Related Manuals for Landoll 7430 Series
Summary of Contents for Landoll 7430 Series
- Page 1 MODEL 7430 VERTICAL HARROW OPERATOR’S MANUAL 1900 NORTH STREET MARYSVILLE, KANSAS 66508 (785) 562-5381 F-531-0809 08/09...
- Page 2 This exclusive remedy shall not be deemed to have failed of its essential purpose so long as Landoll Corporation is willing and able to repair or...
- Page 3 MODEL 7430 VERTICAL HARROW OPERATOR’S MANUAL PURCHASED FROM: DATE ADDRESS: PHONE NO.: SERIAL NO.:...
- Page 4 NOTES:...
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Page 5: Table Of Contents
Table of Contents SECTION DESCRIPTION PAGE NO. INTRODUCTION ........1-1 STANDARD SPECIFICATIONS. - Page 6 SAFETY PRECAUTIONS THIS IS THE SAFETY ALERT SYMBOL. IT IS USED TO ALERT YOU TO POTENTIAL INJURY HAZARDS. OBEY ALL SAFETY MESSAGES THAT FOLLOW THIS SYMBOL TO AVOID POSSIBLE INJURY OR DEATH. DANGER DANGER INDICATES AN IMMINENTLY HAZARDOUS SITUA- TION WHICH, IF NOT AVOIDED, WILL RESULT IN DEATH OR SERIOUS INJURY.
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Page 7: Introduction
INTRODUCTION The Landoll 7430 Vertical Harrow is a quality product designed to give years of trouble free perfor- mance. By following each section of this manual, your system will perform as designed for you and your op- eration. SECTION 1 gives basic instructions on the use of this manual. - Page 8 NOTES:...
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Page 9: Standard Specifications
STANDARD SPECIFICATIONS 7430-26 26'-3" 13'-7" 13'-7" 22" 44/46 10/10 12L x 15 2-1/4" 8 Bolt 18,920 Load Range 7430-33 33'-2" 17'-11" 13'-11" 22" 56/58 14/14 12L x 15 2-7/8" 8 Bolt 23,380 Load Range (Center Frame) 2-1/4" (Wings) Specifications are subject to change without prior notification. TIRE INFLATION CHART TIRE SIZE TIRE... - Page 10 LANDOLL CORPORATION GENERAL TORQUE SPECIFICATIONS (REV. 4/97) THIS CHART PROVIDES TIGHTENING TORQUES FOR GENERAL PURPOSE APPLICATIONS WHEN SPECIAL TORQUES ARE NOT SPECIFIED ON PROCESS OR DRAWING. ASSEMBLY TORQUES APPLY TO PLATED NUTS AND CAPSCREWS ASSEMBLED WITHOUT SUPPLEMENTAL LUBRICATION (AS RECEIVED CONDITION).
- Page 11 LANDOLL CORPORATION HYDRAULIC FITTING TORQUE SPECIFICATIONS JIC, ORS, & ORB (REV. 10/97) THIS CHART PROVIDES TIGHTENING TORQUES FOR HYDRAULIC FITTING APPLICATIONS WHEN SPECIAL TORQUES ARE NOT SPECIFIED ON PROCESS OR DRAWING. ASSEMBLY TORQUES APPLY TO PLATED CARBON STEEL AND STAINLESS STEEL FITTINGS ASSEMBLED WITHOUT SUPPLEMENTAL...
- Page 12 9” 102” 30-1/2” 26-3/4” 30-1/4” 7430-33 top p1 Figure 2-1 Wing Stabilizer and Light Bracket Placement (26' Model) (Left Half)
- Page 13 8” 130” 48-1/2” 36-1/2” 26-3/4” 30-1/4” 7430-33 top p2 Figure 2-2 Wing Stabilizer and Light Bracket Placement (26' Model) (Right Half)
- Page 14 13-1/4” 100-1/2” 34” (114”) 20” 7430-33 top p1 Figure 2-3 Wing Stabilizer and Light Bracket Placement (33' Model) (Left Half)
- Page 15 13-1/4” 132” 46” 20” (114”) 23-1/4” 23-1/4” 7430-33 top p2 Figure 2-4 Wing Stabilizer and Light Bracket Placement (33' Model) (Right Half)
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Page 17: Assembly Instructions
ASSEMBLY INSTRUCTIONS WARNING It is very important that your new 7430 Vertical Harrow be properly assembled, adjusted and lubri- cated before use. Illustrations to assist with the as- DO NOT ATTEMPT TO LIFT HEAVY sembly process are provided in Section 2, “Stan- PARTS (SUCH AS THE FRAME, DISC dard Specifications”. - Page 18 CENTER FRAME ASSEMBLY WING NUT 3/4-10 PREVAILING TORQUE HOSE HOLDER FLANGE CLAMP 3/8-16 HEX NUT 1/4-20 X 1 HEX HEAD CAP HOSE HOLDER SCREW BRACKET 3/8-16 X 3-1/2 1-1/8-7 HEX ALL THREAD LOCK NUT SCREW 10 AND 14 GA HITCH MACHINE BUSHINGS WELDMENT HITCH MOUNT...
