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freightliner M2 Plus User Manual

freightliner M2 Plus
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BUSINESS CLASS M2 PLUS MAINTENANCE MANUAL
Models: M2 Plus
STI-522-1 (02/10/2023)
Published by
Daimler Trucks North America LLC
4747 N. Channel Ave.
Portland, OR 97217
Printed in U.S.A.
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freightliner M2 Plus Specifications

General IconGeneral
Brandfreightliner
ModelM2 Plus
CategoryTrucks
LanguageEnglish

Summary

Introduction

Descriptions of Service Publications

Outlines the various service publications available for Freightliner vehicles and their purpose.

Page Description

Explains the layout and components of a typical maintenance manual page.

Maintenance Manual Contents

Lists the main groups and titles covered in the maintenance manual.

General Information

Determining Scheduled Maintenance Intervals

Explains how to determine the correct maintenance intervals based on vehicle usage and conditions.

Maintenance Schedules

Presents tables detailing maintenance intervals for different service schedules (I, II, III).

Maintenance Intervals for Schedule I

Details specific maintenance tasks and intervals for Schedule I (severe service) usage.

Maintenance Intervals for Schedules II and III

Provides maintenance intervals for Schedule II (short-haul) and Schedule III (long-haul) usage.

Overview of Maintenance Operations

Lists various maintenance operations and the intervals (IM, M1, M2, M3, M4, M5) at which they should be performed.

Initial Maintenance (IM) Operations

Lists the specific maintenance operations required for the initial maintenance interval.

M1 Maintenance Operations

Details the maintenance tasks required for the M1 maintenance interval.

M2 Maintenance Operations

Outlines the maintenance procedures for the M2 maintenance interval.

M3 Maintenance Operations

Lists the maintenance tasks required for the M3 maintenance interval.

M4 Maintenance Operations

Details the maintenance procedures for the M4 maintenance interval.

M5 Maintenance Operations

Outlines the maintenance tasks for the M5 maintenance interval.

Noise Emission Controls

Federal Law, Part 205: Transportation Equipment Noise Emission Controls

Explains federal requirements for vehicle noise emission control maintenance instructions.

Recommendations for Replacement Parts

Advises using genuine Freightliner parts for noise emission control systems.

Freightliner Noise Emissions Warranty

Refers to the owner's warranty information book for noise emission control systems.

Tampering With the Noise Control System is Prohibited

Outlines federal prohibitions and acts presumed to constitute tampering with noise control systems.

Air Intake

Air Cleaner Element Inspection and Replacement

Details the inspection and replacement procedure for the air cleaner element.

Air Compressor

Air Compressor Inspection

Explains how to inspect the air compressor intake hoses, connections, and coolant lines.

Alternators and Starters

Alternator, Battery, and Starter Checking

Provides instructions for checking the alternator, battery, and starter electrical connections and wiring.

Engine Cooling/Radiator

Fan Drive Inspecting (Noise Emission Control)

Details inspection procedures for the fan drive, including checks for loose components and clearance.

Radiator Cap Inspecting

Explains how to inspect the radiator cap for proper pressure maintenance and seal integrity.

Radiator Pressure Flushing and Coolant Changing

Provides steps for draining, flushing, and changing the engine coolant.

Clutch

Clutch Adjusting, Manually Adjusted Clutches

Describes the procedure for adjusting manually adjusted clutches, focusing on release bearing travel.

Clutch Hydraulic Fluid Changing

Details the process for flushing and replacing the clutch hydraulic fluid, including safety precautions.

Eaton Fuller Clutch Release Bearing Lubricating

Explains how to lubricate the Eaton Fuller clutch release bearing if it is not maintenance-free.

Transmission

Allison Transmission Fluid and Filter Changing

Details the procedure for changing the transmission fluid and filter for Allison transmissions.

Detroit® Automated Transmission Fluid Change and Magnetic Plug Cleaning

Outlines the process for changing fluid and cleaning the magnetic plug in Detroit automated transmissions.

Detroit® Automated Transmission Fluid Level Inspection

Explains how to inspect the fluid level in Detroit automated transmissions.

Eaton Fuller Transmission Air Filter/Regulator Element Cleaning

Describes how to clean the air filter/regulator element for Eaton Fuller transmissions.

Eaton Fuller Transmission Fluid Changing and Magnetic Plug Cleaning

Details the procedure for changing fluid and cleaning magnetic plugs in Eaton Fuller transmissions.

Transmission Fluid Level Checking

Explains how to check the transmission fluid level for Eaton Fuller manual and automated transmissions.

Frame and Frame Components

Fifth Wheel Inspecting

Provides instructions for inspecting the fifth wheel assembly, mounting brackets, and hardware.

Fifth Wheel Lubricating

Details the lubrication procedures for Fontaine, ConMet Simplex, and Holland fifth wheels.

Frame Fastener Torque Check

Explains how to check and tighten frame fasteners to ensure proper torque and prevent damage.

