
3.15.1 Float
Float springs are normally set so a force of approximately 43
–
47 kg (95
–
105 lb.) is required to lift either end of the rotary
disc pull-type just off the ground when the hitch is centered.
In rough or stony conditions, it may be preferable to apply less force in order to protect the cutting components.
NOTE:
When the float setting is light, it may be necessary to reduce the ground speed to prevent excessive bouncing and leaving a
ragged cut.
Adjusting Float
The float setting (or lifting force) changes depending on the conditioner type and options. The setting must be the same at
both ends of the rotary disc pull-type.
WARNING
To avoid bodily injury or death from unexpected startup of the machine, always stop the engine and remove the key
from the ignition before leaving the operator
’
s seat for any reason.
NOTE:
Changes to the rotary disc pull-type operating position can affect the float settings. After adjusting the cutting height or the
cutterbar angle, check the float and adjust as necessary.
OPERATION