I-11
35 Series 4WD, Model - 3535, 4035, 4535 and 5035 SM June’08
As the traction force is increased, draft cam (12)
will further move roller (11) thus incrementing
the movement as described above.
The distributor shaft (21) will move from neutral
position (N) to delivery position (C) causing the
arms to be lifted. When the traction force
diminishes, shaft (21) will return to the neutral
position or to the lowering position which will
mean an inverse movement of the leverage
systems to what is described above.
C. COMBINED FUNCTIONING OF POSITION
AND DRAFT CONTROL
To utilize the lifting device in this condition it
is necessary to observe the following instructions:
1. Move the position control lever (1) upwards
with respect to the backstop "E" until the
maximum working depth has been
attained.
2. Determine the desired minimum working
depth by operating the draft control lever
and raising it from its zero position so that
roller (11), acting on the draft cam (12),
will move the distributor shaft (21) into the
lifting position (C) and causing a further
upward movement of the lifting arms.
2. Due to the position previously established
by position control lever (1), flywheel (7),
roller (4) and position cam (6), the
distributor shaft (21) is prevented from
entering the lowering position (S) and
therefore the arms cannot sink even though
the traction force acting on the top link
point (20) will tend to diminish and putting
stress on the tension rod (18) in the
direction of arrow "negative".
3. This condition will not prevent the
rockshaft from operating with the draft
control when, in the presence of more
consistent soil, the traction force on the
top link (20) will tend to increase, exerting
pressure on the tension rod (18) in the
direction arrow "positive".
4. Consequently the combined operation of
position and draft control will limit
variations in height toward the ground, as
happens during the use of the draft
control, and at the same time ensuring the
maximum possible depth desirable.
Hydraulics
Positive
Stroke
+
Negative
Stroke
-
To Next Page
Loading...
Need help?
General
