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OPERATION AND MAINTENANCE

4-9

Operating Speed

Operating speed is very significant to the performance of 
the HSL. It requires some speed to make it work 
correctly.

1.

The minimum operating speed should be 
approximately 7-1/2 to 8 miles per hour unless the 
goal is to minimize the percent of crop residue being 
buried. 

2.

Maximum operating speed recommended is 
approximately 12 miles per hour. 

Operating speed is a function of the amount of crop 
residue that is buried. 

• The higher the speed of operation of the HSL the 

greater the percent of crop residue that will be buried. 

• The slower the speed of operation of the HSL the 

greater the percent of crop residue left that will be left 
on the surface.

When operating the HSL, high speed can be a substitute 
for operating deep. On the other hand, in some cases, it 
is desirable to reduce the percentage of crop residue 
buried. In such cases the operator will need to reduce the 
speed of operation. Typically the 8 to 10 miles per hour 
window of operating speed will yield the most desirable 
results. 

Operating Depths and 
Adjustments

The HSL has two depth control gauges. One directly in 
front of the front row of disc assemblies and one directly 
behind the rear row of disc assemblies 

(See Figure 4-6.)

 

• Both depth gauges are independently adjustable. 

• Both have their deepest setting correlate to the 

gauge cylinders being completely retracted but that is 
where the correlation stops.

• Typically the front gauges will need to be set slightly 

deeper than the rear because the front disc row is 
doing more work than the rear is.

IMPORTANT

Do not be concerned with the front and rear gauges 
being set differently for optimum operation!

The optimum working depth is considered to be 2 to 
3-1/2 inches. The HSL can work on either side of this 
range with good performance and results. Working depth 
adjustments should always be made in conjunction with 
considerations of operating speed. The HSL can bury as 
much plant debris in a relatively shallow working depth as 
conventional machines can at considerable deeper 
operating depths because of the mixing action inherent to 
the HSL if operating speed is not sacrificed. 

Figure 4-6: Operating Depths and Adjustments

DEPTH CONTROL TUBE
 

DEPTH CONTROL TUBE
 

DEPTH ADJUSTMENT HANDLE

DEPTH ADJUSTMENT HANDLE

Summary of Contents for 7831

Page 1: ...F 801 1115 11 2015 LANDOLL CORPORATION 1900 North Street Marysville Kansas 66508 785 562 5381 800 428 5655 WWW LANDOLL COM Model 7831 High Speed Landoll HSL Operator s Manual...

Page 2: ......

Page 3: ...3 3 Assembly Instructions Unloading the HSL and Final Assembly 3 2 Unfolding the HSL 3 3 Final Assembly 3 3 Wing Float Lockout Kit 3 3 4 Operation and Maintenance Product Description and Operation 4...

Page 4: ......

Page 5: ...your equipment before using it and describes adjustments needed Gives practical advice for the care and maintenance of your Landoll equipment Drawings in this section locate adjustment points on the...

Page 6: ...s to the implement be sure to clean the surface to remove any dirt or residue Where possible sign placement should protect the sign from abrasion damage or obstruction from mud dirt oil etc DANGER Tra...

Page 7: ...e the skin causing serious injury Use a piece of cardboard rather than hands to search for suspected leaks 2 Any fluid injected into the skin must be surgically removed within a few hours or gangrene...

Page 8: ...in to the tractor drawbar support or specified anchor location Allow only enough slack in the chain to permit turning The distance from hitch pin to attachment point or intermediate support point shou...

Page 9: ...35 35 12 9 42 Front 42 Rear 7 860 LBS 28 875 LBS 7831 40 40 12 9 48 Front 48 Rear 8 270 LBS 31 560 LBS Tire Inflation Tire Size Tire Manufacturer Ply Load Rating Inflation Pressure Psi Max 600 50R22...

Page 10: ...81 90 112 9 16 12 55 62 80 100 110 137 9 16 18 60 75 90 112 130 162 5 8 11 75 94 110 137 170 212 5 8 18 85 106 130 162 180 225 3 4 10 130 162 200 250 280 350 3 4 16 150 188 220 275 320 400 7 8 9 125 1...

Page 11: ...ated Parker Brand Fittings Dash Size 37 Degree JIC O Ring ORS O Ring Boss ORB 4 11 13 15 17 13 15 5 14 16 21 23 6 20 22 34 36 25 29 8 43 47 58 62 40 44 10 55 65 100 110 58 62 12 80 90 134 146 75 85 16...

Page 12: ...2 4 F 801 1115 Edition STANDARD SPECIFICATIONS Table provided for general use NOTES...

Page 13: ...n working on or near disc blades Do not allow discs to roll over or fall onto any bodily part Do not allow wrenches to slip when working near disc blades Never push wrenches toward disc blades Do not...

Page 14: ...hub and proceed by tightening the lug nut assemblies sequentially to 450 to 500 foot pounds Figure 3 1 Tire and Wheel Installation 8 AND 10 STUD HUBS Applles to M22 X 1 5 studs two piece flange nut A...

