Operator s/parts Manual

Transcription

1 Operator s/parts Manual CPH and CP1000 Coulter Command System Manufacturing, Inc. P.O. Box 5060 Salina, Kansas ! Read the operator s manual entirely. When you see this symbol, the subsequent instructions and warnings are serious - follow without exception. Your life and the lives of others depend on it! Cover illustration may show optional equipment not supplied with standard unit. Copyright 1999 Printed 2/30/ M-B

2 Table of Contents Great Plains Mfg., Inc. Table of Contents Table of Contents Important Safety Information Safety Rules Introduction Product Overview Using This Manual Definitions Important Notice Pre-Assembly Checklist Coulter Command Assembly Depth Sensing Wheel Section 1 Assembly Instructions & Set-Up Lift Switch Assembly Wiring Harness Tongue Cylinder Hydraulic Control Valve Control Box Coulter Command Assembly Adjustments Section 2 Operating Instructions Load Sensing Hydraulics Hydraulic Hook-Up & Function Closed-center hydraulic systems Open center hydraulic systems Operation of Electronic Controls Field Adjustments Lift Switch Speed Sensor Hydraulic Valve Transport Cylinder Depth Channels Section 3 Troubleshooting System Schematics Hydraulic Schematic Electrical Schematic Section 4 Maintenance and Lubrication Maintenance Lubrication Section 5 Parts Coulter Depth Control Hydraulics Coulter Command Electronics Coulter Command Gauge Wheel Assembly Top Link Assembly Coulter Command Switch Mount Lift Circuit Manifold ( C) Coulter Depth Control Valve ( C) O-Ring Identification Chart Appendix Torque Values Chart for Common Bolt Sizes Tire Inflation Chart Warranty CPH and CP1000 Coulter Command System M-B 9/21/05

3 Great Plains Mfg., Inc. Important Safety Information Important Safety Information For your safety and to help in developing a better understanding of your equipment we highly recommend that you read the operator sections of this manual. Reading these sections not only provides valuable training but also familiarizes you with helpful information and its location. The parts sections are for reference only and don t require cover to cover reading. After reviewing your manual store it in a dry, easily accessible location for future reference.! The SAFETY ALERT SYMBOL indicates that there is a potential hazard to personal safety involved and extra safety precautions must be taken. When you see this symbol, be alert and carefully read the message that follows it. In addition to design and configuration of equipment; hazard control and accident prevention are dependent upon the awareness, concern, prudence and proper training of personnel involved in the operation, transport, maintenance and storage of equipment. Watch for the following safety notations through-out your Operators Manual:! DANGER! Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. This signal word is limited to the most extreme situations.! WARNING! Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. 1. Escaping fluid under pressure can have sufficient force to penetrate the skin. Check all hydraulic lines and hoses before applying pressure. Fluid escaping from a very small hole can be almost invisible. Use paper or cardboard, not body parts, to check for suspected leaks. If injured, seek medical assistance from a doctor that is familiar with this type of injury. Foreign fluids in the tissue must be surgically removed within a few hours or gangrene will result. 2. Make sure all people, animals, and objects are clear of the coulter tool bar before switching the tongue hydraulics switch to the "auto" mode. 3. Do not crawl under a raised machine without the transport lock blocks securely in place. Sudden hydraulic activation or failure could cause serious injury or death. 4. Never permit anyone to ride on hitch or planting equipment when moving. 5. Never permit anyone to ride tractor when hitch is being moved. 6. Do not pull the Center Pivot Hitch faster than 20 miles per hour. 7. Always set the hitch in field position before assembling, lubrication, making adjustments, or servicing. Periodically check bolts for tightness and lubricate all fittings. 8. Shut off hydraulics valves and shut down tractor before preforming any maintenance to the hitch or crawling under it. 9. Do not allow anyone to operate the machine who has not been properly trained in its safe operation. 10. Do not operate equipment while under the influence of drugs or alcohol. 11. Keep hands, feet, hair, and clothing away from all moving parts. 12. Clear the area of bystanders, especially small children and animals before moving and operating equipment. Review the safety instructions annually.! CAUTION! Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe practices. Safety Rules Most accidents are the result of negligence and carelessness, usually caused by failure of the operator to follow simple but necessary safety precautions. The following safety precautions are suggested to help prevent such accidents. The safe operation of any machinery is a big concern to consumers and manufacturers.your Coulter Command System has been designed with many built-in safety features. However, no one should operate this product before carefully reading this Operator s Manual. 9/21/05 CPH and CP1000 Coulter Command System M-B 1

4 Great Plains Mfg., Inc. Introduction Introduction This manual applies to the following: A CPH Coulter Command A CPH Coulter Command Update A CP1000 Coulter Command This manual has been prepared to instruct you in the safe and efficient operation of your Coulter Command System. Read and follow all instructions and safety precautions carefully. The parts on your Coulter Command have been specially designed and should only be replaced with genuine Great Plains parts. Therefore, should your Coulter Command require replacement parts go to your Great Plains Dealer. Product Overview The Coulter Command couples a microprocessor with electro-hydraulics to provide a state-of-the-art system for maintaining coulter depth regardless of the terrain or soil type. It also provides coulter depth adjustment "From The Tractor Cab". The Coulter Command system contains a depth sensing wheel, an electronic control box, a speed sensor, a depth sensor box, a lift control switch, a wiring harness, a top link, and a hydraulic control valve. It also uses the tongue cylinder from your Center Pivot Hitch (CPH) or CP1000. Using This Manual For your safety and to help in developing a better understanding of your equipment we highly recommend that you read the operator sections of this manual. Reading these sections not only provides valuable training but also familiarizes you with helpful information and its location. The parts sections are for reference only and don t require cover to cover reading. After reviewing your manual store it in a dry, easily accessible location for future reference. Definitions The right hand and left hand as used throughout this manual is determined by facing in the direction the machine will travel when in use unless otherwise stated. NOTE: Indicates a special point of information which requires your attention. Important Notice Great Plains Manufacturing, Inc. provides this publication as is without warranty of any kind, either expressed or implied, while every precaution has been taken in the preparation of this manual, Great Plains Manufacturing, Inc. assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained herein. Great Plains Manufacturing, Inc. reserves the right to revise and improve its products as it sees fit. This publication describes the state of this product at the time of its publication, and may not reflect the product at all times in the future. Printed in the United States of America. For your convenience, record your Serial Number, Model Number and the Date Purchased in the space provided below. Have this information before you when calling a Great Plains Authorized Dealer. 2 CPH and CP1000 Coulter Command System M-B 9/21/05

