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Komatsu FB20AGF-12 Electric Forklift Shop Manual (BBA12E1-14)

Format: PDF (Printable Document)

File Language: English

File Pages: 476

File Size: 23.51 MB (Speed Download Link)

Brand: Komatsu

Model: FB20AGF-12 Electric Forklift

Book No: BBA12E1-14

Type of Document: Shop Manual

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Komatsu FB20AGF-12 Electric Forklift Shop Manual (BBA12E1-14)

The Komatsu FB20AGF-12 Electric Forklift is a warehouse and loading-yard machine that spends its life shuttling pallets, loading trucks, and feeding production lines. People who reach for a shop manual like this are usually shop mechanics, senior techs, or a fleet manager who wants predictable downtime instead of surprises. They’re trying to keep these trucks available, diagnose faults quickly, and plan parts and labor instead of firefighting breakdowns. The Komatsu FB20AGF-12 Electric Forklift Shop Manual (BBA12E1-14) is aimed at workshop-level work, not daily operation.

What this manual helps you do

  • Trace electric drive and control faults using wiring diagrams and step‑by‑step diagnostic logic.
  • Check and adjust brake, steering, and mast systems so the truck stays within safe operating limits.
  • Follow disassembly and reassembly sequences for major components like the drive unit, hydraulic sections, and steering gear.
  • Diagnose battery, charger, and electric motor issues before you start throwing expensive parts at the problem.
  • Handle scheduled workshop services by following the recommended inspection points and adjustment procedures.

Who this is for

This is for field techs, shop mechanics, and fleet managers who plan repairs, schedule downtime, and coordinate parts for the Komatsu FB20AGF-12 Electric Forklift. It’s not the right buy if you’re just an operator or you only need basic daily checks; in that case you want the operator or operation & maintenance manual instead.

FAQ

Q: Is this a searchable PDF I can download and print?

A: Yes, it’s a digital PDF you can download, search on-screen, and print selected pages for the shop.

Q: Is this deep enough for full tear‑downs and serious troubleshooting?

A: Yes, the Komatsu FB20AGF-12 Electric Forklift Shop Manual walks through diagnostic procedures, disassembly sequences, and workshop‑level adjustments.

Q: How do I know it matches my exact truck?

A: Check your model designation against FB20AGF-12 and the book reference BBA12E1-14 on your existing literature or dealer quote; if they match, this is the right shop manual.

Bottom line: if you’re maintaining or repairing FB20AGF-12 units and you plan work and parts ahead of time, this is the manual you want; if you only need basic operating guidance, keep looking for the operator/O&M book instead.

📘 Show Index

Table of Contents:

  • 00. FOREWORD
    • SECTION INDEX
  • 10. GENERAL AND SPECIFICATIONS
    • OUTSIDE VIEW
    • SPECIFICATIONS
    • PERIODIC REPLACEMENT OF CONSUMABLE PARTS
    • SAFETY ITEMS FOR MAINTENANCE
    • STANDARD TIGHTENING TORQUE FOR BOLTS
    • STANDARD TIGHTENING TORQUE FOR PIPE JOINTS
    • HOW TO USE LOCTITE
  • 20. TESTING AND ADJUSTING
    • SERVICE DATA
    • METHOD OF RELEASING THE PRESSURE IN THE HYDRAULIC PIPING
    • LIFT INTERRUPT FUNCTION
    • HOW TO START UP THE HOUR METER
    • SEATBELT INTERLOCK FUNCTION
    • LIFTING HEIGHT TRAVEL SPEED LIMIT
    • METER PANEL
    • OPERATION OF METER PANEL
    • BATTERY
    • FUSE
    • TRANSFER CASE
    • VEHICLE MOUNTED TYPE CHARGER
    • INSTALLATION TYPE CHARGER
    • ADJUSTMENT OF WET TYPE BRAKE AND PARKING BRAKE
    • WET TYPE BRAKE
    • HYDRAULIC OIL TANK
    • MAST
    • LIFTING HEIGHT DETECTION SENSOR
    • FINGER BAR
    • NATURALLY DESCENDING AMOUNT OF HYDRAULIC OIL CYLINDER, MEASUREMENT OF NATURALLY FORWARD TILTING AMOUNT
    • AIR BLEEDING
    • LIST OF LUBRICANT AND GREASE
  • 30. REMOVAL AND INSTALLATION
    • UNIT LOCATION DIAGRAM
    • UNIT MASS
    • DRAWING OF DISASSEMBLY/ASSEMBLY
    • MAST
    • CHAIN (DOUBLE MAST)
    • CHAIN (TRIPLE MAST)
    • LIFT CYLINDER
    • DRIVE AXLE
    • STEERING AXLE
    • REAR AXLE
    • BATTERY
    • HYDRAULIC PUMP AND PUMP MOTOR
    • VEHICLE MOUNTED CHARGER
  • 40. DISASSEMBLY AND ASSEMBLY
    • DRIVE AXLE
    • TRANSFER
    • BRAKE WHEEL CYLINDER
    • BRAKE MASTER CYLINDER
    • STEERING GEAR BOX
    • ORBITROL
    • POWER STEERING CYLINDER
    • STEERING AXLE
    • REAR AXLE
    • LIFT CYLINDER
    • TILT CYLINDER
    • HYDRAULIC PUMP
    • CONTROL VALVE
    • DRIVE MOTOR
    • PUMP MOTOR
  • 50. MAINTENANCE STANDARD
    • DRIVE AXLE
    • BRAKE MASTER CYLINDER
    • STEERING AXLE
    • REAR AXLE
    • LIFT CYLINDER
    • TILT CYLINDER
    • CONTROL VALVE
    • HYDRAULIC PUMP
    • MAST, FINGER BAR, FORK
    • DRIVE MOTOR
    • PUMP MOTOR
  • 60. STRUCTURE AND FUNCTION
    • BRAKE
    • HYDRAULIC CIRCUIT DIAGRAM
    • CONTROL VALVE
  • 70. TROUBLESHOOTING
    • DIAGNOSIS TOOL
    • CONFIGURATION PARTS, SENSOR, UNIT LOCATION DRAWING
    • LOCATION DRAWING
    • HARNESS LIST
    • LOCATION OF CPU BOARD CONNECTOR
    • OVERVIEW OF ABNORMAL CODE
    • PREPARATION FOR VOLTAGE CHECK AND CURRENT CHECK
    • INPUT/OUTPUT SIGNAL OF CONTROLLER
    • ABNORMAL CODE LIST
    • DIAGNOSTIC PROCEDURE BY ABNORMAL CODE (ALA CODE)
    • DIAGNOSTIC PROCEDURE BY ABNORMAL CODE (ERR CODE)
    • DIAGNOSTIC PROCEDURE BY METER DISPLAY TROUBLE CODE
    • TROUBLE WITHOUT ABNORMAL DISPLAY
    • PROPORTIONAL SOLENOID VALVE CONTROLLER
    • ADJUSTMENT PROCEDURE OF TILT AUTOMATIC HORIZONTAL (OPTION)
    • METER PANEL
  • 80. YEARLY INSPECTION CRITERIA
    • MOTOR
    • CONTROL EQUIPMENT
    • CHARGE CONTROL UNIT
    • BATTERY
    • POWER TRANSFER EQUIPMENT
    • TRAVELING EQUIPMENT
    • STEERING EQUIPMENT
    • BRAKING EQUIPMENT
    • CARGO HANDLING EQUIPMENT
    • HYDRAULIC EQUIPMENT
    • BODY, SAFETY EQUIPMENT, ETC
    • TOTAL TEST
  • 90. CONVERSION TABLE
    • MILLIMETERS TO INCHES
    • INCHES TO MILLIMETERS
    • CUBIC METERS TO CUBIC YARDS
    • CUBIC YARDS TO CUBIC METERS
    • LITER TO U.S. GALLON
    • U.S. GALLON TO LITER
    • LITER TO U.K. GALLON
    • U.K. GALLON TO LITER
    • KILOGRAM TO POUND
    • POUND TO KILOGRAM
    • KG/CM2 TO IB/IN2
    • KGM TO FT IB
    • TEMPERATURE
  • APPENDIX
    • 3BA-97-99310 (INPUT CAP PRESS-FITTING JIG)
    • 3BA-97-99320 (INPUT OIL SEAL PRESS-FITTING JIG)
    • 3BA-97-99330 (INPUT HUB BEARING PRESS-FITTING JIG)
    • 3BA-97-99710(INPUT GEAR/BEARING PRESS-FITTING JIG)
    • 3BA-97-99720 (MULTIPLE DISC ALIGNMENT JIG)
    • 3BA-97-99730 (MULTIPLE HOLDER CLEARANCE ALIGNING JIG)
    • 3BA-97-99740 (3 WHEEL REAR AXLE PRESS-FITTING JIG)
    • 3BA-97-99760 (3 WHEEL REAR AXLE SENSOR ALIGNMENT JIG)
    • SERVICE TOOL CONFIGURATION
    • ELECTRIC WIRING DIAGRAM (BUILD IN CHARGER)
    • ELECTRIC WIRING DIAGRAM (BUILD IN CHARGER)
    • ELECTRIC WIRING DIAGRAM (BUILD IN CHARGER)
    • ELECTRIC WIRING DIAGRAM (MACHINE WITH SEATBELT INTERLOCK SYSTEM AND HIGH MAST TRAVEL SPEED LIMIT SYSTEM
    • ELECTRIC WIRING DIAGRAM (1/2) (MACHINE WITH SEATBELT INTERLOCK SYSTEM AND HIGH MAST TRAVEL SPEED LIMIT SYSTEM)
    • ELECTRIC WIRING DIAGRAM (2/2) (MACHINE WITH SEATBELT INTERLOCK SYSTEM AND HIGH MAST TRAVEL SPEED LIMIT SYSTEM)
    • ELECTRIC WIRING DIAGRAM (STATIONARY CHARGER)
    • ELECTRIC WIRING DIAGRAM (STATIONARY CHARGER)
    • ELECTRIC WIRING DIAGRAM (STATIONARY CHARGER)

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