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Landoll VT Plus 7550 Operator's Manual

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Model 7550
Adjustable VT Plus
Operator's Manual
LANDOLL CORPORATION
1900 North Street
Marysville, Kansas 66508
(785) 562-5381
800-428-5655 ~ WWW.LANDOLL.COM
F-987-0519
05/2019-Present

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Summary of Contents for Landoll VT Plus 7550

  • Page 1 Model 7550 Adjustable VT Plus Operator’s Manual LANDOLL CORPORATION 1900 North Street Marysville, Kansas 66508 (785) 562-5381 800-428-5655 ~ WWW.LANDOLL.COM F-987-0519 05/2019-Present...
  • Page 2 Manuals for the 7550 VT Plus MANUAL NUMBER MANUAL NAME F-987 7550 VT Plus Operator’s Manual F-988 7550 VT Plus Parts Manual...

  • Page 3: Table Of Contents

    Table of Contents Introduction Understanding Safety Statements ..........1-2 Decal Safety .
  • Page 4 Center Frame ............4-18 Wing Frame .

  • Page 5: Introduction

    Chapter 1 Introduction The Landoll Model 7550 VT is a quality product designed to give years of trouble free performance. By following each section of this manual, your system will perform as designed for you and your operation. CHAPTER 1 Gives basic instructions on the use of this manual and understanding the safety statements.

  • Page 6: Understanding Safety Statements

    INTRODUCTION Understanding Safety Decal Safety Statements 1. Examine safety decals and be sure you have the correct safety decals for the implement. You will find various types of safety information on the 2. Keep these signs clean so they can be observed following pages and on the machine signs (decals) readily.

  • Page 7: Attaching, Detaching, And Storage

    INTRODUCTION Protective Equipment 4. Do not transport at speeds over 20 MPH under good conditions. Never travel at a speed which does not 1. Wear protective clothing and equipment. allow adequate control of steering and stopping. Reduce speed if towed load is not equipped with 2.

  • Page 8: Safety Chain

    INTRODUCTION Safety Chain 3. Attach the chain to the tractor draw-bar support or specified anchor location. Allow only enough slack in 1. Use a chain with a strength rating equal to or greater the chain to permit turning. The distance from hitch than the gross weight of towed machinery, which is pin to attachment point or intermediate support point 10,100 pounds minimum in accordance with ASAE...

  • Page 9: Standard Specifications

    Chapter 2 Standard Specifications Model Specifications 7550 VT Rear Wheel Model Transport Transport Blade No. of No. of Spindle Estimated Gang cut Bolt Number Width Height Diameter Blades Bearings Size Weight at 10 ° Pattern 4”-CF 18/18 7550-40 40’- 2” 18’...

  • Page 10: General Torque Specifications (Rev. 4/97)

    STANDARD SPECIFICATIONS General Torque Specifications (rev. 4/97) TORQUE SPECIFIED IN FOOT POUNDS - 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 cap-screws assembled without supplemental lubrication (as received condition).

  • Page 11: Hydraulic Fitting Torque Specifications

    STANDARD SPECIFICATIONS Hydraulic Fitting Torque Specifications TORQUE IS SPECIFIED IN FOOT POUNDS- 37 JIC, ORS, & ORB (REV. 10/97) 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 12 STANDARD SPECIFICATIONS 26-7/8” COND-REEL/GANGBAR ASSEMBLY 156” 20-5/8” COND-REEL/GANGBAR ASSEMBLY 91” 18-5/8” COND-REEL/GANGBAR ASSEMBLY 82” Figure 2-3: Conditioner Reel Placement 40’ (LH) F-987-0519...
  • Page 13 STANDARD SPECIFICATIONS 26-7/8” COND-REEL/GANGBAR ASSEMBLY 156” 20-5/8” COND-REEL/GANGBAR ASSEMBLY 91” 18-5/8” COND-REEL/GANGBAR ASSEMBLY 82” Figure 2-4: Conditioner Reel Placement 40’ (RH)
  • Page 14 STANDARD SPECIFICATIONS 26-7/8” COND-REEL/GANGBAR 22-5/8” ASSEMBLY 156” COND-REEL/GANGBAR 23-5/8” ASSEMBLY 105” COND-REEL/GANGBAR ASSEMBLY 97” Figure 2-5: Conditioner Reel Placement 45’ (LH) F-987-0519...
  • Page 15 STANDARD SPECIFICATIONS 26-7/8” COND-REEL/GANGBAR 22-5/8” ASSEMBLY 156” COND-REEL/GANGBAR 23-5/8” ASSEMBLY 105” COND-REEL/GANGBAR ASSEMBLY 97” Figure 2-6: Conditioner Reel Placement 45’ (RH)
  • Page 16 STANDARD SPECIFICATIONS Table provided for general use. NOTES: F-987-0519...