5 Great Plains Mfg., Inc. Section 1 Assembly Instructions & Set-Up Section 1 Assembly Instructions & Set-Up Pre-Assembly Checklist Check All major components Fasteners that were shipped with the Coulter Command System. NOTE: Some of the hardware from the factory has been installed in the location where it will be used. Have a minimum of 2 people at hand while assembling the Coulter Command. Have a fork lift or loader along with chains and safety stands ready for the assembly task. Coulter Command Assembly Depth Sensing Wheel Refer to Figure 1 Install the coulter depth sensing wheel assembly (#1) to the front 4" x 4" coulter tool bar tube with the 5/8" X 6" long U-bolt (#2), lock washers (#3), and nuts (#4). The center of the coulter depth sensing wheel mount bracket should be positioned 2 1/4" to the right of the center of the hitch center beam. This dimension leaves about 2 3/ 4" clearance between the inside edge of the depth sensing tire and the edge of the 8" X 8" hitch center beam. If you are unsure where a fastener is used, use the parts section of this manual to identify it. Be sure the part gets used in the correct location Figure 1 Coulter Command Assembly 9/21/05 CPH and CP1000 Coulter Command System M-B 3

6 Section 1 Assembly Instructions & Set-Up Great Plains Mfg., Inc. Lift Switch Assembly Refer to Figure 2 1. Remove the 1/2" x 5 1/2" long bolts (#28) nuts, flat washers, and springs from the right hand transport cylinder brace and insert the switch mount (#4), and 1/2" lock washer (#15), under the head of the bolt. Position the mount and bolts back onto the brace and reassemble the nuts, flat washers and springs onto the brace. It is important that these support braces are properly assembled to support the transport cylinders without binding or placing undo side loads on the cylinders. Whenever the 5 1/2" support bolts are removed or the inner axle slide blocks become worn, assemble or adjust the cylinder support braces as follows. a. Assemble the 1/2" x 5 1/2" long full thread bolt (#28), 1/2" lock washer (#15), and the switch mount (#4) to the cylinder support brace (#22) bolted to the rod end cylinder casting. b. Screw on three 1/2" jam nuts (#23), and one 1/2" washer (#24) as shown in. Tighten the first jam nut against the cylinder support (#22) and run the other two jam nuts on, nearly all the way. c. With the cylinder properly installed, the support bolts (#28) should extend through the bracket (#27) on the outer slide tube when the base end and rod end pins are in place. d. Screw the outer 1/2" jam nut out until the 1/2" washer (#24) just touches the bracket on the outer slide tube. Do not put pressure on the cylinder by tightening the 1/2" jam nut. Once the washer touches the bracket, lock the outer 1/2" jam nut in place with the center 1/2" jam nut. e. Install spring (#25) and 1/2" nylock nut (#26). Tighten nut to compress spring to a 1 1/4" length. Use this procedure for each of the two support bolts on the transport cylinders. 2. Fasten the cylinder rod clamps (#3 & 6) to the clevis end of the cylinder rod with two 5/16" x 1 1/4" bolts (#16), lock washers (#18) and nuts (#19). The offset of the clamp must be toward the right hand side of the hitch as shown. 3. With the ramp of the push rod (#5), facing toward the center of the hitch, insert it between the ears of the cylinder rod clamp (#6), and bolt it in place with a 5/16" x 1 1/4" bolt (#16), two 5/16" USS flat washers (#17), and nylock nut (#20). It is recommended to bolt it through the lower-most hole in the push rod. Only run the nylock nut far enough onto the bolt to make full engagement of the nylon collar on the nut. Do not cinch it down. The bolt and push rod must be free to move in the slot of the clamp. 4. Slide the switch guide block (#2), over the push rod and fasten it to the mount with two 1/4" x 2" long bolts (#12), flat washer (#21), lock washers (#13), and nuts (#14). 5. Bolt the plunger activated switch (#7), to the mount with the spacer plate (#1), under it with two #10" x 1 1/2" long round head machine screws (#8), flat washers (#9), lock washers (#10), and nuts (#11). Slide the plunger switch in the slots of the mount so the plunger moves "in" about 1/8" when the cam on the push rod activates it and tighten the screws. Do not "bottom out" the plunger on the switch or it could be damaged. Wiring Harness 4 CPH and CP1000 Coulter Command System M-B 9/21/05

7 Great Plains Mfg., Inc. Section 1 Assembly Instructions & Set-Up Figure 2 Switch Assembly 9/21/05 CPH and CP1000 Coulter Command System M-B 5

