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Valley Center Pivot 7000 Series Owner'S Manual Download Page 105

Center Pivot 7000, 8000, 8120 Series   105

TROUBLESHOOTING

Tower Ahead Shut Down

In a tower ahead shut down, the tower which is out of line and the farthest ahead fails to shut off and breaks 
the safety circuit.

!

WARNING

• TO REDUCE THE POSSIBILITY OF STRUCTURAL DAMAGE, NEVER REVERSE THE DIRECTION OF 

TRAVEL AFTER A TOWER AHEAD SHUT DOWN. AFTER MACHINE IS REPAIRED, ALWAYS OPER-
ATE IN THE SAME DIRECTION OF TRAVEL AS BEFORE THE SHUT DOWN. WHEN THE MACHINE 
COMES BACK INTO ALIGNMENT THE DIRECTION CAN BE CHANGED.

Tower ahead shut downs typically occur because of a component failure in the tower box. Some causes of 
tower ahead shut downs are; contactor failure, suppressor failure, run microswitch failure and binding of the 
switch pivot arm. Call your Valley Dealer to diagnose and repair a tower ahead shut down. Refer to the control 
panel Owners Manual for other TROUBLESHOOTING information.

DIRECTION

 OF TRAVEL

TOWER AHEAD SHUT DOWN

CALL VALLEY DEALER

Summary of Contents for Center Pivot 7000 Series

Page 1: ... 2019 Valmont Industries Inc Valley NE 68064 USA All rights reserved www valleyirrigation com Center Pivot 7000 8000 8120 Series Owner s Manual 0994464_M ...

Page 2: ...2 Center Pivot 7000 8000 8120 Series ...

Page 3: ... Decals 17 OVERVIEW 21 Pivot 21 Collector Ring and J Pipe 21 Pivot Flex 21 Spans 22 Overhang Option 23 End Gun Option 23 Drive Towers 23 Water Application 24 Span Cable 24 Intermediate Tower Boxes 24 Last Tower Box 24 Safety Circuit 24 Alignment 25 Over Watering Timer 26 Stop In Slot Control Mechanical Option 26 End Gun Control Mechanical Option 26 End Gun and Stop In Slot Control Electronic Optio...

Page 4: ...Reverse Adjustment 74 2 Wheel E Z Tow Pivot 75 Mechanical End Gun Ramp Adjustment 75 Mechanical Stop In Slot Adjustment 76 Pivot Mounted Auto Reverse Adjustment 77 Actuator Bolt Adjustment 77 Pivot Mounted Auto Reverse Example Settings 78 End Gun Arc Setting Example 79 Machine Alignment 80 Tower Alignment Three Tower Method 81 Standard Alignment Adjustment 82 Modified Alignment Adjustment 83 Pivot...

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

Page 6: ...inery EN 909 1998 A1 Irrigation Machines Statement regarding Pressure Equipment Directive 97 23 EC The Crop Irrigation System is excluded from the scope of the Pressure Equipment Directive by the language of Article 1 Sections 3 2 3 6 3 10 This equipment is classified less than Category 1 Statement regarding RoHS Directive 2011 65 EC The Crop Irrigation System is excluded from the scope of the RoH...

Page 7: ...rminal on generator in order for the differential ground fault circuit breaker to work The linear irrigation machines equipped with a generator are not equipped with a ground rod but must have a cable connected from the linear irrigation machine structure to the ground terminal of the generator in order for the differential ground fault circuit breaker to work The resistance between the irrigation...

Page 8: ... the equipment or damage the equipment Safety Messages Safety messages in this manual are preceded by the hazard symbol and one of three words danger warning or caution These messages alert you to potential hazards that could hurt you or others and or cause property damage This HAZARD SYMBOL is used to alert you to information about unsafe actions or situations and may be followed by the word dang...

Page 9: ... truss rods pipes angles and ladders in areas with energized power lines exposed conductors or circuit parts work practices such as the use of insulation guarding and material handling techniques must be used to minimize the hazard Portable ladders must have non conductive side rails Do not wear conductive articles of jewelry and clothing such as but not limited to watch bands bracelets rings key ...

Page 10: ...nformation Irrigation Equipment near Airports and Crop Dusting Aircraft If any part of the irrigation machine comes within 3200 ft 975 m of an airport runway especially the ap proach ends of the runway additional warning markers may be required In the United States CFR Title 14 Chapter I Subchapter E Part 77 Safe Efficient Use and Preservation of the Navigable Airspace describes when marking is ne...

Page 11: ...ound and other environmental conditions will increase the possibility of electrocution and require additional consideration Transmitter towers can induce the equipment or materials being handled with an electrical charge Before working or operating equipment near transmitter towers make sure the transmitter is de energized Select the location where the span drive unit will be assembled to ensure t...

Page 12: ...switch close valve etc 4 De activate the energy isolating device s so that the machine or equipment is isolated from the energy source s 5 Lock out the energy isolating device s with assigned individual lock s 6 Stored or residual energy such as that in capacitors springs elevated machine members rotating fly wheels hydraulic systems and air gas steam or water pressure etc must be dissipated or re...

