Positioning:
The Mitsubishi FD60 and FD70 series forklifts are robust, diesel-powered industrial machines designed for heavy-duty lifting applications in warehouses, manufacturing facilities, and logistics operations. They compete in the mid-capacity diesel forklift market.
Competitors:
Competes with similar models from brands like Toyota, Komatsu, Hyster, and Caterpillar in the diesel forklift segment.
Value Proposition:
Reliability, durability, powerful diesel engines for demanding tasks, and Mitsubishi's reputation for quality industrial equipment.
Manual Value:
Provides comprehensive, factory-authorized technical information essential for maintaining the operational integrity and longevity of these forklifts.
Primary Focus:
Operation, Maintenance, and Repair
Component Coverage:
Masts, Forks, Cooling System, Electrical System, Power Train, Powershift Transmissions, Front Axle, Rear Axle, Brake System, Steering System, Hydraulic System, Fork Positioner, Side Shifter, Diesel Engine (S6S, S6S-T variants)
Mast And Forks Service Manual Pages:
368
Diesel Engine S6S Service Manual 1 Pages:
142
Diesel Engine S6S Service Manual 2 Pages:
149
S6S-T Diesel Engine Service Manual Pages:
192
Type:
Factory Workshop Service Repair Manual
Delivery Format:
ZIP (Contained Set of PDF Manuals)
Chassis Systems:
Cooling System, Electrical System, Power Train, Powershift Transmissions, Front Axle and Reduction Differential, Rear Axle, Brake System, Steering System, Hydraulic System
Engine Systems:
Diesel Engine (S6S, S6S-T): Fuel System, Lubrication System, Cooling System, Electrical System (Starter, Alternators, Glow Plugs), Air Inlet and Exhaust Systems
Attachments And Accessories:
Masts and Forks, Fork Positioner, Side Shifter
Maintenance:
Periodic checks, lubrication, component replacement, adjustments
Diagnostics And Troubleshooting:
System-specific troubleshooting guides, fault identification, diagnostic procedures
Repair And Overhaul:
Disassembly, reassembly, component repair, engine overhaul, transmission overhaul
Installation:
Removal and installation of major components and systems
Depth:
Comprehensive: From general specifications and component identification to detailed overhaul procedures, torque specifications, and diagnostic flowcharts.
Diagnostic Tools:
References special tools required for specific procedures and diagnostics.
Technical Data:
Includes service data such as tightening torques, lubrication standards, and weights of major components.
Engine Family:
Mitsubishi S6S Series Diesel Engines
Engine Variants Covered:
S6S (Naturally Aspirated) and S6S-T (Turbocharged) variants are detailed, offering insights into their respective specifications and maintenance requirements.
General Characteristics:
Designed for reliable, high-torque output suitable for forklift operation, emphasizing durability and fuel efficiency.
Type:
Direct Injection Diesel Fuel System
Components:
Detailed coverage of fuel pumps, injectors, filters, and fuel lines, including diagnostic and repair procedures.
Type:
Forced Lubrication System with Oil Pump and Filter
Type:
Water-Cooled System with Radiator, Fan, and Water Pump
Components:
Coverage of starter motor, alternator (standard and optional), glow plug system for cold starting.
Type:
Powershift Transmission
Features:
Designed for smooth gear changes under load, common in heavy-duty forklifts for operational efficiency.
Repair Procedures:
Detailed disassembly, reassembly, adjustment, and troubleshooting for the powershift transmission unit.
Fluid Type:
Refer to specific manual sections for recommended Powershift Transmission Fluid (e.g., ATF Type T-III or equivalent, verify with manual).
General Safety Considerations:
While specific safety ratings (e.g., OSHA, CE) are not detailed in this technical manual, the procedures and specifications provided are crucial for maintaining the forklift's safe operation.
Covered Systems:
Brake System, Steering System, Hydraulic System – all critical for safe operation.
Covered Systems:
Structural integrity of chassis, mast, and forks is implicitly covered through repair and maintenance procedures.
General Recommendation:
The manual details inspection points and periodic replacement parts, but specific hour-based or calendar intervals for maintenance tasks (e.g., oil changes, filter replacements) must be consulted from the operational manual or service schedule specific to the forklift's operating environment. The manual provides the technical basis for these tasks.
Engine Oil:
Consult the S6S Engine Service Manual for specific engine oil viscosity and capacity (e.g., SAE 15W-40 API CF or higher is common for these engines).
Hydraulic Fluid:
Refer to the Hydraulic System section for recommended hydraulic fluid type and capacity.
Transmission Fluid:
Consult the Powershift Transmissions section for the recommended transmission fluid type and capacity.
Common Areas:
Potential issues common to diesel forklifts of this era and type, which the manual addresses, include wear in the powershift transmission, hydraulic system leaks, cooling system inefficiencies, and wear on the mast and fork components due to heavy use. The troubleshooting sections are vital for diagnosing and resolving these.
Availability:
While specific filter part numbers (e.g., oil filter, fuel filter, hydraulic filter) are often tied to OEM specifications and may not be explicitly listed as part numbers in this general service manual, the manual guides the user on identifying and replacing these components correctly.
Importance:
The 'Service Data' sections provide crucial tightening torque specifications for critical fasteners, essential for ensuring component integrity and preventing failure.
Manufacturer:
Mitsubishi Logisnext (formerly UniCarriers), with a long history in industrial and material handling equipment manufacturing.
Series Context:
The FD60 and FD70 represent established models within Mitsubishi's line of reliable diesel-powered forklifts, built for demanding industrial environments.
General Era:
While specific production years are not stated for this manual, these models are typically found in industrial fleets from the late 20th century through the early 21st century.
