Case Backhoe Operations Manual - General Gear

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BackhoeOperator's Manual

ages in this manual. When you see this symbol.carefully read the message that follows and be alert tothe possibility of personal injury or death.IMPORTANTIf this machine is used by an employeeor is loaned or rented, make absolutely certain that the operator(s), priorto operating:1. Is instructed in safe and properuse.2. Reviews and understands theManual(s) pertaining to the machine.BEFORE STARTING ENGINESTUDY OPERATOR'S MANUAL SAFETY MESSAGESREAD ALL SAFETY SIGNS ON MACHINECLEAR THE AREA OF OTHER PERSONSLEARN & PRACTICESAFE USE OF CONTROLSBEFORE OPERATINGIT IS YOUR RESPONSIIILlTY TO UNDERSTAND AND FOLLOW AMANUFACTURER'SINITRUCTIONI ON MACHINE OPERATION, SERVICE,AND TO OISERVE PERTINENT LAWS AND REGULATIONS. OPERATORAND SERVICE MANUALS MAY IE OITAINED FROM YOUR EQUIPMENTDEALER.321·370S"Issued 5/79, J I Case, Light Equipment Division (Revised 1/80)

TABLE OF CONTENTSINTROOUCTIONTO THE OWNERiii.SAFETY"'I' Safety AL NUMBER LOCATION1SPECIFICATIONS,Specifications - 070, S070 Backhoes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Oimensions- 070, S070 Backhoes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Specifications - 0100, 0100XR. S0100, R0100 Backhoes.Oimensions- 0100, 0100XR, S0100, R0100 Backhoes.Specifications - 0130 Backhoe.Oimensions- 0130 Backhoe.2234567BACKHOE OPERATIONBackhoe Controls - StandardBackhoe Controls - Optional Oual LeverPre-Starting Safety PrecautionsBackhoe Transport Position070, S070 Backhoes0100, 0100XR, S0100, R0100 Backhoes0130 BackhoePositioning the MachineStarting the ExcavationFilling the BucketOump and Return CycleAlignment CorrectionsTrenching and Excavating ProceduresContinuous Trenching with Spaced BellholesTrenching between Buildings and Open ExcavationsSide Slope Trenching or ExcavatingFinishing Straight WallsBackfillingPREVENTIVEMAINTENANCEImportance of PreventiveMaintenanceScheduled MaintenanceService Points - 070, S070 BackhoesService Points - 0100, 0100XR, S0100, R0100 BackhoesService Points - 0130 BackhoeHydraulic SystemHydraulic System CleanlinessFastener Inspection and MaintenanceBACKHOE 2232325282930313132323436363738

INTRODUCTION TO THE OWNERThis manual is your guide to safe, productive operation. Read it carefully. It will helpto reduce trial and error learning. It should also minimize damage and downtimecaused by improper maintenance.For additional information, contact your nearest authorized Case Dealer.070 Backhoe780614780620S070 Backhoeiii

0100 Backhoe(with outrigger stabilizers)(0100XR similar)0100 Backhoe(with verticle stabilizers).,78061578061680100 Backhoeiv

780617RD100 BackhoeD130 BackhoeJ I Case reserves the right to make improvements in design or changes in specifications at any time without incurring any obligation to such changes.v

SAFETYSAFETY RULESYour safety and the safety of those around you is highIy dependent upon the careandgood judgment you exercise in the use of this equipment. Know the positions andfunctions of all controls before attempting to operate. BE SURE TO CHECK ALLCONTROLS IN A SAFE OPEN AREA BEFORE STARTING YOUR WORK.READ THIS MANUAL THOROUGHLY and make sure you understand its contents.All equipment has limitations. Be sure you understand all operating characteristics ofthis machine before starting to operate.The safety information in this manual is not intended to replace safety codes,insurance requirements, federal, state, and local laws, rules, and regulations.Know the regulations and laws that apply to your areaand be surethat your machineis properly equipped to meet such laws and regulations.It is recommendedthat the following safety rules be copied and posted on the job siteand in your office.UFFltEDoSAfETY IUlES I!I[gJ !IiPRE-STARTINGWARNING: Before starting engine, study operator's manual safety messages. Read all safety signs on machine.Clear the area of other persons. Learn and practice safeuse of controls before operating."Ithis your responsibility to understand and follow manufacturer's instructions on machine operation, service, andto observe pertinent laws and regulations. Operator'smanuals may be obtained from your Case dealer.viL.

