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Valley Center Pivot 7000 Series Owner's Manual

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Center Pivot
7000, 8000, 8120 Series
Owner's Manual
0994464_M
© 2019 Valmont Industries, Inc., Valley, NE 68064 USA. All rights reserved.
www.valleyirrigation.com

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Do you have a question about the Center Pivot 7000 Series and is the answer not in the manual?

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anna orsi
January 31, 2025

differenza tra pivot 7000 e 8000

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1 comments:
Mr. Anderson
February 10, 2025

The Valley Center Pivot 7000 Series is designed for less-demanding terrain and offers reliability, durability, and cost-effectiveness, making it a good investment for various field conditions. It is second only to the Valley 8000 Series in overall performance. The 8000 Series is the industry-leading option, providing higher reliability and durability than the 7000 Series. The 7000 Series is available with either the patented Valley gearbox or the VS-7000 gearbox.

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Summary of Contents for Valley Center Pivot 7000 Series

  • Page 1: Center Pivot 7000, 8000, 8120 Series Owner's Manual

    Center Pivot 7000, 8000, 8120 Series Owner's Manual 0994464_M © 2019 Valmont Industries, Inc., Valley, NE 68064 USA. All rights reserved. www.valleyirrigation.com...
  • Page 2 2 Center Pivot 7000, 8000, 8120 Series...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS CENTER PIVOT 7000, 8000, 8120 SERIES OWNER'S MANUAL ..............1 TABLE OF CONTENTS ............................. 3 SERIES SPAN IDENTIFICATION ........................5 EC DECLARATION OF CONFORMITY......................6 ELECTRICAL SAFETY STATEMENT ....................... 7 ABOUT THIS MANUAL ............................. 7 ANCILLARY EQUIPMENT WARRANTY ......................7 SAFETY ................................
  • Page 4 TABLE OF CONTENTS MAINTENANCE ............................... 63 Safety ....................................63 Wheel Gearbox 7000 Series..............................64 Center Drive Gearmotor 7000 Series ..........................65 Wheel Gearbox 8000/8120 Series.............................66 Center Drive Gearmotors 8000/8120 Series ........................67 Helical Gearmotor ................................67 Worm Gearmotor ................................67 Tire and Wheel ..................................68 Towable Hub Lubrication ..............................68 Wheel Lug Nut Torque ..............................68 Tire Pressures ................................68 Barricade ..................................69...

  • Page 5: Series Span Identification

    SERIES SPAN IDENTIFICATION 7000 7000 8000 8000 8120 (International Only) 5 ft (1524 mm) 5 ft (1524 mm) 8120 (INTERNATIONAL ONLY) Pipes PIPES Center Pivot 7000, 8000, 8120 Series 5...

  • Page 6: Ec Declaration Of Conformity

    Nordring 4 45894 Gelsenkirchen Germany +49(151)16716790 Ron Pollak Date of Issue: December 17, 2018 Senior Electrical Engineer Place of Issue: Valley, NE 68064 Valmont Industries, Inc. 6 Center Pivot 7000, 8000, 8120 Series...

  • Page 7: Electrical Safety Statement

    • The resistance between the irrigation machine and the generator must be substantially below 80 ohms. About This Manual Information contained in this manual applies to Valley Center Pivot and its use with the 7000, 8000 and 8120 Series of spans.

  • Page 8: Safety

    SAFETY Recognize Safety Information This irrigation equipment may be powered by high voltage which can be extremely dangerous if used improp- erly. For maximum safety and optimum performance of the machine, all owner’s operator’s and maintenance personnel must read and understand the owner/operator manual(s), all safety messages in this manual and safety signs/decals on the machine before operating this equipment.

  • Page 9: Use Of Personal Protective Equipment

    SAFETY Use of Personal Protective Equipment • People working in areas where there are potential electrical hazards must use, personal protective equipment that is appropriate for the specific parts of the body to be protected and for the work to be performed. Refer to U.S.

  • Page 10: Minimum Working Clearance

    Lighting. Available here: www.faa.gov/regulations_policies/advisory_circulars • For irrigation machines near private or unregulated airfields, including farm-based airstrips, Valley strongly recommends complying with the same standards and requirements as Civil airports as shown in Part 77. • Regulations vary by country, contact your local aviation authority for guidance.

  • Page 11: Overhead Power Lines

    SAFETY Overhead Power Lines Assembling, towing or transporting irrigation machine components such as but not limited to the pivot point, linear cart, span/drive unit assemblies, overhangs and/or corner assemblies underneath or near power lines is extremely dangerous because of the risk of electrocution. Operating equipment that elevates irrigation machine components, such as but not limited to an aerial lift or crane, near power lines is extremely dangerous because of the risk of electrocution.

