Mitsubishi FD135NZ Forklift Service Manual (99799-21000)

This FD135NZ is a big diesel counterbalance truck you'll see loading flatbeds, stuffing containers, or handling heavy steel or lumber in the yard. The service manual is what you pull when the truck is out of warranty and you've got to keep it alive over a weekend shutdown. Around my shop that means chasing hydraulic leaks, sorting engine faults, or getting steering and brakes right so the safety guy signs off.

What this manual helps you do

• Trace hydraulic problems, check pressures, and pinpoint leaking or sticking valves on the FD135NZ.
• Diagnose electrical issues, follow wiring diagrams, and sort no-start or warning light problems.
• Rebuild or replace engine and drivetrain components, then set adjustments to factory spec.
• Troubleshoot brake, steering, and axle issues, and verify everything is within safe limits.
• Adjust mast, carriage, and forks so lift, tilt, and side-shift run smoothly and safely.

Who this is for

This is for plant or warehouse maintenance, dealer techs, independent forklift shops, and rental fleet mechanics working on a Mitsubishi FD135NZ with serial F15DE-60001 and up. If you want operating instructions or daily checklists, you need the operator's handbook, not this service manual.

FAQ

Q: What format is it in, and can I search it or read the wiring diagrams?

A: It's a set of 16 PDF files with a real text layer, so you can search and zoom in on wiring and hydraulic schematics.

Q: Will this cover my exact truck?

A: It's written for FD135NZ trucks with serial numbers starting at F15DE-60001 and higher. If your plate shows that prefix and range, you're covered.

Q: Is this the right document if I'm planning major repairs?

A: Yes, this is the workshop-level service manual, meant for teardown, diagnostics, and adjustments, not just basic maintenance.

Bottom line: If you're responsible for keeping an FD135NZ (F15DE-60001-up) running, this is the right service manual to have on your bench.

Models covered by this manual

Mitsubishi publication 99799-21000 is the factory service manual for the FD135NZ, serial range F15DE-60001-up. The same publication covers 3 further forklift models: FD100NZ, FD120NZ, 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

Mitsubishi Software

Mitsubishi PDF Manuals