Hyster H155XL2 Specifications
The Hyster H155XL2 is a high-capacity
internal-combustion forklift engineered for demanding industrial applications
that require exceptional lifting strength, structural durability, and dependable
long-term performance. With a nominal rated lifting capacity of 15,500 lb (7,030
kg), the H155XL2 belongs to the heavy end of the XL-series range.
This model is highly valued in steel mills,
port terminals, lumber yards, heavy material distribution centers,
precast manufacturing facilities, construction supply depots, and
industrial fabrication operations where rugged equipment and
continuous-duty capability are essential.
Designed during the era when Hyster focused heavily on mechanical
durability and industrial-grade engineering, the H155XL2 exemplifies
reliability. It uses a reinforced steel chassis, heavy-duty mast
components, long-life hydraulic systems, and industrial diesel
powerplants capable of producing strong torque at low engine speeds.
The forklift’s large pneumatic tires provide
excellent stability and traction in outdoor environments, while its long
wheelbase ensures balanced handling characteristics during full-capacity
lifting maneuvers.
The Hyster H155XL2 is typically powered by industrial
diesel engines engineered for the heavy-duty segment. The most common engine
found in this model is the Cummins 6BT 5.9-liter diesel engine, although other
configurations were available depending on production year. These engines are
known for their durability, strong low-rpm torque, ease of service, and ability
to handle prolonged high-load operation without overheating.
Diesel Engine Characteristics:
- Engine type: 4-stroke inline-six diesel
- Displacement: approx. 5.9 L
- Rated power output: approx. 110-125 hp (82-93 kW)
- Peak torque: approx. 300-350 lb-ft (407-475 Nm)
- Idle speed: approx. 700-750 rpm
- Governed speed: approx. 2,400-2,600 rpm
- Induction: naturally aspirated or turbocharged depending on market
- Fuel type: ultra-low sulfur diesel
Lubrication System:
- Oil system: full-pressure wet-sump with internal gear pump
- Oil capacity: approx. 14-16 L (14.8-16.9 qt)
- Normal oil pressure: approx. 25-35 psi (172-241 kPa) at idle
- High-rpm pressure: approx. 60-70 psi (414-483 kPa)
- Recommended oil grade: SAE 15W-40
- Filtration: full-flow, spin-on oil filter
Cooling System:
- Cooling capacity: approx. 25-28 L (26-29.5 qt)
- Thermostat opening temperature: approx. 82°C (180°F)
- Cooling system working pressure: approx. 13-15 psi (90-103 kPa)
- Water pump: belt-driven centrifugal
- Cooling fan: large-diameter mechanical fan
- Radiator: heavy-duty cross-flow industrial unit
The cooling system is engineered to support continuous heavy lifting cycles and
extended outdoor operation.
The H155XL2 uses a heavy-duty industrial powershift
transmission designed for large-capacity forklifts. A planetary reduction drive
axle handles the extreme load stress typical of 15,500-lb lift operations. The
braking system is engineered to deliver fade-free stopping performance under
heavy loads.
Transmission
- Transmission type: 2-speed hydraulic powershift
- Forward travel speed (unladen): approx. 14-16 mph (22-26 km/h)
- Reverse travel speed: approx. 12-14 mph (19-22 km/h)
- Transmission fluid capacity: approx. 18-22 L (19-23 qt)
- Recommended fluid: ATF Dexron III or industrial-grade ATF
- Features: hydraulically actuated clutch packs with smooth modulation
Drive Axle
- Axle construction: heavy cast-steel housing
- Planetary hubs: high-torque reduction
- Lubrication capacity: approx. 12-15 L (12.7-15.8 qt)
- Lubricant grade: SAE 80W-90 or 85W-140 gear oil
Braking System
- Service brakes: hydraulic wet-disc brakes (oil-immersed, low maintenance)
- Parking brake: mechanical or spring-applied, depending on variant
- Cooling: internal oil flow prevents overheating
The H155XL2 uses a robust and simplified 12-volt
electrical system suitable for harsh industrial environments.
- System voltage: 12 V
- Battery capacity: approx. 140-180 Ah
- Alternator output: approx. 70-100 A
- Starter motor: approx. 4.0-5.0 kW
- Diesel starting aids: glow plugs or intake air heaters
- Wiring: heavy-gauge industrial harness
Drive
Configuration:
- Drive wheels: front
- Steering wheels: rear
- Drive type: 2-wheel-drive
Chassis Construction:
- Fully welded, heavy-gauge steel frame
- Reinforced cross-members for mast load stresses
- Protected routing for hydraulic and fuel lines
The H155XL2 is equipped with pneumatic tires for rough or uneven outdoor
terrain. Solid pneumatic options are available for high-debris environments such
as recycling or scrap yards.