  • Page 17: Assembly Instructions

    Chapter 3 Assembly Instructions It is very important that your new 7550 VT Plus be  DANGER properly assembled, adjusted and lubricated before use. Illustrations to assist with the assembly process are Disc blades are extremely sharp. Exercise provided in Section 2, “Standard Specifications”. They extreme care when working on or near disc show proper disc gang, wing stabilizer bracket, and light blades.

  • Page 18: 7550 Vt Plus Frame And Hitch Assembly

    ASSEMBLY INSTRUCTIONS 7550 VT Plus Frame and Hitch NOTE Assembly The hitch may be assembled in the upper or lower position depending on matching tractor drawbar height. IMPORTANT “Hitch Adjustment” on page 4-13 for proper adjustment. Read all safety precautions at the front of the section before attempting any of the following procedures.
  • Page 19 ASSEMBLY INSTRUCTIONS 3/4-10 X 2-1/2 HEX SCREW & LOCK NUT FRAME MOUNT RADIUS ROD REAR ASSEMBLY REAR 8 PORT MANIFOLD FRAME ASSEMBLY MOUNT 1/2-13 X 3-1/2 REAR HEX SCREW CENTER & LOCK NUT 1-8 X 4 HEX SCREW STEEL CENTER FRAME &...
  • Page 20 ASSEMBLY INSTRUCTIONS 1/4-20 X 1 WING NUT HEX SCREW HOSE HOLDER HOSE HOLDER CLAMP BRACKET 3/4-10 FLANGE 3/8-16 HEX STORE-AWAY HARNESS 3/8-16 X 5 FULL THREAD HEX SCREW 1/4-20 HEX LOCK NUT 3/4-10 X 10-1/2 HEX SCREW DETAIL A 1/2-13 X 11 HEX SCREW 1-1/2 LOCK HOSE HOLDER...
  • Page 21 ASSEMBLY INSTRUCTIONS Table provided for general use. NOTES:...

  • Page 22: Leveler Assembly

    ASSEMBLY INSTRUCTIONS Leveler Assembly NOTE When the hitch is in the upper mounting position, the NOTE leveler link is mounted in the lower holes. When the hitch Be sure the two bushings are in the plates on the front of is in the lower position, the link is mounted in the top the center frame and the four 1-1/2 flange bearings are in mounting holes.
  • Page 23 ASSEMBLY INSTRUCTIONS NOTE: SLOT IN 1/2 X 2-1/4 GROOVED 33” LEVELER TOWER 1-8 HEX ALLOY PIN LOCK NUT NOTE: ALIGN ALL ALLOY PINS WITH 33” LEVELER SLOTS IN 33” LEVELER TOWER TOWER BEFORE TIGHTENING 1-8 HEX LOCK NUTS 3/16 X 1 SLOTTED SPRING PIN 1-1/2 X 6-1/2 LEVEL INDICATOR...
  • Page 24 ASSEMBLY INSTRUCTIONS Center Disc Gangs 4. The front gangs have a distance of 26” from center to center of the gangbar pivot shafts sticking up, move There are several ways to install the gangs on the 7550. gangs to where this is close and the gangs are close It is recommend to install the front gangs first to keep the to the front of the machine as shown in (See...
  • Page 25 ASSEMBLY INSTRUCTIONS GANG ADJ. PIN, 1/2 X 2-1/4 33” REAR SLOTTED PIN GANGS & 1-8 HEX WLDMT LINK 5 X 8 REPHASE LOCK NUT CYLINDER BRG. HALF 4-1/2 INSERT MOUNT WLDMT BRG. INSERT REAR GANGS 4-1/2 INSERT 3/4-10 X 10 HEX 3/4-10 X 14 HEX SCREW &...
  • Page 26 ASSEMBLY INSTRUCTIONS 3/8 X 3 CLEVIS 1-3/4-5 SLOTTED 1/8 HAIRPIN BLUE WASHER W/1-13/16 HOLE GANG BAR SLIDE 3/8 X 3 CLEVIS STAINLESS 1/8 HAIRPIN STEEL WASHER RCR DISC GANG ASSEMBLY GANG PIVOT RCF DISC GANG ASSEMBLY 1-13/16” THRUST WASHER 3” THRUST WASHER LCR DISC GANG ASSEMBLY...
  • Page 27 ASSEMBLY INSTRUCTIONS Table provided for general use. NOTES: 3-11...
  • Page 28 ASSEMBLY INSTRUCTIONS Fold Assembly Center 2. Secure the base end of the 4-1/2 x 30 cylinders with 1-1/4 x 7 pin, 1-1/4 flat washers and 5/16 x 2-1/2 The center fold should be installed after the gang pins. assemblies are attached. 3.
  • Page 29 ASSEMBLY INSTRUCTIONS WING STABILIZER OUTER WING REAR WING STOP PLATES 4-1/2 X 30 CYLINDER DOUBLER PLATE WING STABILIZER FRONT 3/4-10 X 6 1-1/4 X 7 PIN, HEX SCREW 1/1/4 FLAT WASHER & LOCK NUT & 5/16 X 2-1/2 PIN FOLD-STAB FOLD-STAB PLATE REAR PLATE FRONT...

