Description
Link Belt Crane 348 Hylab 5 Service Manual
Link Belt Crane 348 Hylab 5 Index:
SECTION 0 General
How To Use This Manual, General Service Instructions, And Safety Procedures . . . . . . . . SM00—000—001.00
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES00—00—0007.0R0S
Equipment Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES00—03—0073.0R0S
SECTION 1 Upper Mechanism
Power Transmission System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES01—01—0082.0R0S
Front And Rear Drum Shaft Structure And Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES01—10—0070.0R0S
Front And Rear Drum Shaft Disassembly And Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . ES01—10—6065.0R0S
Boom Hoist Drum Structure And Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES01—15—0071.0R0S
Clutch Structure And Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES01—17—0056.0R1S
Clutch Maintenance Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES01—17—2075.1R0S
Clutch Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES01—17—4048.1R0S
Clutch Disassembly And Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES01—17—6052.0R2S
Swing Mechanism Structure And Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES01—29—0019.0R0S
Swing Mechanism Maintenance Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES01—29—2052.0R0S
Turntable Bearing Maintenance Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES01—30—2030.6R0S
Turntable Bearing Inspection And Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES01—30—5054.0R0S
Power Divider (Gear Box) Structure And Oil Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES01—40—0004.0R0S
Power Divider (Gear Box) Maintenance Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES01—40—2064.0R0S
Drum Maintenance Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES01—42—2074.0R0S
Drum Indicator Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES01—50—4001.1R0S
SECTION 2 Lower Mechanism
Lower General Explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES02—01—0057.0R0S
Tread Drive Sprocket Maintenance Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES02—05—2058.0R0S
Take—Up Idler Maintenance Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES02—07—2062.0R0S
Take—Up Idler Inspection And Oil Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES02—07—5051.0R0S
Take—Up Idler Disassembly And Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES02—07—6058.0R0S
Carrier Roller Maintenance Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES02—08—2056.0R0S
Track Roller Maintenance Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES02—09—2054.0R0S
Track Shoe Maintenance Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES02—10—2054.0R0S
Track Shoe Inspection And Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES02—10—5057.0R0S
Track Shoe Disassembly And Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES02—10—6057.0R0S
Side Frame And Guide Shoe Maintenance Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES02—12—2050.0R0S
Travel Reduction Gear Case Structure And Oil Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . ES02—21—5055.0R0S
SECTION 3 Control System
Front And Rear Drum Brake Control Maintenance Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES03—05—2071.0R0S
Front And Rear Drum Brake Control Disassembly And Reassembly . . . . . . . . . . . . . . . . . . ES03—05—6072.0R0S
Front And Rear Drum Pawl Lock Maintenance Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES03—10—2067.0R0S
Boom Hoist Drum Pawl Lock Maintenance Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES03—12—2062.0R0S
SECTION 4 Hydraulic System
Hydraulic Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES04—01—0086.0R0S
Hydraulic Circuit Pressure Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES04—01—5081.0R0S
SECTION 5 Hydraulic Unit
Hydraulic Unit Equipment Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—01—0018.0R0S
Variable Delivery Pump Outline And Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—02—0067.0R0S
Variable Delivery Pump Maintenance Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—02—2053.0R0S
Variable Delivery Pump Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—02—4009.0R0S
Variable Delivery Pump Disassembly And Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—02—6040.0R0S
Gear Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—03—0016.0R0S
Gear Pump Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—03—4052.0R0S
Accumulator Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—05—0035.1R1S
Accumulator Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—05—5032.1R1S
Accumulator Disassembly And Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—05—6046.1R1S