Page 13: ...uld be presented annually and the service manager should ensure employees fully understand the safety messages and what to do in case of emergencies EMERGENCY STOPPING The machine can be stopped at any time at any tower by turning the disconnect switch located underneath the tower box to the OFF position See Figure 13 1 WARNING PROPER GROUNDING DO NOT attempt to start the machine until the electri...

Page 14: ... the machine DO NOT touch the machine again Call a qualified electrician or an authorized Valley dealer immediately WARNING LIGHTNING AND THE MACHINE Stay away from the machine during an electrical storm An irrigation machine makes a good path to earth It is also probably the tallest object in the field which makes it a good lightning receptor DANGER DISCONNECT POWER WHEN SERVICING ALWAYS disconne...

Page 15: ... Cloth ing or limbs may become entangled resulting in severe injury DO NOT service the machine until the main dis connect is locked in the OFF position ALWAYS replace drive shaft shields after servic ing DRIVE SHAFT SHIELDS MUST ALWAYS BE IN PLACE WHEN OPERATING THE MACHINE CAUTION CHECK WHEEL TRACKS BEFORE STARTING Make sure all objects livestock or persons are clear of the machine before startin...

Page 16: ...e end gun shut off mechanism CAUTION PROPER USE OF THE SAFETY OVERRIDE Caution MUST be taken by the operator when using the safety override function as it will bypass or dis able all of the machine s automatic safety shutdown circuits NEVER depress and hold the START STOP SAFE TY OVERRIDE switch in the START position for more than 3 to 5 seconds If the machine is not in full view by the operator d...

Page 17: ...afety 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 ...

Page 18: ...18 Center Pivot 7000 8000 8120 Series SAFETY Safety Decals WARNING WARNING WARNING WARNING ...

Page 19: ...mbs may become entangled resulting in severe injury Do not service until machine is locked in the off position Always replace drive shaft shield after servicing Drive Shaft Starts Without Warning DANGER Do not touch rotating drive shaft or shield Clothing or limbs may become entangled resulting in severe injury Do not service until machine is locked in the off position Always replace drive shaft s...

Page 20: ...WHEN HANDLING PLUG OR CABLE Location Remote public power installations Location Remote public power package Location Remote public power installations Location Long E Z Tow remote power package Location Ground Wire Towable Pivots CAUTION THIS MACHINE MAY START AUTOMATICALLY DO NOT SERVICE UNTIL MACHINE DISCONECT IS IN OFF POSITION AND LOCKED Location Automatic Restart Option Location E Z Tow Remot...

Page 21: ...g the cable as the machine makes revolutions around the field One electrical cable from the collector ring goes down through the J pipe exiting near the bottom of the riser and then is connected into the public power panel The other electrical cable from the collector ring goes out of the conduit and then connects into the control panel Pivot Flex A pivot flex allows for flexibility between the pi...

Page 22: ...rted with a bowstring under truss design Truss rods are attached to each truss assembly to support and strengthen the pipeline See Figure 22 1 The spans are attached to each other with a ball hitch and cup assembly which gives lateral rotational and vertical flexibility between the spans See Figure 22 2 The pipelines in each span are connected together with a flexible hose that is held in place wi...

Page 23: ...is area is determined by the forward and backward angles which are referred to as the end gun arc set tings See Figure 23 3 Drive Towers A drive tower is attached to the end of each span The tower box acts as a junction box for the span cable and supplies power to the electric motor on the center drive gearbox The center drive gearbox drives the wheel gearboxes The wheel gearbox drives the tire an...

Page 24: ...tionship to the next tower in the system See Figure 24 2 Last Tower Box The last tower control box provides power to the center drive gear motor depending on the percent timer setting at the control panel It also completes the safety circuit See Figure 24 2 Safety Circuit The safety circuit is a 120 volt AC control circuit that starts in the control panel and runs the entire length of the machine ...

Page 25: ...g Alignment for machines 2000 ft to 2800 ft 610 m to 853 m long The last tower is the controlling tower As the end tower moves all of the other towers move to maintain straight alignment When the last tower moves it creates an angular de flection with the next intermediate tower this closes the run microswitches and causes the next interme diate tower to move This cycle repeats itself throughout t...

Page 26: ...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 See Figures 26 2 and 26 3 The machine will be shut down when the stop in slot micro switch contacts the stop in slot ramp End Gun Control Mechanical Option The Valley Classic and ClassicPlus Control Panel can turn the end gun on and off through a control box near the top of the...

Page 27: ...ol panel The Control Panel uses the signal to determine field position in degrees Valley GPS Position Option The Valley GPS position option is usually installed at or near the end of machine See Figure 27 2 When the machine is on Valley GPS receives satel lite position data and sends raw coordinates to the control panel The control panel uses the raw coordinates to deter mine field position in deg...

Page 28: ...UTION NEVER USE THE SAFETY OVERRIDE BUT TON TO WALK THE MACHINE OFF OF THE BARRICADE STRUCTURAL DAMAGE MAY RESULT SOIL MAY BUILD UP IN THE WHEEL TRACK RESULTING IN A RAMP EFFECT ALLOW ING THE ACTUATOR ARM TO GO OVER THE BARRICADES REGULARLY MAINTAIN THE WHEEL TRACK TO INSURE THE ACTUATOR ARM ALWAYS CONTACTS THE BARRICADE Auto Reverse Auto Stop Box Option The Auto Reverse Auto Stop box provides the...

