Mitsubishi FD135N1 Forklift Service Manual (99799-50100)

This FD135N1 is a big diesel counterbalanced forklift, the sort of truck you use for heavy loads in shipping, steel, or lumber. The service manual is what you grab when the truck is down on a Friday night and you need it back for Monday: chasing a hydraulic issue, sorting a transmission slip, or figuring out an electrical fault. Around my shop, this is the book we work from when nobody remembers the last dealer visit and the truck is long out of warranty.

What this manual helps you do

• Trace and diagnose electrical faults using wiring diagrams and connector pinouts
• Check and adjust engine, transmission, and axle components after repairs or replacements
• Follow step-by-step procedures to rebuild or reseal hydraulic valves, cylinders, and pumps
• Troubleshoot steering, brake, and drive issues with test points, specs, and fault trees
• Verify mast, carriage, and fork setup after structural or lift-chain work

Who this is for

This is aimed at plant or warehouse maintenance, dealer techs, independent forklift shops, and rental fleet mechanics working on a Mitsubishi FD135N1 with serial AF15E-00011 and up. If you just need operating instructions or safety checks for drivers, you want the operator's handbook, not this manual.

FAQ

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

A: It's a set of 23 PDF files, split by section, with a real text layer, so you can search and copy text. Wiring diagrams and schematics are readable on a normal monitor when zoomed.

Q: Will this cover my exact truck?

A: It's written for FD135N1 trucks with serial numbers starting at AF15E-00011 and up. If your plate shows a different model prefix, this isn't the right manual.

Q: Is this the right document for general maintenance checks?

A: It works for maintenance, but it's really a workshop repair manual. For daily or weekly checks and basic controls, the operator's handbook is better.

Bottom line: If you're repairing or troubleshooting an FD135N1 in the AF15E-00011-up range, this is the correct service manual. If your truck is a different model or you only need operator info, it's not.

Models covered by this manual

Mitsubishi publication 99799-50100 is the factory service manual for the FD135N1, serial range AF15E-00011-up. The same publication covers 4 further forklift models: FD100N1, FD120N1, FD150AN1, FD160AN1. Check the model and serial number on your data plate before ordering.

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