Trailer Electrical Connector Lubricating

Describes how to clean and lubricate trailer electrical connectors to prevent corrosion.

Suspension

Suspension Inspecting

Covers inspection of spring assemblies, brackets, crossmembers, gussets, and shock absorbers.

Suspension U-Bolt Torque Checking

Details the procedure for checking and tightening U-bolt torque on front and rear axles.

TufTrac Suspension Gen2 I-Bolt Torque Checking

Explains how to check I-bolt torque on front and rear axles for TufTrac suspension.

Front Axle

All-Axle Alignment Check

Details the procedure for checking drive axle alignment and performing a toe-in inspection.

Draw Key Nut Torque Checking

Explains how to check the torque of the nut that holds the draw key on the knuckle.

Kingpin Lubricating

Provides lubrication instructions for Detroit axles and Sealed/Easy Steer kingpins.

Steer Axle Hub Cap Vent Plug Inspection

Guides on inspecting hub cap vent plugs for signs of leakage or damage.

Tie Rod End Inspecting

Details how to inspect tie rod boots for damage and check the cross tube and clamps.

Tie Rod End Lubricating

Explains how to lubricate tie rod ends for Detroit and Meritor axles.

Wheel End Inspection and Maintenance, 6,000-Pound and 8,000-Pound Steer Axles with Oil-Lubricated Hubs

Covers periodic inspection and maintenance of wheel ends, including oil seal and hub inspection.

Rear Axle

Axle Breather Checking

Instructs on checking the axle housing breather for cleanliness and proper operation.

Axle Lubricant Changing and Magnetic Plug Cleaning

Details the procedure for changing axle lubricant and cleaning magnetic drain plugs.

Axle Lubricant Level Checking

Explains how to check and maintain the rear axle lubricant level for Detroit and Meritor axles.

Wheels and Tires

Tire Check

Outlines how to inspect tires for abnormal wear, damage, and proper inflation pressure.

Wheel Nut Checking

Details the procedure for checking wheel nut torque, including tightening sequences.

Driveline

Driveline Inspecting

Explains how to inspect the driveline for loose end yokes, universal joint wear, and shaft damage.

Driveline Lubricating

Provides instructions and approved lubricants for lubricating universal joints and slip yokes.

Brakes

Air Brake System Valve Inspection

States no scheduled maintenance for Bendix air valves within warranty; consult manual if malfunctioning.

Bendix Air Dryer Desiccant Replacement

Explains replacing the air dryer desiccant cartridge, emphasizing correct type and yearly replacement.

Governor D–2A Check

Explains the operational test and pressure setting checks for the Governor D-2A.

Dana Spicer, Haldex, and Gunite Slack Adjuster Lubrication

Details lubrication procedures for automatic slack adjusters from Dana Spicer, Haldex, and Gunite.

Meritor Slack Adjuster Lubrication

Details lubrication procedures for Meritor slack adjusters, including "in service" inspection.

Steering

Drag Link Inspection

Details inspection of the drag link for movement, ball stud nut looseness, and boot condition.

Power Steering Fluid Changing

Explains how to change the power steering fluid and filter, including safety precautions.

Power Steering Gear Lubrication

Describes how to lubricate the power steering gear sector shaft using a hand-type grease gun.

Fuel

CNG Fuel Cylinder Inspecting

Outlines inspection of CNG fuel cylinders for damage or deterioration by a qualified inspector.

CNG High-Pressure Fuel Filter Element Replacing

Explains the procedure for replacing the CNG high-pressure fuel filter element to maintain system integrity.

Fuel/Water Separator Element Replacing

Covers replacing the filter element in Alliance and DAVCO fuel/water separators.

LNG Vacuum Integrity Testing

Describes tests to check LNG tank vacuum integrity by monitoring pressure changes over time.

Exhaust

CAT CGI Bellows Replacement

Details the procedure for replacing CGI bellows in the exhaust system to prevent engine damage from air leaks.

Electrical, Instruments, and Controls

Electrical Component Inspection

Guides on inspecting electrical components for dirt, damage, loose mounting, and proper cover fit.

Trailer Cable Inspection and Cleaning

Explains how to inspect and clean trailer electrical cables and sockets for corrosion.

Cab

Aerodynamic Component Inspection

Covers inspection of aerodynamic components like fairings, side skirts, and bumpers for damage.

Mirror Folding Check

Instructs to check if folding main mirrors pivot freely on their points and to break loose debris.

Heater and Air Conditioner

Air Conditioner Inspecting

Details inspection of the refrigerant compressor clutch, drive belt, and moisture indicator.

HVAC Air Filter Replacing

Explains the procedure for replacing the HVAC air filter every six months or 60,000 miles.

Hood, Grille, and Cab Fenders

Hood Rear Support Lubrication

Provides instructions for cleaning and lubricating the hood rear support brackets and isolators.

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