Mitsubishi FD120NZ Forklift Service Manual (99799-21000)

This FD120NZ is a big diesel counterbalanced yard truck, the kind you see on lumber or steel yards doing heavy lifts all day. People grab this service manual when the truck is out of warranty and they're tired of guessing on repairs or paying dealer rates. Around my shop, this is what I'd pull when we're into engine, transmission, steering, or hydraulic problems and need the right procedure, specs, and wiring info.

What this manual helps you do

• Diagnose hard-start, smoke, or power loss issues on the industrial diesel engine and fuel system
• Trace, check, and repair electrical and charging problems using proper wiring diagrams
• Follow teardown and reassembly steps on the power train, differential, and wet brakes
• Adjust steering, mast, and hydraulic controls to get straight tracking and smooth lift/tilt
• Troubleshoot hydraulic pressure, leaks, and slow or drifting functions, then set things back to spec

Who this is for

This is aimed at warehouse or plant maintenance techs, independent shops, dealer techs, and rental fleet mechanics working on Mitsubishi FD120NZ trucks in the F15DE-60001-up serial range. If you just need operating instructions or safety info, you want the operator's handbook, not this.

FAQ

Q: What format is it in and can I read the wiring diagrams clearly?

A: You get 16 PDF files, split by section, with a real text layer, so they're searchable and you can copy text. Wiring diagrams are in PDF and readable when zoomed.

Q: How do I know it fits my truck?

A: It's written for the Mitsubishi FD120NZ with serial numbers F15DE-60001 and up. If your plate shows FD120NZ and that serial block, you're in the right place.

Q: Is this the right document for basic maintenance only?

A: It covers full workshop-level repair. For simple daily checks and controls, it's overkill and you'd be better with the operator's handbook.

Bottom line: If you're wrenching on an FD120NZ in that serial range and need real repair info, this is the right manual. If your model or serial doesn't match, don't buy it.

Models covered by this manual

Mitsubishi publication 99799-21000 is the factory service manual for the FD120NZ, serial range F15DE-60001-up. The same publication covers 3 further forklift models: FD100NZ, FD135NZ, FD150ANZ. Check the model and serial number on your data plate before ordering.

Table of Contents:

• 00_FOREWORD
• 01_GENERAL INFORMATION
• 02_COOLING SYSTEM
• 03_ELECTRICAL SYSTEM
• 04_CONTROLLERS
• 05_TILTABLE SYSTEM
• 06_POWER TRAIN
• 07_3-SPEED POWERSHIFT TRANSMISSION
• 08_FRONT AXLE AND REDUCTION DIFFERENTIAL
• 09_REAR AXLE
• 10_BRAKE SYSTEM
• 11_STEERING SYSTEM
• 12_HYDRAULIC SYSTEM
• 13_MASTS AND FORKS
• 14_FORK POSITIONER
• 15_SERVICE DATA

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