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4-4

F-987-0519

OPERATION AND MAINTENANCE

Hydraulic Gang Adjust System

The VT Plus is equipped with a rephasing hydraulic gang
adjust system to vary disc gang angles in the field.

Figure 4-3: Hydraulic Leak Detection



WARNING

1.

The rephasing gang adjust system contains smaller
wing frame cylinders plumbed in series with larger
center frame cylinders. It is important that the
cylinders be connected in the proper series for the
gang adjust system to operate correctly. When the
cylinders are fully extended and held in this position,
oil is able to flow through the cylinders (or rephase)
and allow the cylinders to operate in sync. This also
allows the system to purge any air that may enter the
system without having to loosen or crack hydraulic
lines.

2.

The hydraulic system is not filled with oil and should
be purged of air before field operations. Carefully
hitch the VT Plus to the tractor and connect the
hydraulic hoses. Check to make sure the tractor
hydraulic reservoir is full of the manufacturer’s
recommended oil. Slowly adjust the gang angle and
continue to hold the hydraulic lever until all cylinders
are fully extended. Fully extend and retract cylinders
to verify that all cylinders are working simultaneously
throughout the stroke. If the cylinders are not working
evenly or together, fully extend the cylinders and
continue to hold the lever to purge any remaining air.
Do not loosen any hoses or fittings. Recheck tractor
reservoir to make sure it is within operating limits.

3.

Always fully extend the cylinders and hold the lever to
ensure the cylinders are rephased before starting
any field operation. This will keep all cylinders in time
and disc gang angles the same while operating.

5

Escaping hydraulic fluid can cause serious
personnel injury. Relieve system pressure before
repairing, adjusting, or disconnecting. Wear
proper hand and eye protection when searching
for leaks. Use cardboard instead of hands (

Figure 4-3.

) Keep all components (cylinders,

hoses, fittings, etc.) in good repair.

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Содержание VT Plus 7550

Страница 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...

Страница 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...

Страница 3: ...and Hitch Assembly 3 2 Leveler Assembly 3 6 Wing Frame Inner 3 14 Wing Frame Outer 3 16 Fold Assembly Wing 3 22 Hydraulic Installation 3 24 LED Light Installation 3 46 Conditioner Reel Spring Installa...

Страница 4: ...i ii F 987 0519 Center Frame 4 18 Wing Frame 4 18 Hydraulic Maintenance 4 20 Transport 4 20 Lubrication Maintenance 4 22 Storage 4 24 5 Troubleshooting Guide...

Страница 5: ...ing 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 equipment IF YOU HAVE ANY...

Страница 6: ...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 Transporting Safety IMPORTANT It...

Страница 7: ...ausing 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 may result 3...

Страница 8: ...Chain capacity must be greater then the TOTAL weight of all towed implements 2 A second chain should be used between each implement 3 Attach the chain to the tractor draw bar support or specified anc...

Страница 9: ...ary With Reel Placement Tire Inflation Tire Size Tire Manufacturer Ply Load Rating Inflation Pressure Psi Max 480 45R17 AG BKT LOAD INDEX 167A8B 12 015 LBS 25MPH 80 psi VF410 50 R16 IMP BKT LOAD INDEX...

Страница 10: ...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 9 125 156...

Страница 11: ...ade 8 capscrews Use value in if using prevailing torque nuts 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 6...

Страница 12: ...2 4 F 987 0519 STANDARD SPECIFICATIONS Figure 2 3 Conditioner Reel Placement 40 LH COND REEL GANGBAR ASSEMBLY 156 COND REEL GANGBAR ASSEMBLY 91 COND REEL GANGBAR ASSEMBLY 82 18 5 8 20 5 8 26 7 8...

Страница 13: ...STANDARD SPECIFICATIONS 2 5 Figure 2 4 Conditioner Reel Placement 40 RH COND REEL GANGBAR ASSEMBLY 156 COND REEL GANGBAR ASSEMBLY 91 COND REEL GANGBAR ASSEMBLY 82 26 7 8 20 5 8 18 5 8...

