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New Holland LB90.B User Manual

New Holland LB90.B
41 pages
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CONSTRUCTION
CONSTRUCTION
SERVICE
MANUAL
LB75.B
LB90.B
LB95.B
LB110.B
LB115.B 4WS
BACKHOE LOADERS
6036702103

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New Holland LB90.B Specifications

General IconGeneral
BrandNew Holland
ModelLB90.B
CategoryCompact Loader
LanguageEnglish

Summary

Service Manual

Section 00 Health, Safety, Maintenance

General instructions covering health, safety, and maintenance procedures.

Section 17 Torque Convertor

Details on torque converter specifications and operation for powershuttle transmission.

Section 21 Transmissions

Specifications and operation for the 4x4 Compact Shuttle transmission.

Section 21 Transmissions

Introduction to the powershift transmission system.

Section 21 Transmissions

Details on the powershift operating lever, including fault finding.

Section 21 Transmissions

Overhaul procedures for the powershift system with 4-wheel steer.

Section 25 Front Axles

Front Axle for 2 and 4 Wheel Drive Only

Specifications and overhaul for front axles on 2 and 4-wheel drive models.

Front Axle for 4 Wheel Steer Only

Specifications and overhaul for front axles on 4-wheel steer models.

Front Axle Identification and Overhaul

Identification and overhaul of the front axle.

Front Axle Identification and Overhaul Procedures

Identification and overhaul procedures for a specific front axle.

Front Axle Identification

Identification details for a front axle.

Section 27 Rear Axles

Rear Axle with Foot Operated Diff Lock

Specifications and overhaul for rear axles with foot diff lock.

Rear Axle with Electric Diff Lock

Specifications and overhaul for rear axles with electric diff lock.

Section 33 Brake Systems

Brakes for 2 and 4 Wheel Drive Only

Specifications and overhaul for brake systems on 2/4 wheel drive models.

Brakes for 4 Wheel Steer Only

Specifications and overhaul for brake systems on 4-wheel steer models.

Section 35 Hydraulic Systems

HUSCO Hydraulic Circuits and Components

Hydraulic circuits and components for HUSCO systems.

HUSCO Fault Finding and Testing

Troubleshooting and testing for HUSCO hydraulic systems.

Section 35 Hydraulic Systems

REXROTH Hydraulic Circuits and Components

Hydraulic circuits and components for REXROTH systems.

REXROTH Fault Finding and Testing

Troubleshooting and testing for REXROTH hydraulic systems.

REXROTH Control Valves

Control valves for REXROTH systems, mechanical or hydraulic.

Swing System and Hydraulic Cylinders

Details on swing system and hydraulic cylinders.

Section 35 Hydraulic Systems

Hydraulic Pump

Specifications, overhaul, and testing of the hydraulic pump.

Rexroth Control Blocks

Specifications and overhaul for Rexroth control blocks.

Section 39 Vehicle Chassis

Chassis Components

General specifications and overhaul of chassis components.

Section 41 Steering Systems

Steering for 2 and 4 Wheel Drive

Specifications, fault finding, and overhaul for steering systems.

Steering for 4 Wheel Steer

Specifications, fault finding, and overhaul for 4-wheel steer systems.

Section 50 Cab Heating and Air Conditioning

Cab Heating

Specifications, fault finding, and overhaul for cab heating.

Cab Air Conditioning

Specifications, operation, fault finding, and overhaul for cab AC.

Section 55 Electrical System

System General

General electrical system specifications and fault finding.

Powershuttle Wiring Diagrams

Wiring diagrams for Powershuttle models.

Powershift Wiring Diagrams

Wiring diagrams for Powershift models.

Powershift 4 WS Wiring Diagrams

Wiring diagrams for Powershift 4 WS models.

Section 55 Electrical System

ROPS Wiring Diagrams

Wiring diagrams for ROPS models.

Starter Motor 2,7kW

Specifications, fault finding, and exploded view of the starter motor.

Alternator 90A

Specifications, fault finding, and exploded view of the alternator.

Battery Maintenance and Testing

Specifications, removal, maintenance, and charging of the battery.

Service Diagnostics and Immobiliser

Service diagnostics, calibration, and immobiliser functions.

Section 55 Electrical System

Component Testing

Procedures for testing electrical components.

Section 82 Loader

Loader Frame, Controls and Buckets for 2/4 WD

Loader frame, controls, and buckets for 2/4 WD models.

Loader Frame, Controls and Buckets for 4 Wheel Steer

Loader frame, controls, and buckets for 4-wheel steer models.

Section 84 Backhoe

Backhoe, Boom and Dipperstick Assembly

Backhoe, boom, and dipperstick assembly details.

Section 00 Maintenance

General Instructions

General instructions for maintenance and repair operations.

Important Notice

Crucial advice for authorized workshops and service operations.

Shimming Procedure

Procedure for adjusting shims using a micrometer.

Rotating Shaft Seals Installation

Instructions for correct installation of rotating shaft seals.

Section 00 Maintenance

Spare Parts Ordering

Guidelines for ordering and using genuine spare parts.

Equipment Notes

Information regarding equipment used in the manual's procedures.

Terminology Notices

Clarifications on terminology like 'front', 'rear', 'right', 'left'.

Moving Machine with Battery Removed

Procedure for moving the machine with the battery disconnected.

Section 00 Maintenance

Safety Rules

Essential safety rules and precautions for service operations.

Accident Prevention

Proactive measures and general advice to prevent accidents.

Section 00 Maintenance

Start Up Procedures

Instructions and precautions for starting the engine.

