This manual covers the Komatsu FB Series Electric Lift Trucks, including models FB12M-1R, FB15M-1R, FB18M-1R, FB15-1R, FB18-1R, FB18H-1R, FB20H-1R, FB20GH-1R, FB25H-1R, FB28H-1R, and FB30H-1R. These electric counterbalance forklifts are designed for industrial material handling and are built with Komatsu's reputation for robust and reliable equipment. The series features advanced electronic control systems, utilizing "chopper" technology for precise management of drive and hydraulic functions, ensuring efficient performance. Key technological aspects include sophisticated electronic drive and braking control, operator interface displays, and integrated safety systems.
The purpose of this service and technical manual is to provide comprehensive information for the accurate repair and maintenance of the electronic systems within the Komatsu FB Series Electric Lift Trucks. It details coverage of critical components and systems such as the drive and pump choppers, control modules (Power Card, Field Card, Micro Card), hydraulic circuits, operator display functions, and protection devices. The manual includes in-depth troubleshooting procedures, calibration and adjustment guidelines, programming and configuration instructions, and information on electrical and hydraulic circuits. This resource is intended for qualified lift truck technicians and service personnel to enhance service quality and ensure optimal operational performance.
		        	This Komatsu Electronic Equipment for Lift Trucks Manual has been prepared as an aid to improve the quality of repairs by giving the serviceman an accurate understanding of the product and by showing him the correct way to perform repairs and make judgements. Make sure you understand the contents of this manual and use it to full effect at every opportunity.
APPLICABLE MODELS :
FB 12M-1R 
FB 15M-1R 
FB 18M-1R 
FB 15-1R 
FB18-1R 
FB 18H-20H-20GH-1R 
FB 25H-28H-30H-1R 
TABLE OF CONTENTS :
Introduction 
Technical data 
Display 
The drive chopper 
Pump chopper 
Drive control 
Braking control 
Operation during turns 
Function of steering microswitches 
Pump motor control 
Start-up and parameter programming 
Battery charge status 
Hour counter 
Battery voltage and current display
Calibration of the battery voltage indicator 
Language selection 
Display of protection device operations 
Software protection devices 
Precharge phase test 
Hardware protection devices 
Protection against polarity reversal 
Trouble shooting 
Trouble shooting programme 
Key contact 
Functions digital display 
Calibration of the Hall probe 
Hall acting sensor-Reed switches (ON/OFF) 
Control valve block 
Anticavitation valve 
Accelerator pedal 
Emergency push-button 
Line contactors
80W DC/DC converter 
Electrical box 
Chopper components 
Chopper connections 
Power card 
Field card
Micro card 
Display connections 
Command wiring connection diagram 
Hydraulic calibrations 
Hydraulic circuits 
Wiring diagrams
=======================================================
File Type : PDF
Requirements : PDF Reader
Language : English
		This Komatsu Electronic Equipment for Lift Trucks Manual has been prepared as an aid to improve the quality of repairs by giving the serviceman an accurate understanding of the product and by showing him the correct way to perform repairs and make judgements. Make sure you understand the contents of this manual and use it to full effect at every opportunity.
APPLICABLE MODELS :
FB 12M-1R 
FB 15M-1R 
FB 18M-1R 
FB 15-1R 
FB18-1R 
FB 18H-20H-20GH-1R 
FB 25H-28H-30H-1R 
TABLE OF CONTENTS :
Introduction 
Technical data 
Display 
The drive chopper 
Pump chopper 
Drive control 
Braking control 
Operation during turns 
Function of steering microswitches 
Pump motor control 
Start-up and parameter programming 
Battery charge status 
Hour counter 
Battery voltage and current display
Calibration of the battery voltage indicator 
Language selection 
Display of protection device operations 
Software protection devices 
Precharge phase test 
Hardware protection devices 
Protection against polarity reversal 
Trouble shooting 
Trouble shooting programme 
Key contact 
Functions digital display 
Calibration of the Hall probe 
Hall acting sensor-Reed switches (ON/OFF) 
Control valve block 
Anticavitation valve 
Accelerator pedal 
Emergency push-button 
Line contactors
80W DC/DC converter 
Electrical box 
Chopper components 
Chopper connections 
Power card 
Field card
Micro card 
Display connections 
Command wiring connection diagram 
Hydraulic calibrations 
Hydraulic circuits 
Wiring diagrams
=======================================================
File Type : PDF
Requirements : PDF Reader
Language : English