  • Page 12: Minimal Lockout / Tagout Procedure

    SAFETY Minimal Lockout / Tagout Procedure The following procedure establishes the minimum requirements for the lockout of energy isolating devices whenever maintenance or servicing is done on machines or equipment. It is used to ensure that the machine or equipment is stopped, isolated from all potentially hazardous energy sources and locked out before person- nel perform any servicing or maintenance where the unexpectedly energized or start-up of the machine or equipment or release of stored energy could cause injury.

  • Page 13: Operate Safely

    Operate Safely Valley Irrigation machines are designed with safety in mind. However, if this machine is operated incorrectly, it may pose a safety threat to the operator. A good safety program is much like a chain, it is only as strong as its weakest link.
  • Page 14 Call a qualified electrician or an nect after locking. See Figure 14-2. authorized Valley dealer immediately. The tag should reveal the name of a person to con- Circumstances which may cause you to suspect haz- tact before restoring power to the machine.
  • Page 15 SAFETY Operate Safely CAUTION WARNING AVOID CHEMICALS DO NOT OVERSIZE FUSES Fuses are sized for the protection of a specific ma- Avoid exposure to sprinkler spray while chemicals chine. are being injected into the water. Read EPA Label Improvement Program (PR Notice 87-1) and all in- Be certain you have the proper fuse sizes in place structions for chemical applications.
  • Page 16 If an end gun is watering a roadway, immediately Figure 16-1 1. Physical Barricade discontinue use and adjust the shutoff setting or call your Valley dealer to repair the end gun shut off mechanism. CAUTION PROPER USE OF THE SAFETY OVERRIDE...

  • Page 17: Safety Decals

    SAFETY Safety Decals These Danger, Warning, and Caution decals appear in various locations on a Valley irrigation machine. You MUST familiarize yourself and other operators with these safety decals. For replacement of any decal, contact your local Valley dealer. Center Pivot 7000, 8000, 8120 Series 17...
  • Page 18 SAFETY Safety Decals WARNING WARNING WARNING WARNING 18 Center Pivot 7000, 8000, 8120 Series...
  • Page 19 SAFETY Safety Decals WARNING Improper installation of this motor may result in fire, explosion, electrical shock or other personal injuries. Read operating instructions Disconnect power before maintenance. Open all circuits before removing conduit box cover. Be sure motor is properly grounded per local and national codes.
  • Page 20 SAFETY Safety Decals DANGER CAUTION SAFETY SWITCH 480 VOLTS MUST BE IN THE "OFF" POSITION WHEN HANDLING Location: Remote public power installations. PLUG OR CABLE Location: Remote public power package. CAUTION CAUTION INSPECT CABLE REGULARLY THIS MACHINE MAY START TO ENSURE THAT IT IS IN AUTOMATICALLY.

  • Page 21: Overview

    OVERVIEW Pivot The center pivot is the structure which the entire ma- chine rotates around. The water entry point for the machine is at the riser pipe. See Figure 21-1. The legs of a conventional center pivot are bolted to a concrete foundation. Some pivots are towable with a pivot point that is equipped with wheels so it can easily be moved from one field to the other.

  • Page 22: Spans

    OVERVIEW Spans Water is transported to the irrigation machine through an underground pipe line. The water is then transported across the field through a pipeline. The pipeline is made up of a series of spans which are connected together. Each span also consists of a drive tower which moves the pipeline across the field. See Figure 22-1. A span consists of a water pipeline supported with a bowstring under truss design.

  • Page 23: Overhang (Option)

    OVERVIEW Overhang (Option) Typically an overhang is attached to the end of the span pipe and used for irrigation beyond the span/ drive unit. Support ears and cables provide support for the overhang. See Figure 23-1. End Gun (Option) Typically an end gun is attached at the end of the Figure 23-1 1.

  • Page 24: Water Application

    OVERVIEW Water Application A sprinkler chart provides the operator with informa- tion about water application depths and pass times at different percent timer settings. Water is applied to the field through the sprinklers. Sprinklers can be mounted on top of the pipeline or on drop tubes that hang below the pipeline.

  • Page 25: Alignment

    OVERVIEW Alignment There are 3 types of span alignments available, Standard, Modified and Pivot floating alignment. See Figures 25-1, 25-2 and 25-3. The type of alignment used varies depending on the length of machine, type of field and other application requirements.