Engine Checks and Procedures

Important checks and procedures related to the engine.

Section 00 Maintenance

Electrical Systems Safety

Safety and procedures for working on electrical systems.

Hydraulic Systems Precautions

Safety precautions for hydraulic systems and fluid leaks.

Wheels and Tyres Maintenance

Procedures and safety for checking and maintaining wheels and tires.

Section 00 Maintenance

Ecological Considerations

Recommendations for environmentally responsible disposal and handling.

Helpful Hints

Practical tips and advice for various maintenance tasks.

Section 00 Maintenance

Service Techniques

General service techniques and best practices.

Hoses and Tubes Installation

Procedures for inspecting, replacing, and installing hoses and tubes.

'O' Ring Flat Face Seal Fittings

Procedure for repairing 'O' ring face seal connectors.

Section 00 Maintenance

'O' Ring Torque Values

Torque values for 'O' ring flat face seal fittings.

Sealer Specifications

Specifications and part numbers for various sealers.

Hardware Torque Values

General hardware torque values for the Backhoe Loader.

Section 00 Maintenance

Minimum Hardware Tightening Torques (Metric)

Metric hardware tightening torque specifications.

Hardware Identification

Identification of hex cap screws, carriage bolts, and nuts.

Section 00 Maintenance

Minimum Hardware Tightening Torques (Inch)

Inch hardware tightening torque specifications.

Hardware Identification

Identification of cap screws, carriage bolts, and locknuts.

Section 17 Torque Convertor

Specifications

Technical specifications for the torque converter.

Tightening Torques

Torque values for assembly and disassembly of the torque converter.

Description and Operation

Detailed explanation of the torque converter's function and parts.

Fault Finding

Troubleshooting common problems with the torque converter.

Overhaul Procedures

Procedures for overhauling the torque converter.

Engine Stall Speeds

Engine stall speed specifications for the torque converter.

Hydraulic Tests

Procedures for hydraulic testing of the torque converter.

Torque Specifications

Specific torque values for torque converter components.

Section 17 Torque Convertor

Description and Operation

Detailed explanation of the torque converter's function and parts.

Section 17 Torque Convertor

Fault Finding

Troubleshooting common problems with the torque converter.

Overhaul Procedures

Procedures for overhauling the torque converter.

Section 17 Torque Convertor

Inspection

Inspection of torque converter parts for wear or damage.

Re-assembly

Procedures for re-assembling the torque converter.

Stall Test

Procedure for performing a torque converter stall test.

Section 17 Torque Convertor

Stall Speed

Specific stall speed values for different engine models.

Section 17 Torque Convertor

Specifications

Technical specifications for the powershift torque converter.

Tightening Torques

Torque values for powershift torque converter assembly.

Description and Operation

Explanation of powershift torque converter function and parts.

Fault Finding

Troubleshooting common problems with powershift torque converters.

Overhaul Procedures

Procedures for overhauling powershift torque converters.

Engine Stall Speeds

Engine stall speed for powershift transmission.

Torque Convertor Ratio

Ratio specification for the powershift torque converter.

Hydraulic Tests

Hydraulic test specifications for the powershift torque converter.

Torque Specifications

Specific torque values for powershift torque converter components.

Section 17 Torque Convertor

Description and Operation

Explanation of powershift torque converter function and parts.

Section 17 Torque Convertor

Fault Finding

Troubleshooting common problems with powershift torque converters.

Overhaul Procedures

Procedures for overhauling powershift torque converters.

Section 17 Torque Convertor

Inspection

Inspection of powershift torque converter parts.

Re-assembly

Procedures for re-assembling powershift torque converters.

Stall Test

Procedure for performing a stall test on powershift torque converters.

Section 17 Torque Convertor

Stall Torque

Stall torque specifications for powershift transmission models.

Section 21 Transmissions

Specifications

Technical specifications for the 4x4 Compact Shuttle transmission.

Tightening Torques

Torque values for transmission assembly.

Special Tools

List of special tools required for transmission service.

Description and Operation

Explanation of the 4x4 Compact Shuttle transmission's function.

Fault Finding

Troubleshooting common problems with the transmission.

Overhaul Procedures

Procedures for overhauling the transmission.

Stall Speeds

Stall speed specifications for the transmission.

Torque Convertor Ratio

Ratio specification for the transmission's torque converter.

Gear Ratios

Gear ratios for the synchronized 4x4 transmission.

Sealant Specifications

Sealant specifications for the transmission.

Cold Start By-pass Valve Spring

Specifications for the cold start by-pass valve spring.

Forward Clutch Spring

Specifications for the forward clutch spring.

Section 21 Transmissions

Clutch Piston Spring

Specifications for the clutch piston spring.

Detent Spring

Specifications for the detent spring.

End Float Specifications

End float specifications for various shafts.

Hydraulic Tests

Hydraulic test specifications for the transmission.

Cooler Flow Test

Specifications for the transmission cooler flow test.

Torque Specifications

Specific torque values for transmission components.

Section 21 Transmissions

Special Tools

List of special tools and their applications for transmission service.

Section 21 Transmissions

Description and Operation

Description and operation of the transmission system.

Gear Ratios

Gear ratios for the synchronized 4x4 transmission.

Transmission Control

Details on transmission control, including gearshift and reversing levers.

Section 21 Transmissions

Torque Converter

Information on the torque converter's sealed unit nature and actuation.

Section 21 Transmissions

Gear Train

Description of the transmission's gear train and components.

Gear Shift Mechanism

Explanation of the gear shift mechanism and synchronizers.

Parking Brake

Details on the transmission's parking brake system.

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