Страница 14: ...2 6 F 987 0519 STANDARD SPECIFICATIONS Figure 2 5 Conditioner Reel Placement 45 LH COND REEL GANGBAR ASSEMBLY 156 COND REEL GANGBAR ASSEMBLY 105 COND REEL GANGBAR ASSEMBLY 97 23 5 8 22 5 8 26 7 8...

Страница 15: ...STANDARD SPECIFICATIONS 2 7 Figure 2 6 Conditioner Reel Placement 45 RH COND REEL GANGBAR ASSEMBLY 156 COND REEL GANGBAR ASSEMBLY 105 COND REEL GANGBAR ASSEMBLY 97 26 7 8 22 5 8 23 5 8...

Страница 16: ...2 8 F 987 0519 STANDARD SPECIFICATIONS Table provided for general use NOTES...

Страница 17: ...General Torque Specifications rev 4 97 on page 2 2 CAUTION DANGER WARNING DANGER Be sure to bleed the hydraulic system of all air in lines after installation Failure to bleed the system of all air ca...

Страница 18: ...1 2 mount plates 1 1 2 thrust washers 1 12 lock washers and1 1 2 hex nuts NOTE The hitch may be assembled in the upper or lower position depending on matching tractor drawbar height See Hitch Adjustme...

Страница 19: ...NT FRONT CENTER FRAME LT CENTER FRAME RT BLUE LIFT CAP BEARING M22 X 1 5 HEX NUT TIRE WHEEL ASSEMBLY 8 BOLT HUB SPINDLE ASSEMBLY 3 4 10 X 2 HEX SCREW LOCK NUT 1 8 X 4 HEX SCREW LOCK NUT RADIUS ROD ASS...

Страница 20: ...X SCREW 1 4 20 HEX LOCK NUT 1 4 20 X 1 HEX SCREW 3 4 10 FLANGE NUT 3 4 10 X 10 1 2 HEX SCREW 1 2 13 LOCK NUT 1 2 13 X 12 HEX SCREW 3 8 16 X 2 HEX SCREW PILOT VALVE V1 V2 C1 C2 3 8 16 LOCK NUT 7000 800...

Страница 21: ...ASSEMBLY INSTRUCTIONS 3 5 Table provided for general use NOTES...

Страница 22: ...2 pin 1 2 x 2 1 4 grooved alloy pin and 1 8 hex lock nut NOTE Rotate the 1 2 x 2 1 4 grooved alloy pins in the hitch pins until they are aligned with the slot on side of the 33 leveler tower before ti...

Страница 23: ...TOR ROD 3 16 X 1 SLOTTED SPRING PIN 1 2 X 2 1 4 GROOVED ALLOY PIN 1 1 2 X 6 1 2 PINS 1 1 2 6 HEX NUT 1 1 2 LOCK WASHER 1 1 2 6 X 6 HEX SCREW BALL JOINT LEVELER LINK BUSHING 2 3 16 LEVELER SPACER 1 2 1...

Страница 24: ...ting on the floor Remove the four gangbar slide that are in the center of the frame so the gang connector links can be installed 4 The front gangs have a distance of 26 from center to center of the ga...

Страница 25: ...OCK NUT 61 1 4 FRONT GANGS WLDMT LINK GANG ADJ 7550 WLDMT LIFT BRG INSERT 4 1 2 INSERT 3 4 10 X 14 HEX SCREW LOCK NUT BRG HALF 4 1 2 INSERT 5 X 8 REPHASE CYLINDER 33 REAR GANGS WLDMT LINK GANG ADJ PIN...

Страница 26: ...NG ASSEMBLY GANG PIVOT PIN 1 4 ZERK LCR DISC GANG ASSEMBLY GANG BAR SLIDE STAINLESS STEEL WASHER 3 8 X 3 CLEVIS PIN 1 3 4 5 SLOTTED NUT 1 8 HAIRPIN 1 13 16 THRUST WASHER 3 THRUST WASHER BLUE WASHER W...

