New Holland LB75.B User manual

CONSTRUCTION
CONSTRUCTION
SERVICE
MANUAL
LB75.B
LB90.B
LB95.B
LB110.B
LB115.B 4WS
BACKHOE LOADERS
6036702103

COMPANY POLICY
Company policy, which is one of continuous improvement, reserves the right to make changes in design and speci-
fication at any time without notice and without obligation to modify units previously built.
All data given in this book is subject to production variations. Dimensions and weights are approximate only and
the illustrations do not necessarily show tractors in standard condition. For exact information about any particular
machine please consult your Dealer.
PARTS AND ACCESSORIES
Genuine parts and accessories have been specifically designed for these machines.
We would like to point out that '' non-genuine" parts and accessories have NOT been examined and released by
the Company. The installation and or use of such products could have negative effects upon the design characte-
ristics of your machine and thereby affect its safety. The Company is not liable for any damage caused by the use
of "non-genuine" parts and accessories.
MODEL CODES
The complete range of Backhoe Loaders described in this manual are identified below :
EUR NA
FB
695
FB FB
LB
LB
100.2 200.2
LB
LB LB LB
580 590 SM 110.2
LB
95.B
LB
115.B
895
4WS 115.B
90.B 95.B 110.B 4WS SR SR -75.B -110.B 4WS
695
8200 LB
8100 8110
SR 4WS 90.B
Moteur 95HP X X X X X
FAGE0454C
Moteur 110HP X X X X X X X X X X
FAGE0484G
PowerShuttle X X X X X X X X X X
PowerShift X X X X X X X X X
Cab X X X X X X X X X X X X X
Euro. cab X X X X X
ROPS X X X X X
Central Pivot X X X X X X X X X
Side Shift X X X X X X X X X X X
2WD X X
4WD X X X X X X X X X X X X X X X
4WS X X X X
Mechanical X X X X X X X X X X X X X X X
control
Pilot control X X X X X X X X X X X X X X
The vehicles listed above may not be available in all countries or markets, therefore for the latest information con-
sult your local authorised dealer.
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CONTENTS
SECTION 00 -HEALTH, SAFETY, MAINTENANCE
CHAPTER 1 -General
Description Page
General Specifications ...................................................................... 1
SECTION 17 -TORQUE CONVERTOR
CHAPTER 1 -With Powershuttle Transmission
Description Page
General Specifications ...................................................................... 1
Overhaul ................................................................................. 4
CHAPTER 2 -With Powershift Transmission
Description Page
General Specifications ...................................................................... 1
Overhaul ................................................................................. 4
SECTION 21 -TRANSMISSIONS
CHAPTER 1 -4x4 Compact Shuttle
Description Page
General Specifications ...................................................................... 1
Description and Operation ................................................................... 5
Overhaul .................................................................................. 28
CHAPTER 2 -Powershift Introduction
Description Page
General Specifications ...................................................................... 1
Description and Operation ................................................................... 2
Removal .................................................................................. 35
CHAPTER 3 -Powershift Operating Lever
Description Page
General Specifications ...................................................................... 1
Fault Finding ............................................................................... 14
CHAPTER 4 -Powershift Overhaul (includes 4 Wheel Steer)
Description Page
General Specifications ...................................................................... 1
Fault Finding ............................................................................... 5
Overhaul .................................................................................. 8
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2 CONTENTS
SECTION 25 -FRONT AXLES
CHAPTER 1 -Front Axle for 2 and 4 Wheel Drive Only
Description Page
General Specifications ...................................................................... 1
Overhaul ................................................................................. 1O
CHAPTER 2 -Front Axle for 4 Wheel Steer Only
Description Page
General Specifications ...................................................................... 1
Overhaul ................................................................................. 3
CHAPTER 3 -Front Axle
Description Page
Identification ............................................................................... 1
Overhaul .................................................................................. 4
CHAPTER 7 -Front Axle
Description Page
Identification ............................................................................... 1
Overhaul .................................................................................. 4
CHAPTER 10- Front Axle
Description Page
Identification ............................................................................... 1
SECTION 27 -REAR AXLES
CHAPTER 1 -Rear Axle with Foot Operated Diff Lock for 2 and 4 Wheel Drive Only
Description Page
General Specifications ...................................................................... 1
Overhaul ................................................................................. 6
CHAPTER 2 -Rear Axle with Electrically Operated Diff Lock for 2 and 4 Wheel Drive
Only
Description Page
General Specifications ...................................................................... 1
Overhaul ................................................................................. 8
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CONTENTS
CHAPTER 3 -Rear Axle for 4 Wheel Steer Only
Description Page
General Specifications ...................................................................... 1