Page 29: ... FOR A PRECISE REVERS ING POINT IS CRITICAL SUCH AS AVOIDING A BUILDING OR TREE LINE THE DRIVE UNIT MOUNTED AUTO REVERSE OPTION AND THE PHYSICAL BARRICADE MUST BE USED PHYSICAL END OF FIELD STOP BARRI CADES MUST BE INSTALLED ON ALL PART CIRCLE MACHINES THE PHYSICAL BARRI CADE SERVES AS A BACK UP IN CASE THE CIRCUITRY OF THE PIVOT MOUNTED AUTO REVERSE OPTION SHOULD EVER FAIL SEE FIGURE 29 3 1 2 3 F...

Page 30: ...30 Center Pivot 7000 8000 8120 Series OVERVIEW ...

Page 31: ... and the Center Pivot Owner s Manual Part Circle Operation CAUTION PHYSICAL END OF FIELD STOP BARRICADES MUST BE INSTALLED ON ALL PART CIRCLE MA CHINES THE PHYSICAL BARRICADES SERVE AS A BACKUP IN CASE THE CIRCUITRY OR THE TRIP STRUCTURE SHOULD EVER FAIL DELETION OF THE PHYSICAL BARRICADES CAN BE DONE BY THE CUSTOMER ONLY SEE FIGURE 31 1 NOTE Care must be taken when the barricade op tion in Figure...

Page 32: ...el E Z Tow Pivot With Fixed Wheels Option 4 Wheel E Z Tow Pivot With Swivel Wheel Option See the TOWING section for drive unit preparation towable pivot preparation and towing procedures Copyright 2005 Valmont Industries Inc 8P4W0128 09 03 Assembly Part Functional Area 1 4 Wheel EZ Tow Overall Assembled View Quality checked for better irrigation ENG13 ORIG 02 97 1 2 3 Figure 32 1 1 SKID TOW PIVOT ...

Page 33: ...E MACHINE ALWAYS REPLACE ANY GUARDS OR SHIELDS THAT ARE REMOVED FOR PER FORMING MAINTENANCE 2 Turn OFF and lock the electrical service discon nect at each tow location See Figure 33 2 WARNING NEVER ATTEMPTTO LIFTTHE ENTIRE DRIVE UNIT AT ONE TIME IF THE JACK BEGINS TO SLIP OR MOVE OUT OF POSITION STOP RAISING THE DRIVE UNIT IMMEDIATELY LOWER THE DRIVE UNIT AND REPOSITION THE JACK NOTE Position the ...

Page 34: ...t steering arm to release it from the latch plate while pushing the tire toward the tow position until steering arm is out of latch plate See Figure 34 2 7 Push the tire toward the tow position while sup porting the drive shaft and using a small pry bar to separate the drive shaft U joint half from the flex joint and wheel gearbox U joint half After separating the U joint place the loose end of dr...

Page 35: ...align holes then attach steering arm to tow link bar with torque pin Secure torque pin with lynch pin See Figure 35 2 10 Lower the drive unit and remove the jack The tire is now in the tow position See Figure 35 3 11 Repeat steps 3 10 for all other drive unit tires 1 3 2 Figure 35 1 1 Carrier Spring 2 Tow Link Bar 3 Tow Link Carrier 1 2 3 4 Figure 35 2 1 Steering Arm 2 Tow Link Bar Yoke 3 Torque P...

Page 36: ...36 Center Pivot 7000 8000 8120 Series OPERATION Towing Option ...

Page 37: ...OUT OF POSITION STOP RAISING THE DRIVE UNIT IMMEDIATELY LOWER THE DRIVE UNIT AND REPOSITION THE JACK 3 The wheels on each drive unit must be turned into the operating position Use a jack to lift one side of the drive unit until the tire is off of the ground See Figure 37 3 4 Remove lynch pin from torque pin then remove torque pin and disconnect tow link bar from steering arm See Figure 37 3 1 2 Fi...

Page 38: ...ed corners with the wheel gearbox U joint half See Figure 38 2 Continue pushing the tire toward the operating position with enough force to push the gearbox U joint half over the flex joint and latch the steer ing arm in the latch plate See Figure 38 2 7 Make sure the steering arm is latched in the latch plate See Figure 38 3 1 2 3 Figure 38 1 1 Tow Link Bar 2 Tow Link Carrier 3 Carrier Spring 4 2...

Page 39: ...rque pins in wheel hubs 9 Rotate the tire until the hole in the hub torque pin receiver is aligned with the hole in the axle torque arm Install the torque pin and close the retainer plate Secure the retainer plate to the retainer clip with the lynch pin See Figure 39 2 10 Lower the drive unit and remove the jack The tire is now in the OPERATING position See Figure 39 3 11 Repeat steps 4 10 for all...

Page 40: ...40 Center Pivot 7000 8000 8120 Series OPERATION Towing Option ...

Page 41: ...IELDS THAT ARE REMOVED 2 Once the center pivot is positioned in the tow lane turn off and lock the pivot panel and all service disconnect switches Follow the MINIMAL LOCKOUT TAGOUT PRO CEDURE located in the SAFETY section of this manual and do the following 3 SHUT OFF and LOCK the public power service disconnect to the irrigation machine FILL OUT the blue OSHA safety color code tag and attach to t...

