International LT and RH Series Operation and Maintenance Manual 2023

Description

International LT and RH Series Operation and Maintenance Manual 2023

This is the full operation and maintenance manual for the International LT Series and International RH Series trucks, published by Navistar, Inc. for the 2023 model year. It is the document that ships with the vehicle and covers everything the driver, owner or fleet technician needs to run, inspect, maintain and service these trucks correctly. Every control on the dash, every warning lamp on the electronic gauge cluster, every scheduled lubrication interval and every fluid capacity is documented inside, along with the safety warnings and cautions that govern their use.

File Details

• Manual type: Operation and Maintenance Manual
• Brand / manufacturer: International (Navistar, Inc.)
• Models covered: International LT Series and International RH Series
• Publication number: 4328701R1 (supersedes 4328388R8)
• Publication year: 2023
• Language: English
• Page count: 327 pages
• File format: PDF

What This Manual Covers

The International LT and RH Series Operation and Maintenance Manual 2023 is divided into ten numbered sections that move from identifying the vehicle through to scheduled servicing. Section 2 describes every available LT and RH configuration, including the 4×2 and 6×4 Lo-Rise Day Cab, the Hi-Rise and Sky-Rise Sleeper Cabs in 56-inch and 73-inch lengths, and the RH short sleeper and day cab variants. Vehicle identification, feature codes, engine serial number location and Line Set Ticket usage are all explained, so parts ordering and warranty communication are based on the correct codes.

Section 3 is a full pre-trip inspection guide with illustrated walk-around points for the left-side cab area, engine compartment, front of tractor, right-side under-vehicle area, rear of tractor, fifth wheel and coupling area, and the frame-rail battery box. Section 4 explains the electrical system, dash components, overhead console, electronic gauge cluster, steering wheel controls, climate control, mirror and window controls, telematics and the available collision warning and active steering systems. Section 5 covers the sleeper compartment in detail, including lighting, the sleeper control panel, the Auto Start / Stop system, ESPAR heater operation, bunk restraint systems, upper and lower bunk access, and cabinet and storage configurations.

Chapters Covered

• Section 1 – Foreword: Cautions and Warnings, Assistance Guide, Component Code Numbers, Line Set Ticket, Vehicle Storage Instructions, Diesel Exhaust Fluid Storage, Exterior Noise Emissions, Noise Emissions Warranty, Emission Control Systems, HD-OBD Foreword, Supplemental Federal Emission Control System Warranty, Reporting Safety Defects, Customer Security Guide
• Section 2 – Model Description: Available Models, Vehicle Identification (VIN, Feature Codes, Engine Serial Number, Line Set Ticket), Exterior Components, Cab Entry and Exit, Raising and Lowering the Hood, Luggage Box Access, Chassis Skirts
• Section 3 – Inspection Guide: General Information, Tractor Inspection, Preparation, Exterior Lights Check, Left-Side Cab Area, Left-Side Engine Compartment, Left-Side Front of Tractor, Front of Tractor, Right-Side Engine Compartment, Right-Side of Cab, Rear of Cab, Right-Side Under Vehicle, Left-Side Rear of Tractor, Rear of Tractor, Right-Side Rear of Tractor, Fifth Wheel and Coupling Area, Battery Box, Cab Interior Inspection
• Section 4 – Controls / Features: Electrical System, Dash Components, Overhead Console, Base Electronic Gauge Cluster Overview, Gauges, Controller Operation, Screen Layout, Main Viewer, Menu Items, Direct Drive Warning Indicators, Electronic Gauge Cluster Alarms, Light Control Module, Headlights, Daytime Running Lights, Lights On With Wipers, Parking Lights, Panel Lighting, Rocker Switches, Dome Lighting, Courtesy Lights, Steering Wheel Controls, Cruise Control, Steering Column and Switches, Center Dash Panel / Wing Panel, Auxiliary Gauges, Switches, Climate Control, Air Conditioning, Electronic Touchscreen, Vehicle Information Display, Door and Window Controls, Mirror Controls, Vent Window, Predictive Cruise Control System, Vehicle Telematics, Collision Warning Systems, Active Steering, Driver Reward
• Section 5 – Sleeper Features: Lighting, Sleeper Control Panel, Auto Start / Stop System, Heat Mode and ESPAR Heater, Air Conditioning Mode, Manual and Electronic Climate Controls, No-Idle Heating, Power Receptacle, Radio Remote Control, Remote Power Inverter Panel, Windows, Bunk Restraint System, Lower Bunk, Upper Bunk, Cabinets and Storage, Convenience Features
• Section 6 – Operation: Operation Safety, Cab Access, Airbag System, Seat Belts, Seats and RollTek Rollover Protection, Starting Procedures, Cold Weather, Engine Idling, Hot Weather Operation, Operating Instructions, Steering, Electrical, Engine, HD-OBD Overview, Self Diagnostics, Fuel, Transmission, Rear Axles, Rear Suspension, Exhaust Aftertreatment, Brakes, Antilock Brake System, Automatic Traction Control, Stability Control Systems, Towing Instructions, Tractor-Trailer Connections, Fifth Wheel Operation
• Section 7 – Maintenance Instructions: Maintenance Guidelines, Supporting Your Vehicle for Service, Chassis Lubrication, Air Conditioning Service Checks, HVAC Filters, Axles, Brakes, Air Dryer, Cab Care, Clutch, Electrical, Engine, Air Induction System, Cooling System, Fuel System, Frame, Noise Emissions, DEF Tank Filling, Diesel Particulate Filter, Drive Shafts, Suspension, Steering, Tires, Wheels, Transmission
• Section 8 – Maintenance Intervals and Specifications: Lubrication and Maintenance Intervals, Maintenance Intervals, Lubrication and Fluids Charts, Components Requiring Lubrication, Components Requiring Fluid Check and Fill, Unit Refill Capacities, Cooling System Refill Capacities, Diesel Exhaust Fluid Tank, Crankcase and Oil Filters, Hydraulic Clutch System, Power Steering Systems, Transmission, Rear Axle Unit Refill Capacities, Lubricant and Sealer Specifications, Torque Specifications, Fuse Charts, Light Information, Filter List
• Section 9 – Customer Assistance: Service Information, International Truck Warranty Program
• Section 10 – Index