Front And Rear Drum Motor Structure And Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—09—0048.0R0S
Front And Rear Drum Motor Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—09—4025.0R0S
Boom Hoist Motor Structure And Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—11—0032.0R0S
Swing Motor Structure And Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—12—0013.0R0S
Travel Motor Structure And Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—13—0052.0R0S
Rotating Joint Disassembly And Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—14—6029.2R3S
Remote Control Valve Structure And Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—17—0033.0R0S
Remote Control Valve Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—17—4028.0R0S
Clutch Cylinder Disassembly And Reassembly (Front And Rear Drum) . . . . . . . . . . . . . . . . ES05—18—6075.0R0S
Hydraulic Cylinder Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—23—4001.1R0S
Tread Cylinder Disassembly And Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—25—6002.0R0S
Boom Foot Pin Cylinder Disassembly And Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—27—6053.0R0S
Rotary Center Joint Disassembly And Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—34—6015.0R0S
Swing Control Valve Structure And Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—35—0056.0R0S
1—Series Control Valve Structure And Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—36—0036.0R0S
3—Series Control Valve Structure And Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—37—0052.0R0S
4—Series Control Valve Structure And Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—38—0044.0R0S
8—Series Control Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—40—0005.0R0S
Take—Up Cylinder Disassembly And Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—57—6051.0R0S
Counterweight Cylinder Disassembly And Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—59—6055.0R0S
Counterweight Pin Cylinder Disassembly And Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—60—6001.0R0S
Pawl Lock Cylinder Disassembly And Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—61—6001.0R0S
Jack Cylinder Disassembly And Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—62—6001.0R0S
Live Mast Flip Cylinder Disassembly And Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—63—6001.0R0S
Operator’s Cab Tilt Cylinder Disassembly And Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . ES05—64—6001.0R0S
SECTION 13 Electrical System
Electric Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES13—01—0072.0R0S
Electrical System Standardization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES13—01—9033.0R0S
Storage Battery Servicing And Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES13—04—5004.0R0S
Electric Equipment Layout, Wiring And Wire Harness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES13—10—0008.0R0S
SECTION 14 Tightening Torque Table
Bolt Tightening Torques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES14—02—0004.0R0S
SERVICE MANUAL 1114 KEYSHEET
Book 1111 1 of 2
348 HYLAB 5 Series – Master Keysheet (Boom)
(L9 Prefix On Crane Serial Number)
AREA 00 GENERAL INFORMATION
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SM00- 000- 000.00 Service Manual General Usage & Instructions
AREA 06 UPPER ENGINE
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SM06- 044- 002.00 Generator & Light Plant Schematic Diagram
AREA 07 HYDRAULIC POWER SUPPLY
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SM07- 000- 000.00 Hydraulic Schematic Diagram Symbol Legend
SM07- 008- 067.00 Foot Control Valve, Recondition (Boom Hoist)
SM07- 008- 174.00 Boom Hoist Foot Pedal Control Valve, R & I
SM07- 008- 175.00 Boom Hoist Control Lever Valve, R & I
SM07- 018- 001.00 Hydraulic System Tube Fittings
AREA 09 TUBULAR BOOM, FLY, & JIB
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SM09- 001- 002.00 Repairing Damaged Tubular Booms, Flys, & Jibs
SM09- 002- 006.00 Live Mast Self Assembly Cylinder, Recondition (Seabee)
SM09- 002- 013.00 Boom Self Assembly Cylinder Relief Valve, Recondition
SM09- 002- 014.00 Boom Self Assembly Cylinder, R & I
SM09- 009- 002.00 Hydraulic Backstop Cylinder, R & I
SM09- 009- 003.00 Hydraulic Backstop Cylinder, Recondition (Generation 1)
SM09- 009- 004.00 Hydraulic Backstop Valve Block, R & I
SM09- 009- 005.00 Hydraulic Backstop Valve Block, Illustrated
SM09- 009- 006.00 Hydraulic Backstop Cylinder, Recondition (Generation 2)
AREA 18 SPECIAL ATTACHMENTS
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SM18- 000- 001.00 Capscrew Torques
SM18- 000- 002.00 Bearing, Gear, Shaft, & Housing Inspection
SM18- 000- 003.00 Crane System Schematics