  • Page 26: Over Watering Timer

    1. Over Watering Timer (Option) The Stop In Slot option stops the machine at a pre- determined field location. The Valley Classic and ClassicPlus Control Panel utilizes the same control box as used for the end gun shut off. The stop in slot micro switch is located on the outside of the ring.

  • Page 27: End Gun And Stop In Slot Control - Electronic (Option)

    OVERVIEW End Gun and Stop In Slot Control - Electronic (Option) The Valley Control Panels use one of the following options: encoder, a resolver or Valley GPS position to determine the position of the pivot in the field. The field position readings are used to turn the end gun on and off or to stop at the stop in slot position.

  • Page 28: Drive Unit Mounted End Of Field Stop/Auto Reverse (Option)

    OVERVIEW Drive Unit Mounted End of Field Stop/Auto Reverse (Option) The drive unit mounted end of field stop is used with both the end of field stop and end of field auto re- verse option. See Figure 28-1. This mechanism will stop the machine when the ac- tuator arm contacts the barricade.

  • Page 29: Pivot Mounted Auto Reverse (Option)

    OVERVIEW Pivot Mounted Auto Reverse (Option) The pivot mounted auto reverse option is shown for the Standard Center Pivot in Figure 29-1 and the 2 Wheel E-Z Tow Pivot in Figure 29-2. Two heavy duty limit switches are mounted as shown in the illustrations.
  • Page 30 OVERVIEW 30 Center Pivot 7000, 8000, 8120 Series...

  • Page 31: Operation

    OPERATION Machine Operation For proper operation of the Center Pivot machine, the Control Panel Owner’s Manual and Center Pivot Owner’s Manual must be used together. The Control Panel Owner’s Manual includes safety guidelines and explains the basic operation of the control panel itself, including how to start/stop the machine, change running direction and change water application amounts.

  • Page 32: Towable Pivots

    OPERATION Machine Operation Towable Pivots There are four towable pivot options for 8000 and 8120 series spans. The 7000 series spans are not towable. See Figure 32-1. • Skid Tow Pivot • 2 Wheel E-Z Tow Pivot • 4 Wheel E-Z Tow Pivot With Fixed Wheels Option 4 Wheel EZ Tow Overall Assembled View Functional Area...

  • Page 33: Towing Option

    OPERATION Towing Option Preparing Drive Units for Towing This topic provides instruction on the preparation of the drive units for towing. REMEMBER: SAFETY FIRST – Operate accord- ing to the following procedures when towing and read all safety precautions in this manual. 1.
  • Page 34 OPERATION Towing Option Preparing Drive Units for Towing (Continued) 4. Loosen the clamps securing U- joint shields in position. Slide all four U-joint shields away from the gearboxes. 5. Remove lynch pin from retainer clip, then open retainer clip and pull the torque pin from axle torque arm behind gearbox hub and hub torque pin receiver.
  • Page 35 OPERATION Towing Option Preparing Drive Units for Towing (Continued) 8. Lift the carrier spring and release the tow link bar from the tow link carrier. See Figure 35-1. 9. Position steering arm in tow link bar yoke, align holes, then attach steering arm to tow link bar with torque pin.
  • Page 36 OPERATION Towing Option 36 Center Pivot 7000, 8000, 8120 Series...

  • Page 37: Preparing Drive Units For Operation

    OPERATION Towing Option Preparing Drive Units for Operation This topic provides instruction on the preparation of the drive units for operation after towing. REMEMBER: SAFETY FIRST – Operate accord- ing to the following procedures when towing and read all safety precautions in this manual. 1.
  • Page 38 OPERATION Towing Option Preparing Machine for Operation (continued) 5. Rotate tow link bar into the tow link carrier until the carrier spring latches into the hole in tow link bar. See Figure 38-1. 6. Push the tire toward the operating position while aligning the drive shaft U-joint half and flex joint chamfered corners with the wheel gearbox U- joint half.
  • Page 39 OPERATION Towing Option Preparing Machine for Operation (continued) 8. Slide the U-joint shield over the U-joint and po- sition approximately 1/4 in (6.3 mm) away from touching the gearbox. Secure the U-joint shield to the drive shaft shield with a clamp. See Figure 39-1.
  • Page 40 OPERATION Towing Option 40 Center Pivot 7000, 8000, 8120 Series...