Страница 27: ...ASSEMBLY INSTRUCTIONS 3 11 Table provided for general use NOTES...

Страница 28: ...4 10 x 6 hex screws and 3 4 10 lock nuts in orientation show See Figures 3 6 4 Install 1 8 x 6 1 2 hex bolt through the plates from the front and secure with 1 8 lock nut 5 Attach the outer wing stop...

Страница 29: ...REAR FOLD STAB PLATE FRONT 1 8 X 6 1 2 HEX SCREW LOCK NUT OUTER WING WING STOP PLATES WING STABILIZER REAR 4 1 2 X 30 CYLINDER WING STABILIZER FRONT 1 1 4 X 7 PIN 1 1 4 FLAT WASHER 5 16 X 2 1 2 PIN D...

Страница 30: ...ds before installing the 1 3 4 5 hex slotted nuts 3 Secure the 1 3 4 hinge pin with 5 8 x 3 pin 1 3 4 5 hex slotted nut and 3 8 x 2 1 2 slotted spring pin 4 Attach the tire wheel assembly to all 8 bol...

Страница 31: ...MBLY 8 BOLT HUB SPINDLE ASSEMBLY GAUGE WHEEL ASSEMBLY 1 8 X 6 HEX BOLT LOCK NUT GAUGE WHEEL SPACER 5 8 X 3 ROUND PIN 1 3 4 HINGE PIN INNER WING LT INNER WING RT 3 8 X 2 1 2 SLOTTED PIN 1 3 4 5 HEX SLO...

Страница 32: ...e outer wing with 1 3 4 hinge pins 1 2 x 2 1 4 grooved pins and 1 1 4 7 lock nuts 6 Install the 1 3 4 pin w snap ring gang shaft washer through slot and outer hole of outer wing hinge Secure with two...

Страница 33: ...UGE WHEEL SPACER OUTER WING LT RT 1 3 4 THRUST WASHER ON REAR SIDE 1 3 4 HINGE PIN 1 3 4 SHAFT SNAP RING 1 2 X 2 1 4 GROOVED PIN 1 8 LOCK NUT 1 1 4 7 LOCK NUT GANG SHAFT WASHER FOLD LINK 1 1 4 7 LOCK...

Страница 34: ...7550 40 only 3 Tighten down all of the slotted nuts on the inner wing frame using the disc gang wrench provided on the center frame Tighten to 200 ft lbs and then back off to the nearest slot in nut I...

Страница 35: ...SSEMBLY GANG PIVOT PIN 1 4 ZERK LIWR DISC GANG ASSEMBLY 3 4 10 X 10 HEX SCREW 3 4 FLAT WASHER 3 4 10 X 10 3 4 10 X 11 HEX SCREW KEEPER PLATE NOTE 3 4 10 X 11 HEX SCREW FRONT REAR USED ON 7550 40 ONLY...

Страница 36: ...g Outer GANG PIVOT PIN 1 4 ZERK LOWF DISC GANG ASSEMBLY GANG PIVOT PIN 1 4 ZERK LOWR DISC GANG ASSEMBLY 3 4 10 X 10 HEX SCREW 3 4 10 X 10 HEX SCREW 3 8 X 3 CLEVIS PIN GANG PIVOT NUT 1 8 HAIRPIN 1 13 1...

Страница 37: ...MP BUSHING 5 8 11 X 2 HEX SCREW NUT 1 4 20 X 5 8 HEX SCREW LOCK NUT GANG ADJUST DIAL 5 8 11 X 6 11 16 X 7 1 2 U BOLT LOCK NUT 5 8 11 X 2 HEX SCREW LOCK NUT 5 8 11 X 3 HEX SCREW LOCK NUT 5 8 FLAT WASHE...