  • Page 30: Wing Frame Inner

    ASSEMBLY INSTRUCTIONS Wing Frame Inner 4. Attach the tire/wheel assembly to all 8 bolt hub & spindle assemblies with 5/8 wheel nut. Torque to 85 1. Place the left and right inner wing frame assemblies to 100 ft./lbs. on stands so the wings are level with the center frame (See Figure 3-7.).
  • Page 31 ASSEMBLY INSTRUCTIONS INNER WING RT 1-3/4 HINGE 1-3/4 THRUST WASHER 1-3/4 FLANGE BEARING 5/8 X 3 ROUND PIN 3/8 X 2-1/2 SLOTTED PIN 1-3/4 THRUST WASHER 1-3/4 THRUST WASHER INNER WING LT 1-3/4-5 HEX SLOTTED NUT 8 BOLT HUB 1-3/4 HINGE &...

  • Page 32: Wing Frame Outer

    ASSEMBLY INSTRUCTIONS Wing Frame Outer 6. Install the 1-3/4 pin, w/snap ring, gang shaft washer through slot and outer hole of outer wing hinge. 1. Place the lt and rt outer wing frame assemblies on Secure with two 1-3/4” snap rings. stands so the wings are level with the inner wing 7.
  • Page 33 ASSEMBLY INSTRUCTIONS 1/2 X 2-1/4 GROOVED PIN 1-3/4 HINGE 1-3/4 THRUST WASHER ON REAR SIDE 1-1/4-7 LOCK NUT 1-3/4 THRUST WASHER ON FRONT SIDE FOLD LINK DOUBLE HINGE WELDMENT OUTER WING LT & RT LOCK NUT WING FOLD 8 BOLT HUB SPACER &...

  • Page 34: Disc Blades Are Extremely Sharp. Exercise

    ASSEMBLY INSTRUCTIONS Gang Assembly Wing Assemblies 2. Align the slide plates on the outer part of the wing up to the gang bar and install the 3/4-10 x 10 bolts into Like the center frame gangs, install the front gangs the slide plates and through the angle iron on the first to keep the front end from coming up gang bar.
  • Page 35 ASSEMBLY INSTRUCTIONS 3/4-10 X 10/ GANG PIVOT 3/4-10 X 11 3/8 X 3 CLEVIS HEX SCREW KEEPER 1/8 HAIRPIN PLATE 3/4-10 X 10 1-13/16” HEX SCREW THRUST WASHER 3/4 FLAT WASHER 3” THRUST WASHER 3/4-10 HEX LOCK NUT NOTE: 3/4-10 X 11 HEX SCREW FRONT &...
  • Page 36 ASSEMBLY INSTRUCTIONS 3/8 X 3 CLEVIS GANG PIVOT 1/8 HAIRPIN 3/4-10 X 10 1-13/16” HEX SCREW THRUST WASHER 3” THRUST WASHER 3/4-10 HEX LOCK NUT 3/4-10 X 10 HEX SCREW LOWR DISC GANG ASSEMBLY 3/4 FLAT WASHER 1/4 ZERK GANG PIVOT LOWF DISC GANG ASSEMBLY 1/4 ZERK...
  • Page 37 ASSEMBLY INSTRUCTIONS 5/8-11 X 3 HEX SCREW & LOCK NUT GAUGE BACK 5/8-11 X 2 HEX PLATE SCREW & LOCK NUT WHITE REFLECTIVE TAPE 5/8 FLAT WASHER GAUGE LINK GAUGE CLAMP BUSHING 1 X 5/8 BUSHING GAUGE ARM 1/4-20 X 5/8 HEX PLATE SCREW &...