  • Page 41: Towing The Skid Tow Pivot

    OPERATION Towing Option Towing the Skid Tow Pivot This topic provides instruction on the preparation and towing of the skid tow pivot. REMEMBER: SAFETY FIRST - Operate according to the following procedures when towing and read all safety information in this manual. 1.
  • Page 42 OPERATION Towing Option Towing The Skid Tow Pivot 5. With the service disconnect in the OFF position, unplug the power plug from the receptacle. See Figure 42-1. 6. Coil the cord and secure to pivot structure so that it does not drag on the ground while towing the pivot.
  • Page 43 OPERATION Towing Option Towing The Skid Tow Pivot (Continued) Attaching Forward Tow Cable 11. Install the tow cable attachment bracket on the span pipe above the drive unit. See Figure 43-1. 12. On one end of 1/2 in (12.7 mm) tow cable, extend 2 ft (610 mm) of cable through one of the eye bolts on turnbuckle, then clamp tow cable together with three 1/2 in (12.7 mm) cable clamps.
  • Page 44 OPERATION Towing Option Towing The Skid Tow Pivot (Continued) 17. After the pivot and drive unit have been prepared for towing, connect the tow cable to the towing unit with the tow cable clevis. See Figure 44-1. CAUTION TO REDUCE THE POSSIBILITY OF STRUC- TURAL DAMAGE: •...
  • Page 45 RECT. SHOULD ANY OF THE DRIVE UNITS FAIL TO OPERATE OR NOT TRAVEL IN THE DIRECTION SELECTED AT ANY OF THE PIVOT POINTS, IMMEDIATELY PRESS THE “STOP” BUTTON AND TURN THE CONTROL PANEL DISCONNECT “OFF.” CALL YOUR VALLEY DEALER. Center Pivot 7000, 8000, 8120 Series 45...
  • Page 46 OPERATION Towing Option 46 Center Pivot 7000, 8000, 8120 Series...

  • Page 47: Towing The 2 Wheel E-Z Tow Pivot

    OPERATION Towing Option Towing the 2 Wheel E-Z Tow Pivot This topic provides instruction on the preparation and towing of the 2 wheel E-Z Tow pivot. REMEMBER: SAFETY FIRST - Operate according to the following procedures when towing and read all safety information in this manual. 1.
  • Page 48 OPERATION Towing Option Towing the 2 Wheel E-Z Tow Pivot (Continued) 5. With the disconnect in the OFF position, unplug the power plug and then unplug the pump control plug from the receptacle. See Figure 48-1. 6. Wrap the cords around the tongue mounting channels and place the ends of the cords into the receptacle holder bracket.
  • Page 49 OPERATION Towing Option Towing the 2 Wheel E-Z Tow Pivot (Continued) 8. Disconnect the water supply line from riser pipe. See Figure 49-1. 9. Release and lower the tongue. 10. Remove lynch pin from each torque pin, then remove each torque pin and disconnect the tow link bars from the gearbox mount steering arms.
  • Page 50 OPERATION Towing Option Towing the 2 Wheel E-Z Tow Pivot (Continued) 12. Attach the tongue to the towing unit. See Figure 50-1. 13. Use the winch to raise the riser pipe out of the anchor pipe. I may be necessary to pry the riser from the anchor pipe.
  • Page 51 OPERATION Towing Option Towing the 2 Wheel E-Z Tow Pivot (Continued) 17. Align and lower the riser pipe into the anchor pipe. Be sure the slotted ears on the riser pipe align with the studs in the pivot pad. In addition, the slotted ear on the Stop-In-Slot and End Gun Shutoff bracket must be positioned on the “T”...
  • Page 52 DIRECTION SELECTED AT ANY OF THE PIVOT POINTS, IMMEDIATELY PRESS THE “STOP” BUTTON AND TURN THE CONTROL PANEL DISCONNECT “OFF.” CALL YOUR VALLEY DEALER. Figure 52-3 1. Power and Pump Control Plugs 2. Receptacles 52 Center Pivot 7000, 8000, 8120 Series...