Page 42: ...lower riser See Figure 42 2 9 Remove anchor chains securing skid pivot to pivot pad See Figure 42 2 NOTE It is recommended that the skid pivot be equipped with a pivot flex to reduce stress between the pivot and the span while towing 10 Make sure that the skid pivot is equipped with tow braces See Figure 42 3 WARNING PIVOTTOW BRACES ARE CRITICALTO PIVOT TOWING STRENGTH TO REDUCE THE POSSIBILITY OF...

Page 43: ... in 12 7 mm cable clamps See Figure 43 1 15 Wrap chains around the bottom of each pivot leg then bolt a pivot trail cable to each chain See Figure 43 1 16 Attach trail cables to tow cable with 1 2 in 12 7 mm cable clamps Adjust the leading trail cables on the tow cable so that while towing the leading ends of pivot skids raise approximately 4 in 102 mm to prevent the skids from digging into the gr...

Page 44: ...MUM ALWAYS TOW THE MACHINE IN A STRAIGHT LINE NEVER ATTEMPT TO TURN THE MACHINE WHEN TOWING NEVER ATTEMPT REVERSING OR BACKING THE MACHINE INTO POSITION 18 Begin towing the machine in a slow gradual manner 19 Align the pivot legs with the anchor locations as the pivot approaches the pivot pad NEVER attempt reversing or backing the ma chine into position 20 Disconnect the tow cable trailing cables ...

Page 45: ...into the receptacle 25 If desired turn the power ON Unlock the Service Disconnect and turn it ON Unlock the Control Panel Disconnect and turn it ON If power is available the control panel voltmeter should display the voltage The machine is ready for operation CAUTION IF THIS IS THE FIRST ELECTRICAL CONNEC TION TO THE PIVOT POINT BE CERTAIN THE PHASING OR MOTOR ROTATION IS COR RECT SHOULD ANY OF TH...

Page 46: ...46 Center Pivot 7000 8000 8120 Series OPERATION Towing Option ...

Page 47: ...RDS OR SHIELDS THAT ARE REMOVED 2 Once the center pivot is positioned in the tow lane turn off and lock the pivot panel and service disconnect switches Follow the MINIMAL LOCKOUT TAGOUT PRO CEDURE located in the SAFETY section of this manual and do the following 3 SHUT OFF and LOCK the public power service disconnect to the irrigation machine FILL OUT the blue OSHA safety color code tag and attach...

Page 48: ...enera tor sets may only have pump control wires coming into one of the pivot pad receptacles 7 Disconnect the ground wire from the ground lug on the lower riser ear After removing ground wire retighten the grounding lug screw so it is not lost while towing See Figure 48 3 WARNING EACH TIME A TOWABLE PIVOT IS MOVED THE GROUND WIRE MUST BE REATTACHED TO THE GROUND LUG ON THE RISER AND CHECKED FOR EL...

Page 49: ...n and disconnect the tow link bars from the gearbox mount steering arms Install each torque pin back in the steering arm hole and secure with lynch pin See Figure 49 2 11 Rotate each tow link bar into the tow link carrier until the carrier spring latches into the hole in tow link bar See Figure 49 3 1 Figure 49 1 1 Riser Pipe 1 2 3 4 Figure 49 2 1 Lynch Pin 2 Torque Pin 3 Tow Link Bar 4 Steering A...

Page 50: ...t at any point during towing CAUTION TO REDUCE THE POSSIBILITY OF STRUC TURAL DAMAGE IF TOWING ON A SIDE SLOPE THE MACHINE MAYTENDTO SHIFT DOWNTHE HILL DUETO GRAVITATIONAL PULL DO NOT TOW ACROSS CROP ROWS DITCH ES OR ROUGH TERRAIN DO NOT JERK THE MACHINE AT ANYTIME WHILE TOWING DO NOT TOW THE MACHINE MORE THAN 2 MILES PER HOUR MAXIMUM ALWAYS TOW THE MACHINE IN A STRAIGHT LINE NEVER ATTEMPT TO TURN...

Page 51: ...and release the tow link bar from the tow link carrier Remove torque pin from each gearbox steering arm See Figure 51 2 20 Position each steering arm in tow link bar yoke align holes then attach each steering arm to tow link bar with torque pin and secure with lynch pin It may be necessary to move the tongue for proper alignment of the holes See Figure 51 3 21 Secure tongue in the raised position ...

Page 52: ...L DISCONNECTS ARE OFF BEFORE PLUGGING THE POWER PLUG INTO THE RECEPTACLE 26 If desired turn the power ON Unlock the Service Disconnect and turn it ON Unlock the Control Panel Disconnect and turn it ON If power is available the control panel voltmeter should display the voltage The machine is ready for operation CAUTION IF THIS IS THE FIRST ELECTRICAL CONNEC TION TO THE PIVOT POINT BE CERTAIN THE P...