IAh.WARNING: Always make certain that the work area isclear of any people or obstructions BEFORE operatingmachine.CAUTION: Visually check the machine for leaks andbroken, missing, or malfunctioning parts. Be sure all caps,dip sticks, battery covers, etc., are secure before starting.A properly maintained machine will help avoid accidents.vii

AWARNING: Know the location of underground cables,water mains, gas lines, etc. Machine contact with underground obstructions could result in personal injury.LOPERATIONAWARNING: Be fully aware of the location of all the controis before operating this machine. BE PARTICULARLYCAREFUL IF THIS IS NOT THE MACHINE YOU NORMALLY OPERATE. Proper machine operation can help toprevent accidents.AWARNING: Fasten your seat belt. On machine equippedwith ROPS, always fasten seat belt securely beforestarting engine.ACAUTION: Never wear a seat belt loosely or with slack inthe belt system. Never wear the belt in a twisted conditionor pinched between the seat and structural members.viiiL

A.A.WARNING: If at any time you become confused whileoperating the machine, stop the engine. Return allcontrols to neutral and restart the engine to beginoperation again.WARNING: Before operating in an unfamiliar area, walkaround the full length of the proposed trench site andcheck for hidden holes, drop-offs, or obstacles that couldcause an accident.ACAUTION: Understand the machine's limitations. Keepit under control at all times. DO NOT TRY TO DO TOOMUCH TOO FAST.AWARNING: Operate at a speed consistent with workingconditions and the terrain. Be extremely careful whenworking on banks and hillsides. Do not rush.ACAUTION: Keep alert. Clear the operating area of allunauthorized persons. Know the location of fellowworkers in your area.AWARNING: Lower the equipment to the ground, engagethe parking brake, if equipped, stop the engine andremove the key before leaving the operator's seat.ADANGER: Exhaust fumes can kill. If necessary to startan engine in an enclosed area, be sure to provide adequate ventilation.ix

ADANGER: Keep all machine parts away from live electrical lines. If work must be done close to high voltagelines, have the utility disconnect them. It is not necessaryto actually contact a power line for the electricity toground through the machine. If power does groundthrough the machine, remain on the machine and DONOT TOUCH THE MACHINE STRUCTURE. Refer to thefollowing chart.CONDUCTORVOLTAGE50,000 Volts or LessOver 50,000 Volts345,000 to 750,000 VoltsMINIMUMWORKINGCLEARANCEFROMCONDUCTOR10 ft. (3 m)10 ft. (3 m) plus 0.4 ft. (10.2 mm)for each 1,000 volts over 50,000MINIMUMTRANSIT CLEARANCEFROMCONDUCTOR4ft. (1,2m)10 tt. (3 m)16 ft. (4.8 m)NOTE: If the above requirements are less stringent than state requirements, the staterequirements shall apply.AWARNING: Gas carried in pipelines is flammable/explosive. Use proper precautions to avoid igniting gas whichcould cause personal injury.AWARNING: Operate backhoe from operator's seat only.Operation from any other position could result inpersonal injury.AWARNING: Never dig under the stabilizers or backfillblade. The madhine could tip into the excavation if thebank caved in.x

ACAUTION: Engage the transport locking device(s) inbackhoe before trailering or transporting a machine between job sites, or when backhoe is not in use.AWARNING: Before swinging the backhoe to either side,be sure there is ample room and that all persons are out ofthe way.ACAUTION: Be extremely careful when working close toan op.en trench. Serious injury could result from a trenchcave-In.ACAUTION: Always use both hands when climbing on oroff t e machine. Never get on or off a machine while it ismoving.h.CAUTION: Do not use the control levers as a handhold torgetting on or off the machine.ACAUTION: To help avoid uncontrolled machine movement and unauthorized use, stop the engine beforeleaving the machine unattended.xi