8 Section 1 Assembly Instructions & Set-Up Great Plains Mfg., Inc. Refer to Figure 3 1. Route the 156" long two wire lead of the wiring harness (#1) through the 8" x 8" hitch tube and to the lift switch (#2) at the rear of the machine. Plug in the lift switch and support the cable with the cable tie mounts (#3) and releasable cable ties (#4) or strap the cable to the hydraulic hoses. 2. Plug the 4-Pin connector of the wiring harness to the sensor box on the depth sensing wheel and support the cable with the cable tie mounts (#3) and releasable cable ties (#4). 3. Route the 9-Pin connector through the spring hose loop and to the tractor hitch. This will plug into the 9- Pin Female lead from the control box extension cable (#5). 4. The other three short leads on the wiring harness will plug into the leads from the solenoids on the hydraulic control valves after they are installed Figure 3 Wiring Harness Assembly 6 CPH and CP1000 Coulter Command System M-B 9/21/05

9 Great Plains Mfg., Inc. Section 1 Assembly Instructions & Set-Up Tongue Cylinder Refer to Figure 4 1. Remove the stroke pointer gauge (#1) which was bolted to the rod end of the tongue cylinder and retorque the cylinder tie rod bolts to 95 FT-LBS. Remove the stroke pointer (#2) at the cylinder rod clevis and discard it. Refer to Figure 5 2. Turn the tongue cylinder with the rod end pointing forward and down, and with the ports turned up. Use the clevis pin (#17), flat washer (#18), and 1/4" cotter pin (#13) to replace the stroke pointer pin at what is now the base end of the cylinder. Use the existing clevis pin (#15) and hair pin cotter (#16) to connect the rod end to the tongue. 3. Remove the elbow fitting (#3) at the base end of the tongue cylinder and screw the 1/16" orifice plate (#9) into the base end port. Screw the orifice plate in far enough so it doesn't interfere with the elbow fitting and replace the fitting. IMPORTANT: Failure to install the orifice plate will not allow coulter command to operate correctly Figure 4 Tongue Cylinder Disassembly Hydraulic Control Valve Refer to Figure 5 1. Bolt the 3 1/2" x 3 1/2" x 5" hydraulic valve block (#2) to the top of the valve mount bracket (#13) with the 5/16" x 4" long bolts (#1), lock washers (#11), and hex nuts (#10). Position the valve block so the solenoids set above the middle of the top surface of the valve mount. 2. Bolt the 3" x 3 1/4" x 8" hydraulic valve block (#25) to the side of the valve mount bracket (#13) with the 5/16" x 3 1/2" long bolts (#24), lock washers (#11), and hex nuts (#10). Position the valve block so the four ports point away from the valve mount and the solenoid points up. 3. Bolt the valve mount assembly to the hitch with the 1/2" x 5 1/2" long bolt (#12), lock washer (#6), and hex nut (#5). Assemble the bolt through the pivot tube for the level link located just behind the tongue cylinder. Position the valve mount so the dual solenoids face toward the rear of the machine. 4. Assemble the 3/4" JIC elbows (#3) to the valve ports marked "P" and "T" of the top valve block. Assemble the straight 3/4" adaptors (#7) to the valve ports marked "A" and "B" of the top valve block. Assemble the straight 3/4" adaptors (#7) to the valve ports marked "V1" and V2" of the lower valve block. Assemble the 1/2" female pipe swivel elbows (#20) to the valve ports marked "C3" and "C4" of the lower valve block. Assemble the 9/16" elbows (#21) to the valve ports marked "C1" and "C2" of the lower block. Assemble the remaining two 9/16" elbows (#21) to the ports on the side of the 1 1/2" x 4" gauge wheel lift cylinder (#23). 5. Remove the 122" hoses (#4) from the tongue cylinder and assemble them to the elbows (#3) at ports "P" and "T" on the top hydraulic valve. Connect the 20" long hose (#8) between the port "B" of the top valve and the tongue cylinder base end fitting. Connect the 30" long hose (#14) between port "A" of the top valve and the tongue cylinder rod end fitting. Assemble the other two 122" hoses (#4), from the Coulter Command kit, to the adaptors (#7) at ports "V1" and "V2" on the lower hydraulic valve. Remove the quick couplers from the ends of the long transport lift hoses (#26) and assemble them to the ends of the 122" hoses (#4) from ports "V1" and "V2". Assemble the long transport lift hoses (#26) to the elbows (#20) at ports "C3" and "C4" on the lower hydraulic valve. The hose coming from the base end of the transport lift cylinders connects to the port marked "C3" and the hose coming form the rod end of the transport lift cylinders connects to the port marked "C4". Slide the excess hose from the long transport lift hoses into the 8" x 8" hitch main tube. Connect one of the 36" long 1/4" hoses (#22) between the port "C1" of the lower valve block and the 9/21/05 CPH and CP1000 Coulter Command System M-B 7

10 Section 1 Assembly Instructions & Set-Up Great Plains Mfg., Inc. 1 1/2" x 4" gauge wheel lift cylinder base and elbow fitting (#21). Connect the other 36" long 1/4" hose (#22) between the port "C2" of the lower valve block and the 1 1/2" x 4" gauge wheel lift cylinder rod end elbow fitting (#21). 6. Route the three 16" wiring harness leads with the weather-proof connectors, under the valve mount and connect each lead to its solenoid. The lead labeled "A" should be plugged into the solenoid marked "A", The lead labeled "B" should be plugged into the solenoid marked "B," and the lead labeled "S1" should be plugged into the solenoid marked "S1." Figure 5 Hydraulic Control Valve Assembly 8 CPH and CP1000 Coulter Command System M-B 9/21/05