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Page 19: 7430 Vertical Harrow Frame And Hitch Assembly
3-1 7430 VERTICAL HARROW FRAME AND HITCH ASSEMBLY IMPORTANT 3-1.2 Attach the hitch weldment to the front of the center frame using 1-1/8-7 x 7-1/2 hex READ ALL SAFETY PRECAUTIONS AT THE head cap screws, machine bushings, hitch FRONT OF THE SECTION BEFORE ATTEMPT- mounting plates, and hex lock nuts (See Fig- ING ANY OF THE FOLLOWING PROCEDURES. - Page 20 11-3/4” LEVELER LINK 8” LEVELER LINK 1” FLANGE BEARING 1N FLAT WASHER 5/16 X 2-1/2 SPRING 1-1/4N FLAT SLOTTED PIN WASHER LEVELER SCREW 1-1/4 X 7-7/8 ASSEMBLY LEVELER LEVELER L LINK 1-1/4 FLANGE 3/4-10 HEX LOCK 1 X 7-7/8 BEARING LEVELER PIN 3/4-10 X 3-1/2 HEAD CAP SCREW...
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Page 21: Leveler Assembly
3-2 LEVELER ASSEMBLY 3-2.1 Install a hardened steel wear bushing in 3-2.5 Install plastic wear 1" flange bearing into the top end and 1-1/4" flange bearing into the leveler L link (See Figure 3-2). bottom end of the 11-3/4” leveler links. Insert 3-2.2 Attach the leveler L link to the front the bushings on the flat side of the link. - Page 22 1/4 ZERK FITTING LEVELER TUBE 5/8-11 HEX LOCK NUT LEVELER CROSS 1-1/2 FLANGE LEVELER BEARING SCREW ASSEMBLY 1-1/2 FLAT WASHER 5/8-11 X 3-1/2 HEX HEAD CAP SCREW LEVELER HANDLE 5/16 X 2-1/2 SPRING SLOTTED PIN FLANGE BEARING 1N FLAT WASHER LEVELER CROSS BRACKET 3/4-10 HEX LOCK NUT...
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Page 23: Manual Leveler
3-3 MANUAL LEVELER 3-3.1 Using the manual leveler, screw the lev- 3-3.2 Install the manual leveler handle assem- eler tube onto the leveler screw assembly bly into the front end of the leveler tube and (See Figure 3-3). Initially leave approxi- fasten with two 5/8-11 x 3-1/2 hex head cap mately 3”... - Page 24 1/4 ZERK FITTING LEVELER TUBE LEVELER SPRING 3/8-16 HEX LOCK NUT LEVEL INDICATOR ROD 1/2-13 X 1-3/4 HEX HEAD CAP SCREW LEVEL INDICATOR GAUGE AND DECAL LEVELER CROSS 1/2-13 HEX LOCK NUT 3-1/2 X 6 LEVELER CYLINDER SCREW ASSEMBLY 1/2-13HEX 1-1/2-6 HEX NUT LOCK NUT 1/2-13 X 2...
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Page 25: Hydraulic Leveler (Option)
3-4 HYDRAULIC LEVELER (OPTION) 3-4.1 Thread a 1-1/2-6 hex nut onto the lev- 3-4.6 Insert a plastic wear flange bearing in each leveler cross bracket. Install the plastic eler screw assembly (See Figure 3-4). Ini- tially leave approximately 6-1/2” of threads wear flange bearing from the tube side of the visible between the 1-1/2-6 hex nut and the bracket. - Page 26 3/8-16 X 1-1/4 HEX HEAD CAP SCREW 5/8-11 HEX LOCK NUT 5/8-11 HEX NUT 5/8-11 X 3 HEX HEAD CAP SCREW 5/16-18 X 4 HEX HEAD CAP 3/8-16 HEX NUT SCREW CENTER LIFT DEPTH STOP PLATE DEPTH STOP DEPTH STOP SPACER MOUNT PLATE DEPTH STOP...