Страница 38: ...13 lock nuts 3 Mount the wing stabilizer mount rear plates to inner wing in location shown See Figures 3 6 with 3 4 10 x 8 hex screws and 1 2 13 lock nuts 4 Attach the wing stabilizer mount front ass...

Страница 39: ...1 2 FLAT WASHER LOCK NUT WING STABILIZER MOUNT REAR 6 X 3 X 3 1 2 RUBBER BUMPER WING REST MOUNT 4 X 30 CYLINDER 1 1 4 X 7 PIN 1 1 4 FLAT WASHER 5 16 X 2 1 2 PIN LOCK MOUNT 1 8 X 8 1 2 HEX SCREW LOCK...

Страница 40: ...ght o ring to tube adapter and on the base end of all the outer wing fold cylinders 4 x 30 remove the normal 90 degree fitting and replace with an extra long 90 degree fitting See Figure 3 22 through...

Страница 41: ...and couplers See Figure 3 27 through See Figure 3 32 Wrap disc gang cylinders with red hose wrap 12 Attach hoses to tractor or other hydraulic source and purge each system of air and fill cylinders wi...

Страница 42: ...HOSE ASSEMBLY 3 8 X 78 HOSE ASSEMBLY 3 3 4 X 16 HYDRAULIC CYLINDER 3 8 X 24 HOSE ASSEMBLY 4 X 16 HYDRAULIC CYLINDER 4 1 2 X 16 HYDRAULIC CYLINDER LIMIT VALVE 10 90 ADAPTER 3 8 X 64 HOSE ASSEMBLY 3 8...

Страница 43: ...ASSEMBLY 3 8 X 275 HOSE ASSEMBLY 3 8 X 90 HOSE ASSEMBLY 3 3 4 X 16 HYDRAULIC CYLINDER 3 8 X 24 HOSE ASSEMBLY 4 X 16 HYDRAULIC CYLINDER 4 1 2 X 16 HYDRAULIC CYLINDER LIMIT VALVE 10 90 ADAPTER 3 8 X 64...

Страница 44: ...gure 3 18 Lift Hydraulic Layout 7550 40 45 LH NOTE ROUTE HOSES THROUGH ALL HOSE LOOPS AND CLAMPS NOTE ROUTE HOSES THROUGH ALL HOSE LOOPS AND CLAMPS NOTE ROUTE HOSES UNDER FRONT TUBE OF CENTER FRAME NO...

Страница 45: ...ASSEMBLY INSTRUCTIONS 3 29 Figure 3 19 Lift Hydraulic Layout 7550 40 45 RH NOTE ROUTE HOSES THROUGH ALL HOSE LOOPS AND CLAMPS...

Страница 46: ...TER 90 8 FLR SWV 8JIC ADAPTER 90 1 16 RES ELBOW NOTE ROD END OF FOLD CYLINDERS ONLY 90 8 O RING TUBE ADAPTER 4 1 2 X 30 HYDRAULIC CYLINDER 4 1 2 X 30 HYDRAULIC CYLINDER 4 X 30 HYDRAULIC CYLINDER 3 1 4...

Страница 47: ...8 HOSE 4 X 30 HYDRAULIC CYLINDER 3 8 X 120 HOSE 3 8 X 146 HOSE ASSEMBLY 3 1 2 X 8 HYDRAULIC TRANSPORT LOCK CYLINDER 3 8 X 120 HOSE ASSEMBLY 3 8 X 54 HOSE ASSEMBLY 3 8 X 22 HOSE ASSEMBLY 3 8 X 24 HOSE...

Страница 48: ...0 8 FLR SWV 8JIC ADAPTER 90 1 16 RES ELBOW NOTE ROD END OF FOLD CYLINDERS ONLY 90 8 O RING TUBE ADAPTER 4 1 2 X 30 HYDRAULIC CYLINDER 4 1 2 X 30 HYDRAULIC CYLINDER 4 X 30 HYDRAULIC CYLINDER 3 1 4 X 8...