Page 15: ...Manual section on Rear Gauges to avoid assembling them incorrectly Some of the rear gauge rockshafts are the same apparent width but may be different in other ways relative to the final assembly 1 Onc...

Page 16: ...Rear Gauge Assembly Figure 3 3 Wing Float Lockout Kit ROCKSHAFT ROCKSHAFT BEARINGS HEX SCREWS 3 4 10 X 12 GR5 CYLINDER MOUNTING PLATE DEPTH STOP CONTROL PLATE DEPTH STOP TUBE 11 5 3 7 6 287 5 5 7 1 1...

Page 17: ...when equipment is idle Failure to take preventive measures against accidental lowering can result in serious personal injury Always lock the tractor drawbar in the center position when transporting t...

Page 18: ...row fractures soil to the left side of each of the front blades while the rear row fractures soil to the right side of each of the rear blades As a result each blade in each row is moving soil in the...

Page 19: ...OPERATION AND MAINTENANCE 4 3 W Figure 4 1 Rear Gauge Reels Rollers 635 1 5 9521 5 58 5 52 5 127 21 85 7 216 6 2 1 5 25 7...

Page 20: ...e out of the ground Folding the 7831 HSL WARNING 1 Tilt the center section and wing assemblies rearward until they are completely upright The center section is tilted upright by retracting the large t...

Page 21: ...he gauge cylinders It is a good practice to re synchronize the front gauge cylinders once or twice daily by extending them completely and holding the circuit control in the extend position for an addi...

Page 22: ...y 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 7831 HSL is most effective at speeds of eig...

Page 23: ...Gang Assemblies 1 of 2 Figure 4 4 Lateral Adjustment of Gang Assemblies 2 of 2 10 1 8 8 5 8 VERTICAL SHANK ADJUSTMENT COMPOUND ANGLE SHANK ADJUSTMENT TYPICAL ROW SPACING 10 10 3 8 10 3 8 10 3 8 10 3...

Page 24: ...blade leveler is a function of both speed and field conditions loose dirt present 1 It is best to initially adjust the blade to ride at ground level with the bottom edge parallel to the ground If it...

Page 25: ...Operating Depths and Adjustments The HSL has two depth control gauges One directly in front of the front row of disc assemblies and one directly behind the rear row of disc assemblies See Figure 4 6 B...

Page 26: ...der is not fully extended the main body of the HSL will not be free to rotate for to aft and follow the lay of the land Replacing The Disc Hub Bearing 1 Always replace the five lip seal 2 Always clean...

Page 27: ...quired please reference the parts manual 2 When lubricating the HSL SAE multi purpose EP grease or EP grease with 3 5 molybdenum sulfide is recommended Wipe soil from fittings before greasing Replace...

Page 28: ...ICATION TABLE ITEM DESCRIPTION NO OF LUBE POINTS INTERVAL Hours Unless Stated 1 Reel Bearings 1 each 10 2 Wing Wheel Hubs 1 each 50 3 Center Section Wheel Hubs Check and Re pack 250 500 4 Center Secti...

Page 29: ...in diameter especially during initial use or when returning to duty after have set for a period It is always a good idea to rotate the rubber rollers after making adjustments to assure an adequate cl...

Page 30: ...4 14 F 801 1115 Edition OPERATION AND MAINTENANCE Table provided for general use NOTES...

Page 31: ...NSIDER INSTALLING SCRAPERS DISC HUB BEARING FROZEN REPLACE THE BEARING AND HUB ASSEMBLY DEPTH GAUGE CYLINDERS FRONT AND OR REAR OUT OF SYNCHRONIZATION SYNCHRONIZE CYLINDERS BY HOLDING HYDRAUILC CIRCUI...

Page 32: ...E IF NECESSARY AIR IS TRAPPED IN THE GAUGE CYLINDERS REMOVE AIR FROM CYLINDERS BY HOLDING HYDRAUILC CIRCUIT IN EXTEND POSITION FOR 5 TO 10 SECONDS AFTER FULL EXTENSION UNEVEN OPERATING DEPTH WING FRAM...

Page 33: ...TINGS AGAINST SCHEMATICS MACHINE WILL NOT UNFOLD RAISE WING FRAMES OUT OF TRANSPORT SADDLES TRACTOR VALVE NOT WORKING TRY A DIFFERENT TRACTOR CIRCUIT KNOWN TO WORK LIMIT VALVE ON HITCH SAFETY CIRCUIT...

Page 34: ...5 4 F 801 1115 Edition TROUBLESHOOTING GUIDE Table provided for general use NOTES...

Page 35: ......

Page 36: ...odel 7831 High Speed Landoll HSL Operator s Manual Re Order Part Number F 801 1115 LANDOLL CORPORATION 1900 North Street Marysville Kansas 66508 785 562 5381 800 428 5655 WWW LANDOLL COM F 801 1115 11...

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