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Page 27: Hydraulic Depth Stop Tube Assembly
3-5 HYDRAULIC DEPTH STOP TUBE ASSEMBLY 3-5.1 Lay the depth stop tube assembly on 3-5.2 Insert 90 deg elbow fittings in the back top of the center frame. Insert a 5/8-11 x 3 and right side of the limit valve. hex head cap screw in the rear hole of the 3-5.3 Using 5/16-18 x 4 hex head cap screws... -
Page 28: Fold Cylinder Mount
5/8-11 HEX LOCATION ON LOCK NUT 26’ MODEL FOLD CYLINDER MOUNT 5/8 X 4 X 6-1/2 U-BOLT 26’ MODEL 5/8-11 HEX LOCK NUT LOCATION ON FOLD CYLINDER ’ MODEL MOUNT 5/8 X 4 X 7-3/4 U-BOLT 58-7/16 33’ MODEL fold cyl bracket Figure 3-6 Fold Cylinder Mount Installation 3-12... - Page 29 3-6 FOLD CYLINDER MOUNT 3-6.1 For 26’ models, assemble the fold cylin- 3-6.2 For 33’ models, assemble two fold cylin- der mount to the middle cross bar of the cen- der mounts to the center frame using 5/8 x ter frame (over the leveler spring assembly) 4 x 7-3/4 u-bolts and hex lock nuts.
- Page 30 NOTE: MOST RIGHT DISC GANG 3/4-10 X 2 HEX HEAD ASSEMBLIES NOT SHOWN FOR CAP SCREW CLARITY. LEFT REAR CENTER FRAME DISC GANG CONNECTION RIGHT REAR CENTER FRAME DISC GANG ASSEMBLY 3/4-10 HEX LOCK NUT LEFT REAR FRAME DISC GANG ASSEMBLY 1-1/2 FLANGE BEARING 1-1/2 THRUST WASHER...
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Page 31: Center Frame Tires
3-7 CENTER FRAME TIRES 3-7.2 On 26' models, use tire and wheel 3-7.1 Install the tire and wheel assemblies on assemby (p/n 142648). On 33' models, use the center section. tire and wheel assembly (p/n 144319). 3-8 DISC GANGS DANGER 3-8.1 Attach the disc gang assemblies to the center section using 3/4-10 x 2 grade 8 hex... - Page 32 WING LOCK 3/4-10 X 2 HEX HEAD CAP SCREW 1/4 X 3 ROLL RIGHT WING FRAME FRONT GAUGE WING WHEEL ASSEMBLY STABILIZER U-BOLT 1-8 X 6 HEX HEAD CAP SCREW WING STABILIZER BRACKET 3/16 HAIR PIN 5/8-11 HEX LOCK GAUGE WHEEL SPACER 1-8 HEX LOCK NUT WING LIFT WHEEL...
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Page 33: Wing Frames
3-9 WING FRAMES 3-9.1 Place the wing frames on top of the 3-9.4 Mount the wing stabilizer brackets to the wing gang assemblies and attach using wing frames using u-bolts and hex lock nuts. 3/4-10 x 2 hex head cap screws and hex See Figures 2-1 - 2-4 for placement lock nuts (See Figure 3-8). - Page 34 16 PORT MANIFOLD MANIFOLD BRACKET 3/4-10 X 2-1/2 HEX HEAD CAP SCREW GR8 SLAVE DECAL 1/2-13 X 3-1/2 SLAVE 3-3/4 X 10 HYDRAULIC 3/8 X 110 HEX HEAD CAP CYLINDER HOSE SCREW AND ASSEMBLY HEX LOCK NUT 3/8 X 150 HOSE ASSEMBLY MASTER DECAL 4 X 10...
- Page 35 5/16 X 2-1/2 SPRING SLOTTED PIN 1-1/4N FLAT WASHER FOLD PIN 90 ELBOW 4 X 30 HYDRAULIC RESTRICTOR CYLINDER 3/8 X HOSE ASSEMBLY 3/4-16 MALE 3/8 X 36 COUPLER HOSE ASSEMBLY 3/8 X 215 HOSE ASSEMBLY 1/2-13 X 3-1/2 HEX HEAD CAP SCREW 3/8 X 36 HOSE AND HEX LOCK NUT...