  • Page 38: Fold Assembly Wing

    ASSEMBLY INSTRUCTIONS Fold Assembly Wing 2. Attach the wing stabilizer mount rear plates to the wing stabilizer spacer 6”. 6 x 3 x 3-1/2 rubber The wing fold should be installed after the wing frame bumper, wing rest mount, 1/2-12 x 3-1/2 hex screws, assemblies are attached to center frame, and gang 1/2 flat washers, 1/2-13 lock nuts with one 1-8 x 8-1/2 assemblies are attached to wing frames.
  • Page 39 ASSEMBLY INSTRUCTIONS WING STABILIZER MOUNT FRONT LOCK MOUNT 3/8 X 1-1/2 LOCK PIN 1-8 X 8-1/2 HEX WING LOCK SCREW, & LOCK NUT 6 X 3 X 3-1/2 RUBBER BUMPER DETAIL A 1/2-13 X 7-1/2 & WING REST MOUNT HEX SCREW 1-8 X 8-1/2 HEX &...

  • Page 40: Hydraulic Installation

    ASSEMBLY INSTRUCTIONS The disc gang angle cylinders use the following Hydraulic Installation fittings: The left master base end on the center 1. Install the hydraulic manifolds at the center and rear frame requires a tee fitting and the rest of the ports of the center frame to the mounts welded to the on the center frame cylinders are regular 90 degree frames using ½...
  • Page 41 ASSEMBLY INSTRUCTIONS 7. Install hose mounts on front of center frame outside 12. Attach hoses to tractor or other hydraulic source tubes using 5/8 diameter u-bolts and purge each system of air and fill cylinders with (See Figure 3-15.) and nuts. Hose mount will require 3 hose clamps hydraulic oil.
  • Page 42 ASSEMBLY INSTRUCTIONS 3-3/4 X 16 HYDRAULIC CYLINDER 4 X 16 HYDRAULIC 3/8” X 24” HOSE CYLINDER ASSEMBLY 4-1/2 X 16 HYDRAULIC 4-1/2 X 16 CYLINDER 3/8” X 24” HOSE HYDRAULIC ASSEMBLY CYLINDER 4 X 16 HYDRAULIC DETAIL B CYLINDER 3/8” X 78” HOSE 3-3/4 X 16 DETAIL A ASSEMBLY...
  • Page 43 ASSEMBLY INSTRUCTIONS 3-3/4 X 16 HYDRAULIC CYLINDER 4 X 16 HYDRAULIC 3/8” X 24” HOSE CYLINDER ASSEMBLY 4-1/2 X 16 HYDRAULIC 4-1/2 X 16 CYLINDER 3/8” X 24” HOSE HYDRAULIC ASSEMBLY CYLINDER 4 X 16 HYDRAULIC DETAIL B CYLINDER 3/8” X 90” HOSE 3-3/4 X 16 DETAIL A ASSEMBLY...
  • Page 44 ASSEMBLY INSTRUCTIONS NOTE: ROUTE HOSES THROUGH ALL HOSE LOOPS AND CLAMPS NOTE: ROUTE HOSES UNDER LIMIT VALVE BRACKET NOTE: ROUTE HOSES UNDER FRONT TUBE OF CENTER FRAME NOTE: ROUTE HOSES THROUGH ALL HOSE LOOPS AND CLAMPS Figure 3-18: Lift Hydraulic Layout 7550-40’-45’ LH 3-28 F-987-0519...
  • Page 45 ASSEMBLY INSTRUCTIONS NOTE: ROUTE HOSES THROUGH ALL HOSE LOOPS AND CLAMPS Figure 3-19: Lift Hydraulic Layout 7550-40’-45’ RH 3-29...
  • Page 46 ASSEMBLY INSTRUCTIONS 90° 1/16 RES ELBOW (NOTE: ROD END OF FOLD CYLINDERS ONLY) 4 X 30 HYDRAULIC CYLINDER 4-1/2 X 30 HYDRAULIC CYLINDER 90° #8 O-RING-TUBE 3/8” X 128” HOSE ADAPTER ASSEMBLY 90° #8 FLR REMOVE ORIGINAL SWV #8JIC FITTING AND INSTALL ADAPTER EX LG ELBOW 3/8”...
  • Page 47 ASSEMBLY INSTRUCTIONS 90° #8 FLR 90° #8 O-RING-TUBE PLUG SWV #8JIC ADAPTER ADAPTER #8 ORING TO TEE #8 #8 TUBE O-RING-TUBE ADAPTER ADAPTER 8M ORING X 8F JIC #8 ORING TO SW ADAPTER #8 TUBE ADAPTER RELIEF PILOT DETAIL B VALVE 8 PORT FRONT OF...