Taken as a whole, this International LT and RH Series Operation and Maintenance Manual 2023 gives a technician or operator a single reference that links the vehicle’s controls to its maintenance schedule. The operation sections explain how each system is meant to behave and what the warning lamps mean, while the maintenance sections translate that behaviour into specific lubrication points, fluid types, refill capacities, inspection intervals and torque figures. The result is a document that supports both day-to-day driving decisions and long-term service planning on the same platform.

Safety Warnings, Cautions and Notices

Throughout the manual, WARNING and CAUTION callouts mark the procedures where incorrect practice risks personal injury, death or component damage. These include the three-point stance rules for cab entry and exit, the correct method for releasing radiator pressure caps, jack and floor-stand requirements for working under the vehicle, battery handling and jump-starting sequence, airbag and RollTek service restrictions, brake lining dust precautions, and the conditions that must be met before starting a parked DPF regeneration. The warnings are reproduced in context with the procedure they apply to, which is what makes this manual useful in the workshop rather than just as a reference on a shelf.

Emissions, DEF and Aftertreatment Content

The manual documents the Selective Catalytic Reduction system, Diesel Exhaust Fluid requirements, DEF tank location and filler identification, low DEF level warning stages and the corresponding engine derate conditions, DEF contamination indicators, and Diesel Particulate Filter regeneration including the parked regeneration procedure, the regeneration inhibit switch variants and the DPF ash cleaning requirement. Both International A26 and Cummins X15 engine warning tables are given, so the correct indicator sequence can be matched to whichever engine is fitted.

Who This Manual Suits

• Owner-operators who want to understand the controls, warning lamps and service requirements of their LT or RH truck
• Fleet maintenance staff who need the scheduled lubrication and maintenance interval chart, fluid capacities, torque specifications and fuse layouts
• Drivers who need the pre-trip inspection sequence and the correct response to gauge cluster alarms
• Independent technicians servicing International LT and RH Series trucks outside a franchised dealer

Put the Correct Procedures and Specifications to Work

IMAGES PREVIEW

With this International LT and RH Series Operation and Maintenance Manual 2023 on hand, you can carry out the full pre-trip inspection, interpret every warning lamp on the electronic gauge cluster, operate the sleeper Auto Start / Stop and HVAC systems correctly, follow the scheduled maintenance intervals for lubrication, coolant, transmission, rear axle and brake systems, and look up the correct fluid type, refill capacity and torque value before a job begins rather than after something goes wrong. Using the published procedures and figures matters because the alternative is guesswork on systems where an incorrect fluid, an over-torqued fastener or a missed regeneration can turn a routine service into a roadside breakdown. The document is delivered as an instant PDF download after payment, with no shipping and no waiting, and it can be stored on a phone, tablet or laptop in the cab or printed for the workshop bench.