Mitsubishi FD45N1 Forklift Engine Service Manual (99739-59105)

Out on the dock this FD45N1 is your diesel counterbalance workhorse, dragging full pallets in and out of trailers all shift. When it dies in the aisle or will not pull under load, you grab the engine manual, not the operator book, to get it running again. This specific manual is only for the engine on the FD45N1, not the mast, hydraulics, axles, or steering. If you need to open up or properly adjust anything on the engine side, this is what you'd use.

What this manual helps you do

• Diagnose hard-start, no-start, or smoke issues on the FD45N1 diesel engine
• Trace fuel, air, and cooling problems and check related sensors and actuators
• Follow removal and refit steps for engine components without guessing bolt order
• Rebuild or replace major engine assemblies with the right sequences and specs
• Adjust engine settings and verify they're within Mitsubishi's service limits

Who this is for

This is for warehouse maintenance techs, dealer techs, independent forklift shops, and rental fleet mechanics who work on the FD45N1 engine in-house. If you want mast, brake, steering, or hydraulic info, or basic driving instructions, this is the wrong book; you'd want the chassis service manual or the operator's handbook instead.

FAQ

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

A: It's a set of 5 PDF files with a real text layer, so you can search and copy text. Engine diagrams and schematics are clear enough to zoom in and read.

Q: Will this cover my truck's serial number?

A: It's written for FD45N1 trucks in the AF19E-50011-up range. If your plate matches FD45N1 and that serial pattern, you're in the right place.

Q: Is this the right manual if I'm chasing a mast or hydraulic issue?

A: No. This is engine only. For mast, hydraulics, axles, or frame work, you need the FD45N1 chassis service manual.

Bottom line: If your problem is on the FD45N1 engine, this manual fits. If your issue is anywhere else on the truck, you should skip this one.

Models covered by this manual

Mitsubishi publication 99739-59105 is the factory service manual for the FD45N1, serial range AF19E-50011-up. The same publication covers 4 further forklift models: FD40N1, FD50CN1, FD50N1, FD55N1. Check the model and serial number on your data plate before ordering.

Table of Contents:

• 854 Diesel Engine (99739-59101)
  • Specifications
• 854 Diesel Engine (99739-59102)
  • Disassembly and Assembly
• 854 Diesel Engine (99739-59103)
  • Systems Operation Testing and Adjusting
• 854 Diesel Engine (99739-59104)
  • Troubleshooting
• 854 Diesel Engine (99739-59105)
  • Operation and Maintenance Manual

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