Page 53: ...E VOLTAGE CAN KILL ALWAYS DISCONNECT ELECTRICAL POWER BEFORE TOWING THE MACHINE ALWAYS REPLACE ANY GUARDS OR SHIELDS THAT ARE REMOVED 2 Once the center pivot is positioned in the tow lane turn off and lock the pivot panel and service disconnect switches Follow the MINIMAL LOCKOUT TAGOUT PRO CEDURE located in the SAFETY section of this manual and do the following 3 SHUT OFF and LOCK the public powe...

Page 54: ...round while towing the pivot 7 Disconnect the water supply line from lower riser 8 Prepare the drive units for towing See Preparing Drive Unit For Towing in the front of Towing Op tion section 9 Remove the load binders at each corner of the pivot See Figure 54 2 10 If necessary move the tongue to the side of pivot that faces the towing direction See Figure 54 3 1 2 3 Figure 54 1 1 Service Disconne...

Page 55: ... WHEN TOWING NEVER ATTEMPT REVERSING OR BACKING THE MACHINE INTO POSITION 13 Align the pivot tires with the tire ruts and center point location as the pivot approaches the pivot pad 14 Attach and tighten the load binders at each cor ner of the pivot See Figure 55 2 15 Disconnect the tongue from towing unit 16 Connect the water supply line to the lower riser 17 Prepare the drive units for operation...

Page 56: ...wer plug into the receptacle 19 If desired turn the power ON Unlock the Service Disconnect and turn it ON Unlock the Control Panel Disconnect and turn it ON If power is available the control panel voltmeter should display the voltage The machine is ready for operation CAUTION IF THIS IS THE FIRST ELECTRICAL CONNEC TION TO THE PIVOT POINT BE CERTAIN THE PHASING OR MOTOR ROTATION IS COR RECT SHOULD ...

Page 57: ... 480 VOLTS CAN KILL ALWAYS DISCONNECT ELECTRICAL POWER BEFORE TOWING THE MACHINE ALWAYS REPLACE ANY GUARDS OR SHIELDS THAT ARE REMOVED 2 Once the center pivot is positioned in the tow lane turn off and lock the pivot panel and service disconnect switches Follow the MINIMAL LOCKOUT TAGOUT PRO CEDURE located in the SAFETY section of this manual and do the following 3 SHUT OFF and LOCK the public pow...

Page 58: ...pare the drive units for towing See Preparing Drive Unit For Towing in the front of Towing Op tion section 9 Remove the load binders at each corner of the pivot See Figure 58 2 10 If the pivot wheels are in line with the span move the tongue to the side of pivot that faces the tow ing direction See Figure 58 3 Then proceed to step 18 of these instructions If the pivot wheels are not in line with t...

Page 59: ... wheel in the swivel position with original hardware See Figure 59 2 14 Repeat steps 11 13 to set all other pivot wheels in the swivel position 15 Connect tongue to towing unit with a chain See Figure 59 3 16 Slowly turn the pivot point to the desired tow location 17 Reverse steps 11 13 to return the pivot wheels to the tow position 1 2 Figure 59 1 1 Bar 2 Swivel Tube 1 2 3 4 Figure 59 2 1 Steerin...

Page 60: ...E WHEN TOWING NEVER ATTEMPT REVERSING OR BACKING THE MACHINE INTO POSITION 20 Align the pivot tires with the tire ruts and center point location as the pivot approaches the pivot pad 21 Attach and tighten the load binders at each cor ner of the pivot See Figure 60 2 22 Disconnect the tongue from towing unit 23 Connect the water supply line to the lower riser 24 Prepare the drive units for operatio...

Page 61: ...power plug into the receptacle 26 If desired turn the power ON Unlock the Service Disconnect and turn it ON Unlock the Control Panel Disconnect and turn it ON If power is available the control panel voltmeter should display the voltage The machine is ready for operation CAUTION IF THIS IS THE FIRST ELECTRICAL CON NECTION TO THE PIVOT POINT BE CERTAIN THE PHASING OR MOTOR ROTATION IS CORRECT SHOULD...

Page 62: ...62 Center Pivot 7000 8000 8120 Series OPERATION Towing Option ...

Page 63: ...LOCK the public power service disconnect to the irrigation machine See Figure 63 1 FILL OUT the blue OSHA safety color code tag and attach to the disconnect after locking See Figure 63 1 2 SHUT OFF and lock the control panel main power disconnect See Figure 63 2 FILL OUT the blue OSHA safety color code tag and attach to the disconnect after locking See Figure 63 2 DANGER BE AWARE OF HIGH WATER PRE...

Page 64: ... bottom of the wheel gearbox and drain the oil into a container See Figure 64 1 2 Install the drain plug after draining oil 3 Clean all of the dirt away from the fill plug See Figure 64 2 NOTE 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 F 94 C wi...

Page 65: ...out alarm 2 Fill the gearbox 1 7 8 in 48 mm from the bottom of fill plug hole with Valley Gear Lube The capacity of the gearbox is approximately 44 oz 1 3 liter See Figure 65 1 NOTE OIL LEVEL SHOULD BE 1 7 8 IN 48 MM BE LOW FILL PLUG WHEN FULL Special Dipstick for Checking Oil Level The dipstick is not part of the gearmotor plug Remove gearmotor plug and insert dipswitch to check oil level Low oil...