  • Page 48 ASSEMBLY INSTRUCTIONS 90° 1/16 RES ELBOW (NOTE: ROD END OF FOLD CYLINDERS ONLY) 4 X 30 HYDRAULIC CYLINDER 4-1/2 X 30 HYDRAULIC CYLINDER 90° #8 O-RING-TUBE 3/8” X 128” ADAPTER HOSE 90° #8 FLR REMOVE ORIGINAL SWV #8JIC FITTING AND INSTALL ADAPTER EX LG ELBOW 3/8”...
  • Page 49 ASSEMBLY INSTRUCTIONS 90° #8 FLR 90° #8 O-RING-TUBE PLUG SWV #8JIC ADAPTER ADAPTER #8 ORING TO TEE #8 #8 TUBE O-RING-TUBE ADAPTER ADAPTER 8M ORING X 8F JIC #8 ORING TO SW ADAPTER #8 TUBE ADAPTER RELIEF PILOT DETAIL B VALVE 8 PORT FRONT OF...
  • Page 50 ASSEMBLY INSTRUCTIONS NOTE: ROUTE HOSES THROUGH ALL HOSE LOOPS AND CLAMPS NOTE: ROUTE HOSES UNDER LIMIT VALVE BRACKET NOTE: ROUTE HOSES UNDER FRONT TUBE OF CENTER FRAME NOTE: ROUTE HOSES THROUGH ALL HOSE LOOPS AND CLAMPS Figure 3-24: Fold Hydraulic Layout 7550-40’-45’ LH 3-34 F-987-0519...
  • Page 51 ASSEMBLY INSTRUCTIONS NOTE: ROUTE HOSES THROUGH ALL HOSE LOOPS AND CLAMPS Figure 3-25: Fold Hydraulic Layout 7550-40’-45’ RH 3-35...
  • Page 52 ASSEMBLY INSTRUCTIONS 90° 3/4ORB3/4JIC 1/32 RES ELBOW 4 X 8 HYDRAULIC CYLINDER BLACK HOSE WRAP 3/8” X 312” HOSE ASSEMBLY 3/4-16 MALE COUPLER FRONT OF MACHINE Figure 3-26: Leveler Hydraulic Installation 3-36 F-987-0519...
  • Page 53 ASSEMBLY INSTRUCTIONS Table provided for general use. NOTES: 3-37...
  • Page 54 ASSEMBLY INSTRUCTIONS 3-3/4 X 8 HYDRAULIC NOTE: ELBOW 90° 1/16 REST ON ROD CYLINDER END OUTSIDE REAR 4-1/2 X 8 CYLINDERS ONLY HYDRAULIC #8 O-RING-TUBE CYLINDER 3/8” X 200” HOSE 3/8” X 64” 3/8” X 240” HOSE HOSE 90° #8 O-RING-TUBE ADAPTER 3/8”...
  • Page 55 ASSEMBLY INSTRUCTIONS 90° #8 O-RING-TUBE ADAPTER NOTE: ELBOW 90° 1/16 REST ON ROD 3/8” X 290” END OUTSIDE REAR HOSE CYLINDERS ONLY 3/8” X 105” HOSE 3-3/4 X 8 HYDRAULIC CYLINDER 4-1/2 X 8 HYDRAULIC CYLINDER 4-3/4 X 8 3/8” X 184” HYDRAULIC FRONT OF HOSE...
  • Page 56 ASSEMBLY INSTRUCTIONS 3-3/4 X 8 HYDRAULIC NOTE: ELBOW 90° CYLINDER 1/16 REST ON ROD END OUTSIDE REAR 4-1/2 X 8 CYLINDERS ONLY HYDRAULIC 3/8” X 205” #8 O-RING-TUBE CYLINDER HOSE 3/8” X 255” 3/8” X 64” HOSE HOSE 90° #8 O-RING-TUBE ADAPTER 3/8”...
  • Page 57 ASSEMBLY INSTRUCTIONS 90° #8 O-RING-TUBE ADAPTER NOTE: ELBOW 90° 1/16 REST ON ROD 3/8” X 312” END OUTSIDE REAR HOSE CYLINDERS ONLY 3/8” X 105” HOSE 3-3/4 X 8 HYDRAULIC CYLINDER 4-1/2 X 8 HYDRAULIC CYLINDER 4-3/4 X 8 3/8” X 190” HYDRAULIC HOSE FRONT OF...
  • Page 58 ASSEMBLY INSTRUCTIONS NOTE: ROUTE HOSES THROUGH ALL HOSE LOOPS AND CLAMPS NOTE: ROUTE HOSES UNDER FRONT TUBE OF CENTER FRAME NOTE: ROUTE HOSES THROUGH ALL HOSE LOOPS AND CLAMPS Figure 3-31: Gang Hydraulic Layout 7550-40’-45’ LH 3-42 F-987-0519...
  • Page 59 ASSEMBLY INSTRUCTIONS NOTE: ROUTE HOSES THROUGH ALL HOSE LOOPS AND CLAMPS Figure 3-32: Gang Hydraulic Layout 7550-40’-45’ RH 3-43...
  • Page 60 ASSEMBLY INSTRUCTIONS Table provided for general use. NOTES: 3-44 F-987-0519...
  • Page 61 ASSEMBLY INSTRUCTIONS Figure 3-33: LED Light Harness Wire Designations 3-45...

