Description

Daewoo Mega 400-V Service Manual

Daewoo Mega 400-V Service Manual – you are working on one of these wheel loaders and need the real numbers. A third-party PDF says “tighten to spec” but gives no torque. That leaky hydraulic line costs you half a shift. This 732-page factory manual fixes that. Page 1 confirms it covers serial number 3001 and up. If you have an older machine, you need the earlier edition.

Daewoo Mega 400-V Service Manual: The 732-Page Breakdown

Page 3 shows the full table of contents. Safety section runs from wheel loader safety through to shipping precautions. Specifications chapter lists engine curves, working range, bucket capacity, tipping load. General maintenance includes welding precautions – critical before you put a torch near the frame. Standard torques chapter gives you bolt and nut specs so you don’t under-torque a wheel hub.

Safety Procedures: Before You Start the Engine

The safety section covers everything from asbestos dust hazard prevention to high-pressure hydraulic line warnings. Daewoo didn’t skip details – they tell you to use solid support blocking, to wear ear protection, and to never use ether starting aids. If you ignore this section, you are risking injury. The manual forces you to read it. That’s why it’s the first chapter.

Specifications for the Mega 400-V

Components locations, general specs, engine performance curves, working range, dimensions – it’s all there. Need the bucket capacity? It’s listed along with tipping load and material weight tables. Without this data, you cannot set the machine up correctly for the job.

Does the Manual Include Transmission Error Codes?

Yes. The table of contents lists “Transmission Error Codes (ZF)” under the Engine and Drivetrain section. That means when the ZF 4WG-260 transmission throws a code, you have the factory decode chart. Not a generic list – the exact codes from Daewoo. This alone can save you hours of electrical diag.

Standard Torques: One Chapter You Can’t Skip

Chapter S0309000 covers standard torque values. On a wheel loader, every bolt matters – from the engine mounts to the articulation joint. The manual gives you specific figures, not a range. Aftermarket manuals fudge this. Daewoo doesn’t.

General Maintenance: Welding and Hydraulic Precautions

Welding on the machine without disconnecting the ECU can fry it. The manual spells out the steps. Same for hydraulic system service – it tells you how to depressurize lines safely. This is the kind of detail that separates a professional job from a fire hazard.

This is an original Daewoo shop manual – not a reprint or a third-party copy. The source file is Daewoo_Mega_400-V_Service_Manual_en-22009002326.pdf. Aftermarket documentation often swaps values or omits pages. Daewoo’s factory print is what the dealer techs use.

For background on how the engine works, see Internal Combustion Engine. If you need to understand the transmission basics, Manual Transmission covers the fundamentals.

Does this manual work for older Mega 400-V models?

This manual covers serial number 3001 and up. Earlier models require a different edition. Check your serial before buying.

What torque specs are included in the Standard Torques section?

The Standard Torques chapter (S0309000) lists factory torque values for common fasteners used throughout the machine—bolts, nuts, and cap screws. It also covers torque for hydraulic fittings and engine components. If you have a critical fastener, that chapter is your reference. Without it, you risk under- or over-torquing, which leads to leaks or fastener failure. The manual gives you the exact numbers, not a range from a generic chart.

If you want to keep that wheel loader running without chasing leaks or redoing jobs, get the factory data. Access the Factory Manual now.

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