Overhaul ................................................................................. 2
CHAPTER 4 -Rear Axle
Description Page
Identification ............................................................................... 1
SECTION 33 -BRAKE SYSTEMS
CHAPTER 1 -Brakes for 2 and 4 Wheel Drive Only
Description Page
General Specifications ...................................................................... 1
Overhaul ................................................................................. 8
CHAPTER 2 -Brakes for 4 Wheel Steer Only
Description Page
General Specifications ...................................................................... 1
Overhaul ................................................................................. 5
SECTION 35 -HYDRAULIC SYSTEMS
CHAPTER 1 -Hydraulic Circuits and Components for HUSCO Only
Description Page
General Specifications ...................................................................... 2
Hydraulic Valve Spool Seals ................................................................. 15
Stabliliser and Extendible Dipper Control Valves ................................................ 21
Loader Control Valve ........................................................................ 33
Backhoe Control Valve ...................................................................... 49
CHAPTER 2 -Fault Finding, Pressure and Flow Testing for HUSCO Only
Description Page
General Specifications ...................................................................... 2
Fault Finding ............................................................................... 6
Pressure Testing ........................................................................... 11
Flow Testing (Pump Performance Test) ........................................................ 21
3
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4 CONTENTS
CHAPTER 3 - Hydraulic Circuits and Components for REXROTH
Description Page
General Specifications ...................................................................... 1
Description and Operation ................................................................... 5
Hydraulic Circuits ........................................................................... 10
CHAPTER 4 - Fault Finding, Pressure and Flow Testing for REXROTH Only
Description Page
Specifications .............................................................................. 1
Preliminary Checks ......................................................................... 2
Fault Finding Charts ........................................................................ 3
Pressure Testing ........................................................................... 7
Steering Stndby ............................................................................ 7
Steering Circuit Relief Valve ................................................................. 7
System Pressure Relief Valve ................................................................ 8
Loader Bucket Relief Valve (Piston End) ....................................................... 9
Extendible Dipper Relief Valve (Piston End) .................................................... 8
Swing System Relief Valve .................................................................. 9
Dipperstick Bucket and Boom Relief Valves .................................................... 9
Flow Testing (Pump Performance Test) ........................................................ 10
CHAPTER 5 - Control Valves for REXROTH with Mechanical or Hydraulic Control
Description Page
General Specifications ...................................................................... 1
Loader Control Valve Overhaul ............................................................... 2
Backhoe Control Valve Overhaul ............................................................. 3
Control Valve Disassembly .................................................................. 4
Control Valve Section Disassembly ........................................................... 8
CHAPTER 6 - Swing System and Hydraulic Cylinders
Description Page
General Specifications ...................................................................... 1
Swing System Description and Operation ...................................................... 3
Hydraulic Cylinders Description and Operation ................................................. 6
Backhoe and Loader Cylinders -Removal and Installation ...................................... 9
Backhoe and Loader Cylinder Overhaul ....................................................... 18
Swing Cylinder Removal and Overhaul ........................................................ 22
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CHAPTER 7 -Hydraulic Pump
Description
CONTENTS
Page
General Specifications ...................................................................... 1
Tightening torques .......................................................................... 1
Description and Operation ................................................................... 2
Pump Overhaul ............................................................................ 5
Flow Divider Overhaul ...................................................................... 7
Rear Pump Overhaul ....................................................................... 8
Front Pump Overhaul ....................................................................... 11
CHAPTER 8 -Rexroth Control Blocks
Description Page
General Specifications ...................................................................... 1
Tightening torques .......................................................................... 1
Exploded Wiew of the Lever ................................................................. 2
Overhaul of the Control Block ............................................................... 5
SECTION 39 -VEHICLE CHASSIS
CHAPTER 1 -CHASSIS COMPONENTS
Description Page