- Page 36 16 PORT MANIFOLD MANIFOLD BRACKET 3/4-10 X 2-1/2 SLAVE DECAL HEX HEAD CAP SCREW GR8 3-3/4 X 10 HYDRAULIC 3/8 X 136 CYLINDER SLAVE HOSE ASSEMBLY 3/8 X 190 HOSE MASTER DECAL ASSEMBLY 4 X 10 HYDRAULIC 1/2-13 X 3-1/2 CYLINDER HEX HEAD CAP SCREW AND HEX...
- Page 37 5/16 X 2-1/2 SPRING SLOTTED PIN 1-1/4N FLAT FRONT WASHER MACHINE PLUG PORTS S & T FOLD PIN 90 ELBOW W/ 1-1/4N 4 X 30 HYDRAULIC RESTRICTOR FLAT CYLINDER WASHER 3/8 X 75 HOSE 90 ELBOW W/ ASSEMBLY FOLD PIN RESTRICTOR 3/8 X 4 HOSE ADAPTER...
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Page 38: Hydraulic Installation
3/8-16 x 1-3/4 HEX HEAD CAP SCREW 3/8 FLAT WASHER HOSE CLAMP HOSE CLAMP BRACKET 3/8-16 HEX LOCK NUT SCRAPER BAR hose clamp assembly Figure 3-13 Hose Clamp Assembly 3-10 HYDRAULIC INSTALLATION Note: Refer to Figures 3-9 - 3-12 for lift and fold 3-10.6 Install 90 degree regular adapter fittings in the base end of the 4”... -
Page 39: Light Installation
RH BRACKET WELDMENT REAR WARNING MAIN WARNING LIGHT LIGHT HARNESS HARNESS 1/4-20 HEX WING STABILIZER LOCK NUT U-BOLT 1/2-13 HEX LH BRACKET LOCK NUT WELDMENT 1/2-13 X -1/2 YELLOW HEX HEAD CAP REFLECTOR SCREW AMBER SINGLE ENHANCED LAMP LIGHTING MODULE #8-32 X 1/2 PAN HEAD SLOTTED... -
Page 40: Chopper Reel Installation
1-8 X 6-1/2 HEX HEAD CAP SCREW 1-8 HEX 20-3/4” LOCK NUT NOTE: SIDE PLATE REMOVED FOR CLARITY 1-1/2 FLANGE BEARING 1-1/2 PIVOT BUSHING 5/16 X 1-1/2 SPRING SLOTTED PIN 1-8 HEX NUT PIVOT PIN 1-8 HEX LOCK NUT W/ NYLON MACHINERY BUSHING 3/8 X 4 SPRING... - Page 41 3-12 CHOPPER AND CONDITIONER REEL INSTALLATION 3-12.4 Attach reel arm/spring assembly to up- NOTE: CONDITIONER REEL NOT SHOWN, BUT per hole on rear center or wing frame or double chopper mount using 1-8 x 6-1/2 hex ATTACHES TO VERTICAL HARROW IN THE head cap screw, 1-1/2 flange bearing, 1-1/2 SAME MANNER AS CHOPPER REEL SHOWN.
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Page 42: Rear Jack Installation (Option)
3-13 REAR JACK INSTALLATION (OPTION) A rear jack assembly is available for use on 5/8-11 HEX LOCK NUT the rear of the Vertical Harrow. This is extremely helpful, if an attachment has been added to the REAR JACK MOUNT PLATE rear of the machine, for stability. -
Page 43: Final Assembly
3-14 FINAL ASSEMBLY 3-14.6 Check tires for proper inflation 3-14.1 Attach a tractor to the implement and 3-14.7 Level the disc from side to side as de- charge the lift system hydraulics as de- scribed in Section 4-8. scribed is Section 4-4. 3-14.8 Inspect the final implement assembly, 3-14.2... - Page 44 NOTES: 3-28...