SERVICEh.CAUTION: Understand correct maintenance proceduresbefore attempting repairs. There is no disgrace in askingfor help. Proper maintenance procedures can help prevent accidents.h.CAUTION: Wear safety glasses when servicing themachine, especially when pounding or grinding. Flyingparticles can cause permanent eye injury.ACAUTION: Always lower the backhoe to the ground orblock it securely before performing any service or adjustment.LCAUTION: Hydraulic systems are highly pressurized.Escaping hydraulic oil, even an invisible pinhole leak, canpenetrate body tissues causing serious injury. Use a pieceof wood or cardboard when looking for leaks - never usethe hands or other parts of the body.h.Relieve hydraulic pressure before disconnecting circuits .When reassembling, make absolutely certain that allconnections are tight.If injured by hydraulic oil escaping under pressure, see adoctor immediately. Serious complications may arise ifmedical attention is not given at once.h.AWARNING: Use extreme caution when disconnectinghydraulic lines. High pressure in a system could causeinjury when fittings are disconnected. Relieve all pressurebefore working on system.CAUTION: Stop the engine before you grease, oil, or perform any maintenance on the machine unless otherwiseinstructed in the owner's manual or service manual.IMPORTANT: Always install new decals whenever the old decals are destroyed,lost, painted over, or illegible. When individual parts are replaced thathave decals attached, be sure to install a new decal with the new part.Replacement decals are available from your Case dealer.xiiL

SERIAL NUMBER LOCATIONSERIAL NUMBER LOCATION When ordering parts or requesting information from your authorized Casedealer bypersonal contact or correspondence, always specify the model and serial numbers ofthe machine and backhoe in question. Record serial numbers in the space provided atthe back of this manual. The backhoeserial number platesfor all models are located onthe backhoe control console.NOTE: The terms "right hand" (RH) and "left hand" (LH) as used in this manual aredetermined by sitting in the operator's seat and facing the backhoe controlconsole.I

SPECIFICATIONSSPECIFICATIONS - 070, S070 BACKHOE(.,.NOTE: All specifications taken in accordance with SAE Standards or RecommendedPractices and ICED Definitions where applicable.GENERALModelTypeCase 070, S070 BackhoeUtilityOPERATIONALOigging Forcewith Bucket Cylinderwith Oipper Stick Cylinder2950 Ibf (13.12 kN)1396 Ibf (6.21 kN)BUCKET CAPACITYBUCKETTYPETrenchingCAPACITYSIZECUTTING 1.26m3ft30.0350.94m30.027HYDRAULICSSystem relief valve setting2000 psi (13,800 kPa)WEIGHTS - Approximate Operating (without bucket)070S0702500 Ibs (227 kg)450 Ibs (204 kg).

DIMENSIONS-070, SD70 BACKHOEf --E--- oI ·:::.K!-:. .t;I ·--,::.-:i;").·:::1F portBucket RotationSwing ArcStabilizer Spread (Transport) 070 onlyStabilizer Spread (Maximum operation) 070 only108.0in. (2743 mm)45.25 in. (1149 mm)1270180044.5 in. (1130 mm)53.8 in. (1366 mm)3

SPECIFICATIONS - 0100, 0100XR, S0100, R0100 BACKHOENOTE: All specifications taken In accordance with SAE Standards or RecommendedPractices and ICED definitions where applicable.GENERAL :pd:1 .::::::::::::::::::::::::::::. . .1. ,. . '. . :. .1. . a t lft OPERATIONALDigging Forcewith Bucket Cylinderwith Dipper Stick Cylinderwith Dipper Stick Cylinder (D100XRonly)5295 Ibf (23.55kN)1997 Ibf (8.88 kN)3012 Ibf (13.40kN)BUCKET CAPACITYBUCKETTYPETrenchingBell 06305914559457305CUTTING .0780.0640.0460.0280.1060.0640.0390.028'See your Case dealer for backhoe bucket sizes available for your machine.HYDRAULICSSystem relief valve settingCircuit relief valve settingWEIGHTS - Approximate Operating (without Bucket)D100 - vertical stabilizersD100 - outrigger stabilizersD100XR- outrigger stabilizersSD100RD10042000 psi (13,800kPa)3000 psi (21,000kPa)810 Ibs (367 kg)1125 Ibs (510 kg)885 Ibs. (401 kg)730 Ibs (331 kg)875 Ibs (397 kg)

DIMENSIONS-0100, 0100XR, SD100, R0100 BACKHOE\\7807260100,80100, R0100 A. Reach. "B. Loading ReachC. Bucket RotationO. Swing ArcE. Stabilizer Spread - 0100 onlyVertical stabilizersOutrigger stabilizers0100XRA. ReachB. Loading ReachC. Bucket RotationD. Swing ArcE. Stabilizer SpreadOutrigger stabilizers115.3in. (2993mm)49.5 in. (1257 mm)1380180049 in. (1245mm)116 in. (2946 mm)136.0in. (3454mm)74.4 in. (1890mm)13801800116.0in. (2946mm)5