11 Great Plains Mfg., Inc. Section 1 Assembly Instructions & Set-Up Control Box Refer to Figure 6 1. Mount the control box at a convenient location in the tractor cab. Connect the 12 extension cable to the 9-pin connector on the back of the control box and route the cable back toward the tractor drawbar area making sure it will not get kinked or pinched. 2. Connect the power cord to a good uninterrupted 12 volt power source on the tractor. Connecting directly to the battery is recommended. Plug the cord into the lead with the 2-Pin connector on the back of the control box. The polarity of the power supply is very important to prevent circuit damage. The white wire of the power cord must be connected to the "+" positive battery terminal and the black wire to the "-" negative battery terminal. With the depth sensing wheel in the max down position, the voltage potential between the lead containing the WHITE WIRE and the ground lead (BLACK WIRE) in the gauge wheel sensor box (#1) should be 5 volts DC plus or minus 1/4 volt. To adjust the gauge wheel sensor box linkage, loosen the 3/8" hex flange nut (#2) on the sensor spindle and rotate the circular disk (#3) until the voltage potential between the lead containing the WHITE WIRE and the ground lead (BLACK WIRE) (#1) is 5 volts DC plus or minus 1/4 volt. Rotating the circular disk counterclockwise increases voltage potential, and rotating the circular disk clockwise decreases the voltage potential. Once the correct voltage potential is achieved, tighten the 3/8" nut. Be careful not to rotate the circular disk as you tighten the nut. Replace the sensor box cover. Figure 6 Coulter Command Control Box Coulter Command Assembly Adjustments Refer to Figure Coulter command depth sensing wheel assemblies which are pre-assembled at the factory are pre-adjusted and should not require further adjustment. If the sensor box at the depth sensing wheel has been field installed, or if its linkage gets out of adjustment, it must be adjusted using one of the following two procedures: 1. The best and most accurate means of adjusting the linkage inside the sensor box makes use of a voltmeter which reads 0-12 volts DC. The Control Box in the tractor must be properly connected to a power source and the POWER switch must be ON. The TONGUE HYDRAULICS switch should be in the MANUAL mode. The wiring harness must be connected to the control box and the sensor box. The depth sensing wheel should be off the ground with the arm rotated down as far as its spring-loaded down-pressure link will allow. Remove the cover from the sensor box and inspect the internal linkage for proper assembly Figure 7 Sensor Box Adjustments 2. The second means of adjusting the linkage inside the sensor box involves measuring from the inside edge of the box to the left pivot of the formed roundbar link. The depth sensing wheel should be off the ground and rotated down as far as its spring-loaded down-pressure link will allow. Remove the cover from the sensor box and inspect the internal linkage for proper assembly. With the depth sensing wheel in the max down position, the pivot between the vertical flat-bar link and the formed round-bar link should be 15/16" from the front inside edge of the sensor box. With the sensor box linkage properly assembled, loosen the 3/8" hex flange nut on the sensor spindle and rotate the circular disk until the pivot between the vertical flat-bar link and the formed round-bar link is 15/16" + or - 1/16" from the front inside edge of the box. Be careful not to rotate the circular disk as you retighten the nut. Replace the sensor box cover. 3. Some models of the sensor box have a mark on the vertical flat-bar link which should line up with a mark on the link s slotted mount plate at the correct preset voltage. With the depth sensing wheel in the max down position, the marks should line up at a voltage of 5 volts DC + or - 1/4 volt. Aligning the marks is more 9/21/05 CPH and CP1000 Coulter Command System M-B 9

12 Section 2 Operating Instructions Great Plains Mfg., Inc. Section 2 Operating Instructions The Coulter Command couples a microprocessor with electro-hydraulics to provide a state-of-the-art system for maintaining coulter depth regardless of the terrain or soil type. It also provides coulter depth adjustment "From The Tractor Cab". A manual feature allows manual control of the front hydraulic tongue cylinder for hitching, unhitching, or making adjustments. To understand the Coulter Command system, one must be familiar with the functions of the hydraulics and the electronic controls. Load Sensing Hydraulics To operate Coulter Command, some tractors with loadsensing or constant-flow hydraulics require a bypass valve, Great Plains part number C. Contact your Great Plains dealer to order the bypass valve. NOTE: Failure to install a bypass valve on load-sensing tractors may cause major tractor damage. Consult your tractor dealer to verify if the bypass valve is needed. After installing the bypass valve, set valve as follows: Refer to Figure 8 1. Close bypass valve for no oil flow by turning knob (1) on valve clockwise Figure 8 Bypass Valve 2. Adjust flow-control valve for tractor to a maximum of 10 gpm. If you do not have a flowmeter, hook a standard 8-inch stroke, 4-inch bore cylinder to the circuit. At 10 gpm, the cylinder will take about 2.6 seconds to extend. 3. Engage tractor hydraulics for Coulter Command. 4. Using a pressure gauge, turn knob on bypass valve counterclockwise until pressure gauges reads 1800 psi. Lock bypass valve at this setting. Hydraulic Hook-Up & Function Tractors with closed-center hydraulic systems and variable displacement hydraulic pumps. (If you are not familiar with your tractor's hydraulics, consult your tractor dealer.) For tractors with closed-center hydraulics or pressure/ flow compensated hydraulics which are powered by a variable displacement hydraulic pump, turn the knurled control knob on the left side of the hydraulic valve completely clockwise and lock it in place with the circular lock disk. Do not apply any torque to the control knob after it bottoms out or valve damage may occur. Be sure the lock disk is snugged to prevent the control knob from vibrating loose in field operation. The tongue cylinder hydraulic circuit consists of the hoses from ports "P" and "T". Once the hydraulic valve is set for CLOSED CENTER operation, the Coulter Command tongue cylinder circuit requires live hydraulic power supplied to the port labeled "P". This is accomplished by pushing FORWARD on the tractor remote hydraulic lever and LOCKING IT OPEN in this position. On John Deere tractors equipped with SOUND- GUARD R Body you must use the LEVER LOCK CLIP John Deere Part No. R52667 to lock the lever in the forward position. See your tractor dealer for purchase and installation of this clip. On John Deere 7000 Series tractors, rotate valve detent selector to MOTOR POSITION to lock the lever in the forward position. On Case-IH Magnum tractors use the circuit designed for HYDRAULIC MOTOR CONTROL and lock the lever forward in the detent position. The detent pressure will probably have to be turned up to its maximum setting. DO NOT tie the hydraulic lever on past the detent position with a strap. This could shift the spool beyond its designed operating position and cause system damage. See your tractor dealer for hydraulic system details. On other model tractors use the circuit designed for HYDRAULIC MOTOR CONTROL and lock the lever forward in the detent position. The detent pressure will probably have to be turned up to its maximum setting or some other mechanical detent holder will have to be used to hold the lever forward. See your tractor dealer for the proper means of providing constant pressure/ flow to the tongue cylinder circuit. The Coulter Command hydraulic circuit requires a flow rate of 8 to 12 gallons per minute for efficient operation. On high flow rate tractors, the flow control on the tractor remote may have to be turned down so as not to exceed 12 gallons per minute. Flow rates higher than 12 gallons per minute will not damage the valve, but may cause poor Coulter Command performance. The remote tractor hydraulic lever will have to be locked in position to supply oil to the "P" port of the hydraulic control valve, regardless of whether you want to control the tongue hydraulic cylinder manually or automatically. 10 CPH and CP1000 Coulter Command System M-B 9/21/05