  • Page 53: Towing The 4 Wheel E-Z Tow Pivot - Fixed Tire

    OPERATION Towing Option Towing the 4 Wheel E-Z Tow Pivot - Fixed Tire This topic provides instruction on the preparation and towing of the 4 wheel E-Z Tow pivot with the standard fixed wheel option. The standard fixed tire option allows the pivot to be towed in only two directions by moving the tongue 180 degrees from one side of the pivot to the other.
  • Page 54 OPERATION Towing Option Towing the 4 Wheel E-Z Tow Pivot - Fixed Tire (Continued) 5. With the service disconnect in the OFF position, unplug the power plug from the receptacle. See Figure 54-1. 6. Coil the cord and secure to pivot structure so that it does not drag on the ground while towing the pivot.
  • Page 55 OPERATION Towing Option Towing the 4 Wheel E-Z Tow Pivot - Fixed Tire (Continued) 11. Hook tongue to the towing unit. See Figure 55-1. 12. After the pivot and drive units have been pre- pared for towing, begin towing the machine in a slow, gradual manner.
  • Page 56 RECT. SHOULD ANY OF THE DRIVE UNITS FAIL TO OPERATE OR NOT TRAVEL IN THE DIRECTION SELECTED AT ANY OF THE PIVOT POINTS, IMMEDIATELY PRESS THE “STOP” BUTTON AND TURN THE CONTROL PANEL DISCONNECT “OFF.” CALL YOUR VALLEY DEALER. 56 Center Pivot 7000, 8000, 8120 Series...

  • Page 57: Towing The 4 Wheel E-Z Tow Pivot - Swivel Tire

    OPERATION Towing Option Towing the 4 Wheel E-Z Tow Pivot - Swivel Tire This topic provides instruction on the preparation and towing of the 4 wheel E-Z Tow pivot with the swivel wheel option. The swivel tire option allows the tires to be turned so the pivot can be rotated to any towing direction that is in line with the span.
  • Page 58 OPERATION Towing Option Towing the 4 Wheel E-Z Tow Pivot - Swivel Tire (Continued) 5. With the service disconnect in the OFF position, unplug the power plug from the receptacle. See Figure 58-1. 6. Coil the cord and secure to pivot structure so that it does not drag on the ground while towing the pivot.
  • Page 59 OPERATION Towing Option Towing the 4 Wheel E-Z Tow Pivot - Swivel Tire (Continued) 11. Remove hardware securing wheel in the tow position. See Figure 59-1. 12. Insert a bar in the swivel tube and turn the wheel to the pivot swivel position. See Figure 59-1. 13.
  • Page 60 OPERATION Towing Option Towing the 4 Wheel E-Z Tow Pivot - Swivel Tire (Continued) 18. After the pivot and drive units have been pre- pared for towing, hook tongue to the towing unit. See Figure 60-1. 19. Begin towing the machine in a slow, gradual manner.
  • Page 61 UNITS FAIL TO OPERATE OR NOT TRAVEL IN THE DIRECTION SELECTED AT ANY OF THE PIVOT POINTS, IMMEDIATELY PRESS THE “STOP” BUTTON AND TURN THE CONTROL PANEL DISCONNECT “OFF.” CALL YOUR VALLEY DEALER. Center Pivot 7000, 8000, 8120 Series 61...
  • Page 62 OPERATION Towing Option 62 Center Pivot 7000, 8000, 8120 Series...

  • Page 63: Maintenance

    • ALWAYS DISCONNECT ELECTRICAL POWER BEFORE SERVICING OR PERFORMING MAINTE- NANCE TO THE MACHINE. • TESTING AND TROUBLESHOOTING SHOULD BE PERFORMED ONLY BY AN AUTHORIZED VALLEY DEALER. • ALWAYS REPLACE ANY GUARDS OR SHIELDS THAT ARE REMOVED FOR PERFORMING MAINTE- NANCE.

  • Page 64: Wheel Gearbox 7000 Series

    200˚ F (94˚ C) without alarm. 2. Drain Plug 4. Fill the wheel gearbox with Valley Gear Lube. The capacity is approximately 3.9 quarts (3.7 liters). • Fill gearbox to the top of worm gear shaft or to the bottom of the fill plug hole.

  • Page 65: Center Drive Gearmotor 7000 Series

    See Figure 65-1. NOTE 1-7/8 in (48 mm) • Use only Valley Gear Lube. Other brands of lubricants may contain corrosive extreme pressure additives, which may damage bronze worm gears. • The oil in worm gear cases may reach tem- peratures up to 200˚...

  • Page 66: Wheel Gearbox 8000/8120 Series

    • The oil in worm gear cases may reach tem- peratures up to 200˚ F (94˚ C) without alarm. 4. Fill the wheel gearbox with Valley Gear Lube. The capacity is approximately 3.9 quarts (3.7 liters). • Fill gearbox to the top of worm gear shaft or re- Figure 66-2 1.

  • Page 67: Center Drive Gearmotors 8000/8120 Series

    2. Fill the gearbox 1-7/8 in (48 mm) from the bot- tom of fill plug hole with Valley Gear Lube. The capacity of the gearbox is approximately 44 oz Figure 67-1 1. Drain Plug 3.