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Page 45: Operation And Maintenance
OPERATION AND MAINTENANCE DANGER DANGER NEVER ALLOW ANYONE TO RIDE ON ALWAYS LOCK THE TRACTOR DRAW- THE 7430 VERTICAL HARROW AT ANY BAR IN THE CENTER POSITION WHEN TIME. ALLOWING A PERSON TO RIDE TRANSPORTING THE UNIT. FAILURE ON THE MACHINE CAN INFLICT SERI- TO DO SO CAN RESULT IN SERIOUS OUS PERSONAL INJURY OR DEATH INJURY OR DEATH AND CAUSE DAM-... -
Page 46: Tractor Preparation
4-1 TRACTOR PREPARATION The Landoll 7430 Vertical Harrow is designed 4-1.1 Inflate the rear tractor tires equally and to be pulled by tractor equipped with a double lip add ballast according to the tractor opera- or clevis type hitch. If your tractor is not equipped tor’s manual. -
Page 47: Attaching To The Tractor
4-3 ATTACHING TO THE TRACTOR 4-3.3 Clean all hydraulic couplings and attach 4-3.1 Align the tractor drawbar with the ma- to the tractor. chine. Raise or lower the disc ring hitch, as 4-3.4 Fully extend the hydraulic lift wheel cyl- needed, using the swivel jack. - Page 48 4-4.2 The hydraulic system is not filled with oil 4-4.3 Always fully extend the cylinders and and should be purged of air before transport- hold the lever to ensure the cylinders are ing and field operations. Carefully hitch the rephased before starting any field operation. Vertical Harrow to the tractor and connect This will keep all cylinders in time and frame the hydraulic lift hoses.
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Page 49: Hydraulic Fold System
4-5 HYDRAULIC FOLD SYSTEM 4-5.1 The Vertical Harrow is equipped with a 4-5.3 To charge the system, carefully hitch hydraulic fold system to raise and lower the the Vertical Harrow to the tractor. Unpin the wing frames for narrow transport. end(s) of the fold cylinders, and position 4-5.2 Be sure the system is fully charged with... - Page 50 4-5.5 To fold/unfold the Vertical Harrow, find a 3/16 HAIR PIN level area large enough to accommodate the Vertical Harrow when it is fully unfolded. The WING STABILIZER tractor should be stopped and not moving BRACKET with the unit fully raised. Remove the wing lock pins from the mounts and install them in the storage locations (See Figures 4-5 and 4-6).
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Page 51: General Operation
4-6 GENERAL OPERATION 4-6.3 Lift wheels must always be in contact 4-6.1 The horsepower requirements are typi- with the ground and carrying some imple- cally 8-10 horsepower per foot of cut. This ment weight. Lift wheels are used to gauge will vary widely due to speed, depth, mois- the depth of each frame section and to con- ture, residue and types of soils. -
Page 52: Leveling (Side To Side)
4-8 LEVELING (SIDE TO SIDE) 4-8.1 Leveling the Vertical Harrow side-to-side involves leveling the wing frame to the center frame. The unit should be level side-to-side when operating in the field. 4-8.2 To level the unit, verify that all tires are properly inflated, and that the center radius rod adjustment has been properly set. -
Page 53: Leveling (Front-To-Rear)
4-9 LEVELING (FRONT-TO-REAR) 4-9.1 The leveling feature on the Vertical Har- 4-9.3 On machines with manual leveler ad- row is used to keep the machine level when justment, turn the leveler handle in or out to raising the unit from a working position to a adjust the front-to-rear level (See Figure transport position. -
Page 54: Hydraulic Leveler Gauge Adjustment
6-1/2” THREADS LEVELER SCREW ASSEMBLY 4 X 30 FOLD CYLINDER 1-1/2-6 HEX LOCK NUT LEVELER TUBE LEVEL INDICATOR GAUGE LEVEL INDICATOR ROD 7430hydlevel 1 Figure 4-11 Hydraulic Leveler Gauge Adjustment 4-10 HYDRAULIC LEVELER GAUGE ADJUSTMENT 4-10.3 Loosen the 1-1/2-6 hex lock nut at the If a unit is equipped with an optional hydraulic rear of the leveler tube (an adjustment leveler, and the unit is level in the field, but the ref-... -
Page 55: Hitch Adjustment
4-11 HITCH ADJUSTMENT 4-11.1 It is important for the Vertical Harrow to LEVELER BALL maintain a proper draft line with the tractor to JOINT LINK do a level job of discing. The draft line will vary depending on soil conditions and tractor 1-8 X 4 HEX drawbar height. -
Page 56: Scraper Adjustment