13 Great Plains Mfg., Inc. Section 2 Operating Instructions The CPH transport hydraulic circuit contains the hoses from the ports marked "V1" and "V2". This circuit must be connected to one of the remaining circuits for raising and lowering the transport system. This circuit must receive hydraulic pressure for raising the machine even while the hydraulic tongue circuit is "locked in" for continuous use. If the machine will not raise when the hydraulic tongue circuit is "locked in," consult your tractor dealer. You may need to run the transport hydraulic circuit on a "priority circuit" and the hydraulic tongue circuit on an alternate remote if the tractor hydraulics allows live hydraulic power to other remotes. If the "priority circuit" is the only circuit suitable for HYDRAULIC MOTOR CONTROL, then run the transport hydraulic circuit on the "priority circuit" and run the hydraulic tongue circuit on an alternate remote with the Coulter Command valve in the OPEN CENTER MODE. See "Tractors with open center hydraulic systems or fixed displacement hydraulic pumps" below. Tractors with open center hydraulic systems or fixed displacement hydraulic pumps. (If you are not familiar with your tractor's hydraulics, consult your tractor dealer.) For tractors with open-center hydraulics or on tractors with fixed displacement hydraulic pumps turn the knurled control knob on the left side of the hydraulic valve completely counterclockwise and lock it in place with the circular lock disk. Be sure the lock disk is snugged to prevent the control knob from vibrating loose in field operation. The CPH transport hydraulic circuit contains the hoses from the ports marked "V1" and "V2". This circuit must be connected to tractor's "priority circuit" to supply hydraulic pressure for raising the machine even while the hydraulic tongue circuit is "locked in" for continuous use. The "No.1" hydraulic circuit on most open-center tractors is the priority circuit. The tongue cylinder hydraulic circuit consists of the hoses from ports "P" and "T". Connect "P" and "T" to a circuit other than the "priority circuit". Once the hydraulic valve is set for OPEN CENTER operation, the Coulter Command tongue cylinder circuit requires live hydraulic power supplied to the port labeled "P". This is accomplished by pushing FORWARD on the tractor remote hydraulic lever and LOCKING IT OPEN in this position. The remote tractor hydraulic lever will have to be locked in position to supply oil to the "P" port of the hydraulic control valve, regardless of whether you want to control the tongue hydraulic cylinder manually or automatically. The Coulter Command tongue hydraulic circuit requires a flow rate of 8 to 12 gallons per minute for efficient operation. On high flow rate tractors, turn down the flow rate on the tractor remote, if possible, so as not to exceed 12 gallons per minute. Flow rates higher than 12 gallons per minute will increase the heat generated by the Coulter Command circuit when it circulates this high flow of oil. Refer to Figure 9 When operating the Coulter Command tongue hydraulic circuit in the OPEN CENTER mode, use poppet style quick couplers on the hoses connecting to the tractor. These quick couplers allow better flow through some tractor remotes and may produce less heat when circulating continuous hydraulic flow through them. Parker Hannifin offers the poppet style Pioneer quick coupler in their 8010 Series couplers. For tractors with Pioneer quick couplers use Pioneer P poppet style male couplers when operating in the OPEN CENTER mode. Poppet Style Ball Style Figure 9 Quick Couplers 9/21/05 CPH and CP1000 Coulter Command System M-B 11

