Market Position:
This manual targets owners and technicians of Mitsubishi FG25 forklifts, a popular class of industrial equipment requiring reliable and detailed service information for optimal uptime and performance.
Competitive Analysis:
Offers a distinct advantage over generic forklift service guides by focusing on specific Mitsubishi models and their integral 4G63/4G64 gasoline engines, providing specialized technical data crucial for accurate repairs.
Key Features:
Comprehensive coverage of critical industrial machinery, detailed engine-specific information, practical troubleshooting, and repair guidance tailored for the demanding environment of forklift operation.
Coverage Areas:
Comprehensive workshop service and repair for Mitsubishi FG25 Forklift Truck equipped with 4G63 and 4G64 gasoline engines.
Page Count:
Detailed page count not specified in product description, but implies extensive coverage.
Manual Type:
Workshop Service Repair Manual
Language:
English (assumed based on product description language).
Format:
Likely Digital (PDF) or Printed Book. Product description implies a tangible or easily accessible format for technicians.
Systems Covered:
Engine (4G63/4G64), Fuel System, Ignition System, Cooling System, Lubrication System, Exhaust System, Electrical System, Hydraulic System, Drivetrain, Braking System, Steering System, Chassis, Lift Mechanism, Mast System, Operator Compartment.
Procedures Included:
Routine Maintenance, Scheduled Servicing, Engine Overhaul, Component Diagnostics, Troubleshooting Guides, Repair Procedures, Component Removal & Installation, Hydraulic System Calibration, Electrical Circuit Diagrams, Torque Specifications, Special Tool Requirements.
Technical Depth:
In-depth technical detail suitable for professional technicians and mechanics, covering everything from basic adjustments to complete engine rebuilds and complex system diagnostics.
File Format:
If digital, typically PDF. High resolution for clear diagrams and text. Searchable text functionality is common for workshop manuals.
Print Quality:
If printed, expect durable paper stock, clear black and white diagrams, and potentially color sections for electrical schematics or specific components.
Binding Type:
If printed, typically spiral-bound for lay-flat use in a workshop environment, or a robust perfect bound for durability.
Paper Type:
If printed, typically a heavier-weight matte paper to withstand workshop conditions and reduce glare.
Primary Engine:
Mitsubishi 4G63 / 4G64 Gasoline Engine
Engine Displacement:
4G63: 2.0L (1997cc), 4G64: 2.4L (2351cc)
Engine Bore Stroke:
Variable depending on specific variant, typically around 85mm x 88mm for 4G63 and 86.5mm x 100mm for 4G64.
Compression Ratio:
Typically ranges from 8.5:1 to 10.0:1 depending on the specific engine model and forklift application.
Horsepower Output Approx:
Estimated 40-60 HP at governed RPM for forklift applications, varies by specific engine tune and forklift model.
Torque Output Approx:
Estimated 70-100 lb-ft at governed RPM, varies by specific engine tune and forklift model.
Fuel System Type:
Gasoline, likely multi-point fuel injection (MPI) or possibly carburetor depending on forklift vintage. Manual will detail specific configuration.
Fuel Type:
Unleaded Gasoline
Fuel Pump Pressure:
Specific PSI will be detailed in manual, typically around 35-45 PSI for MPI systems.
Ignition System Type:
Electronic Ignition System (EIS) with distributor or distributorless ignition system (DIS) depending on engine variant and year. Manual will provide detailed schematics and timing procedures.
Transmission Type:
Automatic Transmission (typically torque converter with hydrostatic or powershift functionality for forklifts). Specific model and type will be detailed.
Optional Transmission:
Not typically applicable for this type of industrial equipment, but manual may cover variations if present.
Transmission Fluid Type:
Specific ATF (Automatic Transmission Fluid) grade will be specified, e.g., DEXRON III/MERCON or equivalent.
Transmission Fluid Capacity:
Will be specified in the manual, typically 8-12 quarts for the transmission and torque converter.
Forklift Model Designation:
FG25 signifies a 2500 kg (approximately 5000 lbs) nominal lifting capacity.