Tire sizes:
- Front: approx. 10.00-20 (pneumatic)
- Rear: approx. 8.25-15 (pneumatic)
The hydrostatic rear-wheel steering system provides maneuverability for a large
machine.
Steering:
- Steering type: hydraulic orbitrol
- Steering pump flow: approx. 14-20 L/min (3.7-5.3 gpm)
- Steering axle type: oscillating, center-pivot
- Minimum turning radius: approx. 3.3-3.6 m (130-142 in)
The hydraulic system of the H155XL2 is designed to
deliver consistent lift power for heavy loads at full height.
- Maximum hydraulic pressure: approx. 2,800-3,200 psi (193-221 bar)
- Pump type: engine-driven gear pump
- Pump flow: approx. 70-90 L/min (18-24 gpm)
- Hydraulic reservoir capacity: approx. 60-70 L (63-74 qt)
- Recommended hydraulic fluid: ISO VG 46 or ISO VG 68
- Cylinders: heavy-duty double-acting lift and tilt cylinders
| Service Refill Capacities |
- Engine oil: 14-16 L (14.8-16.9 qt)
- Cooling system: 25-28 L (26-29.5 qt)
- Transmission fluid: 18-22 L (19-23 qt)
- Drive axle oil: 12-15 L (12.7-15.8 qt)
- Hydraulic tank: 60-70 L (63-74 qt)
The H155XL2 supports heavy-duty mast configurations
capable of handling extreme loads.
Mast Types:
- Simplex (2-stage heavy-capacity)
- Duplex (2-stage with free-lift)
- Triplex (3-stage full free-lift)
Mast Lift Heights:
- Simplex: approx. 3.0-3.6 m (118-142 in)
- Duplex: approx. 3.6-4.5 m (142-178 in)
- Triplex: approx. 4.5-6.5 m (178-256 in)
Free-Lift Height:
- approx. 0.9-1.6 m (35-63 in) depending on mast type
Fork Dimensions:
- Standard fork length: 1,067-1,219 mm (42-48 in)
- Optional lengths: 1,524 mm (60 in), 1,829 mm (72 in), or custom
- Fork width: 150-180 mm (6-7 in)
- Fork thickness: approx. 50-70 mm (2.0-2.75 in)
Rated lift capacity: 15,500 lb (7,030 kg) at a 24-in
(610-mm) load center
De-rating occurs due to:
- Higher lift heights
- Extended load centers
- Attachments such as sideshifters or clamps
- Longer fork lengths
- Lift speed (unladen): approx. 0.40-0.55 m/s (80-110
ft/min)
- Lift speed (laden): approx. 0.30-0.45 m/s (60-90 ft/min)
- Lowering speed (unladen): approx. 100-130 ft/min
- Lowering speed (laden): approx. 110-160 ft/min
- Gradeability (unladen): approx. 25-30%
- Gradeability (laden): approx. 15-20%
- Drawbar pull: approx. 12,000-18,000 N (2,700-4,000 lbf)
- Overall length to fork face: approx. 3.9-4.1 m
(154-161 in)
- Overall width: approx. 1.8-2.0 m (71-79 in)
- Overhead guard height: approx. 2.4-2.6 m (95-102 in)
- Wheelbase: approx. 2.5-2.7 m (98-106 in)
- Ground clearance: approx. 150-220 mm (6-8.7 in)
- Minimum turning radius: approx. 3.3-3.6 m (130-142 in)
- Aisle width (1000x1200 pallet): approx. 5.0-5.5 m (197-217 in)
- Maximum fork height: 3.0-6.5 m depending on mast
- Free lift: 0.9-1.6 m
- Fork lengths available: 42-72 in standard, longer on request
- Operating weight: 18,000-21,000 lb (8,165-9,525 kg)
- Counterweight mass: approx. 5,000-6,500 lb (2,268-2,948 kg)
250-Hour Service:
- Replace engine oil and filter
- Clean radiator fins and air intake
- Lubricate mast channels and steer axle
- Inspect belts and hoses
500-Hour Service:
- Replace transmission filter
- Inspect hydraulic filter
- Check driveline bolts and axle seals
1,000-Hour Service:
- Replace transmission fluid
- Replace axle gear oil
- Inspect cylinder seals
2,000-Hour Service:
- Replace hydraulic fluid
- Replace coolant
- Perform full mast and carriage inspection
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