14 Great Plains Mfg., Inc. Section 2 Operating Instructions Operation of Electronic Controls 1. Connect the power cord to a good uninterrupted 12 volt power source on the tractor. Connecting directly to the battery is recommended. Plug the cord into the lead with the 2-Pin connector on the back of the control box. The polarity of the power supply is very important to prevent circuit damage. The white wire of the power cord must be connected to the "+" positive battery terminal and the black wire to the "-" negative battery terminal. 2. With the remote tractor hydraulic lever locked in position to supply oil to the "P" port of the hydraulic control valve, turn the power switch on. a. For manual tongue hydraulic cylinder operation, simply move UP-DOWN switch. Moving the switch to the UP position extends the tongue cylinder, and moving the switch to the DOWN position retracts the tongue cylinder. If UP retracts the cylinder, then your remote hydraulic lever is not supplying oil to the "P" port of the hydraulic control valve, or the wires going to the solenoids A and B are reversed. By moving the UP-DOWN switch, the AUTO-MANUAL switch automatically switches to the MANUAL mode. If you are in the AUTO mode and you want to manually hold the tongue hydraulic cylinder in the position set by the automatic controls, just switch the AUTO-MANUAL switch to MANUAL. b. For automatic coulter depth control, simply switch the AUTO-MANUAL switch to AUTO and dial in the desired coulter depth you wish to maintain with the coulter depth control knob.! WARNING! Make sure all people, animals, and objects are clear of the coulter tool bar before switching the tongue hydraulics switch to the "auto" mode. Sudden automatic lowering of the coulter tool bar could cause serious personal injury or death. Turning the coulter depth switch clockwise makes the coulters run shallower. Turning the coulter depth switch counterclockwise makes the coulters run deeper. If the hitch is not moving or is on a hard surface, turning the coulter depth switch may not cause the tongue cylinder to retract to the desired position. The coulters may not penetrate to the desired depth until the hitch is moving. The coulter depth setting can always be changed "on-the-go" if you desire. With the AUTO-MANUAL switch in the AUTO mode, the coulters should maintain a constant depth regardless of terrain, soil type or speed. When lifting and turning in the field, the tongue cylinder will remain in its last automatically set mid stroke position. When the machine is lowered, the coulters will automatically return to their preset depth. Field Adjustments Lift Switch The switch at the transport lift cylinder of the Center Pivot Hitch determines the point in the lift cycle at which the automatic feature of the Coulter Command will be interrupted and the depth sensing gauge wheel will be lifted off the ground for turning around. Since the Center Pivot Hitch transport tires can be lowered during operation to provide flotation for the drill in soft soil conditions, coulter command should not be interrupted and the depth sensing gauge wheel should not be lifted until after the transport tires are lowered to the point where they are no longer used for system flotation. This is usually the point in the lift cycle when the drill openers are just being lifted out of the ground. A 3/8" x 3/8" square ramp attached to a sliding push rod on the right transport lift cylinder activates a plunger switch which causes the automatic feature of the Coulter Command to be interrupted and the depth sensing gauge wheel to be lifted off the ground for turning the Center Pivot Hitch around in the field. 12 CPH and CP1000 Coulter Command System M-B 9/21/05

15 Great Plains Mfg., Inc. Section 2 Operating Instructions 1. To adjust the lift switch timing, assemble the push rod to the cylinder rod clamp using one of the three adjustment holes at the bottom of the push rod. When tightening up the 5/16" nylock nut on the pivot bolt, DO NOT TIGHTEN IT DOWN TIGHT. The bolt and push rod must be free to move in the slot of the clamp. It is recommended to assemble the push rod through its lower-most hole. BE CAREFUL NOT TO "BOTTOM OUT" THE LIFT SWITCH PLUNGER when the plunger roller climbs the surface of the 3/8" square ramp. 2. To adjust the lift switch position, loosen the two #10 screws and slide it forward or backward in the slotted switch mount holes so the plunger moves "in" only about 1/8" when the cam activates it. DO NOT "BOT- TOM OUT" THE LIFT SWITCH PLUNGER.! WARNING! Shut the tractor off and put all hydraulic valve levers in neutral position before attempting to work on or crawl under the machine. Do not crawl under a raised machine without the transport lock pins securely in place. Sudden hydraulic activation or failure could cause serious injury or death. A properly adjusted lift switch allows the automatic coulter depth feature to be interrupted early in the lift cycle. This provided the fastest lift cycle times when turning around in the field. Operating the lift switch early in the lift cycle, also provides the maximum amount of time for the depth sensing gauge wheel cylinder to completely extend as the machine is lowered back to field position. It is important that the depth sensing gauge wheel cylinder always be fully extended when the Center Pivot Hitch is in field position to allow the depth sensing gauge wheel to float through its full range of motion. Speed Sensor The Coulter Command depth control system automatically compensates for changes in ground speed. A speed sensor and speed sensor plate mounted behind the coulter depth sensing wheel monitors the ground speed so the Coulter Command can adjust for it. This sensor should be in close proximity to the speed sensor plate. In general, it should never need adjustment. If the sensor does get moved, it should be adjusted against the speed sensor plate until is just touches the plate in the closest part of the rotation. A bent speed sensor plate should be straightened or replaced immediately. To adjust the speed sensor, loosen the two #6 screws on the sensor and slide it toward the speed sensor plate. Rotate the depth sensing wheel to the position where the speed sensor plate is closest to the sensor mount, and retighten the sensor mount screws where the sensor just touches the speed sensor plate. Hydraulic Valve All adjustable valve cartridges on the hydraulic valve blocks are preset at the manufacturer and should not be tampered with. Tampering with a cartridge valve could result in decreased lift cycle times for the Center Pivot Hitch. The only required adjustment is on the upper hydraulic control valve. This valve contains a rotary knob for setting the Coulter Command to be used with either OPEN CEN- TERED or CLOSED CENTERED tractor hydraulics. Check the owners manual of your tractor to determine what type of hydraulic system you have. Refer to Hydraulic Hook-Up & Function on page 10 of this manual for setting the hydraulic control valve for your style of tractor. Transport Cylinder Depth Channels When planting in soft soil conditions where sinking of your drill gauge wheels may be a problem, a cylinder stop channel package (GP# A) is available to allow your transport tires to run on the ground and assist in the supporting the drill and hitch weight. The A cylinder stop channel package contains two cylinder stop channels (one for each transport cylinder). Since the transport hydraulics is a master-slave system, it is only necessary to use one cylinder stop channel on the master lift cylinder on the left side of the Center Pivot Hitch. The other cylinder stop channel will not work on the slave cylinder located on the right side of the Center Pivot Hitch because the lift control switch for the Coulter Command mounts to that cylinder. Use only one cylinder stop channel on the master lift cylinder (left side) on Center Pivot Hitches equipped with Coulter Command. 9/21/05 CPH and CP1000 Coulter Command System M-B 13

