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Mitsubishi FG55N Forklift Service Manual (99739-5B110)

Format: PDF (Printable Document)

File Language: English

File Pages: 6117

File Size: 790.93 MB (Speed Download Link)

File Count: 141 PDF files

Brand: Mitsubishi

Model: FG55N

Equipment Type: Forklift

Book No: 99739-5B110

Serial No: CF33D-80001-99999

Type of Document: Service Manual

Categories: ,

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Mitsubishi FG55N Forklift Service Manual (99739-5B110)

This FG55N is a big LPG cushion-tire counterbalance truck, the kind that lives on docks and in yards hauling heavy pallets all day. The service manual is what you pull when the truck is down and you need hard data, not guesses, to get it turned around before the next shift. Around my shop that means torque specs, hydraulic pressures, wiring logic, and proper teardown sequences so nothing comes back on a comeback.

What this manual helps you do

  • Diagnose no-start, power loss, or misfire by tracing the LPG engine fuel and ignition systems step by step
  • Troubleshoot drive and powershift issues, then adjust linkages and verify pressures before releasing the truck
  • Check, rebuild, and reseal hydraulic valves and cylinders, then set relief and flow settings correctly
  • Follow wiring diagrams to chase shorts, opens, sensor faults, and controller issues in the electrical system
  • Inspect, adjust, and replace brake, steering, mast, and carriage components with the right clearances and test procedures

Who this is for

This is aimed at dealer technicians, rental fleet mechanics, plant or warehouse maintenance, and independent forklift shops working on Mitsubishi FG55N trucks. If you just need operating instructions or daily checklists, you want the operator's handbook, not this manual.

FAQ

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

A: It's a multi-file PDF set, split by section, with a real text layer, so you can search and zoom wiring diagrams clearly.

Q: Will this cover my FG55N by serial number?

A: It's written for FG55N trucks in the CF33D-80001-99999 serial range. If your plate is outside that, you may need a different book.

Q: Is this the right document if I'm planning an in-house overhaul or major repair?

A: Yes, this is the workshop-level service manual for teardown, diagnostics, and adjustments, not a parts catalog.

Bottom line: If your truck is an FG55N in that serial range and you're doing real repairs, this is the right manual. If you only need basic operation, skip it.

Models covered by this manual

Mitsubishi publication 99739-5B110 is the factory service manual for the FG55N, serial range CF33D-80001-99999. The same publication covers 9 further forklift models: FD40NB, FD45NB, FD50CNB, FD50NB, FD55NB, FG40N, FG45N, FG50CN, FG50N. Check the model and serial number on your data plate before ordering.

📘 Show Index

Table of Contents:

  • 99739-1E110
    • 00_FOREWORD
    • 01_GENERAL INFORMATION
    • 02_COOLING SYSTEM
    • 03_ELECTRICAL SYSTEM
    • 04_CONTROLLER
    • 05_POWER TRAIN
    • 06_POWERSHIFT TRANSMISSION
    • 07_FRONT AXLE AND REDUCTION DIFFERENTIAL
    • 08_REAR AXLE
    • 09_BRAKE SYSTEM
    • 10_STEERING SYSTEM
    • 11_HYDRAULIC SYSTEM
    • 12_MAST AND FORKS
    • 13_SERVICE DATA
  • Chassis and Mast (99739-1E120)
    • Foreword
    • General Information
    • Cooling System
    • Electrical System
    • Controllers
    • Power Train
    • Powershift Transmission
    • Front Axle and Reduction Differential
    • Rear Axle
    • Brake System
    • Steering System
    • Hydraulic System
    • Mast and Forks
    • Service Data
  • Chassis, Mast & Options (99739-5B100)
    • Foreword
    • General Information
    • Cooling System
    • Electrical System
    • Electrical Schematic System
    • Controllers
    • Power Train
    • Powershift Transmission
    • Front Axle and Reduction Differential
    • Rear Axle
    • Brake System
    • Steering System
    • Hydraulic System
    • Mast and Forks
    • Service Data
    • Options
    • How to Read Circuit Diagrams
    • Circuit Diagram For Diesel Models
  • Chassis & Mast (99739-5B110)
    • Foreword
    • General Information
    • Cooling System
    • Electrical System (including Schematics)
    • Controller
    • Power Train
    • Powershift Transmission
    • Front Axle and Reduction Differential
    • Rear Axle
    • Brake System
    • Steering System
    • Hydraulic System
    • Mast and Forks
    • Service Data
    • Options
    • How to read Circuit Diagrams
    • Circuit Diagram for Diesel Motors
  • Chassis and Mast (99739-5E110)
    • Foreword
    • General Information
    • Cooling System
    • Electrical System
    • Controllers
    • Power Train
    • Powershift Transmission
    • Front Axle and Reduction Differential
    • Rear Axle
    • Brake System
    • Steering System
    • Hydraulic System
    • Mast and Forks
    • Service Data
  • Engine – TB45 Gasoline (99739-11100)
    • Foreword
    • General Information
    • Tune Up
    • Mechanical
    • Lubrication
    • Cooling System
    • Control
    • Fuel System
    • Electrical System
  • Engine – GK45 (99739-21100)
    • FOREWORD
    • ENGINE GENERAL
    • ENGINE TUNE-UP
    • ENGINE MECHANICAL
    • ENGINE LUBRICATION
    • ENGINE COOLING SYSTEM
    • ENGINE CONTROL
    • ENGINE FUEL SYSTEM
    • ENGINE ELECTRICAL SYSTEM
  • Chassis and Mast (99739-57110)
    • Foreword
    • General Information
    • Electrical System
    • Powershift Transmission
    • Brake System
    • Hydraulic System
    • Mast and Forks
    • Service Data
  • Châssis et mât (99739-57200)
    • PREFACE
    • INFORMATIONS GENERALES
    • CIRCUIT DE REFROIDISSEMENT
    • CIRCUIT ELECTRIQUE
    • Plans des Circuits
    • MOTOPROPULSEUR
    • GROUPE MOTOPROPULSEUR
    • TRANSMISSION AUTOMATIQUE
    • ESSIEU AVANT ET DIFFERENTIEL DE DEMULTIPLICATION
    • ESSIEU ARRIERE
    • SYSTEME DE FREINAGE
    • CIRCUIT DE DIRECTION
    • CIRCUIT HYDRAULIQUE
    • MAT ET FOURCHE
    • DONNEES TECHNIQUES
  • Fahrgestell, Hubgerüst (99739-57300)
    • Vorwort
    • Allgemeine Informationen
    • Kühlsystem
    • Elektrisches System
    • Elektrische Schaltpläne
    • Steuerungen
    • Antriebsstrang
    • Lastschaltgetriebe
    • Vorderachse und Untersetzungsdifferentail
    • Hinterachse
    • Bremssystem
    • Lenksystem
    • Hydrauliksystem
    • Hubgerüst und Gabeln
    • Servicedaten

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