Page 66: ... ber cap Do not allow dirt to fall into the gearbox when removing the cap See Figure 66 2 Make sure the vent holes on each side of the expansion chamber cap are open and unob structed NOTE 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 F 94 C withou...

Page 67: ...f the gearmotor plug Remove gearmotor plug and insert dipswitch to check oil level Low oil condition would be no oil on stick High oil condition would be oil above the indicator hole Dipstick part number is 0998886 WARNING INPUT SEAL FAILURE CAN OCCUR IF OIL CAPACITY IS EXCEEDED Worm Gearmotor After EACH season of operation change the oil in all of the worm gearmotor gearboxes 1 Remove the drain p...

Page 68: ...ure several times a year Pre season At spring start up During season Check tire pressure monthly Post season When performing fall winteriza tion For the correct tire pressure refer to the decal on the rim or the tire pressure chart See Figure 68 2 WARNING TIRES ARE SHIPPED AT A PRESSURE OF 30 TO 35 PSI 206 TO 241 KPA BE SURE THE TIRES HAVE BEEN DEFLATED TO THE CORRECT PRESSURE SHOWN ON DECAL BEFOR...

Page 69: ... the barricade area Wheel Tracks It is important to maintain wheel tracks See Figure 69 2 Ensure correct tire pressure to help reduce the possibility of deep wheel tracks Wheel track depth Regular drive units must not exceed 4 in 101 mm Wheel track depth can be controlled by various methods which include larger tires dry wheel track sprinkler packages boombacks wide flat berms drag socks etc Engin...

Page 70: ...r 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 Pivot Swivel Lubrication The pivot swivel should be greased every 5 to 7 revo lutions with water resistant lithium based grease See Figure 70 3 Greasing the pivot swivel regularly re...

Page 71: ... rollers with Water Resistant Lithium based grease every 5 to 7 revolutions 1 Lubricate three 3 upper swivel rollers See Fig ure 71 1 2 Lubricate two 2 grease fittings on the upper bearing See Figure 71 2 3 Lubricate two 2 grease fittings on the lower bearing See Figure 71 3 1 Figure 71 1 1 Upper Swivel Roller 1 Figure 71 2 1 Upper Bearing 1 Figure 71 3 1 Lower Bearing ...

Page 72: ...ol box is located 180 degrees from the direction the pivot extends from the elbow See Figure 72 2 Therefore the ramps must be placed 180 degrees opposite the action point Figure 72 3 illustrates the ramp placement to shut the end gun off at the high way location NOTE Very small changes in the location of the end gun shut off ramp can result in MUCH greater distance changes at the outer end of the ...

Page 73: ...portion of the ramp NOTE Make sure of proper contact between ramps and switch rollers Notice that the control box is located 180 degrees from the direction the pivot extends from the elbow See Figure 73 1 Therefore the ramp must be placed 180 degrees opposite the action point Figure 73 2 illustrates the ramp placement to shut the machine down at the pivot road NOTE Very small changes in the locati...

Page 74: ...ackets corresponding to the position where the center pivot is to change di rections NOTE A very small change in the location of either switch can result in MUCH greater change at the outer end of the machine For example 1 16 of an inch at the pivot equates to ap proximately 7 feet at the outer end of a typical quarter section center pivot After the auto reverse switches have been installed and in...

Page 75: ...t the control box is located 180 degrees from the direction the pivot extends from the elbow See Figure 75 1 Therefore the ramps must be placed 180 degrees opposite the action point Figure 75 2 illustrates the ramp placement to shut the end gun off at the high way location NOTE Very small changes in the location of the end gun shut off ramp can result in MUCH greater distance changes at the outer ...

Page 76: ... ramp NOTE Make sure of proper contact between ramps and switch rollers Notice that the control box is located 180 degrees from the direction the pivot extends from the elbow See Figure 76 1 Therefore the ramp must be placed 180 degrees opposite the action point Figure 76 2 illustrates the ramp placement to shut the machine down at the pivot road NOTE Very small changes in the location of the stop...

Page 77: ...Actuator Bolt Adjustment Position each of the actuator brackets in the appropri ate position on the split ring Adjust the actuator bolts in the slots of the actuator brackets corresponding to the position where the center pivot is to change directions NOTE A very small change in the location of either actuator bolt causes a MUCH larger change at the outer end of the machine For example 1 16 of an ...

Page 78: ...r EXAMPLE 4 350 Center Pivot Operation See Detail C End Gun Stop In Slot Box 350 Pivot Position Detail C Top View 1 2 1 2 1 1 2 2 3 3 3 3 3 3 3 3 4 4 4 4 5 5 5 5 6 6 7 7 End Gun Stop In Slot Box End Gun Stop In Slot Box Figure 78 1 1 Auto Forward Reverse to Forward Actuator Bolt Down 2 Auto Reverse Forward to Reverse Actuator Bolt Up 3 Actuator Plate 4 Auto Reverse Switch Forward to Reverse 5 Auto...

Page 79: ...rd and Backward end gun angles which are sometimes referred to as the end gun arc settings A line on the sprinkler chart specifies the correct end gun arc settings for the machine See Figure 79 2 END GUN ARC SETTING EXAMPLE FORWARD ANGLE 45 BACKWARD ANGLE 85 IMPORTANT This is an example only Refer to the sprinkler chart for each pivot to determine the correct end gun arc settings These settings sh...