Страница 49: ...CYLINDER 3 8 X 212 HOSE 4 X 30 HYDRAULIC CYLINDER 3 8 X 146 HOSE 3 8 X 168 HOSE 3 1 2 X 8 HYDRAULIC TRANSPORT LOCK CYLINDER 3 8 X 133 HOSE 3 8 X 54 HOSE 3 8 X 22 HOSE 3 8 X 24 HOSE 3 8 X 96 HOSE 3 8...

Страница 50: ...gure 3 24 Fold Hydraulic Layout 7550 40 45 LH NOTE ROUTE HOSES THROUGH ALL HOSE LOOPS AND CLAMPS NOTE ROUTE HOSES THROUGH ALL HOSE LOOPS AND CLAMPS NOTE ROUTE HOSES UNDER FRONT TUBE OF CENTER FRAME NO...

Страница 51: ...ASSEMBLY INSTRUCTIONS 3 35 Figure 3 25 Fold Hydraulic Layout 7550 40 45 RH NOTE ROUTE HOSES THROUGH ALL HOSE LOOPS AND CLAMPS...

Страница 52: ...87 0519 ASSEMBLY INSTRUCTIONS 24 Figure 3 26 Leveler Hydraulic Installation 3 4 16 MALE COUPLER 3 8 X 312 HOSE ASSEMBLY 90 3 4ORB3 4JIC 1 32 RES ELBOW BLACK HOSE WRAP 4 X 8 HYDRAULIC CYLINDER FRONT OF...

Страница 53: ...ASSEMBLY INSTRUCTIONS 3 37 Table provided for general use NOTES...

Страница 54: ...ALE COUPLER 3 8 X 196 HOSE 4 X 8 HYDRAULIC CYLINDER 8 O RING TUBE TEE 8 ORING TO 8 TUBE ADAPTER 90 8 O RING TUBE ADAPTER RED HOSE WRAP 3 8 X 105 HOSE PILOT VALVE V1 V2 C1 C2 8 ORING TO 8 TUBE ADAPTER...

Страница 55: ...90 1 16 REST ON ROD END OUTSIDE REAR CYLINDERS ONLY 4 X 8 HYDRAULIC CYLINDER 4 3 4 X 8 HYDRAULIC CYLINDER 3 3 4 X 8 HYDRAULIC CYLINDER 4 1 2 X 8 HYDRAULIC CYLINDER 3 8 X 290 HOSE 3 8 X 355 HOSE 3 8 X...

Страница 56: ...E COUPLER 3 8 X 196 HOSE 4 X 8 HYDRAULIC CYLINDER 8 O RING TUBE TEE 8 ORING TO 8 TUBE ADAPTER 90 8 O RING TUBE ADAPTER RED HOSE WRAP 3 8 X 105 HOSE PILOT VALVE V1 V2 C1 C2 8 ORING TO 8 TUBE ADAPTER PL...

Страница 57: ...90 1 16 REST ON ROD END OUTSIDE REAR CYLINDERS ONLY 4 X 8 HYDRAULIC CYLINDER 4 3 4 X 8 HYDRAULIC CYLINDER 3 3 4 X 8 HYDRAULIC CYLINDER 4 1 2 X 8 HYDRAULIC CYLINDER 3 8 X 312 HOSE 3 8 X 395 HOSE 3 8 X...

Страница 58: ...INSTRUCTIONS Figure 3 31 Gang Hydraulic Layout 7550 40 45 LH NOTE ROUTE HOSES THROUGH ALL HOSE LOOPS AND CLAMPS NOTE ROUTE HOSES THROUGH ALL HOSE LOOPS AND CLAMPS NOTE ROUTE HOSES UNDER FRONT TUBE OF...

Страница 59: ...ASSEMBLY INSTRUCTIONS 3 43 Figure 3 32 Gang Hydraulic Layout 7550 40 45 RH NOTE ROUTE HOSES THROUGH ALL HOSE LOOPS AND CLAMPS V1 V2 C1 C2...

