Amity Technology 2720 Operating Manual Download Page 43

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7.17 Rear Grabroll Spacing

Shift to park, disengage the PTO, lower the machine to the ground, relieve hydraulic pressure,
stop the engine, remove the ignition key, and wait for all moving parts to stop before dis-
mounting.

Open the access door.

Adjust bolt (F), shown in Figure 7

29, to change the gap between the smooth grabrolls and

scrolled grabrolls.

NOTE:

To set the gap between the grabrolls to original factory spacing, adjust bolt (F) so dimension

(G) is 2 inches (5 cm).

Adjust the drive belt to the proper tension. (See section 7.19.1).

Adjust rock trip spring compression (C) to 8.5 inches (21.7 cm).

Close the access doors before starting the machine.

IMPORTANT:

Grabrolls must not touch each other under any operating conditions.

Figure 7

29: Rear Grabroll Spacing Adjustment

Summary of Contents for 2720

Page 1: ...UAL 2021 2720 HARVESTER SCRUB 12 ROW 22 8 ROW 30 2800 7th Avenue North Fargo ND 58108 Phone 701 232 4199 Fax 701 234 1716 Www amitytech com MANUAL PART NO MOHE72 RELEASE DATE 01 2021 DESIGNED AND MANUFACTURED IN USA ...

Page 2: ...i This page is intentionally left blank ...

Page 3: ...ponsibilities of Amity Technology to the Owner and Amity Technology shall not be liable for negligence under contract or in any manner with respect to such machines IN NO EVENT SHALL THE OWNER BE ENTITLED TO RECOVER FOR INCIDENTAL SPECIAL OR CONSEQUENTIAL DAMAGES SUCH AS BUT NOT LIMITED TO LOSS OF CROPS LOSS OF PROFITS OR REVENUE OTHER COMMERCIAL LOSSES IN CONVENIENCE OR COST OF RENTAL OR REPLACEM...

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Page 5: ...ng Harvester to Tractor Drawbar 5 1 5 3 Attaching PTO Driveline 5 2 5 4 Using Stands 5 2 6 0 OPERATING THE HARVESTER 6 1 6 1 Start Up 6 1 6 2 Field Operating Speed 6 1 6 3 Turning Radius 6 1 6 4 Break In Period 6 1 6 5 Field Cleaning 6 2 6 6 Lifter Struts 6 2 6 7 Leveling Adjustment 6 2 6 7 1 Manual 6 2 6 7 2 Automatic Depth Control 6 2 6 8 Row Finder 6 3 6 9 Digging Depth 6 3 6 9 1 Pinch Point Sp...

Page 6: ...Paddles 9 1 9 3 Grabrolls 9 1 9 4 Apron Shafts 9 2 9 5 Rear Scrub 9 2 9 6 Beet Tank 9 2 10 0 STORAGE 10 1 10 1 End of Season 10 1 10 2 Beginning of Season 10 1 11 0 LUBRICATION AND MAINTENANCE 11 1 11 1 General Maintenance Information 11 1 11 1 1 Grease Type 11 1 11 2 U Joints 11 1 11 3 Hydraulic Oil Tank Level 11 1 11 4 Drive Belt 11 2 11 5 Lifter Strut Hubs 11 2 11 5 1 Torquing Spindle Nut 11 2 ...

Page 7: ...ht and left hand sides are determined by facing in the direction the implement will travel when moving forward 1 2 Serial Number Record the serial number model number and model year of your harvester to help trace the machine in the event that it is stolen Your dealer also needs these numbers for all warranty claims and for when you order parts The harvester serial number is found on the serial nu...

Page 8: ...afety and operating instructions in the manual All accidents can be avoid ed A person who has not read and understood all operating and safety instructions is not qualified to op erate the machine An untrained operator exposes himself and bystanders to serious injury or death Do not modify the equipment in any way Unauthorized modification may impair the function or safety or both and could alter ...

Page 9: ...ay from all moving and or rotating parts 4 Ensure that all tractor controls are in neutral before starting 5 Never wear ill fitting baggy or frayed clothing when working on or around the machine 6 Make sure that all guards and shields are properly installed and secured before operating the ma chine 7 Clear the area of all bystanders especially children when carrying out any maintenance or making a...

Page 10: ...he skin s sur face 7 Before applying pressure to the system make sure all components are tight and that lines hoses and couplings are not damaged 8 On self contained hydraulic systems make sure that shut off valves are in open position before engaging PTO 2 5 Transport Safety 1 Read and understand all information in the Operator s Manual regarding procedures and safety when operating the machine i...

