SECTION 2 – OPERATION
2-26
DRAFT CONTROL (Optional)
When operating in draft control, the draft control
lever (2) in Figure 2-49, used to adjust sensitivity
to draft loads. Once the lever is positioned, the
hydraulic lift system will automatically adjust the
depth of the equipment to maintain an even load
on the tractor as soil conditions vary. The
hydraulic system senses draft changes through
changes in upper link compression. The
operation of the upper link draft sensing system is
described in the following paragraph.
Upper Link Compression Loads: As the
equipment is pulled through the soil, the draft
caused by changes in soil resistance cause the
draft to increase, the compression force on the
upper link will also increase. These changes in
upper link compression, signal the hydraulic
system through internal linkage, to raise the
equipment slightly to maintain uniform draft.
NOTE:
Remove lock pin (1) in Figure 2-50, for
draft control linkage to be operative.
WARNING
Make sure the area is clear of people before
lifting or lowering equipment.
Always lower the hydraulic lift and other
hydraulic equipment before stopping and
leaving the tractor.
Figure 2-49
2
Figure 2-50
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