SPECIFICATIONS-0130 BACKHOENOTE: All specifications taken in accordance with SAE Standards or RecommendedPractices and ICED Definitions where applicable.GENERALModelTypeCase D130 Backhoe Utility '-'OPERATIONALDigging Forcewith Bucket Cylinderwith Dipper Stick Cylinder6575 Ibf (29.25 kN)3546 Ibf (15.77 kN)BUCKET CAPACITYBUCKETTYPETrenchingBell 221812CUTTING ft35.254,003.006.003,873.001.75HYDRAULICSSystem relief valve settingCircuit Relief valve settingWEIGHT - Approximate Operating (without 4.0422375 psi (16,600kPa)3000 psi (21,000kPa)1550 Ibs. (703 kg)

DIMENSIONS-0130 BACKHOE,\1\eA.B.C.D.E.F.'\/\.\\\\r.,\j\!\),/\\\r \ J,. 1. . J)/ReachLength - TransportBucket RotationSwing ArcStabilizer Spread - TransportStabilizer Spread - Maximum780727····.······149 in. (3785 mm)··· 62 in. (1575 mm)1350180064 in. (1226 mm)90 in. (2286 mm)7

BACKHOE OPERATIONAWARNING: Fasten your seat belt. On machine equippedwith ROPS, always fasten seat belt securely beforestarting engine.ACAUTION: Never wear a seat belt loosely or with slack inthe belt system. Never wear the belt in a twisted conditionor pinched between the seat and structural members.AWARNING: If at any time you become confused whileoperating the machine, stop the engine. Return allcontrols to neutral and restart the engine to beginoperation again.ACAUTION: Keep alert. Clear the operating area of allunauthorized persons. Know the location of fellowworkers in your area.AWARNING: Operate backhoe from operator's seat only.Operation from any other position could result inpersonal injury.ACAUTION: Always use both hands when climbing on oroff t e machine. Never get on or off a machine while it ismovmg.AACAUTION: Do not use the control levers as a handhold forgetting on or off the machine.A8CAUTION: To help avoid uncontrolled machine movement and unauthorized use, stop the engine beforeleaving the machine unattended.WARNING: Lower the equipment to the ground, engagethe parking brake. if equipped, stop the engine andremove the key before leaving the operator's seat.L

BACKHOEACONTROLS-StandardWARNING: Be fully aware of the location of all the controis before operating this machine. BE PARTICULARLYCAREFUL IF THIS IS NOT THE MACHINE YOU NORMAllY OPERATE. Proper machine operation can help toprevent ER,LEFTUPOOWNSTABILIZERRIGHTUPOUTICROWDINI7701601. BOOM CONTROL LEVER - Move lever toward the backhoe to lower boom, movelever away from the backhoe to raise boom.7702019

2. BOOM SWING LEVER - Move lever toward the backhoe to swing right, move leveraway from the backhoe to swing left.7702013. LEFT AND RIGHT STABILIZER LEVERS- Movethe left levertoward the backhoeto lower left stabilizer, move the right lever toward the backhoe to lower the rightstabilizer. Move the left lever away from the backhoe to raise left stabilizer, movethe right lever away from the backhoe to raise right stabilizer.1/I /'"C:!.':l""".l\.\\770201 -- Left stabilizer operation shownNOTE: On machines not equipped with stabilizers, these two levers will be replacedby a single lever for raising or lowering the backfill blade. The backfill blade '-'control lever may be located on the backhoe control console or at a remotelocation.4. CROWD LEVER- Move lever toward the backhoe to move diper stick out, movelever away from the backhoe to crowd dipper stick in.77020110

5. BUCKET CONTROL LEVER - Move lever toward the backhoe to dump bucket,move lever away from the backhoe to curl bucket.DUMPCURL770201,78000211