Page 11: ...gible or parts are replaced without decals then new decals must be applied New decals are available from your authorized deal er PN 9971011 Hazard Moving Parts Avoidance Keep hands feet hair and cloth ing away from moving parts PN 303265 Hazard Crushing from Above Avoidance Never crawl or work under ma chine unless it is properly sup ported PN 9971013 Hazard Moving Parts Avoidance Keep shields and...

Page 12: ...y Alert Avoidance Shut off engine and remove key before performing maintenance or repair work PN 303277 Hazard Falling off Machine Avoidance Do not climb on the machine PN 997861 Hazard General Safety Alert Avoidance Read and understand the Opera tor s Manual before operating the machine PN 9971015 Hazard Falling off Machine Avoidance Do not climb on the machine PN 303263 Hazard Getting Limbs or C...

Page 13: ...ear PN 303267 Hazard Rotating Flails Avoidance Do not approach machine until flail rotation has stopped PN 307165 Hazard Flying Debris Avoidance Keep top door closed when flails are rotating PN 311206 Hazard Whole Body Entanglement Avoidance Do not remove safety shield while engine is running PN 997863 Hazard Electrical Shock Avoidance Keep the machine clear of over head electrical power lines ...

Page 14: ...PN 997853 Hazard Negative Tongue Weight Avoidance Stay clear of the tongue when dis connecting the implement from the tractor Read the Operator s Manual or safety information and operating instructions before op PN 997857 Hazard Loss of Machine Control Avoidance Install the safety chains when attaching the implement to the tractor Read the Operator s Man ual for safety information and op erating i...

Page 15: ...400 PTO Output 1000 RPM 1000 RPM Spline Size 1 3 4 in 20 spline 1 3 4 in 20 spline Vertical Drawbar Load Est 8000 lbs 3629 kg 8500 lbs 3856 kg Minimum Hydraulic Capacity 30 GPM 114 L m 30 GPM 114 L m Hydraulic Pressure 2700 PSI 18 6 Mpa 2700 PSI 18 6 Mpa Number of Remotes 5 remotes or 4 Power Beyond 5 remotes or 4 Power Beyond Table 3 2 Tractor Specifications 3 2 Tractor Specifications Tire Size T...

Page 16: ...ate possible while still providing enough power to run harvester properly Table 3 4 Hydraulic Flow Rates Circuit Standard Metric Beet Tank Elevator 10 gpm 37 9 L m Row Finder Open Center 8 gpm 30 3 L m Hitch Lift 10 gpm 18 9 L m Rear Lift non ADC 10 gpm 37 9 L m Optional Jump Chain 20 gpm 75 6 L m Optional Grabroll Bed Leveling 5 gpm 11 4 L m Optional Active Depth Control Closed Center 16 gpm 22 7...

Page 17: ...formation Figure 4 2 shows the appropriate tire spacing A 4 B B Row Spacing C Tire Width must be as narrow as possible IMPORTANT Tires must be narrow enough not to contact beets when driving down rows while still providing enough traction to pull the harvester NOTE The Front tires must be aligned with the rear tires 4 1 3 Three Point Hitch Position Three point hitches cannot be connected to the hi...

Page 18: ...e schedule oil type and filter replacement info Full Cold Line on the decal should be at the di mension shown in Figure 4 5 CAUTION Valves 1 2 must be open prior to engaging the PTO or system failure will occur Valves in Figure 4 5 are shown in the open position 4 2 3 Scrub Control Box Wiring and Location The scrub control box must be correctly wired and securely fastened in the tractor cab The co...

Page 19: ...the control must be disconnected when not in use After wiring the control box to the tractor the harness on the harvester must be wired to the actuator switch as shown in Figure 4 9 4 2 4 Shield Placement Before starting be sure to secure the shields in operating position closed position 4 2 5 Gearbox Oil Level Check all gearbox oil levels before operating Refer to section 11 0 Lubrication and Mai...

Page 20: ...in on the shield 2 Slide the shield forward 3 Connect the PTO to the spline shaft 4 Lock the PTO in place using two 5 8 inch bolts and nuts 5 Slide and lock the shield into place 4 2 8 Raising Boom Once in the field follow the steps below before lifting beets 1 Raise the boom 2 Set the boom to the desired height by locking pins to one of the 4 holes on the support struts 3 Lower the boom onto the ...

