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Mercedes-Benz U 4023 User Manual

Mercedes-Benz U 4023
121 pages
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Extreme off-road Unimog BlueTec 6
Technical Manual
August 2014 issue

Table of Contents

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Mercedes-Benz U 4023 Specifications

General IconGeneral
BrandMercedes-Benz
ModelU 4023
CategoryTrucks
LanguageEnglish

Summary

Overview of Models and Components

Product Concept

Compares Unimog Implement Carrier and Extreme off-road versions.

Extreme Off-road Capability

Details features like flexible frame, portal axles, and fording capability.

The Unimog Concept for Extreme Torsional Flexibility

Explains axle articulation via torque tube and coil springs.

Fording Capability

Describes features enabling water fording up to 80 cm.

Frame

Engine

Engine Concept

Describes the Mercedes-Benz OM934 engine, its technology, and advantages.

Exhaust Gas Aftertreatment – BlueTec 6

Explains the BlueTec 6 system with EGR, DPF, and SCR components.

Transmission

Axles

Portal Axles

Explains portal axle configuration, advantages like ground clearance.

Drive System

Covers rear-axle drive, engageable all-wheel drive, and differential locks.

Brakes

Dual-Circuit Braking System

Explains pneumatic disc brakes, ALB, and air dryer system.

4-Channel ABS

Describes the 4-channel ABS system and its off-road mode.

Steering

Power Steering

Details hydraulically assisted recirculating-ball steering and its advantages.

Cab Exterior

Cab Concept

Explains the mid-engine concept, seating position, and cab design.

Electrical System

Electronic Networking

Explains CAN bus networking and OBD diagnostic socket.

Attachment and Mounting Areas

Locations of Attachment and Mounting Areas

Shows various points for mounting plates, brackets, and assemblies.

Engine Data

Transmission Details

Main Transmission

Specifies model and design of the 8-speed manual transmission.

Vehicle Speeds

Provides speed charts for U 4023 and U 5023 in basic and off-road ranges.

Axle Specifications

Braking System Overview

Braking System

Outlines the pneumatic dual-circuit disc brake system and safety features.

Cab Exterior Details

Cab Interior Details

Electrical System Overview

On-board Electrical System

Details voltage, starter motor, alternator, battery, and diagnosis.

Weights and Load Values

Permissible Load Values

Shows permissible gross vehicle weight and axle loads for different configurations.

Trailer Operation

Towing Capacities – U 4023

Provides towing capacities for U 4023 with different braking systems.

Towing Capacity U 5023

Lists towing capacities for U 5023 with various braking systems.

Dimensions and Drawings

Technical Drawing for U 4023

Shows dimensions, suspension details, and optional equipment for U 4023.

Technical Drawing for U 5023

Displays dimensions, suspension, and optional equipment for U 5023.

General Information and Performance

Tractive Force Diagram – U 4023 (8.8 t)

Illustrates tractive force vs. speed for an 8.8 t U 4023.

Tractive Force Diagram – U 4023 (10.3 t)

Shows tractive force vs. speed for a 10.3 t U 4023.

Tractive Force Diagram – U 5023 (14.1 t)

Displays tractive force vs. speed for a 14.1 t U 5023.

Tractive Force Diagram – U 5023 (14.5 t)

Illustrates tractive force vs. speed for a 14.5 t U 5023.

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