Overall Length:
Varies by mast configuration and attachments, typical range 2.5-3.5 meters without forks.
Overall Width:
Typical range 1.1-1.3 meters.
Mast Height Lowered:
Varies by mast type (e.g., 2-stage, 3-stage), typical range 2.0-2.5 meters.
Mast Height Raised:
Varies significantly, can range from 4.0 to 6.5 meters or more.
Operating Weight:
Typically around 3500-4500 kg, including counterweight.
Lifting Capacity:
2500 kg (5000 lbs) at load center (typically 500mm).
Safety Standards Compliance:
Likely compliant with relevant industry safety standards such as ANSI/ITSDF B56.1 or ISO 3691. Manual will refer to specific safety precautions.
Active Safety Features:
Brake systems (hydraulic), audible reverse alarm, warning lights (if equipped), seatbelt.
Passive Safety Features:
Operator overhead guard (OHG), load backrest (if equipped), operator presence system (OPS).
Infotainment System:
Basic industrial controls. May include hour meter, fuel gauge, basic warning lights. Advanced infotainment systems are not typical for this class of equipment.
Driver Assistance Features:
Operator Presence System (OPS) is a common safety feature. Other advanced driver assistance systems (ADAS) are not expected.
Connectivity Features:
No typical digital connectivity features like Bluetooth or Wi-Fi. Focus is on mechanical and hydraulic systems.
Engine Oil Change Interval:
Typically every 250-500 operating hours or annually, depending on operating conditions. Manual will provide precise intervals.
Transmission Fluid Change Interval:
Typically every 1000-1500 operating hours or annually. Manual will specify.
Filter Replacement Intervals:
Air filters, oil filters, fuel filters typically replaced at engine oil change intervals or as needed based on inspection. Manual will detail.
Engine Oil Specification:
Typically SAE 10W-30 or 15W-40 API service classification CD, CE, CF, or higher. Manual will confirm exact specification and capacity.
Coolant Type:
Ethylene glycol based antifreeze/coolant with corrosion inhibitors. Manual will specify concentration and type.
Hydraulic Fluid Type:
ISO VG 32 or 46 Hydraulic Fluid, or a universal tractor transmission oil (UTTO) compatible with the system. Manual will confirm.
Common Issues Engine:
Potential issues include carbon buildup in combustion chambers, worn valve stem seals leading to oil consumption, ignition system component wear (spark plugs, coils), and cooling system leaks if maintenance is neglected. Manual will provide diagnostic procedures.
Common Issues Hydraulic:
Contamination of hydraulic fluid, worn seals in cylinders or pumps, and malfunctioning control valves can lead to reduced lifting performance or erratic operation. Manual details troubleshooting.
Common Issues Transmission:
Degradation of transmission fluid, worn clutch packs (if applicable), or hydraulic control issues can cause slippage or delayed engagement. Manual will cover diagnosis and repair.
Brand Heritage:
Mitsubishi is a well-established global manufacturer with a long history of producing reliable industrial equipment, including forklifts renowned for their durability and performance.
Model Evolution:
The FG series forklifts represent a line of robust internal combustion engine (ICE) powered lift trucks, evolving with engine technology and ergonomic improvements over the years. The use of the 4G63/4G64 engine family indicates a lineage of reliable automotive-derived powerplants adapted for industrial use.
Production Years Covered:
The manual likely covers a range of production years for FG25 models fitted with the 4G63/4G64 engines. Specific year ranges would be detailed in the manual's scope.
Brand Recognitions:
Mitsubishi forklifts are generally recognized for their reliability and robust construction in the material handling industry. Specific awards for the FG25 model are not commonly publicized as it's an industrial workhorse.
Safety Ratings:
Safety ratings are typically based on compliance with industry standards (ANSI/ITSDF, ISO) rather than consumer-style crash test ratings.
Environmental Certifications:
Engine emissions compliance will be a key certification, depending on the model year and region of sale. Manual may reference relevant emission standards.