Страница 60: ...3 44 F 987 0519 ASSEMBLY INSTRUCTIONS Table provided for general use NOTES...

Страница 61: ...ations 5 2 25 5281 2 5 5 1 52 1 8 3 1 72 5 3 1 211 5281 25 036 7 6 1 7851 6723 036 5 7 6 1 7 036 6 7 32 5 9 5 8 7 7851 3 1 72 5 7 7851 7 5281 52 1 7 7 2 7 7851 5 1 5 7 7851 5 5 7 7851 3 1 72 5 3 1 6 5...

Страница 62: ...nuts 32 IMPORTANT Make sure lights are positioned for maximum visibility from the rear 5 Route the rear harness through all hose loops and slotted holes as shown See Figure 3 35 along hydraulic hoses...

Страница 63: ...SO HARNESS S DON T GET DAMAGED 1 4 20 X 3 4 HEX SCREW LOCK NUT SMV EMBLEM 5 8 11 X 4 11 16 X 7 3 4 U BOLT LOCK NUTS 1 2 13 X 1 1 2 HEX SCREW LOCK NUT SMV MOUNT RED AG LAMP 1 4 20 X 1 1 4 HEX SCREW LOC...

Страница 64: ...ALL HOSE LOOPS ALONG HYDRAULIC HOSES NOTE RUN ALL LIGHT HARNESSES THROUGH ALL HOSE CLAMPS ALONG HYDRAULIC HOSES NOTE RUN REAR LIGHT HARNESS THROUGH TUBE OF LH RH LIGHT BRACKETS NOTE RUN ALL LIGHT HARN...

Страница 65: ...ASSEMBLY INSTRUCTIONS 3 49 Table provided for general use NOTES...

Страница 66: ...er hole on rear center or wing frame or double mount using 1 8 x 6 1 2 hex head cap screw and hex lock nut 5 Assemble 17 heavy spring assembly to reel arm using 1 pivot pin and 5 16 x 1 1 2 spring slo...

Страница 67: ...D FOR CLARITY 5 16 X 1 1 2 ROLL PIN PIVOT PIN MACHINERY BUSHING REEL ARM 2 1 2 SNAP RING 17 SPRING ASSEMBLY ADJUSTMENT PIN 1 LOCK WASHER 1 8 X 6 1 2 HEX CAP SCREW LOCK NUT 1 8 X 9 ADJ BOLT 1 8 HEX NUT...

Страница 68: ...w instructions for charging the hydraulic fold system as described in General Operation on page 4 8 4 Connect lights to the tractor and verify operation 5 Check tires for proper inflation 6 Level the...

Страница 69: ...en 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 the...

Страница 70: ...commended pressures listed on the sidewall of the tires or Standard Specifications on page 2 1 5 Check disc scrapers for proper adjustment to the disc blade See Figure 4 1 6 Lubricate the machine as s...

Страница 71: ...the hydraulic lift hoses Check to make sure the tractor hydraulic reservoir is full of the manufacturer s recommended oil Slowly raise the machine and continue to hold the hydraulic lever until all l...

Страница 72: ...ct the hydraulic hoses Check to make sure the tractor hydraulic reservoir is full of the manufacturer s recommended oil Slowly adjust the gang angle and continue to hold the hydraulic lever until all...

Страница 73: ...cylinder hoses to the tractor and fully extend and retract the cylinders several times The cylinder rod travel should be smooth and positive when all air has been purged from the system Due to large...

Страница 74: ...that both center lift transport locks are engaged Lower machine to locks and continue to hold lever this will allow the inner and outer wing transport wheels to retract reducing the transport width It...

Страница 75: ...wheels See Figure 4 5 and See Figure 4 6 3 Unfold the machine Transport locks will disengage from the center lifts during the unfolding process 4 Continue to hold lever until the fold cylinders are f...

