Komatsu FD15H-15 Specifications
The Komatsu FD15H-15 is a compact diesel-powered
pneumatic-tire forklift engineered for light-to-medium industrial workloads,
offering a nominal lifting capacity of approximately 1500 kg (3300 lb). Designed
for warehouse operations, small manufacturing plants, agricultural supply
centers, material distribution facilities, and construction-related handling
tasks, the FD15H-15 provides a combination of reliable performance,
maneuverability, fuel efficiency, and ease of maintenance. Its compact frame
allows operation in congested spaces while still delivering the rugged
durability expected from Komatsu’s forklift lineup.
This model is powered by the Isuzu C240, a proven 2.4-liter naturally aspirated
industrial diesel engine widely known for its mechanical simplicity, fuel
economy, low operating cost, and robust reliability in multi-shift applications.
The engine delivers stable torque and clean combustion while providing long
service intervals and easy service access.
The FD15H-15 integrates a heavy-duty Komatsu
powershift transmission, fully hydrostatic steering, reinforced
welded-steel chassis, and a high-efficiency hydraulic system, ensuring
consistent lift performance and predictable handling in small-to-medium
industrial environments.
The operator compartment is designed for comfort, low vibration, and
clear visibility, featuring ergonomic controls, a durable seat,
logically arranged hydraulic levers, and a protective overhead guard.
With a reinforced mast structure, wide-view design, and stable
load-handling geometry, the FD15H-15 offers excellent control for
pallet, crate, and material handling operations. Together, its
structural durability, long engine life, low fuel usage, and Komatsu
engineering make the FD15H-15 a dependable forklift for businesses
requiring reliable daily operation with minimal downtime.
Basic Technical
Data
Engine model: Isuzu C240
Engine type: 4-cylinder, 4-stroke, naturally aspirated diesel
Displacement: approx. 2.369 L (2369 cc)
Bore: approx. 86 mm
Stroke: approx. 102 mm
Compression ratio: approx. 18-20:1
Rated power: approx. 35-44 kW (47-60 hp) @ 2200-2500 rpm
Peak torque: approx. 150-170 Nm (110-125 lb-ft) @ 1600-1800 rpm
Fuel system: mechanical direct-injection
Governor: mechanical all-speed governor
Aspiration: natural
Idle speed: approx. 750-900 rpm
Maximum speed: approx. 2500 rpm
Lubrication System
Type: pressure lubrication with wet sump
Oil capacity: approx. 6.5-8.0 L (6.9-8.5 qt)
Oil pump: internal gear-driven
Oil filter: full-flow spin-on
Recommended oil: SAE 15W-40 API CF/CG or better
Oil cooler: optional depending on configuration
Cooling System
System type: liquid-cooled
Coolant capacity: approx. 7-9 L (7.4-9.5 qt)
Pump: belt-driven centrifugal pump
Thermostat: opens at approx. 82°C (180°F)
Radiator: heavy-duty industrial
System pressure: approx. 80-110 kPa (11-16 psi)
Transmission
Type: Komatsu industrial powershift
Speeds: 1 forward / 1 reverse (depending on version) or 2F / 2R on upgraded
units
Transmission fluid capacity: approx. 6-9 L (6.3-9.5 qt)
Travel speed (unladen): approx. 14-18 km/h (8.7-11 mph)
Reverse speed: approx. 12-16 km/h (7.5-10 mph)
Torque converter: single-stage
Fluid type: Komatsu ATF or Dexron III
Control: lever-operated forward/reverse selector
Clutches: oil-immersed multi-disc type
Drive Axle
Construction: cast-steel housing
Final reduction: bevel gear + hub reduction depending on model
Differential: industrial bevel-gear
Oil capacity: approx. 4-6 L (4.2-6.3 qt)
Lubricant: SAE 80W-90 gear oil
Braking System
Service brakes: hydraulic drum brakes (on compact FD series)
Parking brake: mechanical hand lever
Drum brakes provide simple maintenance and acceptable braking power for lighter
forklift classes.
