46
Adjust the Draft Control Lever for the maximum
required draft load (pull).The hydraulic lift system will
now provide normal draft response within the range set
by the Position Control. This adjustment provides a
more uniform depth while maintaining an even pull in
widely varying soil conditions.
5.8.4 Flow Regulation and Hydraulic Lock Knob.
WARNING :
To avoid personal injury or death :
Fast lowering speed may cause damage or injury.
The lowering speed can be control by adjusting the
flow regulation and hydraulic lock knob.
1
Figure 51
1 . Flow Regulation and Hydraulic Lock Knob.
A. "Fast" B. "Slow", C. "Lock"
OPERATION
When the knob is fully tightened by rotating it in
clockwise direction to an extreme position, the lower
links can be locked in the raised position and will not
lower even if draft or position levers are lowered. While
transporting
attachments, this locking system should be used. The
rate of flow of oil is infinitely variable between the
extreme positions of the knob.
5.8.5 Transportation of the Implement
1. Always use position co ntrol lever during
transportation of the implement.
2. Draft control lever should be in fully down position
during transportation of implement .
3. Raise implement using position control lever.
4. Lock the transport lock.
5. Lower position control lever by approx 20-25 mm
from raised position.
5.9 Auxiliary Spool Valve
To facilitate the operation of remote Cylinders, Single
Spool, Double acting valve with two Selector knob is
Provided on the Tractor.
!
A
B
C
5.8.1 Draft Control Operation
Move the Draft Control Lever in the quadrant to find
the point near the center 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 forward to increase the draft
loading. Pull rearwards to reduce the draft loading. In
most circumstances, forward movement of the Draft
Control Lever will increase implement depth and
rearward movement will reduce the depth.
Once set, 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. When
the required implement working depth has been
established, set the adjustable stop adjacent to the
Draft Control Lever to locate the position for repeated
use. The Draft Control Lever may be eased sideways
to bypass the adjustable stop, if required.
5.8.2 Position Control Operation
Set the required implement height/depth using the
Position Control Lever.
Pull the Lever Back to raise the implement
height/depth using the Position Control Lever. Pull the
lever back to raise the implement, push forward to
lower. Implement height/depth is relative to the
position of the Lever in the quadrant.
When the required implement working height/depth
has been established, set the adjustable stop
adjacent to the Position Control Lever to locate the
position for repeated use. The Lever may be eased
sideways when it is required to by pass the adjustable
stop.
The adjustable stop is reversible after loosening the
central clamp screw so that it may also be used when
operating in Draft Control.
IMPORTANT : When transporting equipment on the
three-point linkage set the adjustable stop to maintain
the Position Control Lever in the raised position. This
will prevent accidental movement of the lever which
could result in attached equipment lowering and
becoming damaged or damaging the road surface.
5.8.3 Automatic depth and draft system (Blending)
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, while grading or backfilling.
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