Link Belt 348 HYLAB 5 Crane Service Manual

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348HYLAB5SERVICEMANUALCONTENTS WET0075---1020606R0 1of2 0606 Book1070 SECTION0General HowToUseThisManual,GeneralServiceInstructions,AndSafetyProceduresSM00---000---001.00 ........ Introduction ES00---00---0007.0R0S EquipmentLayoutES00---03---0073.0R0S SECTION1UpperMechanism PowerTransmissionSystemES01---01---0082.0R0S ..................................................... FrontAndRearDrumShaftStructureAndOutlineES01---10---0070.0R0S FrontAndRearDrumShaftDisassemblyAndReassemblyES01---10---6065.0R0S BoomHoistDrumStructureAndOutlineES01---15---0071.0R0S ClutchStructureAndOutlineES01---17---0056.0R1S .................................................... ClutchMaintenanceChartES01---17---2075.1R0S ....................................................... ClutchTroubleshootingES01---17---4048.1R0S ......................................................... ClutchDisassemblyAndReassemblyES01---17---6052.0R2S SwingMechanismStructureAndOutlineES01---29---0019.0R0S SwingMechanismMaintenanceChartES01---29---2052.0R0S TurntableBearingMaintenanceChartES01---30---2030.6R0S ............................................. TurntableBearingInspectionAndAdjustmentES01---30---5054.0R0S ..................................... PowerDivider(GearBox)StructureAndOilInspectionES01---40---0004.0R0S PowerDivider(GearBox)MaintenanceChartES01---40---2064.0R0S DrumMaintenanceChartES01---42---2074.0R0S DrumIndicatorTroubleshootingES01---50---4001.1R0S .................................................. SECTION2LowerMechanism LowerGeneralExplanationES02---01---0057.0R0S TreadDriveSprocketMaintenanceChartES02---05---2058.0R0S Take---UpIdlerMaintenanceChartES02---07---2062.0R0S Take---UpIdlerInspectionAndOilReplacementES02---07---5051.0R0S .................................... Take---UpIdlerDisassemblyAndReassemblyES02---07---6058.0R0S CarrierRollerMaintenanceChartES02---08---2056.0R0S TrackRollerMaintenanceChartES02---09---2054.0R0S TrackShoeMaintenanceChartES02---10---2054.0R0S TrackShoeInspectionAndAdjustmentES02---10---5057.0R0S ........................................... TrackShoeDisassemblyAndReassemblyES02---10---6057.0R0S ........................................ SideFrameAndGuideShoeMaintenanceChartES02---12---2050.0R0S ................................... TravelReductionGearCaseStructureAndOilInspectionES02---21---5055.0R0S SECTION3ControlSystem FrontAndRearDrumBrakeControlMaintenanceChartES03---05---2071.0R0S ............................ FrontAndRearDrumBrakeControlDisassemblyAndReassemblyES03---05---6072.0R0S FrontAndRearDrumPawlLockMaintenanceChartES03---10---2067.0R0S BoomHoistDrumPawlLockMaintenanceChartES03---12---2062.0R0S SECTION4HydraulicSystem HydraulicCircuit ES04---01---0086.0R0S HydraulicCircuitPressureAdjustmentES04---01---5081.0R0S SECTION5HydraulicUnit HydraulicUnitEquipmentLayoutES05---01---0018.0R0S ................................................. VariableDeliveryPumpOutlineAndStructureES05---02---0067.0R0S VariableDeliveryPumpMaintenanceChartES05---02---2053.0R0S

ClutchCylinderDisassemblyAndReassembly(FrontAndRearDrum)ES05---18---6075.0R0S

HydraulicCylinderTroubleshootingES05---23---4001.1R0S

TreadCylinderDisassemblyAndReassemblyES05---25---6002.0R0S

BoomFootPinCylinderDisassemblyAndReassemblyES05---27---6053.0R0S

RotaryCenterJointDisassemblyAndReassemblyES05---34---6015.0R0S .................................

SwingControlValveStructureAndOperationES05---35---0056.0R0S ......................................

1---SeriesControlValveStructureAndOperationES05---36---0036.0R0S

3---SeriesControlValveStructureAndOperationES05---37---0052.0R0S

4---SeriesControlValveStructureAndOperationES05---38---0044.0R0S

8---SeriesControlValveES05---40---0005.0R0S .........................................................

Take---UpCylinderDisassemblyAndReassemblyES05---57---6051.0R0S ..................................

CounterweightCylinderDisassemblyAndReassemblyES05---59---6055.0R0S .............................

CounterweightPinCylinderDisassemblyAndReassemblyES05---60---6001.0R0S

PawlLockCylinderDisassemblyAndReassemblyES05---61---6001.0R0S

JackCylinderDisassemblyAndReassemblyES05---62---6001.0R0S

LiveMastFlipCylinderDisassemblyAndReassemblyES05---63---6001.0R0S ..............................

Operator’sCabTiltCylinderDisassemblyAndReassemblyES05---64---6001.0R0S ..........................

SECTION13ElectricalSystem

ElectricCircuitDiagramES13---01---0072.0R0S .........................................................

ElectricalSystemStandardizationES13---01---9033.0R0S

StorageBatteryServicingAndInstallationES13---04---5004.0R0S

ElectricEquipmentLayout,WiringAndWireHarnessES13---10---0008.0R0S

SECTION14TighteningTorqueTable

BoltTighteningTorquesES14---02---0004.0R0S .........................................................

