Freightliner Columbia CL112 CL120 Workshop Manual – STI-410 PDF

Description

Freightliner Columbia CL112 CL120 Workshop Manual – STI-410

This is the complete Freightliner Columbia CL112 CL120 Workshop Manual, distributed under publication number STI-410. It is the multi-system service publication that Daimler Trucks North America produced for the Columbia truck platform, and it is the reference technicians use for everything from routine adjustments to full component overhauls across the entire vehicle except the major drivetrain assemblies. Those larger components — engines, transmissions and rear axles — are directed to the individual manufacturer’s service manuals, exactly as the original foreword states.

File Details

• Manual type: Workshop / Service Manual
• Brand: Freightliner
• Models covered: Columbia CL112, Columbia CL120
• Publication number: STI-410
• Publisher: Daimler Trucks North America LLC
• Copyright range: 2000–2010 Daimler Trucks North America LLC
• Language: English
• Format: PDF (instant download, printable)
• Approximate length: ~1,800 pages across all sections and supplements
• Coverage style: Group-numbered sections with general information, principles of operation, removal, disassembly, assembly, installation, specifications and troubleshooting

Chapters Covered

The manual is organized by Freightliner group numbers, each of which reads as its own standalone service section. The contents page lists the following groups:

• 00 General Information
• 01 Engine (engine mounts, ether start, Jacobs engine brake Models 760A and 765, engine port diagrams, drive belts)
• 09 Air Intake (air intake ducting, air restriction indicator, Donaldson air cleaner element and assembly)
• 13 Air Compressor (Bendix Tu-Flo 550/750, Bendix DuraFlo 596, Bendix BA-921/922 and 360cc, WABCO)
• 15 Alternators and Starters (Mitsubishi starter, Delco Remy 42MT, Delco Remy SI-series alternators)
• 20 Engine Cooling / Radiator (cooling system, radiator assembly, fan clutch — Kysor K22RA and Horton DriveMaster, block heater, radiator 1000/1200/1350 sq in)
• 25 Clutch (Eaton Fuller Solo, Easy-Pedal 2000, Meritor 15.5-inch Lite Pedal, mechanical linkage)
• 26 Transmission (manual transmission removal and installation, SmartShift transmission shift control)
• 30 Throttle Control (accelerator pedal, pedal position sensor)
• 31 Frame and Frame Components (frame assembly, threaded fasteners, Huck fasteners, aerodynamic bumper, chassis side fairings, fifth wheels — Fontaine, Holland, ConMet)
• 32 Suspension (front leaf spring, rear leaf spring single and tandem axle, rough ride diagnosis, Freightliner AirLiner, AirLiner Plus, TufTrac, Chalmers 854, Front AirLiner/Hendrickson AIRTEK)
• 33 Front Axle (wheel alignment, camber, caster, toe-in, hub/brake drum/wheel bearings, oil seals, Detroit front axles)
• 35 Rear Axle (rear axle alignment, wheel hubs/brake drums/wheel bearings, oil seals, Detroit rear axles)
• 40 Wheels and Tires (disc wheel removal and installation, tire demounting and mounting, inspection, inflation, runout)
• 41 Driveline (driveline components, U-joint service, driveshaft removal/installation, component replacement, angularity and balance)
• 42 Brakes (Meritor Cam-Master Q Plus, Dana Spicer E.S., Bendix MV-3, Bendix E-6 dual brake valve, Bendix QR-1C, Bendix TP-3DC, slack adjusters — Gunite, Haldex, Meritor, Dana Spicer, brake chambers — MGM TR, Anchorlok, Midland, air dryers — Bendix DRM, AD-9, AD-IP, AD-IS, air reservoir, air lines, DV-2 drain valve, DC-4 double check valve)
• 46 Steering (Spicer steering driveline, drag link, steering wheel and column, tilt column, TRW adjustable column, Sheppard M100, TRW PS series power steering pump, air bag system, ZF steering driveline, TRW THP/PCF, ThyssenKrupp LZS5 rack and pinion, Sheppard HD94, TRW TAS models, power steering troubleshooting)
• 47 Fuel (fuel tanks and fuel lines, Arctic Fox fuel heater, Webb in-line fuel heater, fuel/water separators — ConMet, Alliance/Racor, DAVCO, Hayden fuel cooler)
• 49 Exhaust (exhaust system, heat shield, wide-band exhaust clamp, muffler, exhaust stack, EPA07 aftertreatment system)
• 54 Electrical, Instruments, and Controls (wiring repair, circuit numbers and colors, lighting system, maintenance-free batteries, magnetic switch, power distribution module, air restriction indicator, ICU Level II, speakers, HighwayMaster communications, low coolant level probe, low voltage disconnect, ICU Level I, ICU4, Eaton VORAD EVT-300 collision warning, datalinks)
• 60 Cab (windshield, cab rear air suspension)
• 72 Doors
• 82 Windshield Wipers and Washer
• 83 Heater and Air Conditioner
• 88 Hood, Grille, and Cab Fenders
• 91 Seats and Restraint Systems
• 98 Paint