Page 21: ...rning lights operate with the tractor warning lights and turn signals 4 Connect the control monitor or switchbox to the harness routed into the tractor cab 5 2 Attaching Harvester to Tractor Drawbar 1 Adjust the tractor drawbar see Tractor Prep aration section 4 1 1 2 Remove the tractor hitch pin 3 Install required bushings into pull plate 4 Adjust the hitch height 5 Shift to park shut off the eng...

Page 22: ...ion key 2 Raise the tractor PTO shield 3 Lubricate splines on tractor PTO output shaft 4 Pull back on the PTO collar until it latches 5 Align the splines between the harvester driveline and the tractor PTO shaft Push the driveline onto the shaft until the collar snaps forward on the yoke 6 To ensure the PTO is secure pull back on the shield Do not pull on the collar as this will release the latch ...

Page 23: ...ction of the machine creating the need for other operating adjust ments Refer to section 12 0 Troubleshooting if problems occur 6 3 Turning Radius Turning at the end of the field while pulling the harvester requires a wide area One way to accommo date the large turning radius is to plant headland rows Amity recommends a minimum of 48 head land rows on each end of the field IMPORTANT Failure to pro...

Page 24: ...conditions The rubber bumper compresses when the wheels strike a large rock and allow the assembly to move upward The movement minimizes wheel damage 6 7 Leveling Adjustment 6 7 1 Manual To obtain optimal performance of the harvester the machine must be level from left to right and front to rear while har vesting The rear struts can be adjusted to compensate for a harvest er that is not level See ...

Page 25: ...and Position The pinch point position and spacing should be placed to allow maximum beet yield while minimiz ing the amount of excess soil and debris entering the machine See sections 7 4 and 7 5 for adjust ments 6 10 Wheel Fillers Optional wheel fillers can be bolted onto lifter wheels to lift more soil helping reduce beet damage in extremely dry conditions and loss of small beets through lifter ...

Page 26: ...er paddles are required when using rock struts to lift beets and work well in standard soil conditions Plastic paddles are available for better cleaning action in heavy clay based soils and cannot be used with rock struts Figure 6 10 shows the two styles of pad dles Sections 7 8 and 7 9 have information regarding adjustments for paddles and the paddle shaft 6 13 Apron Chain The apron consists of s...

Page 27: ...damage See sections 7 12 7 13 and 7 14 for front grabroll spacing and speed adjustments 6 14 2 Rear Grabroll Bed The rear grabrolls provide additional cleaning while transferring beets to the rear center of the harvester to discharge them into the scrub As with the front grabroll bed the smooth grabrolls are spring mounted to allow relief for rocks as they pass over the rolls Kickers welded to the...

Page 28: ...rolled tension system maintains constant belt tension across a range of field condi tions This system pressure is set to 250 psi from the factory Do not adjust this setting The inside chain typically runs faster than the out side chain providing additional cleaning NOTE The larger the difference in the chain speed the greater the chance of additional dam age to the beets 6 18 Elevator Chain The el...

Page 29: ... engaged Continue running the PTO at 1000 RPM until the grabroll bed is empty and the harvester is completely clear of beets 2 Once there are no beets left in harvester throttle the tractor down to idle and disengage the PTO CAUTION When shutting down or reducing ground speed the PTO must remain turning at 1000 RPM until the harvester is completely clear of beets Failure to allow the necessary tim...

Page 30: ...r wands should be angled down when lifted out of the ground Dimension A can be adjusted using nuts D Adjusting Height E 1 To change height E of the row find er loosen bolts C 2 Adjust jam nuts G to desired height 3 After adjusting height E tighten bolts C NOTE The wands should be angled down slightly when the machine is out of the ground This will create down pressure from spring B when the machin...

Page 31: ...DC 1 Raise the rear of the harvester with the hydraulic cylinders 2 Add or remove cylinder stops as necessary 3 Lower the rear of the harvester onto the stops NOTE A 1 inch 2 5 cm stop in a rear cylinder pro vides approximately 1 inch 2 5 cm of lift in the corre sponding front side NOTE The harvester might not be level as a result of the weight of the extended boom Adjusting the rear struts will h...

Page 32: ...ition Figure 7 5 Pinch Point Adjustment 1 Loosen the two nuts on the front of the strut 2 Add or remove spacers G to adjust the pinch point forward or back 3 Re tighten the hex nuts when desired position is reached Figure 7 6 Pinch Point Height NOTE The addition of one spacer G will decrease the pinch point height by inch 1 3 cm and two spacers by 1 inch 2 5 cm Numbers are approximate NOTE If harv...