  • Page 68: Tire And Wheel

    MAINTENANCE Tire and Wheel Towable Hub Lubrication The towable hubs should be greased at least once a year with water resistant lithium based grease. This must be done whether the pivot has been towed or not during the season. The grease fitting is located on the end of the hub. Refill the bearing cavity using a grease gun.

  • Page 69: Barricade

    MAINTENANCE Barricade Maintain the barricade structure and area. Inspect the barricade structure for failure and tighten any loose hardware completely. Ensure that the actuator arm contacts the tripping structure. Under certain conditions, soil may build up in the wheel track resulting in a ramp effect. This may allow the actuator arm to go over the top of the struc- ture which trips the actuator arm.

  • Page 70: Miscellaneous

    3. Bonding Ground Wire Check the condition of all electrical and grounding conductors regularly. See Figure 70-2. Have your local Valley dealer repair or replace broken conduit and electrical wire that has worn or cracked insulation. Always be sure the ground wire is securely attached to both the ground rod and the ground lug on the pivot.

  • Page 71: Wheel E-Z Tow Pivot Swivel Bearing Lubrication

    MAINTENANCE Miscellaneous 2 Wheel E-Z Tow Pivot Swivel Bearing Lubrication Lubricate the 2 wheel E-Z Tow pivot swivel bear- ings and rollers with Water Resistant Lithium based grease every 5 to 7 revolutions. 1. Lubricate three (3) upper swivel rollers. See Fig- ure 71-1.

  • Page 72: Standard And 4 Wheel E-Z Tow Pivot

    MAINTENANCE Miscellaneous Standard and 4 Wheel E-Z Tow Pivot Pivot Mounted Auto Reverse Adjustment The end gun shut off locations are adjusted by cut- ting and splicing the rubber ramps as illustrated in Figure 72-1. The ramps are then placed on the inside of the ring as illustrated in Figure 72-2.

  • Page 73: Mechanical Stop In Slot Adjustment

    MAINTENANCE Miscellaneous Standard and 4 Wheel E-Z Tow Pivot Mechanical Stop In Slot Adjustment The stop in slot shut off location is set by adjusting the ramp as illustrated in Figure 73-1. The ramp is placed on the outside of the ring as il- lustrated in Figure 73-1.

  • Page 74: Pivot Mounted Auto Reverse Adjustment

    MAINTENANCE Miscellaneous Standard and 4 Wheel E-Z Tow Pivot Pivot Mounted Auto Reverse Adjustment Two heavy duty limit switches are mounted by a bracket attached to the split ring. The switches re- main stationary with the riser pipe. See Figure 74-1. The actuator bolt is mounted to roller plate.

  • Page 75: Wheel E-Z Tow Pivot

    MAINTENANCE Miscellaneous 2 Wheel E-Z Tow Pivot Mechanical End Gun Ramp Adjustment The end gun shut off locations are adjusted by cut- ting and splicing the rubber ramps as illustrated in Figure 75-1. The ramps are then placed on the inside of the ring as illustrated in Figure 75-1.

  • Page 76: Mechanical Stop In Slot Adjustment

    MAINTENANCE Miscellaneous 2 Wheel E-Z Tow Pivot Mechanical Stop In Slot Adjustment The stop in slot shut off location is set by adjusting the ramp as illustrated in Figure 76-1. The ramp is placed on the outside of the ring as il- lustrated in Figure 76-1.

  • Page 77: Pivot Mounted Auto Reverse Adjustment

    MAINTENANCE Miscellaneous 2 Wheel E-Z Tow Pivot Actuator Bolt Adjustment Pivot Mounted Auto Reverse Adjustment Position each of the actuator brackets in the appropri- Two heavy duty limit switches are mounted by a ate position on the split ring. Adjust the actuator bolts bracket attached to the roller plate.

  • Page 78: Pivot Mounted Auto Reverse Example Settings

    MAINTENANCE Miscellaneous 2 Wheel E-Z Tow Pivot Pivot Mounted Auto Reverse Example Settings EXAMPLE #1 - 140° Center Pivot Operation EXAMPLE #2 - 235° Center Pivot Operation See Detail “A” See Detail “B” See Detail “B” 140° 235° Pivot Pivot Position End Gun Position...

  • Page 79: End Gun Arc Setting Example

    IMPORTANT: This is an example only. Refer to the sprinkler chart for each pivot to determine the correct end gun arc settings. These settings should initially be set by your Valley Dealer at time of installation and start up. Figure 79-2 1.

