Komatsu FD15T-20 Specifications
The Komatsu FD15T-20 is a compact 1.5-ton (1,500 kg /
3,300 lb) diesel pneumatic-tire forklift engineered for light-to-medium
industrial applications that require maneuverability, reliable performance, low
fuel consumption, and excellent serviceability. Part of the Komatsu 20 Series,
the FD15T-20 is widely used in warehouses, workshops, industrial production
lines, agricultural handling, retail distribution centers, and small outdoor
material-handling operations.
This model is powered by the Komatsu 4D92E diesel engine, a compact and
efficient 2.7-2.8 L inline-4 industrial engine known for its smooth torque
curve, reliable cold-start characteristics, low vibration, and robust long-term
durability.
The FD15T-20 incorporates a torque-converter
powershift transmission, hydrostatic steering, an efficient hydraulic
gear pump, a rigid welded chassis, and an operator-friendly control
layout. Compact dimensions, low turning radius, and predictable lifting
performance make this forklift ideal for confined spaces while still
maintaining stable lifting characteristics.
Technical Data:
- Model: Komatsu 4D92E
- Type: inline 4-cylinder, 4-stroke diesel
- Displacement: approx. 2.688-2.746 L
- Bore/stroke: approx. 92x92 mm (3.62x3.62 in)
- Rated power: approx. 25-32 kW (34-43 hp) @ 2,300-2,500 rpm
- Peak torque: approx. 120-150 Nm (89-111 lb-ft) @ 1,600-1,800 rpm
- Fuel system: mechanical in-line injection pump
- Aspiration: naturally aspirated
- Combustion: direct or swirl chamber depending on sub-series
- Idle speed: approx. 750 ± 50 rpm
- Key traits: compact design, excellent fuel economy, long service life.
Lubrication System:
- Lubrication type: full-pressure wet-sump
- Oil pump: internal gear-type
- Oil capacity: approx. 6.0-7.0 L (6.3-7.4 qt)
- Operating pressure: 250-400 kPa (36-58 psi)
- Recommended oil: SAE 10W-30 or 15W-40 diesel (API CF/CG/CH)
- Filter: full-flow spin-on cartridge
Cooling System:
- Cooling method: liquid-cooled
- Coolant capacity: approx. 7-9 L (7.4-9.5 qt)
- Thermostat opening temperature: 82°C (180°F)
- Fully open around: 95°C (203°F)
- Radiator: fin-tube Construction
- Fan: mechanical belt-driven
- Water pump: centrifugal
- System pressure: 88-108 kPa (13-16 psi)
Transmission:
- Type: torque-converter powershift
- Gear configuration: 1-2 forward / 1-2 reverse
- Direction selection: lever-type mechanical or hydraulic
- Unladen travel speed: 16-18 km/h (10-11 mph)
- Laden travel speed: 14-16 km/h (9-10 mph)
- Fluid capacity: 6-8 L (6.3-8.4 qt)
- Recommended oil: Dexron II/III ATF
- Cooling: integrated oil-cooler
Front Drive Axle:
- Type: rigid cast-steel axle
- Differential: bevel-gear industrial type
- Lubrication capacity: 3.5-4.5 L (3.7-4.7 qt)
- Recommended lubricant: SAE 80W-90
Rear Steer Axle:
- Type: oscillating center-pivot
- Oscillation: ±8-10 degrees
- Capacity: 0.8-1.2 L
Braking System:
- Service brakes: hydraulic drum
- Parking brake: mechanical lever
- Notes: simple, reliable, and durable braking system.
- Voltage: 12 V
- Battery: 60-80 Ah
- Alternator: 30-50 A
- Starter: 1.8-2.2 kW
- Harness type: sealed connectors, abrasion-protected
Indicators:
- oil pressure
- coolant temperature
- battery charging
- glow plug
- hour meter
- parking brake indicator
Drive arrangement:
- Drive wheels: front
- Steer wheels: rear
- Drive type: 2WD pneumatic-tire forklift
Tires (standard pneumatic):
- Front: 6.50-10 or 7.00-12
- Rear: 5.00-8
- Optional: solid pneumatic, non-marking rubber
Chassis:
- Welded steel structure
- Integrated rear counterweight
- Reinforced overhead guard
- Anti-slip entry steps
- Rubber engine mounts
- Protected hydraulic and electrical routing
Steering:
- System type: fully hydrostatic power steering
- Pump capacity: 5-8 L/min (1.3-2.1 gpm)
- Cylinder: double-acting
- Steering axle: oscillating type
- Minimum turning radius: 2.0-2.2 m (79-87 in)
- Steering characteristics: light-effort steering, precise indoor
maneuverability.
- Pump type: engine-driven external gear pump
- Flow rate: 35-50 L/min (9-13 gpm)
- Maximum pressure: 15-18 MPa (2,175-2,610 psi)
- Hydraulic reservoir: 22-30 L (23-32 qt)
- Fluid type: ISO VG 32 / VG 46
- Lift cylinders: dual, double-acting
- Tilt cylinders: dual with cushioning
- Valve system: manually controlled proportional spool
Supported attachments:
- Side-shift
- Fork-positioner
- Rotator
- Drum/bale clamp
- Slip-sheet push-pull
- Light material-handling implements
| Service Refill Capacities |
- Engine oil: 6.0-7.0 L
- Cooling System: 7-9 L
- Transmission: 6-8 L
- Drive axle: 3.5-4.5 L
- Steer axle: 0.8-1.2 L
- Hydraulic tank: 22-30 L
Mast types:
- Simplex (1-stage)
- Duplex (2-stage)
- Triplex (3-stage full free-lift)
Lift height ranges:
- 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
- Fork thickness: 35-40 mm
- ITA fork class: Class II
- Rated load: 1,500 kg (3,300 lb)
- Load center: 500 mm (20 in)
Derating factors:
- Increased lift height
- Fork extensions
- Heavy attachments
- Side-shifting
- Off-center loads
- Rough or inclined 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: approx. 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: 2.00-2.10 m (79-83 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 sizes: 36-72 in
- Operating weight: 2,700-3,200 kg (5,950-7,050 lb)
- Counterweight mass: 1,200-1,500 kg (2,645-3,300 lb)
250-hour interval:
- Replace engine oil and filter
- Lubricate mast rails and steer axle
- Clean radiator and airflow passages
- Inspect air filter
500-hour interval:
- Transmission oil replacement
- Rear axle lubrication
- Hydraulic suction strainer cleaning
1,000-hour interval:
- Replace hydraulic fluid and filters
- Replace coolant
- Inspect hoses, cylinders, wiring
- Check attachment interface points
2,000-hour interval:
- Full drivetrain inspection
- Steering alignment
- Structural mast inspection
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