Read as a whole, this Freightliner Columbia CL112 CL120 workshop manual is not a scattered collection of tips — it is a structured service library. Each group opens with general information and principles of operation, then walks through removal, disassembly, inspection, assembly and installation with torque values, clearances, service limits and adjustment procedures embedded at every step. Troubleshooting tables at the end of each system map symptoms to causes and remedies, which is what turns the manual into a diagnostic tool rather than just a repair script. Wiring and plumbing diagrams, exploded component views and cross-sectional figures are used throughout to support the written procedures.

Systems and Components This Manual Covers

Because the vehicle is treated group-by-group, the manual reaches into areas that are easy to overlook in narrower publications. Air system coverage is unusually deep — the aftertreatment device, air dryers and the various slack adjusters and brake chambers are all documented as separate subjects with their own torque and test procedures. Steering coverage spans almost every gear and pump that was fitted to the Columbia platform, including the rack and pinion steering used on some applications. Suspension coverage reaches from conventional leaf spring designs through the Freightliner AirLiner, TufTrac, Chalmers 854 and the Hendrickson AIRTEK front air suspension, each with its own ride-height and alignment procedures.

Electrical coverage is equally broad. The manual handles battery servicing and booster cable procedures, the magnetic switch and charging circuits, the power distribution modules, the Level I and Level II ICUs, the ICU4, datalinks, the VORAD collision warning system and the wiring repair methods with their specific solderless connectors. Abbreviations and unit conversion tables sit at the front of the manual so that the specification values that follow can be read without ambiguity.

Who This Manual Is For

This Freightliner Columbia CL112 CL120 service manual is aimed at the working technician, the fleet maintenance shop and the owner-operator who wants to understand a repair before authorising it. The procedures assume access to normal hand tools and shop equipment, and the torque tables give the specific figures needed to assemble components to specification. Where a component requires special tooling, the manual identifies the tool and its source. Where a job must be handed off to an engine, transmission or axle manufacturer, the manual says so plainly rather than pretending to cover work it does not.

Why Correct Specifications Matter on the Columbia

Trucks of this class carry heavy loads at sustained highway speeds, and a component that is assembled with the wrong clearance, the wrong torque or an incorrect adjustment will not stay together. A wheel bearing set to the wrong end play, a U-joint assembled out of phase, a brake slack adjuster set beyond its legal stroke, or a steering gear poppet left unset can each turn a routine job into a comeback or a roadside failure. The Freightliner Columbia CL112 CL120 repair manual exists to prevent exactly that by putting the manufacturer’s figures next to the manufacturer’s procedures. That pairing is what separates a confident repair from a guess.

Instant PDF Delivery

This listing is for the digital PDF edition of the manual. There is no physical book, no shipping and no waiting. Once payment is complete, the file is available to download immediately and can be stored on a laptop, tablet or phone, opened in the workshop, and printed page-by-page when a procedure needs to travel to the vehicle. Search the text to jump straight to the group or component you need, then work from the exact procedure the factory specified — whether you are adjusting a cab ride height, rebuilding an air compressor, tracing a datalink fault or replacing a windshield.