Page 33: ...ust the other half of the spacer to allow another spacer to be added or removed 2 Add or remove spacers B as necessary It is most common to work in sets of four half moon spac ers 3 Tighten the lifter wheel bolts NOTE The addition or subtraction of one spacer B will add or subtract 0 1875 inches 4 8 mm respec tively from the pinch point width NOTE Pinch point may need to be readjusted over time du...

Page 34: ...2 The bolts must line up exactly in line with the opposite spokes of the lifter wheels or they will not line up correctly on the wheel fillers Figure 7 11 Adding or Removing Center Mount Filler Wheels Figure 7 12 Center Mount Wheel Filler Hole Alignment 7 6 2 Adding Rim Mount Filler Tabs 1 Insert the filler tab into the slot on the backside of the lifter wheel 2 Fasten with a bolt and nut as shown...

Page 35: ...the harvester is equipped with rock struts the distance C shown in figure 7 16 between the lifter wheels and paddle shaft must have at least 1 inch 2 5 cm of clearance to protect the paddle shaft from the lifter wheels in the event of contact with a rock 1 Shift to park disengage the PTO lower the machine to the ground relieve hydraulic pressure stop the engine remove the ignition key and wait for...

Page 36: ...rut 9 The rim should clear the shaft by at least inch 1 3 cm If the rim is touching the shaft raise the paddle shaft until it clears by at least inch 1 3 cm 10 If the bumper compression is adjusted raise the wheel off the block and lower it again Check the clearance again 11 Repeat the procedure with each set of lifter wheels This will ensure that none of the wheels will contact the paddle shaft 1...

Page 37: ...7 19 4 To adjust the shaft loosen the jam nuts holding the adjustment rods on the bearing mounting arms 5 Use the adjusting rod and slide the bearing mounting arms apart or together NOTE Adjusting the lower shaft too close to the lifter wheels can cause loss of beets 6 Always measure the dimension between the shaft cen ters when making adjustments keeping the dimension equal on the left and right ...

Page 38: ...on chain or attach the new chain to the old chain before its removal Use it to thread the new chain over the sprockets 7 Thread a new chain over the sprockets bringing the ends together 8 Hook the ends of the chain together 9 Repeat steps 5 8 for each apron chain 10 Use the adjusting rod to slide the lower apron shaft into position to give the required tension making sure the apron chain does not ...

Page 39: ... 11 2 Replacing Belt 1 Follow steps 1 2 from above 2 Loosen nut B shown in Figure 7 22 until the belt is loose 3 Remove the old belt and install a new belt 4 Tighten nut B until spring length A is 13 5 inches 34 cm 5 Lock double nuts B and check the align ment of the sheaves 6 Make sure belt is in the proper grooves and secure the access door before starting the machine 7 Adjust nuts D to readjust...

Page 40: ...oll Height Smooth grabroll height adjustments affect the amount of time beets remain on the grabrolls cleaning as well as the effectiveness of the cleaning Decreasing the height of the grabrolls to below that of the scrolled grabrolls will increase cleaning action NOTE Aggressive cleaning action will increase the chance of addition al damage to the beets 1 Shift to park disengage the PTO lower the...

Page 41: ...s 9 Place the taper lock hub on the shaft and then insert the key into the shaft and hub 10 Start the bolts through the taper lock hub into the sheave 11 Align sheave A with the other sheaves and tighten evenly Be sure the sheaves are aligned with each other after tightening 12 Reinstall the grabroll bed drive belt 13 Close the access door before starting the machine NOTE Grabrolls turn at 552 RPM...

Page 42: ...he cleaning De creasing the height of the grabrolls to below that of the scrolled grabrolls will increase cleaning action NOTE Aggressive cleaning action will increase the chance of additional damage to the beets 1 Shift to park disengage the PTO lower the ma chine to the ground relieve hydraulic pressure stop the engine remove the ignition key and wait for all moving parts to stop before dis moun...

Page 43: ...o change the gap between the smooth grabrolls and scrolled grabrolls NOTE To set the gap between the grabrolls to original factory spacing adjust bolt F so dimension G is 2 inches 5 cm 4 Adjust the drive belt to the proper tension See section 7 19 1 5 Adjust rock trip spring compression C to 8 5 inches 21 7 cm 6 Close the access doors before starting the machine IMPORTANT Grabrolls must not touch ...

Page 44: ... 19 1 Belt Tension 1 Shift to park disengage the PTO lower the machine to the ground relieve hydraulic pressure stop the engine remove the ignition key and wait for all moving parts to stop before dis mounting 2 Open the access door 3 Loosen bolt B on the adjustment slide 4 Adjust the adjustment rod D until spring length A is 13 5 inches 34 cm 5 Tighten bolt B 6 Close the access door before starti...

