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Hyundai HL975 - User Manual

Hyundai HL975
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HL975
WHEELED LOADER
SERVICE MANUAL
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Summary

SECTION 7 ELECTRICAL SYSTEM

Group 1 Component Location

Details the physical placement of electrical components.

Group 2 Electrical Circuit

Explains the wiring diagrams and circuit configurations.

Group 3 Monitoring System

Covers the machine's monitoring and diagnostic systems.

Group 4 Electrical Component Specification

Lists specifications for various electrical parts.

Group 5 Connectors

Describes the types and functions of electrical connectors.

Group 6 Troubleshooting

Provides guidance for diagnosing electrical issues.

FOREWORD

Manual Structure Overview

Explains how the service manual is organized into sections and groups.

CONVERSION TABLE

TEMPERATURE CONVERSION

SECTION 1 GENERAL

Group 1 Safety Hints

Essential safety precautions for operating and servicing the equipment.

Group 2 Specifications

Provides detailed technical specifications for the machine.

Group 3 Operational Checkout Record Sheet

A checklist for pre-operation and post-service checks.

GROUP 2 SPECIFICATIONS

1. MAJOR COMPONENT

Illustrates the main components of the wheeled loader.

SPECIFICATIONS

1) WITH BOLT-ON CUTTING EDGE TYPE BUCKET (HL975)

Detailed technical specifications for the HL975 with a specific bucket type.

SPECIFICATIONS

WITH BOLT-ON CUTTING EDGE TYPE BUCKET (HL975 XT)

Technical specifications for the HL975 XT with a specific bucket type.

SPECIFICATIONS

2) WITH 1-PIECE TOOTH TYPE BUCKET (HL975)

Technical specifications for the HL975 with a 1-piece tooth bucket.

SPECIFICATIONS

WITH 1-PIECE TOOTH TYPE BUCKET (HL975 XT)

Technical specifications for the HL975 XT with a 1-piece tooth bucket.

WEIGHT

Itemized Component Weights

Lists the weight of various assemblies and components in kg and lb.

SPECIFICATION FOR MAJOR COMPONENTS

1) ENGINE

Detailed specifications for the Cummins QSG12 engine.

2) MAIN PUMP

Specifications for the variable tandem piston pump used for steering and loader.

FAN + BRAKE PUMP SPECIFICATIONS

MAIN CONTROL VALVE SPECIFICATIONS

ELECTRO-HYDRAULIC BLOCK SPECIFICATIONS

REMOTE CONTROL VALVE (EH TYPE) SPECIFICATIONS

REMOTE CONTROL VALVE (FNR TYPE) SPECIFICATIONS

CYLINDER SPECIFICATIONS

Boom cylinder

Bore, rod, and stroke dimensions for the boom cylinder.

Bucket cylinder (HL975)

Bore, rod, and stroke for the HL975 bucket cylinder.

Bucket cylinder (HL975 XT)

Bore, rod, and stroke for the HL975XT bucket cylinder.

Steering cylinder

Bore, rod, and stroke dimensions for the steering cylinder.

DYNAMIC POWER TRANSMISSION DEVICES

4-speed transmission (std)

Specifications for the standard 4-speed transmission system.

5-speed transmission (opt)

Specifications for the optional 5-speed transmission system.

Axle

Details on front and rear axle specifications.

Brakes

Information on the four-wheel, wet-disc type brakes.

Steering

Covers the full hydraulic, articulated steering system.

TIGHTENING TORQUE

1) BOLT AND NUT

Torque values for coarse and fine thread bolts and nuts.

PIPE AND HOSE TORQUE (FLARE TYPE)

PIPE AND HOSE TORQUE (ORFS TYPE)

FITTING TORQUE

TIGHTENING TORQUE OF MAJOR COMPONENT

Engine Mounting Torque

Torque specifications for engine mounting bolts and nuts.

Hydraulic System Torque

Torque values for mounting bolts in the hydraulic system.

Power Train System Torque

Torque specifications for power train system mounting bolts.

Other Component Torque

Torque specifications for counterweight, seat, and ROPS.

RECOMMENDED LUBRICANTS

Engine Oil Pan Lubrication

Recommended engine oils based on ambient temperature.

Transmission Lubrication

Recommended transmission oil types.

Axle Lubrication

Recommended UTTO fluids for axles.

Hydraulic Tank Lubrication

Recommended hydraulic oils and system fluids.

Fuel Tank Lubrication

Recommended diesel fuel type.

Fitting (Grease Nipple) Lubrication

Recommended grease types for fittings.

Radiator (Reservoir Tank) Fluid

Recommended antifreeze and coolant types.

OPERATIONAL CHECKOUT RECORD SHEET

1. Monitor Indicator and Gauge Checks (Engine OFF)

Checklist for engine off indicator and gauge verification.

2. Transmission, Axle, Engine Checks

Checks for transmission, axle, engine, and warning systems.

3. Monitor Indicator and Gauge Checks (Engine Running)

Checklist for engine running indicator and gauge verification.

OPERATIONAL CHECKOUT RECORD SHEET

4. Brake System and Clutch Cut-off Checks

Checks related to the brake system and clutch cut-off function.

5. Driving Checks

Procedures for checking driving system operations.

6. Hydraulic System Checks

Procedures for checking hydraulic system performance.

OPERATIONAL CHECKOUT RECORD SHEET

7. Steering System Checks

Checks for the steering system's functionality.

8. Accessory Checks

Checks for various machine accessories and lights.

9. Cab Components and Vandal Protection Checks

Checks for cab structure, latches, and vandal protection.

SECTION 2 ENGINE

Group 1 Structure and Function

Explains the structural components and operation of the engine.

Group 2 Engine Speed and Stall RPM

Details engine speed parameters and stall RPM procedures.

ENGINE FUEL SYSTEM

Hyundai HL975 Specifications

General IconGeneral
BrandHyundai
ModelHL975
CategoryFront End Loaders
LanguageEnglish

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