  • Page 62: Led Light Installation

    ASSEMBLY INSTRUCTIONS LED Light Installation IMPORTANT Make sure lights are positioned for maximum NOTE visibility from the rear. Refer to (See Figure 3-35.) for light bracket 5. Route the rear harness through all hose loops and placements. slotted holes as shown (See Figure 3-35.
  • Page 63 ASSEMBLY INSTRUCTIONS NOTE: USE 34” HARNESS NOTE: USE TIE STRAPS 1/4-20 X 1-1/4 HEX EXTENSION AS NEEDED AS NEEDED TO FASTEN SCREW & LOCK NUT FOR MAIN HARNESS WIRING HARNESS’S UP 1/4-20 X 1-1/2 HEX TO REACH TRACTOR SO HARNESS’S DON’T SCREW &...
  • Page 64 ASSEMBLY INSTRUCTIONS NOTE: RUN ALL LIGHT HARNESSES THROUGH ALL HOSE CLAMPS ALONG HYDRAULIC HOSES NOTE: SECURE LIGHT HARNESSES WITH PLASTIC TIES STRAPS AS NEDDED TO KEEP OUT OF HINGE AREAS NOTE: RUN ALL LIGHT HARNESSES THROUGH ALL HOSE LOOPS ALONG HYDRAULIC HOSES NOTE: RUN REAR LIGHT HARNESS...
  • Page 65 ASSEMBLY INSTRUCTIONS Table provided for general use. NOTES: 3-49...

  • Page 66: Conditioner Reel Spring Installation (Option)

    ASSEMBLY INSTRUCTIONS Conditioner Reel Spring 5. Assemble 17" heavy spring assembly to reel arm using 1" pivot pin, and 5/16 x 1-1/2” spring slotted Installation (Option) pins. Set pin centers to 21" dimension as shown in Figure 3-36. NOTE  WARNING Refer to Conditioner Single Reel Installation shown in See Figure 3-36.
  • Page 67 ASSEMBLY INSTRUCTIONS 21” NOTE: SIDE PLATE REMOVED FOR CLARITY PIVOT BUSHING 1-1/2 BEARING FLANGE 1-8 X 6-1/2 5/16 X 1-1/2 HEX CAP ROLL PIN SCREW & PIVOT PIN LOCK NUT MACHINERY BUSHING REEL ARM 2-1/2 SNAP RING 1-8 X 9 ADJ.

  • Page 68: Final Assembly

    ASSEMBLY INSTRUCTIONS Final Assembly 4. Connect lights to the tractor and verify operation. 5. Check tires for proper inflation 1. Attach a tractor to the implement and charge the lift 6. Level the disc from side to side as described in system hydraulics as described is “Hydraulic Lift “Leveling (Side to Side)”...