Страница 76: ...rame section and to control the leveling feature Maximum discing depth cannot be achieved by raising the lift wheels off the ground Little or no weight on the lift wheels will cause the frame sections...

Страница 77: ...OPERATION AND MAINTENANCE 4 9 Table provided for general use NOTES...

Страница 78: ...igure 4 10 e Let the machine down onto the ground to relieve any pressure but do not fully retract the cylinders Remove the 1 8 x 4 hex screw from one end of radius rod f Loosen the set screw in the c...

Страница 79: ...et to the same distance or slightly higher than the center frame The 7550 40 requires adding 1 from to center frame measurement for the wings The 7550 45 requires adding 1 4 to the center frame measur...

Страница 80: ...presence of a center ridge from the rear gangs the rear gangs are too deep If there is a furrow left from the rear gangs the front gangs are too deep 3 Implements with the hydraulic leveler can make a...

Страница 81: ...er the 7550 to the ground b Adjust the hydraulic cylinder in or out until the pressure is relieved on the leveling system See Leveling Side to Side on page 4 10 and Leveling Front to Rear on page 4 12...

Страница 82: ...aring locations to scrape the disc blade and to limit the amount of soil and residue carried into the bearing hanger Scrapers can be individually adjusted in or out from the concave side of the disc b...

Страница 83: ...OPERATION AND MAINTENANCE 4 15 Table provided for general use NOTES...

Страница 84: ...t Manual The operating depth of the 7550 is controlled by a single point depth stop The stop is located at the center front of the machine 1 Adjust the depth stop by turning the handle in clockwise to...

Страница 85: ...OPERATION AND MAINTENANCE 4 17 Table provided for general use NOTES...

Страница 86: ...may be flipped over if needed to achieve a closer match to aligning with the dowel on the inner nut Inner nut may also need to be rotated slightly for alignment 14 Install the star washer aligning tan...

Страница 87: ...E SLEEVE ASSEMBLY 8 BOLT HUB SPINDLE 156972 7550 WING FRAME WHEELS 8 BOLT HUB SPINDLE 191974 7550 CENTER FRAME WHEELS 6 OD X 4 5 8 ID GREASE PURGABLE SEAL 8 BOLT HUB W CUPS INNER BEARING WHEEL SPACER...

Страница 88: ...s the tractor weight Maximum transport speed for the 7550 is 20 mph for the implement and is designated on the speed identification symbol located on the front of the implement See Figure 4 20 CAUTION...

Страница 89: ...RNING 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 11 Transport...

Страница 90: ...avity 4 Both center frame and wing wheel seals when properly installed will allow grease to pass without harm to seals Regular lubrication will extend service life particularly in severe operating con...

Страница 91: ...ng Bearings 1 each 10 2 Radius Rod 2 50 3 Wheel Hubs 1 each 50 4 Front Gauge 6 Bolt Wheel Hubs 1 each 50 5 Hydraulic Leveler Tube 1 50 6 Front Gauge Wheel Caster Hub 1 each 10 7 Conditioner Reel Beari...

Страница 92: ...discs e Apply a light coating of oil or grease to exposed cylinder rods to prevent them from rusting f Lubricate each point of the machine as stated in Lubrication Table on page 4 23 2 Store the unit...

Страница 93: ...me not level Level wing frames to center frame Lift cylinders not in phase Fully extend lift cylinders and hold hydraulic lever until all cylinders are fully extended Lift wheels not carrying enough w...

Страница 94: ...depth too deep Raise unit Conditions too wet Wait until conditions more favorable In drier conditions set scraper farther away from disc blade to improve residue flow DISC GANG WILL NOT TURN OR PUSHE...

Страница 95: ...Document Control Revision Log Date Form New Updated Improvement s Description and Comments 05 20 2019 F 987 New Initial Release 05 20 2019 F 987 0519 Update New Manual Revision Release...

Страница 96: ...cilities 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 Copyrig...

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