Page 80: ...tructural damage and reduce expected motor and gearbox life A leading bow creates extreme tension or linear pull ing force over the entire machine See Figure 80 1 A trailing bow creates extreme compressing or linear pushing force on the entire machine When the spans are compressed they lose their inherent strength See Figure 80 1 WARNING A TRAILING BOW IN EITHER DIRECTION IS NEVER ACCEPTABLE AND M...

Page 81: ... as 1 2 and 3 Use towers 1 and 3 to align tower 2 See Fig ure 81 1 3 Sight an imaginary center line between the cen ter of the tower drive motor 1 to the center of the tower drive motor 3 See Figure 81 1 4 Observe the movement of the tower drive motor 2 It should start and stop equal distances from the imaginary center line See Figure 81 1 If it does not the alignment linkage at tower box 2 needs ...

Page 82: ... ed stud as if tightening it Counter clockwise Back the nut off of the threaded stud as if loosening it CAUTION NEVER ADJUSTTHE JAM NUTS MORETHAN 1 4 OF A TURN AT ONE TIME ALWAYS RE TIGHTEN THE JAM NUTS AND ALLOW THE TOWER TO CYCLE TWICE START AND STOP TO DETERMINE IF THE TOWER IS STILL LEADING OR TRAILING 3 Tighten jam nuts 4 Tighten hardware to secure control bar to switch pivot arm Allow tower ...

Page 83: ...wise From the tower box side of the drive tower rotate the connection rod clockwise to in crease the distance between the control bar and the switch pivot arm Counter clockwise From the tower box side of the drive tower rotate the connection rod counter clockwise to decrease the distance between the control bar and the switch pivot arm CAUTION NEVER ADJUST THE CONNECTION ROD MORE THAN 1 8 OF A TUR...

Page 84: ... Forward Leading Bow Counter clockwise Trailing Bow Clockwise Reverse Leading Bow Clockwise Trailing Bow Counter clockwise Clockwise Adjust the nut further onto the thread ed stud as if tightening it Counter clockwise Back the nut off of the threaded stud as if loosening it CAUTION NEVER ADJUST NUTS 1 AND 2 MORE THAN 1 4 TURN AT ONE TIME ALWAYS RE TIGHTEN THE JAM NUTS AND ALLOW THE TOWER TO CYCLE ...

Page 85: ...ss the safety cables and measure and record the distance from the truss spreader to the span pipe without the full weight of the truss spreader This is the ORIGINAL measurement See Figure 85 1 Alternate Method 6 With a piece of string and a 3 4 in nut tied to each end you can lay it over the cables and one man can measure the ORIGINAL measurement 7 Lower the truss spreader onto the alignment cable...

Page 86: ...ot the hook bolts should be adjusted See Figure 86 1 1 1 1 1 3 3 5 2 2 4 2 2 5 5 Figure 86 2 1 Hook Bolt 2 Alignment Cable 3 T Bar 4 Span Pipe 5 90 Degrees 1 2 4 3 1 7 6 5 Figure 86 1 1 Alignment Cable 2 Truss Spreader 3 Ball and Socket Joint 4 Span Pipe 5 T Bar 6 Deflected Measurement 7 Pivot 10 Adjust the hook bolts until the proper deflection of alignment cables is achieved and both the T Bars ...

Page 87: ...ing Conductor Ground Level Conduit Plastic Bushing Ground Rod 914 4 mm Ground 304 8 mm 36 in 12 in Lug Grounding Conductor Ground Rod Plastic Bushing Conduit Ground Lug Ground Lug PIVOT CONTROL PANEL with FUSED MAIN DISCONNECT SWITCH DANGER ELECTRICAL HAZARD Pump Control Connection Power For Pump Control Must Originate At The Pump Panel NOT At The Pivot Panel See Wiring Diagram On Panel For Requir...

Page 88: ...TH 1 Turn the pump off and make sure machine is completely drained DANGER BE AWARE OF HIGH WATER PRESSURE TURN OFF THE PUMP AND ALLOW THE MA CHINETO DRAIN COMPLETELY BEFORE RE PAIRING OR PERFORMING MAINTENANCE TO THE MACHINE 2 Turn the control panel main disconnect switch off Only water is required for this procedure the machine does not need to run Follow the MINIMAL LOCKOUT TAGOUT PRO CEDURE loc...

Page 89: ...r drive unit See Figure 89 2 5 Remove plugs from the overhang drains Clean sand and foreign particles from these drains Turn the rubber drain seal over when reinstall ing See Figure 89 3 6 Start the pump and allow the machine to flush thoroughly NOTE After flushing for winterization ensure the water has been allowed to drain completely before replacing the pipe drains and plugs to prevent freezing...

Page 90: ...lugged 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 See Figures 90 2 and 90 3 Clean the water shut off valve external filter See Figure 90 4 1 Figure 90 1 1 Booster Pump Hose Drain 1 Figure 90 2 1 Cross Filter 1 Figure 90 3 1 Optional Dirty Water Filter ...