Page 45: ...emove the ignition key and wait for all moving parts to stop before dis mounting 2 Open the access door 3 Remove the drive belt 4 Remove sheave A from grabroll 4 and attach to the harvester frame using the stub shaft in cluded in reverse 4 kit B 5 Install idler pulley E onto grabroll 4 shaft Tighten both of the lock rollers 6 Attach sprockets C to the shafts on grabrolls 4 and 5 using hubs provide...

Page 46: ...he sprockets periodically during the sea son and whenever replacing roller chains To check alignment lay a straight edge along a machined surface of the sprockets If there is any misalignment adjust the sprocket For sprockets on a shaft with end float align the sprocket for the normal operating posi tion Install the replacement chain around both sprockets bringing the free ends together on one spr...

Page 47: ... chain movement as shown in Figure 7 35 7 21 4 Drive Chain and Apron Shaft Chain Drive Chain A has 1 to 2 inches 3 8 5 1 cm of allowable chain movement Likewise Apron Shaft Chain B has 1 to 2 inches 3 8 5 1 cm of allowable chain move ment Both chains are shown in Figure 7 36 Figure 7 35 Grabroll Bed Chain Tension Figure 7 34 Jump Chain Tension A B Figure 7 36 Drive Chain and Apron Shaft Chain ...

Page 48: ...hes prevent failure of rotating compo nents in the event they stop rotating All slip clutches are set at the factory and no field adjust ments are necessary IMPORTANT Do not use any type of oil on slip clutches Tubes of preset length are housed inside the slip clutch springs These tubes prevent over tightening of the slip clutch Do not remove the preset tubes Figure 7 37 Slip Clutches ...

Page 49: ...7 20 Figure 7 38 Rear Scrub shown with Scrub Chain Rollers and Head Shafts 7 23 Rear Scrub ...

Page 50: ...e in the chain speed the greater the chance of additional damage to the beets 7 24 Head Shaft Sprocket Dimensions The distance between the head shaft sprockets idler sprockets and idler rollers is important The schematics shown in Figure 7 41 are a good starting point for sprocket and roller placement IMPORTANT The dimension indicated by G below is the distance between the face of the sprocket and...

Page 51: ...t to park disengage the PTO lower the machine to the ground relieve hydraulic pressure stop the engine remove the ignition key and wait for all moving parts to stop before dis mounting 2 Tighten nut A shown in Figure 7 44 until at de sired chain tension If the spring is fully compressed and more chain ten sion is required 1 Loosen nut A until the spring is not under com pression 2 Remove nut B and...

Page 52: ...ght The elevator must be set high enough above the truck or cart to ensure clearance at all times Be sure to leave enough room to compensate for when the harvester drives along contours in the field There are two elevator height adjustment methods 1 Hydraulic cylinder mounting brackets A have two mounting locations This will alter the maxi mum and minimum elevator heights 2 There are multiple loca...

Page 53: ...and marking that has been damaged or lost 8 2 Preparing for Transport 1 Run the machine until it is clear of beets and the tank is empty 2 Clean all soil and debris off the machine 3 Lower the boom 4 Raise the machine out of the ground 5 Make sure all safety decals and lights are clean and visible and all tail lights and turn signals function properly CAUTION Always use warning lights when trans p...

Page 54: ...components to prevent seal failure 9 2 Lifter Struts and Paddles Lifter struts and paddles typically require the most fre quent cleanings Any mud buildup around the lifter struts and paddles must be periodically removed for optimum performance and to prolong machine life IMPORTANT If left unclean mud buildup in these are as may lead to paddle shaft failure slip clutch failure excessive paddle wear...

Page 55: ...up with mud balls or beets This area should be checked frequently and emptied if buildup occurs The areas around the bogie wheels and frame cross members must also be kept clean If left unclean mud balls may cause the belted chain to jump off the sprockets 9 6 Beet Tank The elevator boom structure bogie wheels slides and frame members should be cleaned frequently to prevent soil buildup Excess soi...

Page 56: ...ot deflate the tires If exposed to the elements put covers over tires to protect them from light grease and oil 10 2 Beginning of Season 1 Attach the harvester to the tractor see section 5 0 2 Remove all support blocks from the lifter struts and rear struts 3 Lubricate the entire machine see section 11 0 Lubrication and Maintenance This will force any col lected moisture out of the bearings Replac...