  • Page 69: Operation And Maintenance

    Chapter 4 Operation and Maintenance   DANGER DANGER Never allow anyone to ride on the 7550 VT Plus at Always lock the tractor drawbar in the center any time. Allowing a person to ride on the position when transporting the unit. Failure to do machine can inflict serious personal injury or so can result in serious injury or death and cause death to that person.

  • Page 70: Tractor Preparation

    OPERATION AND MAINTENANCE Tractor Preparation Attaching to the Tractor The 7550 VT Plus is designed to be pulled by tractor 1. Align the tractor drawbar with the machine. Raise or equipped with a double lip or clevis type hitch. If your lower the hitch, as needed, using the swivel jack.

  • Page 71: Hydraulic Lift System

    OPERATION AND MAINTENANCE Hydraulic Lift System 2. The hydraulic system is not filled with oil and should be purged of air before transporting and field The VT Plus is equipped with a rephasing hydraulic lift operations. Carefully hitch the VT Plus to the tractor system to raise and lower the unit in the field.

  • Page 72: Hydraulic Gang Adjust System

    OPERATION AND MAINTENANCE Hydraulic Gang Adjust System 2. The hydraulic system is not filled with oil and should be purged of air before field operations. Carefully The VT Plus is equipped with a rephasing hydraulic gang hitch the VT Plus to the tractor and connect the adjust system to vary disc gang angles in the field.

  • Page 73: Hydraulic Fold System

    OPERATION AND MAINTENANCE Hydraulic Fold System  WARNING 4. The VT Plus is equipped with a hydraulic fold system Escaping hydraulic fluid can cause serious to raise and lower the wing frames for narrow personal injury. Relieve system pressure before transport.

  • Page 74: Folding The 7550 Vt

    OPERATION AND MAINTENANCE Folding the 7550 VT 3. Take note that both center lift transport locks are engaged. Lower machine to locks and continue to 1. Fully raise the machine. hold lever, this will allow the inner and outer wing transport wheels to retract, reducing the transport IMPORTANT width.

  • Page 75: Unfolding The 7550 Vt

    OPERATION AND MAINTENANCE Unfolding the 7550 VT 3. Unfold the machine. Transport locks will disengage from the center lifts during the unfolding process. Unfold in an area that is flat to allow the outer wing 4. Continue to hold lever until the fold cylinders are fully fold plates to lock.

  • Page 76: Field Operation

    OPERATION AND MAINTENANCE Field Operation GANG ADJUST GAUGE 1. The horsepower requirements are typically 10-12 5° TO 15° ADJUSTMENT horsepower per foot of cut. This will vary widely due to speed, depth, moisture, residue and types of soils. Local dealers can help in making recommendations for your areas.
  • Page 77 OPERATION AND MAINTENANCE Table provided for general use. NOTES:...

  • Page 78: Leveling (Side To Side)

    OPERATION AND MAINTENANCE Leveling (Side to Side) d. Measure the distance from the walking beam 1. An adjustable radius rod connects the center frame spindle to the top of the frame on both sides. If lifts together to keep them operating in unison (See there is a difference, it needs to be adjusted by Figure...
  • Page 79 OPERATION AND MAINTENANCE 4. Leveling the Disc 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. 5. To level the unit: a. Verify that all tires are properly inflated, and that the center radius rod adjustment has been MEASURE properly set.

  • Page 80: Leveling Front-To-Rear

    OPERATION AND MAINTENANCE Leveling Front-to-Rear 3. Implements with the hydraulic leveler, can make adjustments on-the-go from the tractor. A reference 1. The leveling feature on the Disc is used to keep the gauge is provided on the implement for a guide. machine level when raising the unit from a working 4.

  • Page 81: Hitch Adjustment

    OPERATION AND MAINTENANCE Hitch Adjustment 4. To adjust the hitch (See Figure 4-13.): a. Lower the 7550 to the ground. 1. It is important for the 7550 to maintain a proper draft b. Adjust the hydraulic cylinder in or out until the line with the tractor to do a level job of discing.

  • Page 82: Scraper Adjustment

    OPERATION AND MAINTENANCE Scraper Adjustment 3. Dual scrapers are provided at the bearing locations to scrape the disc blade and to limit the amount of The 7550 is equipped with rigid scrapers at regular soil and residue carried into the bearing hanger. spools with dual scrapers at the disc bearings.
  • Page 83 OPERATION AND MAINTENANCE Table provided for general use. NOTES: 4-15...