16 Section 3 Troubleshooting Great Plains Mfg., Inc. Section 3 Troubleshooting Problem Possible Cause Solution Coulters move up when the down switch is operated and down when the up switch is operated. Automatic coulter depth control stops adjusting coulter depth. Turning the coulter depth knob does not set coulters deep enough. The hydraulic valve constantly pulses when you are stopped to refill or adjust something. Turning the coulter depth knob to "E" does not allow the coulters to run shallow enough. Depth sensing gauge wheel not lifting off the ground when Center Pivot Hitch is raised. Not supplying oil to the "P" port of the hydraulic valve. Solenoids wired backward or hoses from port "A" and port "B" reversed at the hydraulic valve. tongue hydraulics switch bumped to "manual" mode. Tractor remote hydraulic lever not locked for constant oil supply to valve. System variables out of adjustment If the tongue cylinder runs completely retracted, the tractor drawbar is to high. In extremely hard conditions with the machine standing the tongue cylinder pulses but does not retract. If the coulter depth knob is turned to "A" and the tongue cylinder will not completely retract when moving through the field then the internal sensor box linkage is not set correctly. If the sensor box linkage is properly adjusted and tongue cylinder constantly pulses while moving through the field but the front tongue cylinder will not retract, you do not have enough system weight. Hard soil conditions are hindering coulter penetration while stopped. The internal sensor box linkage is not set correctly. Coulter Command power is OFF or 12 volt power has been interrupted. The lift switch has become disconnected or the lift switch cam on the right transport lift cylinder has been damaged. Reverse the remote hydraulic lever in the tractor. Reverse the hoses at the quick couplers. Unplug solenoids and swap wire leads to them. Flip tongue hydraulics switch back to "auto" mode. Lock Tractor remote hydraulic lever with rubber tarp strap or other means. Turn power switch OFF and back on again so the system variables can reset. Then flip AUTO-MANUAL switch to AUTO. Use a straight drawbar or one which sweeps down. This is perfectly normal.the cylinder will not penetrate the coulters on a stationary machine in hard conditions.pull forward and check coulter depth on a moving machine. Adjust the sensor box internal linkage. See "Coulter Command Assembly Adjustments" on page 9. Add weights to the pull hitch frame weight brackets. Add tool bar weight brackets to coulter tool bars. Flip tongue hydraulics switch to "manual" mode while you are stopped or turn coulter command power "off". Pulsing does not hurt the valve, but can be annoying. Adjust the sensor box internal linkage. See "Coulter Command Assembly Adjustments" on page 9. Coulter Command must be connected and the power must be ON for the depth sensing gauge wheel to raise when the All Seeds Hitch is raised. The depth sensing gauge wheel should raise with the transport lift circuit with Coulter Command in either the AUTO or MANUAL mode is long as the power is ON. Inspect and adjust the lift switch and push rod cam. See "Lift Switch" under Section 2 "Operating Instructions" on page 12. Check cable connections on lift switch lead. 14 CPH and CP1000 Coulter Command System M-B 9/21/05

17 Great Plains Mfg., Inc. Section 3 Troubleshooting Problem Possible Cause Solution Depth sensing gauge wheel not lowering to the ground when Center Pivot Hitch is lowered, or depth sensing gauge wheel cylinder not fully extending when the machine is lowered. Coulter depth erratic or will not adjust when you turn the "DEPTH CONTROL" dial. The lift switch has become disconnected or the lift switch cam on the right transport lift cylinder has been damaged. Relief valve "M3" is set too low. Moisture present in the master control box. Inspect and adjust the lift switch and push rod cam. See "Lift Switch" under Section 2 "Operating Instructions" on page 12. Check cable connection on lift switch lead. Turn valve adjustment screw on top of valve "M3" one eighth turn clockwise. Valve "M3" is preset to relieve at 600 psi. Turning the adjustment screw one eighth turn clockwise increases the relief setting by approximately 75 psi.! CAUTION! Any attempt to set valve "M3" above 1200 psi could result in system malfunction. Setting the valve "M3" above 750 psi will slow down the lift cycle time. The master control box in the tractor must be kept dry. Moisture on the circuit board or in the control terminals will cause false readings. Hydraulic flow rates of more than 12 gallons per minute to the hydraulic control valve when operating in the CLOSED-CENTER mode. Turn down the flow rate on the tractor remote which is providing oil to the tongue hydraulic circuit. System generating excess heat when operating in the OPEN CENTER MODE. Inconsistent 12-volt power supply. The OPEN CENTER - CLOSED CEN- TER control knob is not turned completely counterclockwise. Connect the power cord directly to the battery. The Coulter Command electrical circuit must have a good uninterrupted power supply. Fluctuations in the power supply will cause inconsistent electrical readings. Turn the knurled control knob on the left side of the hydraulic valve completely counterclockwise and lock it in place with the circular lock disk. Ball style quick couplers may produce more heat when circulating continuous hydraulic flow through them. Use poppet style male quick couplers. For tractors with Pioneer quick couplers use Pioneer P poppet style male couplers when operating in the OPEN CENTER mode. See Figure 8, page 10. 9/21/05 CPH and CP1000 Coulter Command System M-B 15