Page 57: ...ease SAE multipurpose high temperature extreme pressure grease with less than 1 mo lybdenum disulfide grease should be used Clean grease fittings before using a grease gun Replace any lost or broken fittings immediately If a new fitting fails to take grease remove it and check for failure of adjoining parts 11 2 U Joints IMPORTANT On needle bearings A use of grease with more than 1 molybdenum disu...

Page 58: ...ings are seated properly before tightening the spindle nut 2 Torque the spindle nut to 200 ft lb 271 2 N m while continuously rotating hub A At this point the hub should be difficult to rotate 3 Loosen the spindle nut one full turn or until it s loose 4 Torque the spindle nut to 50 ft lb 67 8 N m while continuously rotating the lifter wheel hub 5 Back off the spindle nut 1 6 of a turn or just enou...

Page 59: ...g heating and cooling cycles of op eration If it cannot vent oil will seep out of seals and run low Prolonged operation with low oil lev els will damage the internal components To clean the breather 1 Remove breather A 2 Stop up the breather opening using a plastic plug or a clean rag to prevent contaminants from entering the gearbox 3 Soak the breather in solvent for one hour 4 Use a pointed inst...

Page 60: ...o not contaminate slip clutches with oil This may cause slippage and lead to prema ture fiber disc replacement 11 9 Hook Rod Chains Hook rod chains such as the apron chain is a high wear item Hook rod chains should be replaced when the chain is worn 40 through at the joints NOTE Sprockets should typically be re placed when replacing chain NOTE By the time the apron chain has experienced 40 wear ap...

Page 61: ...drive sprockets for belted and hook chains 3 Service apron chain Check tension and remove links if necessary 4 Check belted chain splices 5 Check for drive belt tension and wear check idlers for proper tension and alignment Adjust as required 6 Check roller chain tension and wear check sprockets and idlers for proper tension and align ment Adjust as required 40 Hours 1 Check oil level in gearboxes...

Page 62: ...s 2 4 Roller Chain SAE 20 20 to 40 F 12 Hours As required 8 5 Sealed Ball Bearings Multi Purpose Grease 12 Hours 1 2 pumps Multiple 6 Front Gearbox EP 80W90 Oil 250 Hours Annually 5 Qt 1 Rear Gearbox EP 80W90 Oil 250 Hours Annually 3 Qt 1 7 U Joint Multi Purpose Grease 40 Hours 2 3 pumps 5 8 Rear Strut Multi Purpose Grease 250 Hours 1 2 pumps 2 9 Hydraulic Tank ISO 32 Equivalent SAE low 250 Hours ...

Page 63: ...11 7 1 2 3 4 5 6 7 A B B 1 2 3 5 5 4 7 6 ...

Page 64: ...11 8 ...

Page 65: ... 11 1 PTO Driveline Servicing Figure 11 9 PTO Shaft Constant angle applications must have a lube interval of 4 hours NOTE Replacement parts are not lubricated They must be lubricated at the time of assembly After that use the recommended frequency and quantity for each location Description Frequency Quantity Instances Cross and bearings 8 hours 2 3 pumps 3 Telescoping members 8 hours 8 10 pumps 1 ...

Page 66: ...roper speed see section 6 2 Tractor operating under 1000 RPM PTO speed Increase tractor throttle so PTO rotates at 1000 RPM Lifter wheels digging too shallow Lower machine Paddle shaft too slow Increase PTO speed or hydraulic speed Loss of beets through grabrolls Rollers too far apart Move rollers closer together or tighten rock spring see section 7 15 Dirt sticking to rollers Install larger drive...

Page 67: ...d properly Digging too deep Raise machine to prevent excessive amounts of material from being loaded Move into up position see section 7 13 Increase ground speed see section 6 2 Beets not coming out of lifter wheels Run defoliator over field again to eliminate excess debris Replace rubber paddles Excessive debris mud being loaded into machine Poor defoliation job Lower paddle shaft see section 7 8...

Page 68: ...deep Raise machine Ground speed too fast Reduce ground speed Incorrect pinch point position Wheel fillers are installed Pinch point is too wide Remove lifter wheels spacers see section 7 4 Soil buildup on grabrolls Loading excessive soil Refer to problem listed above Grabrolls moving too slow Speed up cleaning rolls with larger drive sheave see section 7 14 Soil conditions clay mud temperature Cle...

Page 69: ...d incorrectly Adjust toward lifter wheels see section 7 7 Breaking beets Digging too shallow Lower machine Small beets or dry conditions Install reverse 4 grabroll kit Grabrolls moving too fast Install smaller drive sheave see section 7 14 Pinch point too marrow Add wheel spacers see section 7 4 Tractor tires running over beets Adjust tractor tires properly see section 4 1 2 Grabrolls opened too f...