  • Page 84: Disc Blades

    OPERATION AND MAINTENANCE Disc Blades Depth Stop Adjustment (Manual) 1. The 7550 is equipped with24” -4 ga. (.256), or 24” -4 The operating depth of the 7550 is controlled by a ga. (.256) rollable low concavity disc blades on both single-point depth stop.
  • Page 85 OPERATION AND MAINTENANCE Table provided for general use. NOTES: 4-17...

  • Page 86: 7550 Disc Wheel Bearing Maintenance

    OPERATION AND MAINTENANCE 7550 Disc Wheel Bearing 14. Install the star washer aligning tang with spindle keyway. Maintenance 15. Apply grease to one side of the outer nut and install with grease to the star washer side. 16. Torque outer nut to 300 ft-lbs. Endplay of .001” to Center Frame .010”...
  • Page 87 OPERATION AND MAINTENANCE 8 BOLT HUB TRIPLE LIP INNER INNER OUTER & SPINDLE SEAL BEARING BEARING BEARING 156972 7550 WING FRAME WHEELS OUTER 3” X 16/1/2” BEARING SPINDLE 8 BOLT HUB 3/16 X 1-1/2 & SPINDLE COTTER PIN 191974 7550 CENTER FRAME WHEELS 8 BOLT HUB INNER...

  • Page 88: Hydraulic Maintenance

    2. If a cylinder or valve leaks, before disassembling the structure. Do not exceed the implement part, contact Landoll Service at 1-800-428-5655 maximum specified ground speed regardless of for further instructions. Any time a cylinder is the capability of the maximum tractor speed.
  • Page 89 OPERATION AND MAINTENANCE 9. Raise the unit to full transport height. 10. Install transport locks on both lift and fold systems. Do not depend solely on implement hydraulics for transport. (See Figure 4-21.)  WARNING Failure to use transport lock during transport may result in permanent equipment damage, SAFETY serious injury, or death.

  • Page 90: Lubrication Maintenance

    OPERATION AND MAINTENANCE Lubrication Maintenance 7. The gang pivot pin will need greased annually (See Figure 4-22.). Remove the 1/8 hairpin and 3/8 x 3 1. A proper maintenance schedule will insure a long clevis pin. Check to see if 1-3/4-5 castle nut is still operating life and peak performance.
  • Page 91 OPERATION AND MAINTENANCE Figure 4-23: Lubrication Schedule LUBRICATION TABLE INTERVAL ITEM DESCRIPTION NO. OF LUBE POINTS (Hours Unless Stated) Disc Gang Bearings 1 each Radius Rod Wheel Hubs 1 each Front Gauge 6 Bolt Wheel Hubs 1 each Hydraulic Leveler Tube Front Gauge Wheel Caster Hub 1 each Conditioner Reel Bearings...

  • Page 92: Storage

    OPERATION AND MAINTENANCE Storage 2. Store the unit in a shed or under a tarpaulin to protect it from the weather. The ground tools and tires should 1. The service life of the 7550will be extended by proper rest on boards, or some other object, to keep them off-season storage practices.

  • Page 93: Troubleshooting Guide

    Chapter 5 Troubleshooting Guide The Troubleshooting Guide, shown below, is included to help you quickly locate problems that can happen using your 7550 VT. Follow all safety precautions stated in the previous when making any adjustments to your machine. PROBLEM PROBABLE CAUSE SOLUTION UNIT NOT LEVEL, LEAVING CENTER...
  • Page 94 TROUBLESHOOTING GUIDE PROBLEM PROBABLE CAUSE SOLUTION HYDRAULIC - ONE SIDE OF CENTER Center lifts not properly timed. Remove 1” bolt from adjustable radius rod LIFT CYLINDERS NOT FULLY on lifts and fully retract lift cylinders, EXTENDING OR CANNOT INSTALL reinstall radius rod bolt adjusting it to fit ONE TRANSPORT LOCK the lifts in the position.
  • Page 95 Document Control Revision Log: Date Form # New/Updated Improvement(s): Description and Comments 05/20/2019 F-987 Initial Release 05/20/2019 F-987-0519 Update New Manual Revision Release...
  • Page 96 Equipment from Landoll Corporation is built to exacting standards ensured by ISO 9001 registration at all Landoll manufacturing facilities. Model 7550 Adjustable VT Plus Operator’s Manual Re-Order Part Number F-987-0519 LANDOLL CORPORATION 1900 North Street Marysville, Kansas 66508 (785) 562-5381 800-428-5655 ~ WWW.LANDOLL.COM...

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