1. BOOM/SWING CONTROL LEVER - Move lever toward the backhoe to lower theboom, move lever away from the backhoe to raise the boom. Moving the lever to theleft will swing the boom to the left, moving the lever to the right will swing the boomto the right.LOWERt780723NOTE: By moving the boom/swing control lever diagonally, the boom can beraised or lowered and swung either right or left at the sametime.2. LEFT AND RIGHT STABILIZER LEVERS- Movethe left levertoward the backhoeto lower the left stabilizer, movethe right levertoward the backhoeto lower the right.stabilizer. Movethe left lever away from the backhoeto raisethe left stabilizer, move.the right lever away from the backhoe to raise the right stabilizer.780733Left stabilizer operation shown.NOTE: On machines not equipped with stabilizers, these two levers will be replacedby a singleleverfor raising or loweringthe backfill blade.Thebackfill blade control lever may be located on the backhoecontrol console orat a remote location.12

3. CROWD/BUCKETCONTROL LEVER - Move the lever toward the backhoe tomove the dipper stick out, move the lever away from the backhoe to crowd the dipperstick in. Moving the lever to the left will curl the bucket, moving the lever to the rightwill dump the bucket.780733NOTE: By moving the crowd/bucket control lever diagonally, the dipper stick canbe crowded in or out and the bucket curled or dumped at the same time.PRE-STARTING SAFETY PRECAUTIONSAWARNING: Before starting engine, study operator's manual safety messages. Read all safety signs on machine.Clear the area of other persons. Learn and practice safeuse of controls before operating.It is your responsibility to understand and follow manufacturer's instructions on machine operation, service, andto observe pertinent laws and regulations. Operator'smanuals may be obtained from your Case dealer.CAUTION: Be sure the operator's area, steps, and grab'handles are free of oil, loose objects, or ice. Duringoperation, stop and take time to clear the operator's areaas required. Remove or secure all maintenance or. personal items. Failure to keep these areas clean couldcause a serious accident.A13

.AACAUTION: Visually check the machine for leaks andbroken, missing, or malfunctioning parts. Be sure all caps,dip sticks, battery covers, etc., are secure before starting.A properly maintained machine will help avoid accidents.WARNING: Always make certain that the work area isclear of any people or obstructions BEFORE operatingmachine.BACKHOEATRANSPORTPOSITIONCAUTION: Engage the transport locking device (s) inbackhoe before trailering or transporting a machine between job sites, or when backhoe is not in use.When transporting a backhoe between job sites or when backhoe is not in use,place the backhoe in transport position as described below.070 and 8070 BACKHOES1. Raisethe boom to align transport link (1) with hole in frame. Engagelink and installlock pin (2).TRANSPORTPOSITIONL770100070 and S070 BACKHOEIMPORTANT: Transport link must be secured to boom with lock pin when backhoeis in use.2. Retract the dipper stick completely.3. Curl the bucket completely in.4. Raisethe stabilizers or backfill blade to full height.14

0100, 0100XR,50100 and R0100 BACKHOES1. Raisethe boom to align transport link (1) with frame. Engagelink and install lockpin (2).I.!WORKPOSITIONTRANSPORTPOSITION77026280100 shown, 0100, 0100XR,R0100 similar.IMPORTANT: Transport link must be secured to boom with lock pin when backhoeis in use.2. Retract dipper stick completely.3. Curl the bucket completely in.4. Raisestabilizers or backfill blade to full height.0130 BACKHOE1. Raisethe boom to engagethe transport lock (1) with the boom cylinder pin. Installthe lock pin (2) and install the hairpin (3).0130 BACKHOENOTE: The lock pin and hairpin can be stored in the hole provided on the boom (4)while the backhoe is in use.15

2. Retract the dipper stick completely.3. Curl the bucket completely in.4. Raise the stabilizers to full height.5. Align the hole in the boom frame with the hole in the pivot casting.L7703430130 BACKHOE6. Install the swing lock pin (1) and the hairpin (2).POSITIONINGATHE MACHINEDANGER: Keep all machine parts away from live electrical lines. If work must be done close to high voltagelines, have the utility disconnect them. It is not necessaryto actually contact a power line for the electricity toground through the machine. If power does groundthrough the machine, remain on the machine and DONOT TOUCH THE MACHINE STRUCTURE. Refer to thefollowing chart.CONDUCTORVOLTAGE50,000 Volts or LessOver 50,000 Volts345,000 to 750,000 VoltsNOTE:16MINIMUMWORKINGCLEARANCEFROMCONDUCTOR10 ft. (3 m)10 ft. (3 m) plus 0.4 ft. (10.2 mm)for each 1,000 volts over 50,000If the above requirements are less stringentrequirements shall apply.MINIMUMTRANSIT CLEARANCEFROMCONDUCTOR4 ft. (1.2 m)10 ft. (3 m)16 ft. (4.8 m)than State requirements,the State