18 Section 3 Troubleshooting Great Plains Mfg., Inc. Problem Possible Cause Solution Transport lift cylinders will not lift the Center Pivot Hitch for transport. OPEN-CENTER tractors with multiple sets of hydraulic outlets use the #1 circuit for priority flow which slows down or cuts off flow to the other circuits. This problem will occur if Coulter Command ports "P" and "T" are plugged into the #1 circuit. Connect transport lift circuit ports "V1" and "V2" to the #1 hydraulic circuit on OPEN- CENTER tractors. Ports "P" and "T" of the Coulter Command hydraulics should connect to another circuit other than the #1 circuit on OPEN-CENTER tractors. On CLOSED-CENTER tractors the Coulter Command should be connected to a circuit capable of HYDRAULIC MOTOR CONTROL for supplying constant pressure/flow to remote locations. If the machine will not raise when the hydraulic tongue circuit is "locked in," consult your tractor dealer. You may need to run the transport hydraulic circuit on a "priority circuit" and the hydraulic tongue circuit on an alternate remote if the tractor hydraulics allows live hydraulic power to other remotes. On CLOSED-CENTER tractors, if the "priority circuit" is the only circuit suitable for HYDRAULIC MOTOR CONTROL or supplying constant pressure/flow to remote locations, then run the transport hydraulic circuit on the "priority circuit" and run the hydraulic tongue circuit on an alternate remote with the Coulter Command valve in the OPEN CENTER MODE. See "Tractors with open center hydraulic systems or fixed displacement hydraulic pumps," page CPH and CP1000 Coulter Command System M-B 9/21/05

19 Great Plains Mfg., Inc. Section 3 Troubleshooting System Schematics If problems occur in the hydraulic or electric systems, refer to the schematics below and on page 18 to help locate the problem. Hydraulic Schematic /21/05 CPH and CP1000 Coulter Command System M-B 17

20 Section 3 Troubleshooting Great Plains Mfg., Inc. Electrical Schematic CPH and CP1000 Coulter Command System M-B 9/21/05

21 Great Plains Mfg., Inc. Section 4 Maintenance and Lubrication Section 4 Maintenance and Lubrication Maintenance The Coulter Command is relatively maintenance free. The switches, sensors, and linkages should not need any routine adjustment unless they are moved or damaged. Lubrication Lubrication Symbols 50 Lubrication is required every 50 hours of operation. 10 Lubrication is required every 10 hours of operation. As Required Use a multipurpose spray lube. Use as required. Do not over lubricate. Seasonally Lubrication is required 2-3 Years Axle Bearings Repack Type of Lubrication: Wheel Bearing Grease /21/05 CPH and CP1000 Coulter Command System M-B 19

22 Section 5 Parts Great Plains Mfg., Inc. Section 5 Parts Coulter Depth Control Hydraulics CPH and CP1000 Coulter Command System M-B 9/21/05

23 Section 5 Parts Ref. Part No. Part Description C Bolt, Hex Head 5/16"-18 x 4" C Valve, Electronic Depth Control C Fitting, Hydraulic Elbow 3/4" JIC Male x 3/4" O-Ring Male C Hose, Hydraulic 1/2" R1 x 122" Long x 1/2" NPT Male x 3/4" JIC Female C Nut, Hex 1/2" C Washer, Lock Spring 1/2" C Fitting, Hydraulic Adaptor 3/4" O-Ring Male x 3/4" JIC Male C Hose, Hydraulic 1/2" R2 x 020 3/4" JIC Female C Orifice Plate /16" x 3/4" C Nut, Hex 5/16" C Washer, Lock Spring 5/16" C Bolt, Hex Head 1/2"-13 x 5 1/2" Long D Hydraulic Valve Mount C Hose, Hydraulic 1/2" R2 x 030 3/4" JIC Female C Pin Clevis 1" x 2 3/4" Usable Long C Pin Hair Cotter H Cylinder Pin C Washer, Flat 1" SAE C Pin, Cotter 1/4" x 2" Long C Hydraulic Fitting, Elbow 1/2" NPT Female x 3/4" O-Ring Male C Hydraulic Fitting, Elbow 9/16" JIC Male x 9/16" O-Ring Male C Hydraulic Hose 1/4" R2 x 036 9/16" JIC Female C Cylinder 1.50" x 4.0" x 0.75" Weld 1" Pin C Bolt, Hex Head 5/16"-18 x 3 1/2" Long C Lift Circuit Manifold 9/21/05 Great Plains Mfg., Inc. CPH and CP1000 Coulter Command System M-B -21

24 Section 5 Parts Coulter Command Electronics CPH and CP1000 Coulter Command System M-B Great Plains Mfg., Inc. 9/21/05

25 Section 5 Parts Ref. Part No. Part Description C Control Box C Power Cord C Control Box Cable C Wire Harness 9/21/05 Great Plains Mfg., Inc. CPH and CP1000 Coulter Command System M-B -23