System voltage: 12 V
Battery capacity: approx. 65-80 Ah
Alternator output: approx. 30-45 A
Starter motor: approx. 1.5-2.0 kW
Safety systems:
- Neutral start interlock
- Overheat indicator
- Low oil pressure indicator
Drive wheels: front
Steering wheels: rear
Drive configuration: 2WD
Chassis: welded-steel reinforced frame
Tire Options (Pneumatic)
Front: 6.50-10 pneumatic tire
Rear: 5.00-8 pneumatic tire
Optional: solid/cushion tires
Ground Clearance
Under chassis: approx. 120-150 mm (4.7-5.9 in)
Under mast: approx. 110-120 mm (4.3-4.7 in)
Frame Features
Reinforced mast bulkhead
Protective overhead guard
Cross-braced frame for rigidity
Rear-counterweight integrated design
Steering
Steering type: fully hydrostatic power steering
Steering pump flow: approx. 10-15 L/min
Steering axle: oscillating center-pivot type
Turning radius: approx. 1900-2100 mm (75-83 in)
Steering wheel turns: approx. 2.5-3.0 lock-to-lock
Hydraulic system type: open-center
Pump type: engine-driven gear pump
Max hydraulic pressure: approx. 14-18 MPa (2030-2600 psi)
Hydraulic flow rate: approx. 25-40 L/min (6.6-10.5 gpm)
Hydraulic tank capacity: approx. 20-30 L (21-32 qt)
Lift and Tilt System
Lift cylinders: double-acting
Tilt cylinders: double-acting with check valves
Control valves: mechanical multi-spool
Hydraulic lines: steel tubing + flexible reinforced hoses
| Service Refill Capacities |
Engine oil: 6.5-8.0 L
Coolant: 7-9 L
Transmission: 6-9 L
Drive axle: 4-6 L
Hydraulic tank: 20-30 L
Mast Types
2-stage V-mast
3-stage FSV free-lift mast
Lift Heights
2-stage mast: approx. 2500-3300 mm (98-130 in)
3-stage mast: approx. 3500-4500 mm (138-177 in)
Free Lift
2-stage: approx. 100-150 mm
3-stage: approx. 800-1000 mm
Fork Specifications
Standard fork length: 920 mm (36 in)
Optional lengths: 1070 / 1220 mm (42 / 48 in)
Fork width: 100 mm (4 in)
Fork thickness: approx. 35-40 mm (1.4-1.6 in)
Carriage type: ITA Class II
Rated capacity: approx. 1500 kg (3300 lb)
Load center: 500 mm (20 in)
Capacity derating occurs with:
- long forks
- high mast elevations
- heavy attachments
- extended load center
- excessive forward tilt
Lift speed (unladen): approx. 0.45-0.55 m/s (88-108
ft/min)
Lift speed (laden): approx. 0.30-0.45 m/s (60-90 ft/min)
Lowering speed: approx. 0.50-0.65 m/s
Drawbar pull: approx. 12-16 kN (2700-3600 lbf)
Gradeability (unladen): approx. 20-25%
Gradeability (laden): approx. 12-18%
Wheelbase: 1400-1500 mm (55-59 in)
Overall length to fork face: approx. 2200-2400 mm (87-95 in)
Overall width: approx. 1050-1120 mm (41-44 in)
Overhead guard height: approx. 2000-2100 mm (79-83 in)
Mast lowered height: approx. 1800-2100 mm
Mast raised height: approx. 3500-4500 mm
Ground clearance: approx. 120-150 mm
Turning radius: approx. 1900-2100 mm
Aisle width (1000x1200 pallet): approx. 3.0-3.4 m (118-134 in)
Maximum fork height: 2.5-4.5 m
Free lift range: 0.10-1.0 m
Fork lengths: 36 / 42 / 48 in
Operating weight: approx. 2600-3200 kg (5730-7050 lb)
Counterweight mass: approx. 600-800 kg (1320-1760 lb)
250-Hour Interval:
- Replace engine oil + filter
- Clean air filter
- Lubricate mast rollers and steer axle
500-Hour Interval:
- Replace hydraulic return filter
- Inspect axle seals
- Check brake adjustment
1000-Hour Interval:
- Replace transmission oil
- Replace drive axle oil
- Replace fuel filter
- Adjust valve clearances
- Inspect hydraulic cylinders
2000-Hour Interval:
- Replace hydraulic oil
- Replace coolant
- Perform mast structural inspection
- Pressure test hydraulic pump
- Service steering axle bushings
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