AAWARNING: Know the location of underground cables,water mains, gas lines, etc. Machine contact with underground obstructions could result in personal injury.WARNING: When operating on a slope, always positionthe machine to swing the backhoe to the uphill side ifpossible. Swinging the backhoe to the downhill sidecould tip the machine and result in personal injury.During normal digging, as the bucket penetrates the ground and is filled, there is atendency for the rear of the unit to raise up off the ground and movetoward the bucket.To minimize this tendency on rubber tired machines, engage the creep control. Turnthe control in the direction that will obtain movement of the machine away from theproposed excavation. Adjust control until the machine just begins to move. As themachine begins to move, turn the creep control or variable speed control in theopposite direction just enough to stop movement. This places a load on the grounddrive system, counteracting the pull of the backhoe.NOTE: Some rubber tired machines may not be equipped with a creep control. Engagethe parking brake on these machines to help prevent being pulled toward theexcavation by the backhoe.On track mounted machines, lock both steering brakes by pulling them completelyback into the over-center position.780623CORRECT780624INCORRECTSet the stabilizers or backfill blade so that the machine is leveland the weight is takenoff the rear of the machine. Do not raisethe rear of the machine off the ground. The rearof the machine should rest lightly on the ground, as this will also help prevent beingpulled toward the excavation by the backhoe. Raising the rear of the machine off theground will not only reduce stability, digging depth and impair performance, but mayalso impose unnecessary stresses on the machine.17

Stability is particularly important when operating the backhoe at the extreme swingpositions, because the tendency is to lift one stabilizer and transfer the weight of themachine to the other stabilizer.For added stabilizer stability on the D100 and D130 Backhoe, attach the optionalstabilizer spikes as follows.Insert stabilizer spikes (1) in holes provided in stabilizer pads (2). Secure stabilizerspikes with klik pins (3).18

STARTING THE EXCAVATIONTo familiarize yourself with the operation of the backhoe,practice coordinated useofthe controls in a safe, open area at reduced engine speed. Gradually increaseenginespeed as the technique is mastered.Strive to develop a smooth digging cycle. Avoid abrupt or jerky movements.This isaccomplished by operating two or more controls at the sametime and not allowing thecylinders to reach their limit of travel.To start the excavation, position the backhoeasshown for maximum breakout force.Actuate the crowd cylinder to start the dig cycle. Approximately halfway through thedigging cycle, start to curl the bucket and continue the crowd cycle. If the bucket stalls,raise the boom slightly.NOTE: Do not use too much down pressure when starting to dig, as this will lift themachine and move it out of alignment with the work.19

FILLING THE BUCKETControl the bucket attitude throughout the digging cycle to keep the teeth at theproper angle for best penetration. The bucket should be positioned with the teethparallel to the bottom of the excavation during the digging cycle. This will minimizedragging and scraping the bucket through the ground.770206The depth of penetration is determined by the type and condition of the soil.Use only the dipper and bucket'during the digging cycle. As the dipper movesthebucket through the soil, curl the bucket to maintain the proper bucket position.At the end of the passor when the bucket is full, completely curl the bucket, lift thebucket from the excavation and swing the boom to the dump site.To obtain a cleaner trench and avoid the buildup of material directly in front of thebackhoe, crowd out and completely curl the bucket while starting to lift it out of theexcavation. This will cause any excess material to fall back into the excavation.780631DUMP AND RETURN CYCLEA20WARNING: Before swinging the backhoe to either side,be sure there is ample room and that all persons are out ofthe way.L