Page 91: ...ds when parking the machine in the off season 1 Park the machine in an area where the wheel tracks have been eliminated 2 Place wooden 2 in x 12 in planks over the wheel tracks Park the machine with the tires on the center of the planks 3 Towable Drive Units Place every third drive unit s wheels in the tow position 4 Remove all wheel tracks and run the machine dry without water for approximately 1...

Page 92: ...nd adjust span cable as required Pivot Pre season 1st Pass 4th Pass Mid season Post season Remarks Check all nuts and bolts Tighten as required X X Check anchor bolts or chains X X If your pivot is towable check the ground ing conductor hook ups prior to start up each time the pivot is towed Check equipment grounding conductors Tighten or clean as required X X Grease pivot swivel X X X Check condi...

Page 93: ...Clean as required Flush entire machine X X See the Span Flushing Procedure and Winterization in the Maintenance section Check end gun bearing and brake set ting X X Ensure the booster pump hose is drained X Alignment Pre season 1st Pass 4th Pass Mid season Post season Remarks Check all nuts and bolts Tighten as required X X Check connection of grounding bond jumpers X X Visually check for contacto...

Page 94: ...fter Check the wheel gearbox seals and gaskets X Check the drive shaft U joints Check the U joint and drive shaft covers for damage X Replace covers as required Check the wheel lug nut torque Tight en to 125 ft lb 169 N m torque X X Check the tire pressure X X X See the Tire Pressure Chart in the Mainte nance section Check the ARAS EOFS arms for proper operation X X Grease the towable hubs X X X S...

Page 95: ...09 106 96 115 144 130 156 9 16 108 98 117 146 133 158 152 139 166 206 188 225 5 8 149 135 162 202 183 219 210 191 229 285 259 310 3 4 264 240 297 358 325 402 372 338 406 504 458 550 7 8 426 387 464 577 525 629 601 546 655 815 740 888 1 637 579 695 863 785 942 900 818 982 1220 1109 1331 Regular Maintenance Hardware Identification SAE Grade Inch Size CAP SCREW GRADE 5 GRADE 8 NUT GRADE 5 GRADE 8 LOC...

Page 96: ...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 Visually check pivot contactors for arcing Drain riser assembly Check placement of screens on generator pump panel and electric motors used to prevent rodent damage Check the air pres sure in the tires Regular Maintenance ...

Page 97: ...ormed 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 Regular Maintenance ...

Page 98: ...rinkler 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 Check for plugged or partially plugged nozzles Flush the entire machine Check end gun bearing and brake setting Ensure the booster pump hose is drained Regular Maintenance ...

Page 99: ...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 Check for proper safety microswitch position Regular Maintenance ...

Page 100: ...erformed 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 Check end gun nozzle for wear Drain booster pump and ensure booster pump is completely drained Regular Maintenance ...

Page 101: ... con nection on motor and motor lead Check motor drain hole for proper drainage Drain and replace gear motor lubricant Check change gear box lubricant Check gear motor seals and gaskets Check drive shaft U joints and U joint covers Check gearbox seals and gaskets Check and tighten wheel lug bolts 125 lb ft torque Check tire pressure Clean gearbox ventila tion hole expansion chamber 3 times year Gr...

Page 102: ...102 Center Pivot 7000 8000 8120 Series MAINTENANCE ...

Page 103: ...OCK the public power service disconnect to the irrigation machine See Figure 103 1 FILL OUT the blue OSHA safety color code tag and attach to the disconnect after locking See Figure 103 1 2 SHUT OFF and lock the control panel main power disconnect See Figure 103 2 FILL OUT the blue OSHA safety color code tag and attach to the disconnect after locking See Figure 103 2 DANGER BE AWARE OF HIGH WATER ...

Page 104: ...ERMINE AND CORRECT THE CAUSE OF LOW WATER PRESSURE NO YES DID THIS CORRECT THE PROBLEM NO YES REVERSE DIRECTION OF MACHINE TO RESET TIMER NO YES DID THIS CORRECT THE PROBLEM NO YES REPAIR U JOINT NO YES DID THIS CORRECT THE PROBLEM NO YES REPAIR TIRE NO YES DID THIS CORRECT THE PROBLEM NO YES FILL IN WHEEL TRACK WITH DRY SOIL YES REPAIR GENERATOR CALL VALLEY DEALER In Line Shut Down In line shut d...

Page 105: ...ATE IN THE SAME DIRECTION OF TRAVEL AS BEFORE THE SHUT DOWN WHEN THE MACHINE COMES BACK INTO ALIGNMENT THE DIRECTION CAN BE CHANGED Tower ahead shut downs typically occur because of a component failure in the tower box Some causes of tower ahead shut downs are contactor failure suppressor failure run microswitch failure and binding of the switch pivot arm Call your Valley Dealer to diagnose and re...

Page 106: ...one or more of the following areas tower box drive train or machine alignment Use the flow chart below to determine if the cause of shut down is mechanical Refer to the control panel Owners Manual for other TROUBLESHOOTING information DIRECTION OF TRAVEL TOWER BEHIND SHUT DOWN IS THE TRAILING TOWER STUCK IN WHEEL TRACK IS THERE A FLAT TIRE ON TRAILING TOWER IS THERE U JOINT FAILURE ON TRAILING TOW...

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