OPERATION AND MAINTENANCE
4-5
Figure 4-2: Synchronizing and Leveling Front Gauge Points
Synchronizing Rear
Gauge/Finishing Feature
Cylinders
The rear gauge/finishing feature is operated with a
master and slave cylinder system. The rear
gauge/finishing feature will maintain a uniform
relationship to the center and wing sections by design
when the cylinders are synchronized. Conventionally
operated HSL machines use the rear reels as a depth
control while the machines with tilt control can use the
rear reels either for depth limitation or as a finishing
feature with the down pressure adaptable
.
1.
Synchronize the master and slave cylinders by fully
extending the cylinders in this circuit.(Black Coded
Circuit)
2.
Maintain the hydraulic controls in the extend mode for
an additional five (5) to ten (10) seconds.
IMPORTANT
It is highly recommended that the operator re-set the
hydraulic cylinders that control both the front and
rear depth gauges once or twice daily while
operating the HSL.
3.
Once the master slave system is re-set, return to the
original depth setting. To assure a consistent working
depth this practice should be carried out Once or
Twice daily.
Front to Rear Adjustment
for Conventionally
Operated HSL
The HSL is most effective when it runs or tracks straight
behind the tractor. Only when the HSL is consistently
tracking straight, can the correct lateral adjustment of the
rear gangs be determined.
(
and Figure 4-4)
for lateral adjustment of
the rear gangs.
• When the HSL is tracking straight, all the blades have
the correct angles of attack, relative to the soil.
• When the HSL is tracking straight, the relationship
between the front and rear blades remains consistent.
• Tracking straight behind the tractor and running level
are not one and the same for the HSL. It is not
uncommon to see the HSL go through the field with
the front of the frame slightly lower than the rear of the
frame. This is because the front blades do more work
in breaking up the soil. Therefore, the rotation of the
shanks on their torsion mounts in the front is slightly
more than those in the rear. The resulting scenario is
that the HSL may appear to run a little downhill.
The front disc units would have the HSL track to the
tractors right side if they were dominate. In the same way
the rear disc units would have the HSL track to the left
side of the tractor if they were dominate.
1.
If the HSL tracks to the
left side
of the tractor, the
operator should either raise the rear of the machine
slightly or lower the front.
2.
If the HSL is tracking to the
right side
of the tractor,
the operator should slightly lower the rear or raise the
front. Tracking straight is a prerequisite to fine tune
the lateral adjustment of the gang assemblies.
3-1/8”
3/4”
9-1/8”