Page 70: ...vester to allow it follow the ground evenly To de termine what should be considered level with the ground the harvester has two mechanical wands at the front of the machine that ride on the ground Using sensors on these wands the electronic control unit ECU controls the valve bank to level the harvester This system is an ISOBUS platform ISOBUS is an international communication protocol that standa...

Page 71: ...virtual terminal or VT is the physical screen that the user will interface with Softkeys Softkeys are a set of icons that are used to perform actions on the VT These icons are usu ally off to one side of the screen and come in a list form Different VTs will display a different number of softkeys at one time and almost all will require the user to page through to access all available icons Page A p...

Page 72: ...ADC system follow these rules 1 Read and understand this operator manual on how the system works and what all the controls are and do 2 Only supply hydraulic oil to the ADC valve when you are ready and intend to use the system Make sure all people and objects are outside the danger zone of the harvester before supplying oil Shut off the oil supply anytime the system will not be in use 3 Note that ...

Page 73: ...se Hitch Incrementally raises the front of the harvester using the hitch Home Screen Opens the main screen Joystick Toggle Activates and deactivates the use of the joystick Softkey Pager Changes softkey pages Rear Axle Max Height Raises the rear axle all the way up Settings Screen Opens the setting screen Wand Calibration Calibrates the wands Wand Calibration Success This icon will show momentaril...

Page 74: ...m Status The right slice of the pie will be filled in there are no active alarms PTO Status The left slice of the pie will be filled in if the PTO is running A System Readiness Chart The system readiness chart is a pie chart that is made up of three section that represent criteria that must be met before the system can enter into AUTO mode Below are the descriptions of each sec tion of the pie Sys...

Page 75: ...ick in not ac tive Figure 13 7 The icon will be green if the joystick is active Figure 13 8 Figure 13 6 Toggle On Off Softkey Figure 13 7 Joystick Inactive Icon Figure 13 8 Joystick Active Icon Manual Mode Manual mode is the natural state of the system The system will not preform any action until in put is received from the user AUTO Mode AUTO mode is the harvesting mode in which when entered the ...

Page 76: ...In certain configurations of the joystick the joystick can be used to change the depth See joystick sec tion for more information Again this will change the depth in increments of 0 2 inches There are also two softkeys that will raise and lower the depth in increments of 0 2 inches Figure 13 10 and 13 11 The last way to change the target depth is by directly selecting the target depth number which...

Page 77: ...ependent If the PTO is not running the hitch will move for a longer period of time or further than if the PTO is run ning If the PTO is not running the hitch will move for four seconds If the PTO is running the hitch will move for 0 3 seconds While in AUTO mode if the raise hitch function is held for three seconds the system will enter into an End Row function Raising or lowering the hitch while i...

Page 78: ...g Selecting a higher number will increase the angle the beets are required to climb across the grabrolls and jump chain which increases the amount of cleaning time for the beets To either side of the setpoint number on the main page is a bar graph that shows the instantaneous location of the cylinders within their stroke Due to physical limitations in the axle there can only ever be a maximum of a...

Page 79: ...d see section 13 1 8 Calibration Wand Sensor Voltage The wand voltage is the reading of the angle sensors on the wands in front of the machine The voltage should be between 0 5 and 4 5 volts As the wand is moved up and down the voltage should move between this range accordingly Axle Position Sensor Voltage The axle voltage is the reading from the rear axle cylinder sensors The voltage should be be...

Page 80: ...the options shown on the screen The configuration will be outlined in green once selected to show which option is currently being used The possible functions that the joystick can per form are as follows 1 AUTO Toggles in and out of AUTO mode 2 END ROW Enters the system into End Row mode 3 Increase the target depth of the harvester Increases the depth in increments of 0 2 inches 4 Decreases the ta...

Page 81: ...chieve while in AUTO mode The depth of the machine is determined by the wands in the front of the machine To change the depth use the plus and minus buttons on the sides of the current setting The plus and minus buttons will change the target depth in increments of 0 2 By directly selecting the setting number a pop up keypad will appear and a number can be typed in manually Figure 13 31 Target Dep...

Page 82: ...inch from the setpoint and the other will move down 1 inch from the setpoint There are four setpoints to chose from 2 inches 4 inches 6 inches and 8 inches Select the current setting to make a list pop up for selecting a different setpoint Figure 13 33 Axle Setpoint Pop Up List Sound Notifications If your VT is compatible with sound there is the option of having the screen beep when entering and e...

