LGMG RT90 Off-Highway Dump Truck Operation and Maintenance Manual 2023 – PDF

Description

File Details

• Manual Type: Operation and Maintenance Manual
• Brand: LGMG (Lingong Heavy Machinery Co., Ltd.)
• Model: RT90 Off-Highway Dump Truck
• Language: English
• Page Count: 141
• File Format: PDF
• Edition: First Edition, April 2023
• Format: 880*1230 mm Sixteen format, 8 printed sheets

Chapters Covered

• Chapter I — Safety: Basic Precautions, Operation Precautions, Other Precautions, Notices & Signs and Their Pasting Positions
• Chapter II — Product Introduction: Outline and Component Name, Outline Dimension, Application, Work Environment Requirement, Vehicle Parameters
• Chapter III — Operation: Door Operation, Cab Interior Device, Cab Exterior Devices, Preparation Before Driving, Start-Up and Gearshift, Operation at Low Temperature Environment, Wheel Replacement and Tire Pressure
• Chapter IV — Operation and Maintenance of Main Assemblies: Engine, Air Intake System, Transmission, Axle, Steering System, Brake System, A/C, Rear View System, Suspension System
• Chapter V — Maintenance: Mileage for Routine Inspection & Maintenance Interval, Details on Mandatory Maintenance, Key Points of Maintenance, Lubrication of Chassis
• Chapter VI — Annex: Schematic Diagram of Brake, Hydraulic System Schematic Diagram, Electrical System Schematic Diagram
• Chapter VII — Instructions for Use of Assemblies Additionally Installed: Stone Exhauster, Vehicle Fresh Air System, Centralized Lubrication, VOSS

This LGMG RT90 Off-Highway Dump Truck Operation and Maintenance Manual is the complete guide for operating, servicing, and maintaining the RT90 mining dump truck. Spanning 141 pages, this PDF manual covers everything from daily pre-start checks to major assembly overhauls, giving operators and technicians the information needed to keep the truck running safely and efficiently.

Built by Lingong Heavy Machinery Co., Ltd. (LGMG), the RT90 is a heavy-duty off-highway dump truck designed for mining, quarrying, and large-scale earthmoving operations. This manual is written for the people who work with these machines every day — operators who need to understand the controls and safe operating procedures, and maintenance staff who need accurate specifications and service procedures.

Vehicle Specifications at a Glance

The manual includes full vehicle parameters for the RT90. Key figures include a maximum total mass of 136,000 kg, kerb weight of 46,000 kg, and overall dimensions of 10,500 × 4,480 × 4,300 mm. The cargo body has a struck volume of 45 m³ (56 m³ heaped). The truck reaches a maximum speed of 43 km/h with a maximum gradeability of 34%.

Power comes from a WP17TG770E304 diesel engine producing 566 kW at 1,900 r/min and 3,000 N.m of maximum torque from a 16.6 L displacement. The engine meets GB20891-2014 emission standards. The transmission is an Allison 6620RS automatic with six forward gears and two reverse gears, with ratios ranging from 4.00 (first) to 0.67 (sixth) and 5.15 in reverse.

Braking is handled by a hydraulic disc service brake and a hydraulic disc central parking brake, both operating at 13 MPa, with a hydraulic retarder and engine cylinder brake as auxiliary systems. The hydraulic system includes a steering circuit with 38° maximum turning angle and a lifting circuit with 22 MPa maximum working pressure. Tire specification is 18.00 R25 on 13.00/2.0-25 rims at 0.85 MPa pressure.

Fluid capacities are documented in full: 700 L fuel, 46 L engine oil, 135 L hydraulic oil, 80 L transmission oil, 91 L (middle axle) and 86 L (rear axle) gear oil, and 150 L antifreeze.

What This Manual Covers

The operation chapters walk through every control and procedure — door operation, cab interior and exterior devices, preparation before driving, start-up and gearshift, and low-temperature operation. There are detailed sections on wheel replacement and tire pressure, including the safe procedures for tire removal and installation that are critical for a machine of this size.

The maintenance chapters are where this manual earns its keep. Each major assembly gets its own section: engine, air intake system, transmission, axle, steering system, brake system, air conditioning, rear view system, and suspension system. The maintenance schedule is laid out by mileage and time interval, with a mandatory maintenance table that specifies exactly what needs to be replaced and when — from 100-hour initial inspection through 22,000 km service intervals.

For technicians, the manual includes hydraulic and brake system schematic diagrams, electrical system schematics, and a chassis lubrication guide with a diagram showing all lubrication points. The annex section provides additional instructions for assemblies that can be installed on the RT90, including the stone exhauster, vehicle fresh air system, centralized lubrication system, and the VOSS system.

Safety Information

The manual opens with a thorough safety chapter covering basic precautions, operation precautions, and other safety considerations. It documents the notices and signs on the machine and their locations, so operators and maintenance staff can identify safety labels and understand their meaning. This is particularly important for a mining dump truck, where improper operation or maintenance can lead to serious injury or death.

Maintenance Schedules and Specifications

The mandatory maintenance tables provide material codes, specifications, quantities, and replacement intervals for engine oil, oil filters, fuel filters, air filters, gear oil, and other consumables. Maintenance intervals are organized by operating distance: initial inspection at 1,000 km, first class at 2,000 km, routine inspection at 7,000 km, second class at 10,000 km, third class at 12,000 km, fourth class at 17,000 km, and fifth class at 22,000 km.

Torque specifications, fluid capacities, and adjustment values are provided throughout the maintenance sections, along with guidance on cleaning, inspection, and replacement procedures for individual components.

Who This Manual Is For

This LGMG RT90 Operation and Maintenance Manual is essential for anyone responsible for the safe operation or maintenance of an RT90 dump truck. Fleet managers can use the maintenance schedules to plan service intervals. Operators can learn the correct procedures for starting, driving, loading, and unloading. Maintenance technicians can reference the specifications, diagrams, and step-by-step procedures for servicing every major system on the truck.

Whether you’re performing routine maintenance, troubleshooting a fault, or carrying out a major repair, having the correct specifications and procedures on hand is critical. This manual provides that information in a clear, organized format.

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This LGMG RT90 Off-Highway Dump Truck Operation and Maintenance Manual is delivered as an instant PDF download — no shipping, no waiting. You can access it on any device, print the pages you need for the workshop, and keep the manual on hand for reference. With 141 pages covering every major system, maintenance schedule, and operating procedure for the RT90, this manual gives you the information you need to operate and maintain the truck correctly.

Don’t rely on guesswork or generic advice. Get the manual that was written specifically for the RT90 and keep your dump truck running safely and efficiently.