  • Page 80: Machine Alignment

    MAINTENANCE Machine Alignment The machine is initially aligned when it is installed. However, for various reasons it may become neces- sary to adjust the alignment. WARNING • DO NOT ALIGN THE MACHINE WHEN THERE ARE ESTABLISHED WHEEL TRACKS. WHEEL TRACKS MUST BE REMOVED BEFORE ALIGNING THE MACHINE TO REDUCE THE POSSIBILITY OF STRUCTURAL DAMAGE.

  • Page 81: Tower Alignment - Three Tower Method

    MAINTENANCE Machine Alignment Tower Alignment - Three Tower Method The three tower alignment method is used to identify towers that start or stop in a position that is either leading or trailing in relationship to the other two tow- ers. This procedure works best with two people: •...

  • Page 82: Standard Alignment Adjustment

    MAINTENANCE Machine Alignment Standard Alignment Adjustment 1. Loosen the hardware securing control bar to the switch pivot arm. See Figures 82-1 and 82-2. 2. Adjust the jam nuts clockwise or counter-clock- wise no more than 1/4 of a turn at one time. See Figures 82-1 and 82-2, and the adjustment chart below.

  • Page 83: Modified Alignment Adjustment

    MAINTENANCE Machine Alignment Modified Alignment Adjustment When a machine is equipped with modified align- ment the tower box is located on the side of the tower with a mechanical linkage between the tower box and the control bar. NOTE • All adjustments shown are made from the tower box side of drive unit.

  • Page 84: Pivot Floating Alignment Adjustment

    MAINTENANCE Machine Alignment Pivot Floating Alignment Adjustment When a machine is equipped with pivot floating align- ment the tower box is located on the yoke and tower box support with a mechanical linkage between the tower box switch pivot arm and the yoke control rod. See Figures 84-1 and 84-2.

  • Page 85: Setting Alignment Cable Tension

    MAINTENANCE Machine Alignment Setting Alignment Cable Tension 4. Set alignment cable tension. Use a truss spreader part number 9360055 to check the alignment cable ten- sion. The truss spreader is 115 in (292 cm) long and weighs 23.4 lb (10.6 kg). See Figure 85-1. 5.
  • Page 86 MAINTENANCE Machine Alignment Setting Alignment Cable Tension (continued) 8. Measure and record the distance from the truss spreader to the span pipe. This is the DEFLECTED mea- surement. See Figure 86-1. 9. Subtract the DEFLECTED measurement from the ORIGINAL measurement. The difference should be ap- proximately 1-3/4 in to 2 in (41 mm to 51 mm), if it’s not, the hook bolts should be adjusted.

  • Page 87: Wheel E-Z Tow Power Supply Installation Example

    MAINTENANCE 2 Wheel E-Z Tow Power Supply Installation Example Center Pivot 7000, 8000, 8120 Series 87...

  • Page 88: Span Flushing Procedure

    MAINTENANCE Span Flushing Procedure The purpose of flushing the machine is to remove sand and debris from the pipeline. Excessive accumulation of sand in the machine also adds weight and can cause structural damage to the machine. The Flushing Process Should Be Performed: •...
  • Page 89 MAINTENANCE Span Flushing Procedure 3. Remove the pipe drains at each drive unit tower. Clean sand and foreign particles from these drains. Turn the rubber drain seal over when reinstalling. See Figure 89-1. NOTE • The rubber drain seals should be turned over when being reinstalled.
  • Page 90 MAINTENANCE Span Flushing Procedure 8. If the machine is equipped with an end gun: • Make sure the booster pump hose drain is not plugged with sand or debris and the hose is com- pletely drained. See Figure 90-1. • Clean the end gun shut off solenoid valve cross filter or optional dirty water filter.

  • Page 91: Winterization

    Each span should be supported off the end of the previous span with chains to allow for contraction during cold weather. Contact your Valley dealer for other winter storage/parking information and tips. Off Season Storage of Hose Never leave the hose laying in the field during the winter. The hose can be easily covered by snow, mud, or dust and can quickly become damaged by farm equipment.

  • Page 92: Regular Maintenance

    MAINTENANCE Regular Maintenance Time, humidity, vibration, temperature, sand, and machine operation all contribute to wear on your Valley irriga- tion machine. To keep the machine operating properly with a minimum amount of down time, establish a regular preventative maintenance program using the recommended maintenance charts in this section. If replacement parts are needed, use only genuine Valley Real Parts.

  • Page 93: Sprinkler

    Remarks season Pass Pass season season Check the water pressure to make Notify your local Valley dealer of any sure it matches the sprinkler package changes. pressure. Check sprinklers and nozzles for tight- ness. Check sprinkler for free movement. Check sprinkler nozzles for wear.

