Target Audience:
Maintenance and repair professionals, forklift fleet managers, and owners of Mitsubishi FG series forklift trucks requiring detailed technical guidance.
Value Proposition:
Provides essential, manufacturer-level data for efficient troubleshooting, maintenance, and repair, aiming to reduce downtime and operational costs.
Content Emphasis:
Focuses heavily on the 4G15 gasoline engine and the specific mechanical and hydraulic systems of the FG10, FG15, and FG18 models.
Diagrams And Illustrations:
Includes detailed diagrams, schematics, and illustrations to aid in understanding complex procedures and component identification.
Specific Models Covered:
Mitsubishi FG10, FG15, FG18 Forklift Trucks equipped with the 4G15 gasoline engine.
Estimated Page Count:
Varies by specific publication, typically 300-600 pages for comprehensive workshop manuals.
Type:
Workshop Service Repair Manual
Format:
Downloadable Digital Format (e.g., PDF)
Engine Systems:
Engine mechanical, fuel system (carburetor/injection, pumps, filters), ignition system, cooling system, lubrication system, exhaust system, emission control systems.
Powertrain Systems:
Transmission (manual/automatic, specific types used in FG series), drive axle, differential, drive shafts, and associated components.
Chassis Systems:
Braking system (hydraulic, parking brake), steering system (hydraulic power steering, linkage), suspension system (front and rear), hydraulic system (lift, tilt, steering actuation).
Electrical Systems:
Wiring diagrams, starter motor, alternator, battery, lighting system, instrumentation, control modules, sensors.
Operator Interface:
Operator controls, dashboard layout, seating adjustments, safety features.
Maintenance:
Routine maintenance schedules, fluid checks and changes, filter replacements, lubrication points, inspection procedures.
Repair And Rebuild:
Detailed disassembly, inspection, repair, and reassembly procedures for all major components and systems.
Diagnostics And Troubleshooting:
Step-by-step diagnostic procedures for identifying common and uncommon faults, including symptom-based troubleshooting guides.
Component Replacement:
Instructions for replacing specific parts such as gaskets, seals, bearings, hoses, belts, and more.
Adjustments And Calibrations:
Procedures for adjusting engine idle speed, brake systems, hydraulic pressures, and other critical settings.
Depth:
Comprehensive workshop level, suitable for professional technicians and experienced mechanics. Includes detailed specifications, torque values, and diagnostic flowcharts.
Engine Configuration:
Inline 4-cylinder, SOHC (Single Overhead Camshaft)
Displacement:
1.5 Liters (1468 cc)
Bore X Stroke:
80.6 mm x 71.0 mm (approximate, may vary slightly by application)
Compression Ratio:
Typically 8.5:1 to 9.5:1 (depending on specific engine variant and application)
Horsepower:
Approximately 60-75 HP (net, application dependent)
Torque:
Approximately 110-130 Nm (net, application dependent)
Fuel Delivery:
Carbureted (common for industrial applications) or potentially early fuel injection systems.
Fuel Type:
Unleaded Gasoline
Cooling Method:
Water-cooled, pressurized system
Oil Type:
API SG or higher, SAE 10W-30 or 10W-40 recommended (refer to manual for precise specification).
Oil Capacity:
Approximately 4.0 - 4.5 liters (including filter, refer to manual for exact capacity).
Type:
Likely a torque converter automatic transmission designed for forklift applications, providing smooth power delivery and load handling.
Optional Transmission:
Manual transmission may have been an option on some configurations, though less common for forklifts.
Fluid Type:
Automatic Transmission Fluid (ATF) such as Dexron III or equivalent (refer to manual for precise specification).
Fluid Capacity:
Refer to specific forklift model's manual for exact transmission fluid capacity.
Lift Height:
Varies by mast configuration (e.g., 3000mm, 3500mm, 4000mm, 4500mm, 5000mm, 6000mm or higher).
Fork Length:
Standard lengths like 1070mm (42 inches) or 1220mm (48 inches) are common.
Operating Weight:
Typically ranges from 2000 kg to 3000 kg depending on model and configuration.
Load Capacity:
FG10: ~1000 kg (2200 lbs); FG15: ~1500 kg (3300 lbs); FG18: ~1800 kg (4000 lbs). Specific to load center.
Industrial Safety Standards:
Complies with relevant ISO, ANSI/UL safety standards for industrial equipment.
Operator Presence System:
Likely features an operator presence system to prevent hydraulic functions when the operator is not seated.
Parking Brake:
Mechanical parking brake, often hand-operated.
Overhead Guard:
Standard integral overhead guard for operator protection.
Seatbelt:
Operator seatbelt for safety during operation.
Infotainment System:
Basic industrial instrumentation, typically includes hour meter, fuel gauge, oil pressure light, and temperature warning light. No complex infotainment systems.
Driver Assistance Features:
Primarily mechanical controls and basic safety interlocks. No electronic driver assistance features typical of modern vehicles.
Connectivity Options:
None.
Engine Oil Change:
Typically every 250-500 operating hours or annually, whichever comes first (refer to manual for precise intervals).
Air Filter Replacement:
Inspect monthly, replace as needed or every 500 operating hours.
Fuel Filter Replacement:
Replace every 1000 operating hours or as recommended.
Transmission Fluid Change:
Typically every 1000-2000 operating hours (refer to manual for exact interval and procedure).
Engine Coolant:
Ethylene glycol-based antifreeze with corrosion inhibitors, typically a 50/50 mix with distilled water.
Hydraulic Fluid:
ISO VG 32 or 46 hydraulic oil, depending on ambient operating temperature (refer to manual).
Common Engine Wear:
Potential for piston ring wear, valve stem seal degradation leading to oil consumption, and carburetor issues (if applicable).
Common Hydraulic Wear:
Leaking hydraulic cylinders, worn pump seals, or blockages in the hydraulic lines are common in older units.
Cooling System Issues:
Radiator clogs, thermostat failure, or worn water pump can lead to overheating.
Mitsubishi Heavy Industries:
Mitsubishi Heavy Industries has a long history of manufacturing industrial and heavy equipment, including forklifts.
Fg Series Development:
The FG series represents Mitsubishi's line of internal combustion engine forklifts, designed for durability and performance in various industrial environments.
Manufacturing Era:
The 4G15 engine and these specific FG models were commonly produced from the late 1980s through the 1990s and early 2000s, depending on regional markets and specific updates.
