Komatsu FG15T-20 Specifications
The Komatsu FG15T-20 is a compact 1.5-ton (1,500 kg /
3,300 lb) LPG/petrol pneumatic-tire forklift engineered for light to moderate
industrial workloads requiring maneuverability, efficiency, durability, and ease
of service. As part of the Komatsu 20 Series, the FG15T-20 is widely favored in
warehouses, packaging plants, industrial workshops, food-processing facilities,
retail distribution centers, and mixed indoor-outdoor handling operations.
Powered by the Nissan K15 industrial engine - a smooth, efficient 1.5-liter
inline-4 spark-ignition powerplant - the FG15T-20 provides excellent throttle
response, low vibration, long engine life, low emissions, and predictable torque
delivery across the usable RPM range.
The forklift integrates a torque-converter
powershift transmission, reliable hydraulic system, hydrostatic power
steering, a welded steel chassis, and an operator compartment designed
for low fatigue and high visibility.
With its small footprint, short turning radius, and low operational
noise, the FG15T-20 is a preferred unit in facilities requiring compact
equipment with the reliability and support of Komatsu’s industrial
lineup.
General Technical
Data
- Engine model: Nissan K15 Industrial Engine
- Configuration: Inline 4-cylinder, 4-stroke, spark-ignition
- Displacement: approx. 1.499 L (1,499 cc)
- Bore/stroke: approx. 73x89 mm (2.87x3.50 in)
- Rated power: 25-30 kW (34-40 hp) @ 2,500-2,700 rpm
- Peak torque: 105-120 Nm (77-89 lb-ft) @ 1,600-1,800 rpm
- Fuel types: LPG or gasoline depending on market
- Fuel system: electronic fuel injection (EFI) or carburetor (older units)
- Aspiration: naturally aspirated
- Idle speed: 650-750 rpm
Lubrication System
- Type: full-pressure wet-sump
- Oil pump: internal gear-type
- Oil capacity: 3.0-4.0 L (3.2-4.2 qt)
- Operating pressure: 250-400 kPa (36-58 psi)
- Recommended oil: SAE 10W-30 or 15W-40 (spark-ignition spec)
- Filtration: spin-on full-flow oil filter
Cooling System
- Cooling method: liquid-cooled
- Coolant capacity: 6-8 L (6.3-8.4 qt)
- Thermostat opening: 82°C (180°F)
- Full opening: 95°C (203°F)
- Radiator: fin-tube Construction
- Water pump: belt-driven centrifugal
- Fan: mechanical engine-driven
- Cooling System pressure: 88-108 kPa (13-16 psi)
Transmission
- Type: torque-converter powershift
- Gear selection: 1-2 forward / 1-2 reverse
- Direction control: mechanical or hydraulic shuttle lever
- Travel speed (unladen): 16-18 km/h (10-11 mph)
- Travel speed (laden): 14-16 km/h (9-10 mph)
- Transmission oil capacity: 6-8 L (6.3-8.4 qt)
- Recommended fluid: Dexron II/III ATF
- Cooling: integrated oil-to-air cooler
Front Drive Axle
- Construction: rigid steel axle
- Differential: bevel-gear type
- Lubrication capacity: 3.0-4.0 L (3.2-4.2 qt)
- Lubricant: SAE 80W-90
Rear Steer Axle
- Type: oscillating center-pivot
- Oscillation: ±8-10 degrees
- Lubrication volume: 0.7-1.0 L
Brake System
- Service brakes: hydraulic drum
- Parking brake: mechanical lever-type
- Notes: predictable modulation for tight indoor spaces
- Operating voltage: 12 V
- Battery rating: 60-80 Ah
- Alternator output: 30-50 A
- Starter motor: 1.4-1.8 kW
- Electrical harness: abrasion-resistant, sealed connectors
Dashboard indicators:
- oil pressure
- coolant temperature
- charging system
- LPG/petrol fuel gauge
- hour meter
- parking brake
Drive arrangement: 2WD, front drive / rear steering
Frame: welded steel Construction
Operator entry: anti-slip steps, wide floor plate
Tires (Pneumatic)
- Front: 6.50-10 or 7.00-12
- Rear: 5.00-8
Optional: solid pneumatic, non-marking compounds
Other chassis features
- Rubber-isolated engine mounts
- Reinforced overhead guard
- Protected hydraulic and electrical routing
- Low vibration and noise levels
Steering
- Steering type: fully hydrostatic
- Pump output: 5-8 L/min (1.3-2.1 gpm)
- Steering cylinder: double-acting
- Turning radius: 2.0-2.2 m (79-87 in)
- Rear axle: oscillating for uneven areas
- Pump: engine-driven external gear pump
- Pump flow: 35-50 L/min (9-13 gpm)
- Max pressure: 15-18 MPa (2,175-2,610 psi)
- Hydraulic reservoir: 22-28 L (23-30 qt)
- Oil specification: ISO VG 32 / ISO VG 46
Cylinders:
- dual lift cylinders
- dual tilt cylinders (cushioned)
- Control: mechanical proportional spool valve
| Service Refill Capacities |
- Engine oil: 3.0-4.0 L
- Coolant: 6-8 L
- Transmission: 6-8 L
- Drive axle: 3.0-4.0 L
- Steer axle: 0.7-1.0 L
- Hydraulic reservoir: 22-28 L
Mast types:
- Simplex (1-stage)
- Duplex (2-stage)
- Triplex (3-stage full free-lift)
Lift height options:
- Simplex: 2.5-3.0 m (98-118 in)
- Duplex: 3.0-4.0 m (118-157 in)
- Triplex: 4.0-5.0 m (157-197 in)
Fork specifications:
- Standard lengths: 920 mm (36 in), 1,070 mm (42 in)
- Optional: 1,220-1,829 mm (48-72 in)
- Fork width: 100 mm
- Thickness: 35-40 mm
- ITA fork class: Class II
- Rated load: 1,500 kg (3,300 lb)
- Load center: 500 mm (20 in)
Derating occurs with:
- long forks
- tall masts
- heavy attachments
- off-center loads
- uneven surfaces
- Lift speed (unladen): 0.45-0.58 m/s
- Lift speed (laden): 0.25-0.38 m/s
- Lowering speed: 100-150 ft/min
- Gradeability (unladen): 18-25%
- Gradeability (laden): 10-18%
- Drawbar pull: 7,000-10,000 N (1,570-2,250 lbf)
- Length to fork face: 2.25-2.40 m (89-94 in)
- Width: 1.05-1.10 m (41-43 in)
- Overhead guard height: 2.00-2.05 m (79-81 in)
- Wheelbase: 1.40-1.50 m (55-59 in)
- Ground clearance: 100-120 mm (3.9-4.7 in)
- Carriage width: 900-1,000 mm (35-39 in)
- Turning radius: 2.0-2.2 m
- Aisle width (1000x1200 pallet): 3.1-3.4 m
- Maximum fork height: 2.5-5.0 m
- Free lift: 70-600 mm
- Supported fork lengths: 36-72 in
- Operating weight: 2,600-3,000 kg (5,730-6,610 lb)
- Counterweight: 1,200-1,450 kg (2,645-3,196 lb)
250-hour:
- Replace oil and filter
- Clean radiator
- Lubricate mast and steer axle
- Inspect air filter
500-hour:
- Replace Transmission fluid
- Inspect driveline and axle seals
- Clean hydraulic strainer
1,000-hour:
- Replace hydraulic oil and filters
- Replace coolant
- Full cylinder/hose inspection
2,000-hour:
- Drivetrain inspection
- Steering alignment
- Structural mast inspection
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