4-12 SCRAPER ADJUSTMENT The Vertical Harrow is equipped with rigid 4-12.1 Rigid scrapers should be set initially as scrapers at regular spools with dual scrapers at the close to the disc blade as possible without disc bearings. rubbing (approximately 1/8") (See Figure 4-13). -
Page 57: Harrows
4-13 HARROWS 4-13.1 Refer to harrow manuals for operation and maintenance instructions. 4-14 FRONT GAUGE WHEELS IMPORTANT 4-14.1 The Vertical Harrow is equipped with castering gauge wheels at the outer front EXCESSIVE DOWN PRESSURE CAN CAUSE corners of each wing. These gauge wheels THE IMPLEMENT TO THROW A CENTER are used to limit depth of the wings, and pre- RIDGE. -
Page 58: Disc Blades
4-15 DISC BLADES DANGER 4-15.1 The 7430 Vertical Harrow is equipped with 22" -6 ga. (.197") low concavity disc DISC BLADES ARE EXTREMELY blades on both front and rear. The use of SHARP. EXERCISE EXTREME CARE other concavity blades can give unpredict- WHEN WORKING ON OR NEAR DISC able results and is not recommended. -
Page 59: Depth Stop Adjustment (Manual)
4-16 DEPTH STOP ADJUSTMENT (MANUAL) The operating depth of the Vertical Harrow is controlled by a single-point depth stop. The stop is DEPTH STOP TUBE located at the center front of the machine. 4-16.1 Adjust the depth stop by turning the DEPTH STOP GAUGE handle in (clockwise) to increase operating depth (See Figure 4-15). -
Page 60: Wheel Bearing Maintenance
4-17 WHEEL BEARING MAINTENANCE 4-17.7 Slide the inner bearing cone and hub Wheel bearing maintenance should be per- onto the spindle. formed at the beginning of every season of use. 4-17.8 Install the outer bearing cone, washer Check the wheel bearings periodically for exces- and slotted nut. -
Page 61: Transport
4-19 TRANSPORT 4-19.1 Check and follow all federal, state, and 4-19.6 A safety chain is provided with the im- local requirements before transporting the plement to insure safe transport. Vertical Harrow. a. The safety chain should have a tensile 4-19.2 The 7430 should be transported only by strength equal to or greater than the gross tractor required for field operation. - Page 62 4-19.7 Check that tires are of proper size, load 4-19.11 Transport during daylight hours when- rating, and inflated to manufacture specifica- ever possible. Always use flashing warning tions before transporting. Check wheel lug lights, except where such use is prohibited bolts to insure tightness.
- Page 63 7430 lube Figure 4-18 Lubrication Schedule LUBRICATION TABLE ITEM DESCRIPTION NO. OF LUBE POINTS INTERVAL (Hours unless stated) Disc Gang Bearings 1 each Radius Rod Walking Tandem Hubs 1 each Wheel Hubs 1 each Front Gauge 6 Bolt Wheel Hubs 1 each Manual Leveler Tube Hydraulic Leveler Tube (Optional)
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Page 64: Lubrication Maintenance
4-20 LUBRICATION MAINTENANCE 4-20.3 Disc gang and chopper reel bearings 4-20.1 Table 4-3 specifies the number and the are equipped with triple-lip seals that will let period of lubrication points on the 7430 Verti- grease pass and not harm the seal. Regular cal Harrow. - Page 65 NOTES 4-21...
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Page 67: Troubleshooting Guide
TROUBLESHOOTING GUIDE The Troubleshooting Guide, shown below, is included to help you quickly locate problems that can hap- pen using your 7430 Vertical Harrow. Follow all safety precautions stated in the previous when making any adjustments to your machine. PROBLEM PROBABLE CAUSE:SOLUTION UNIT NOT LEVEL, LEAVING CENTER RIDGE Leveler not adjusted properly: adjust leveler, lower... - Page 68 UNIT SIDE DRAFTS OR MOVES SIDE TO SIDE Lift wheels not carrying enough weight: adjust depth stop and raise implement. Unit not level front to rear: adjust unit to be level. Level unit side to side: level center frame and wing frame to center frame side to side.
- Page 69 DISC GANG BEARING SNAP RING Gang bearings installed incorrectly: install POPS OUT bearings with snap ring away from concave side of disc blade. SCRAPERS BUILD UP WITH EXCESSIVE Scrapers set too far from disc blade: readjust SOIL/RESIDUE scrapers. DISC BLADES LOOSE AND/OR SHEARING Gang not tightened properly: retighten gang shafts ROLL PIN to 1250-1500 ft-lbs.
- Page 70 NOTES:...