General Specifications ...................................................................... 1
Overhaul ................................................................................. 6
SECTION 41 -STEERING SYSTEMS
CHAPTER 1 -Steering for 2 and 4 Wheel Drive Only
Description Page
General Specifications ...................................................................... 1
Fault Finding ............................................................................... 7
Overhaul ................................................................................. 8
CHAPTER 2 -Steering for 4 Wheel Steer Only
Description Page
General Specifications ...................................................................... 1
Fault Finding ............................................................................... 7
Overhaul ................................................................................. 1O
5
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6 CONTENTS
SECTION 50 -CAB HEATING AND AIR CONDITIONING
CHAPTER 1 -Cab Heating
Description Page
General Specifications ...................................................................... 1
Fault Finding ............................................................................... 5
Overhaul .................................................................................. 6
CHAPTER 2 -Cab Air Conditioning
Description Page
General Specifications ...................................................................... 1
Description & operation ..................................................................... 5
Fault Finding ............................................................................... 16
Overhaul .................................................................................. 38
SECTION 55 -ELECTRICAL SYSTEM
CHAPTER 1 -System General
Description Page
Electrical Equipment Specifications ........................................................... 1
Tempory wiring harness repair ............................................................... 2
Electrical System General Fault Finding ....................................................... 3
CHAPTER 2.1- Powershuttle Wiring Diagrams (N/A and Europeen Model)
Description Page
Fuses and Relays .......................................................................... 2
Components .............................................................................. 3
Connector ................................................................................. 4
Wiring Diagrams (N/A and Europeen Model) ................................................... 6
Connectors (Details) ........................................................................ 18
CHAPTER 2.2- Powershift Wiring Diagrams (N/A and Europeen Model)
Description Page
Fuses and Relays .......................................................................... 2
Components .............................................................................. 3
Connector ................................................................................. 4
Wiring Diagrams (N/A and Europeen Model) ................................................... 6
Connectors (Details) ........................................................................ 18
CHAPTER 2.3- Powershift 4 WS Wiring Diagrams (N/A and Europeen Model)
Description Page
Fuses and Relays .......................................................................... 2
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CONTENTS
Components .............................................................................. 3
Connector ................................................................................. 4
Wiring Diagrams (N/A and Eurpeen Model ..................................................... 6
Connectors (Details) ........................................................................ 18
CHAPTER 2.4- ROPS Wiring Diagrams (N/A and Europeen Model)
Description Page
Fuses and Relays .......................................................................... 2
Components .............................................................................. 3
Connector ................................................................................. 4
Wiring Diagrams (N/A and Europeen Model) ................................................... 6
Connectors (Details) ........................................................................ 19
CHAPTER 3 - Starter Motor 2,7kW
Description Page
General Specifications ...................................................................... 1
Fault Finding ............................................................................... 3
7
Exploded Wiew of the Starter ................................................................ 6HA
CHAPTER 4 - Alternator 90A
Description Page
General Specifications ...................................................................... 1
Fault Finding ............................................................................... 4
Exploded Wiew of the Alternator ............................................................. 6
CHAPTER 5 - Battery
Description Page
General Specifications ...................................................................... 1
Removal and Installation .................................................................... 2
Battery Maintenance and Tests ............................................................... 3
Battery Charging ........................................................................... 4
Common Causes of Battery Failure ........................................................... 6
CHAPTER 6 - Service Diagnostics, Calibration and Immobiliser
Description Page
Service Indicators .......................................................................... 1
Alarms and Diagnostics Signalling ............................................................ 2
Calibration of speedometer .................................................................. 4
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