348HYLAB5SERVICEMANUALCONTENTS WET0075---1020606R0 2of20606Book1070 VariableDeliveryPumpTroubleshootingES05---02---4009.0R0S VariableDeliveryPumpDisassemblyAndReassemblyES05---02---6040.0R0S GearPump ES05---03---0016.0R0S GearPumpTroubleshootingES05---03---4052.0R0S AccumulatorStructureES05---05---0035.1R1S AccumulatorInspectionES05---05---5032.1R1S AccumulatorDisassemblyAndReassemblyES05---05---6046.1R1S FrontAndRearDrumMotorStructureAndOutlineES05---09---0048.0R0S FrontAndRearDrumMotorTroubleshootingES05---09---4025.0R0S
SwingMotorStructureAndOutlineES05---12---0013.0R0S TravelMotorStructureAndOutlineES05---13---0052.0R0S RotatingJointDisassemblyAndReassemblyES05---14---6029.2R3S RemoteControlValveStructureAndOperationES05---17---0033.0R0S ....................................
BoomHoistMotorStructureAndOutlineES05---11---0032.0R0S
RemoteControlValveTroubleshootingES05---17---4028.0R0S

This manual is used as the guidance "which contains the procedure to diagnose the machine, judge normality/abnormality, isolate the troubled area and carry out repairs soon".

The service life of the machine differs largely depending on the operation method and working conditions. To maintain the initial performance longer, daily operation, inspection and adjustment are very important. Also, to prevent any trouble, not only proper operation but also ordinary maintenance, inspection and adjustment become important. If any trouble occurs, immediately diagnose the trouble and repair it.

To always maintain the machine under optimal conditions, read through this manual before the maintenance work and use this manual as ahelpful guide.

WARNING

• If This Machine Is Not Properly Operated, Serious Injury And Damaging Accidents To The Machine May Result. Read And Understand The Contents Of Operator's Manual Thoroughly Before Operating The Machine. Leave This Manual In A Convenient Place For The Operator Or Maintenance Person Of This Machine And Read It Repeatedly.

• This Machine Has Been Designed Manufactured To Meet The Regulations And Standards Of The Country Of Destination. If This Machine Is Purchased From Another Country Or Is To Be Used In Another Country, There May Be Differences In Required Safety Devices Or Specifications For Safety. Please Contact Us Or Our Distributors If You Have Questions About Meeting The Regulations And Standards For The Country In Which The Machine Will Be Used.

• The material contained in this manual presupposes use by service engineers.

• The explanations described in this manual may differ from the machine delivered. For delivered specifications, refer to the specifications or the sales contract.

• The page sheet system is adopted. The components are divided mainly into main categories and every system is described.

• This manual is totally devoted to information necessary for machine repair: general information pertaining to operation, functional descriptions and safety measures are outside the range of this manual.

• The areas which require special care during working are described and clarified with "DANGER", "WARNING", or "CAUTION". Make efforts to observe safe work to prevent accidents and machine damage.

• Information concerning the engine, carrier and accessories, which can be obtained from the maintenance manuals provided by the manufacturer, in possession of the dealers, or purchased from the manufacturer, is not duplicated in this manual. Refer to those manuals for further information.

• Since the maintenance/inspection, adjustment, Iubrication and others which the user and operator must observe regularly (daily, monthly, yearly and periodically) are described in the operator’s manual, they are omitted from this manual. Recommended to use the operator’s manual together with this manual.

• Recommended to use the parts manual together with this manual.

• If the manual is badly damaged or lost, order it from us or our distributor’s.

• When ordering parts, refer to separate "Parts Manual."

• If there is any thing your don’t understand, contact your nearest distributor.

1/1 9911 ES00-00-0007.0R0S
Introduction

Equipment Layout

1 Crane Main Body External View And Names

Boom Head Machinery

. Boom Top Section

Basic Pendants

Bridle Live Mast

Boom Backstops

Hook Block

Boom Base Section

• For hydraulic equipment layout, refer to ES05-01-00--in this manual.

• For electric equipment layout, refer to ES13-10-00--in this manual.

1/4 0312
ES00-03-0066.0R0S
Counteweights Upper Bail
Lower
Operator's Cab

Equipment Layout

2 Upper Machinery

2.1 Operating Equipment Inside Operator’s Cab

Dome Light

Sun Visor

Roof wiper

Swing Control Lever

Control Panel

Control Unit

Winch Drum Control Levers

Front Wiper

Boom/ Luffing Jib Hoist Control Lever

Bubble Level

Control Panel

Travel Control Levers

Cab Fan

Gate Lock Lever

Winch Drum Brake Pedals

Throttle Pedal

Third • Fourth Drum/ Luffing Boom Hoist Control Lever

2/4 ES00-03-0066.0R0S
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F A N LIGHT ROOF FRONT DC12V

Equipment Layout

2.2 General Equipment Of Upper Machinery

Counterweight Disconnect Cylinder

Hydraulic Oil Reservoir

Boom Hoist Motor

Aux. Hoist Drum Brake

Pump Drive Gear Case

Main Hoist Drum Brake

Live Mast Flip Cylinder

Radiator Battery

Radiator Reservoir Tank

Oil Cooler

Aux. Hoist Motor

Control Valve

Fuel Tank

Main Hoist Motor

Cab Tilt Cylinder

Swing Motor And Reduction Gear

Boom Foot Pin Cylinder

Turntable Bearing

Return Filter Drum Brake Pedal

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