Table of Contents
Advertisement
OPERATION AND MAINTENANCE
It is always desirable to start the HSL at a shallow depth
and then subsequently adjust it from that point. The
amount of plant residue buried is a function of machine
depth and speed. Operating the HSL at greater depths
will naturally bury more plant residue. However,
increasing the speed of the HSL will also bury more plant
residue. Therefore, if operating at greater depths comes
at the sacrifice of speed, it may not be the most desirable
choice to run deeper.
NOTE
The 7833 HSL is most effective at speeds of eight miles
per hour or greater. If field conditions permit, a speed of
nine or ten miles per hour is very desirable.
NOTE
If plugging occurs reduce the working depth until the
issue has been remedied. The HSL can produce a
"blacker" field in just a few inches of working depth, than
a convectional machine at approximately twice the depth.
Front to Rear Adjustment
for the Tilt Controlled HSL
Unlike the conventionally operated HSL, the tilt controlled
HSL has only one adjustment for the front to rear
adjustment, "tilt control". The tilt control is an adjustable
mechanical control that stops the extension of the tilt
cylinder (the large cylinder on the hitch) at the discretion
of the operator. The adjustment for the tilt control is on
the left hand side of the hitch assembly. The markings on
the adjustment tube call out the "rear gang" and has
arrows indicating which direction the rear gang will go
relative to the front gang. "A" is the deepest setting while
"G" is the shallowest setting. Typically start out in the
mid-range and then adjust the control from that point.
The front row disc units would cause the HSL to track to
the tractors right hand side if they were dominant. In the
same way the rear disc units would cause the HSL to
track to the tractors left hand side if they were dominant.
1. If the HSL is tracking to the left side of the tractor the
operator will need to raise the rear gang relative to
the front gang because the rear gang is dominating,
and the system is not in equilibrium. The rear gang is
raised by rotating the tilt control hand crank counter
clockwise. The tilt cylinder will need to be retracted a
bit to make this adjustment.
2. If the HSL is tracking to the right side of the tractor
the operator will need to lower the rear gang relative
to the front gang because the front gang is
dominating, and the system is not in equilibrium. The
rear gang is lowered by rotating the tilt control hand
crank clockwise.
4-6
TABLE OF CONTENTS
The tilt control has very high resolution. Each turn of the
adjustment crank will move the rear gang about 3/32 inch
(.092) more than it moves the front gang in a given
direction. Eleven (11) rounds will move the back gang
one (1) inch more in a given direction than it will the front
gang. Changing the depth of operation will not typically
require any adjustment of the tilt control. Changing the
amount of down pressure on the rear reels may require
adjusting the tilt control to regain true tracking.
It is always desirable to start the HSL at a shallow depth
and then subsequently adjust it from that point. The
amount of plant residue buried is a function of machine
depth and speed. Operating the HSL at greater depths
will naturally bury more plant residue. However,
increasing the speed of the HSL will also bury more plant
residue. Therefore, if operating at greater depths comes
at the sacrifice of speed, it may not be the most desirable
choice to run deeper.
NOTE
The 7833 HSL is most effective at speeds of eight miles
per hour or greater. If field conditions permit, a speed of
nine or ten miles per hour is very desirable.
NOTE
If plugging occurs reduce the working depth until the
issue has been remedied. The HSL can produce a
"blacker" field in just a few inches of working depth, than
a convectional machine at approximately twice the depth.
Lateral Adjustment of Rear
Gang Assemblies
The front row of disc blades are fixed in position laterally.
They are designed to only rotate in place around their
torsion mounts.
•
The rear row of blades are mounted on gangbar
weldments which can be adjusted laterally. The
gangbars are secured with 3/4-10 carriage bolts
extending through slotted brackets. The gang
assemblies can be adjusted to the right or left several
inches. The gang bar adjustment brackets, (Landoll
Part Numbers 187631 and 195279) are designed to
simplify adjusting the gangs laterally.
•
The HSL is initially set at the factory to a setting of 10
inches from the outside of the center section left side
plate to the outer edge of the left rear disc unit clamp.
See Figure 4-3
compound angled shank option, or the vertical shank
option. For the 17-7 hybrid option this setting
increases to 14 inches.
for product purchased with the
F-894-0919
Advertisement
Table of Contents
