31
Flow Control knob 15.
The Position and Draft Control levers are used in conjunction to raise or lower the three-point
linkage (and implement) to the required height and adjust the working depth.
In order to operate the three-point linkage, the external hydraulics control lever must be kept
in neutral position.
WARNING:
!
1. Do not transport or attach implement when the hydraulic system is in Draft
Control. Use Position Control for these operations only.
2. Always lower the implement to the ground before stopping the engine.
Draft control operation
Move the Draft Control lever in the sector to find the point near the centre where the lift links neither
raise nor lower. This is the neutral point.
Lower the implement into work using the Draft Control lever. Push the lever forwards to increase the
draft loading. Pull rearwards to reduce the draft loading. In most circumstances the forwards
movement of the Draft Control lever will increase implement depth and rearwards movement will
reduce the depth.
Once set, the tractor hydraulic system will automatically adjust the implement depth to maintain an
even pull on the tractor and so reduce wheel slip to a minimum.
When lowering the implement into work, push the draft control lever down to the bottom of the
quadrant to ensure positive engagement of the implement in the ground, then immediately raise the
draft control lever until the required implement depth is achieved.
NOTE:
When operating in Draft Control, the Position Control lever should normally be at the
bottom of the sector gear. However, the Position Control lever may be used in conjunction
with Draft Control to limit the maximum depth of correction with achievement of more
even depth of cultivation in fields with widely varying soil conditions.
When grading and back-filling with light equipment, such as rear blade, it may be desirable to prevent
the blade from “diving”. This is accomplished by using the Position Control lever in conjunction with
the Draft Control
lever. See “Draft Control operation with Position Control” on this page.
Position control operation
Set the required implement height/depth using the Position Control lever. Pull the lever back to raise
the implement, push forward to lower. The implement height/depth is relative to the position of the
lever in the quadrant.
NOTE:
1. When operating in Position Control the Draft Control lever should be pushed down
to the bottom of the quadrant.
2
.
When transporting equipment on the three-point linkage use the Flow Control knob
to lock the position of raised implement. This will prevent accidental movement of
the control lever which could result the equipment to lower
Draft control operation with position control
Position Control may be used together with the draft control as follows:
Set the Position Control lever at the maximum desired implement depth. The hydraulic system will
not lower the implement below this depth. This will also prevent “diving” which may be encountered
with light equipment, such as a rear blade, when grading or back-filling.
Adjust the Draft Control lever for the maximum required draft load (pull).