  • Page 94: Drive Unit

    Check the flex joint hose for leaks. Tighten clamps or replace as required. Check the motor lead cable for dam- Contact your local Valley dealer if the outer age. insulating sheath is cracked. Check for proper ground connection on motor and motor lead.

  • Page 95: Critical Torque Applications

    MAINTENANCE Regular Maintenance Hardware Identification - SAE Grade - Inch Size CAP SCREW LOCKNUT GRADE 5 GRADE 8 GRADE 5 GRADE 8 GRADE B GRADE C Use With Grade 5 Screw Use With Grade 8 Screw Vendor’s Mark Torque Chart - Hex Head Cap Screws SIZE GRADE 5 GRADE 8...

  • Page 96: Annual Maintenance Logs

    MAINTENANCE Regular Maintenance Pivot Annual Maintenance Log YEAR Date(s) Performed/Comments Check all nuts and bolts. Tighten as required. Check anchor bolts or chains. Check equipment grounding. Tighten or clean as required. Grease pivot swivel. Check condition of power and pump shutdown wires. Check collector ring base drain for proper drainage.
  • Page 97 MAINTENANCE Regular Maintenance Span Annual Maintenance Log YEAR Date(s) Performed/Comments Check flanges for leaks and tighten as necessary. Check pipe drains for proper drainage and invert the seal when applicable (see Winterization). Check structural com- ponents for tightness. Check power cable for dam- age and proper banding to ensure proper attachment.
  • Page 98 MAINTENANCE Regular Maintenance Sprinkler Annual Maintenance Log YEAR Date(s) Performed/Comments Check the pivot pressure to make sure it matches the sprinkler package pressure. Check sprinklers and nozzles for tightness. Check sprinkler for free movement. Check sprinkler nozzles for wear. Check pressure gauge or pressure transducer for proper operation.
  • Page 99 MAINTENANCE Regular Maintenance Alignment Annual Maintenance Log YEAR Date(s) Performed/Comments Check all nuts and bolts. Tighten as required. Check connection of grounding. Visually check for contactor wear and/or pitting. Make sure the power is OFF. Visually check sup- pressor connection. Align machine and check all safety switches.
  • Page 100 MAINTENANCE Regular Maintenance Overhang/End Gun/Booster Pump Annual Maintenance Log YEAR Date(s) Performed/Comments Check overhang cables for broken cable strands. Check and ensure opera- tion of the end gun drain. Check and clean the sand trap. Check end gun arc settings. Check end gun bear- ing and brake.
  • Page 101 MAINTENANCE Regular Maintenance Drive Unit Annual Maintenance Log YEAR Date(s) Performed/Comments Check flex joint boot for leaks and tighten bands as required. Check motor lead cable for damage. Check for proper ground con- nection on motor and motor lead. Check motor drain hole for proper drainage.
  • Page 102 MAINTENANCE 102 Center Pivot 7000, 8000, 8120 Series...

  • Page 103: Troubleshooting

    • ALWAYS DISCONNECT ELECTRICAL POWER BEFORE SERVICING OR PERFORMING MAINTE- NANCE TO THE MACHINE. • TESTING AND TROUBLESHOOTING SHOULD BE PERFORMED ONLY BY AN AUTHORIZED VALLEY DEALER. • ALWAYS REPLACE ANY GUARDS OR SHIELDS THAT ARE REMOVED FOR PERFORMING MAINTE- NANCE.

  • Page 104: In-Line Shut Down

    COMPANY IS THERE INCOMING POWER TO DID THIS CORRECT THE CONTROL PANEL? PROBLEM? REPAIR GENERATOR WILL THE CONTROL PANEL COME CALL VALLEY DEALER DETERMINE AND DID THIS CORRECT THE IS WATER PRESSURE LOW? CORRECT THE CAUSE PROBLEM? OF LOW WATER...

  • Page 105: Tower Ahead Shut Down

    Call your Valley Dealer to diagnose and repair a tower ahead shut down. Refer to the control panel Owners Manual for other TROUBLESHOOTING information.

  • Page 106: Tower Behind Shut Down

    REPAIR U-JOINT TRAILING TOWER? THE PROBLEM? REPAIR OR REPLACE DID THIS CORRECT DID A GEAR BOX FAIL? GEAR BOX THE PROBLEM? TOWER BOX SWITCH PIVOT ARM CALL VALLEY DEALER BOUND UP? CALL VALLEY DEALER 106 Center Pivot 7000, 8000, 8120 Series...

This manual is also suitable for:

Center pivot 8000 seriesCenter pivot 8120 series

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