Description

Terex Demag Cc2400 Installation Manual – 880 Pages of Factory Assembly Data

If you’re putting a Terex Demag Cc2400 together, you don’t get do-overs. I’ve seen guys skip the bolt connection checks in Section 3.1.1 and end up with a superstructure that shifts under load. That’s why this Installation Manual exists – 880 pages of what the factory expects you to do, in the order they expect you to do it. No aftermarket reprints, no condensed versions, no missing pages. This is the original OEM document from Terex Demag, scanned and searchable.

Bolt Connections and Hydraulic Cylinder Protection

Section 3.1 lays out the groundwork. Bolt connections aren’t a suggestion – they list the torque sequence and the required tooling. You want to use the wrong socket or skip the cross-torque pattern? That’s how you crack a flange. The manual also covers protecting piston rods on hydraulic cylinders when the crane is partially assembled. Leave a rod exposed during track frame install and you’ll score it – then you’re buying a new cylinder. Page references are embedded in the step-by-step text, so you don’t flip around hunting for specs.

Track Frame Assembly: Left-Hand and Right-Hand

One side is not the same as the other. Section 3.7.2 runs through the left-hand track frame starting on page 31, and Section 3.7.3 does the right-hand on page 37. Each subsection includes the hydraulic line connection diagram. Connect the lines wrong and you’ll have a track that drives backward. The manual shows you the port labeling and the orientation of the spool valves. Don’t trust aftermarket diagrams – I’ve seen them swap the lines on a Demag and cause a dead short in the solenoid pack.

Does This Manual Cover Dismantling the Crane?

Yes, and it’s as detailed as the assembly side. Sections 3.10 through 3.17 walk you through taking it apart in reverse order, including supporting the crane on outriggers (Section 3.13.3) before you pull the track frames. The procedure for dismantling the counterweight (Section 3.12) specifies the lifting points and the sling angles. Skip that and you’re looking at a dropped counterweight – that’s a shop shutdown and an OSHA visit.

Main Boom Assembly: SH and SH/LH Combinations

Chapter 4 covers the main boom. You have two combinations: SH (standard head) and SH/LH (long head). Section 4.2.3 tells you how to assemble the stay bars. Section 4.2.5 details the bracing chains for boom lengths from 66 m to 84 m. The torque values for the stay bar bolts are listed in the table – don’t guess them. I’ve had a tech try to use a generic torque from a different Demag model and the bolt snapped during the first lift. This manual gives you the exact Nm numbers. If you need the values in lb‑ft, there’s a conversion table in the foreword.

Main Boom and Fly Jib Assembly

Chapter 5 adds the fly jib. The SW variant requires a specific sequence: first assemble the main boom combination SH (Section 5.2.1), then the fly jib combinations (Section 5.2.2), then fit them together (Section 5.2.3). The manual includes the runner assembly process (optional equipment) and the stay bar configurations. Trying to assemble the fly jib without the stay bars properly tensioned will cause the jib to buckle under load. I’ve seen the aftermath – not pretty.

Safety Instructions: You Will Read Them

Section 1 is not filler. It covers general safety, bolt connection integrity, and protection of hydraulic components. The manual explicitly states the required PPE and the safe working loads for lifting points. If you’re working on a Terex Demag Cc2400, the liability rests on you. Ignoring the safety warnings in this manual is a good way to get someone killed or lose your shop’s insurance. Access the factory document and keep a copy in the cab during assembly.

After you’ve got the crane assembled, you might need operating instructions for other Demag models. Check out the Terex Demag AC 140 User Manual – 36 Pages of Factory Operating Data for smaller rigs. For overhead hoists, the DEMAG SpeedHoist D-SH Operating Instructions covers the control logic. And if you’re training operators, the Terex Demag AC 650 Training Manual – 512 Pages of OEM Factory Specs is a solid reference.

Compare this to working on a Manual Transmission rebuild – you can sometimes get away with aftermarket specs because the clearances are forgiving. A crane assembly doesn’t forgive. The same goes for the drive train on heavy equipment; a Manual Transmission in a truck has tolerances that let you fudge a little. Not this crane. Every bolt, every hydraulic line, every stay bar has a factory spec. If you’re serious about doing this job right, access the factory manual.

What torque values are listed for the track frame bolts?

The bolt torque specs are in Section 3.1.1. You’ll find the exact Nm values for each fastener size.

How do I assemble the left-hand track frame correctly?

Section 3.7.2 covers the left-hand track frame assembly in detail, starting on page 31. The procedure begins with general safety checks, then moves to step-by-step instructions for connecting hydraulic lines and securing bolts. You need to follow the sequence exactly to avoid misalignment. The manual also includes diagrams showing the orientation of components. Do not attempt to skip the preliminary steps or use substitute fasteners. The hydraulic line connections are critical – if you reverse the supply and return, the track motor will run backward and damage the planetary gears.

This is the only copy you need – OEM, scanned from the original Terex Demag publication. Access the Factory Manual and keep it on your tablet or print the relevant sections for the job. 880 pages, no missing content, no guesswork.