Keep the swing-dump-returncycle as brief as possible. Keep the dipper movingoutward and start swinging the boom as soon as the bucket clears the excavation.Continue to extend the dipper and as the spoil pile is approached, start to dump thebucket. When the bucket is empty, the dipperstick and bucket are in position to resumedigging upon return to the excavation.,. IMPORTANT: Avoid constant jarring or hammering-type contact between the spoilpile and the loaded bucket as this may cause premature wearing of thebackhoe pins and bushings.ALIGNMENT CORRECTIONSAlignment corrections of the machine to the excavation may be made as follows:MOVING THE MACHINE FORWARD OR REARWARDTo move a machine either forward or rearward, raise the stabilizers or backfill bladefully, raise the boom, crowd the dipper stick completely in and curl the bucket.With rubber tired machines, disengage the creep control and move the machineforward or rearward using the Mono-Stick.NOTE: Some rubber tired machines may not be equipped with a creep control. Onthese machines, simply disengage the parking brake and move the machineforward or rearward using the Mono-Stick.Whenthe machine has been movedto the desired position, engagethe creep controland adjust as described under "POSITIONING THE MACHINE," resetthe stabilizersorbackfill blade and resume digging.With track mounted machines, disengage both steering brakes and move themachine either forward or rearward using the propulsion lever(s). After machine ispositioned, lock both steering brakes by pulling them completely back into the overcenter position. Reset the stabilizers and resume digging.MOVING THE MACHINE TO THE SIDEMinor corrections to the left or right of the excavation may be madewith the backhoeby lifting the stabilizers or backfill blade clear of the ground, curling the bucketapproximately halfway and crowding in so that the dipper stick is nearly vertical. . ,NOTE: The dipper stick pivot, bucket pivot, and the point where the bucket contactsthe ground should be aligned to reduce the stress on the bucket and crowdcylinders.780622Position the dipper stick slightly forward of vertical and apply enough down pressurewith the boom to raisethe rearof the machineclear of the ground. SLOWLY actuatetheswing cylinder to move to the right or left as required, to realign with the trench.Whenthe machine is in the desired position, resetthe stabilizersor backfill blade andresume digging.21

TRENCHINGAND EXCAVATINGPROCEDURESAWARNING: Before operating in an untarnlliar area, walkaround the full length of the proposed trench site andcheck for hidden holes, drop-offs, or obstacles thatcould cause an accident.ACAUTION: Understand the machine's limitations. Keepit under control at all times. DO NOT TRY TO DO TOOMUCH TOO FAST.ACAUTION: Be extremely careful when working close toan open trench. Serious injury could result from a trenchcave-In.Trenching is the most basic backhoe digging operation. Other digging operationsare only variations of this basic function.While trenching, it is generally important to maintain a level trench bottom. This isaccomplished by setting the bucket at the proper angle of approach.CORRECTINCORRECTINCORRECT780729As the bucket is crowded in, continuously push on the bucket curl lever to maintainthe correct cutting angle. At the same time, pull on the boom lift lever to relieve downpressure and keep the bucket in the same plane.Continue the trench by moving the machine along the centerline of the trench awayfrom the existing excavation. Do not movethe machine beyond approximately one halfthe effective reach of the backhoe. Moving too far will require excessivedown pressurefor digging, plus hand clean-up of the trench bottom. It is better to move a lesseramount than to move too far.22

CONTINUOUSTRENCHINGWITH SPACEDBELLHOLESBegin the operation by digging the trench

0100 Backhoe (with outrigger stabilizers) (0100XR similar) 0100 Backhoe . (wit

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JCB Backhoe Loaders feature heavy duty one piece mainframe, componentised driveline and fully enclosed engine compartment. All fluid and component compartments are lockable using the ignition key. BACKHOE LOADER 4CX/4CX ECO SITEMASTER 4CX ECO MAX. ENGINE POWER: 81kW (109hp) MAX. BACKHOE DIG DEPTH: 6.51 metres MAX. LOADER CAPACITY: 1.3m3 4CX ECO SITEMASTER MAX. ENGINE POWER: 81kW (109hp) MAX .

3CX AND 4CX BACKHOE LOADER. Our most efficient backhoe loader ever. JCB is the world’s number one backhoe loader manufacturer, with 57 years of experience and over 400,000 machines produced – more than anyone else. But we never rest on our laurels. We’re constantly speaking to our customers, asking what they want, looking for that next pioneering innovation that will keep us at the .

3CX ECO/4CX ECO Backhoe Loader World’s most efficient backhoe loader when tested against competitors across typical duty cycles TorqueLock provides up to a 25% fuel saving when roading Integrated quickhitch with forks gives best-in-class visibility and lift capacity Higher backhoe output than any other competitor results in more material moved per hour Lowest backhoe in-cab noise levels .