Page 83: ...Active Alarms Page A C B D A Alarm ID Each possible alarm has a specific alarm ID that allows for easy lookup in the next few of pages of this manual B Alarm Title The alarm title is the name given to the alarm C Information Icon By selecting the information icon more information on the highlighted alarm is displayed This pop up gives a brief description of the alarm and possible causes Figure 13 ...

Page 84: ...on When an alarm is initially triggered an error pop up message Figure 13 38 will appear and remain until it is acknowledged Figure 13 39 is the softkey used to acknowledge the error The alarm will then be added to the alarms list page Once the cause of the alarm is addressed the alarm will be re moved automatically Figure 13 38 Error Pop Up Figure 13 39 Error Acknowledgement Softkey ...

Page 85: ... a few yards stop and measure the actual depth the machine is digging and adjust accordingly This number can also be changed while harvesting if needed Axle Setpoint Set the height of the rear axles Typically this number will be set a 2 in most applica tions For muddier conditions or situations that require more cleaning a higher setting will be re quired Creating an incline in the cleaning bed of...

Page 86: ...rent Mode box will change color to green and say AUTO to signify that the system is in AUTO mode 4 Harvest sugar beets a Once AUTO mode is engaged the harvester will drop the lifter wheels into the ground and begin to self level and maintain the target depth 5 Disengage AUTO and lift the machine out of the ground at the end of the row a This can be done in three different ways 1 Disengage the AUTO...

Page 87: ...heck wiring harness harness con nectors and solenoid for damage Replace any damaged parts 4 Hitch Solenoid Open Fault Too low an output current is detected on the controller output driving the hitch solenoid Fault can be caused by Faulty wire harness between controller and solenoid OR faulty solenoid Check wiring harness harness con nectors and solenoid for damage Replace any damaged parts 5 Left ...

Page 88: ...ls to move a defined dis tance within the defined time Fault can be caused by Obstructed axle OR faulty solenoid Check wiring harness harness con nectors and solenoid for damage Replace any damaged parts Check for any Obstructions Check for oil pressure or leaks 11 Left Wand Depth Sen sor Error Invalid voltage is detected on the left height sensor Fault can be caused by Faulty wire harness between...

Page 89: ...tion Right and or left wand depth sensor readings are outside the acceptable target depth range Check wands for mechanical prob lems or damage Check for oil flow and leaks 16 Axle Cylinder Setpoint Exceeded Condition Right and or left axle cylinder readings are outside the acceptable setpoint range Check for oil flow and leaks 17 Axle Cylinder Position Differential Discrepan cy Condition Differenc...

Page 90: ...esult in bushing failure and will void all warranties 1 Both the shaft and component bore must be completely free of paint grease oil dirt and burrs Clean the surfaces with a non petroleum based solvent such as isopropyl alcohol 2 Insert the Trantorque into the bore making sure that the mating hub is flush against the shoulder at the hex flats 3 Insert the shaft fully and hand tighten the nut unti...

Page 91: ...14 2 14 3 Belted Chain Splice Procedure ...

Page 92: ...oth the hub and the shaft to help during blind in stallations Installation 1 Be sure the tapered cone surfaces of the bushing and the inside of the driven product are clean and free of anti seize lubricants 2 Place the bushing in the sprocket or other Martin MST part 3 Place the cap screws loosely in the pull up holes The bushing remains loose to ensure a sliding fit on the shaft 4 With the key on...

Page 93: ... accordance with the engineering information specified in the catalog Proper installation maintenance and operation procedures must be observed The instructions given above must be fol lowed Inspections should be made as necessary to ensure safe operation under prevailing conditions All rotating power transmission products when used in a drive are potentially dangerous and must be guarded by the u...

Page 94: ...d Assembly Removal 1 Remove the EASY LOCK tab with a screwdriver Figure 14 3 2 If the guard is chained remove or hold back the chain to prevent it from blocking the bearing 3 Turn the bearing in the direction as indicated in Figure 14 4 Then slide guard off the bearing Assembly 1 Align the bearing tabs with the guard bell slots 2 Slide the bell onto the bearing 3 Turn the bearing to lock it in pla...

Page 95: ...gement is properly started This will prevent them from failing when tightened Tighten cap screws with a plastic insert or crimped steel type lock nuts to ap proximately 50 of the torque shown in Table 14 3 Tighten toothed or serrated type lock nuts to the full torque value Figure 14 5 Bolt Grade Identification Table 14 3 Torque Chart Size A Grade 5 Grade 8 Standard Metric N m lb ft N m lb ft 1 4 6...

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Amity Technology 2720, Operating Manual

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