Hyster S155FT Specifications
The Hyster S155FT represents a powerful and versatile
solution in the 15,500 lb capacity IC forklift class, offering a robust
combination of power, efficiency, and maneuverability. Powered by a choice of
Kubota 3.8L LPG engines producing 91 hp (68 kW) or Kubota 3.8L turbo diesel
engines producing 74 hp (55 kW), this model delivers reliable torque for lifting
and maneuvering loads up to 15,500 lb (7,030 kg) while maintaining fuel
efficiency suitable for demanding indoor applications. Its design prioritizes
operator comfort with an ergonomically designed compartment, low noise levels,
isolated drivetrain minimizing vibration, and a choice of five different seats.
The S155FT is distinguished by its comprehensive durability features including
strong transmission gears and shafts, state-of-the-art clutch packs, and a cast
ductile iron steer axle providing maximum durability and superior steering
control. The optional Hyster Variable Power Technology provides adjustable
performance modes, allowing customers to maximize productivity or fuel economy.
The DuraMatch transmission includes breakthrough features such as the Auto
Deceleration System, controlled rollback on ramps, and controlled power
reversals, which help move loads more efficiently with less operator fatigue and
product damage. Available with cushion tires for stable performance on improved
surfaces, the S155FT delivers travel speeds up to 12.9 mph (20.7 km/h) and a
turning radius of 101.8 in (2585 mm) for maneuverability in its class.
The Hyster S155FT is a rider-seated forklift powered by either LPG or diesel
engine options. It has a load capacity of 15,500 lb at a 24 in load centre,
equivalent to 7,030 kg at a 600 mm load centre. The distance from the drive axle
centre to the fork face (load distance) is 19.6 in or 498 mm. The truck has a
wheelbase of 72.0 in or 1,830 mm.
Its service weight (unladen) for the standard 2-stage LFL mast configuration is
21,100 lb to 21,253 lb or 9,571 kg to 9,640 kg. With a load, the total weight
increases to 36,600 lb (16,601 kg). Axle loadings with a load are 33,140 lb
(15,032 kg) on the front and 3,460 lb (1,569 kg) on the rear. When unladen,
front axle loading is 9,269 lb (4,204 kg) and rear axle loading is 11,745 lb
(5,327 kg).
The Hyster S155FT is powered by a choice of proven
industrial engines depending on fuel type and customer requirements. The Kubota
3.8L LPG engine is standard for gas models, with Kubota 3.8L turbo diesel
available for diesel configurations. The PSI 4.3L LPG engine is also offered in
some markets.
Basic Technical Data for Kubota 3.8L LPG Engine: The engine is a 4-cylinder LPG
power unit with a displacement of 230 cu.in (3,769 cc to 4,302 cc depending on
source). It produces a rated power of 91 hp at 2,400 rpm, equivalent to 68 kW at
2,400 rpm. The engine delivers a torque of 221 lb-ft at 1,000 rpm (300 Nm at
1,000 rpm). The Kubota 3.8L LPG engine is EPA/CARB emissions compliant.
Basic Technical Data for Kubota 3.8L Turbo Diesel Engine: The Kubota diesel
option features a 4-cylinder turbo diesel design with a displacement of 3.8 L
(3,769 cc). It produces a rated power of 74 hp at 2,200 rpm, equivalent to 55 kW
at 2,200 rpm. The engine delivers a torque of 227 lb-ft at 1,400 rpm (308 Nm at
1,400 rpm). This engine meets EPA Certified Tier 4 Final emission standards with
a Diesel Oxidation Catalyst (DOC) that captures and oxidizes particulate matter
(soot) and provides maintenance-free emissions, no need to add fluids or remove
filters for cleaning. The Kubota turbo diesel engine provides advanced
combustion technology that enhances fuel economy. Fuel Tank: 17.4 gal (65.8 L).
Basic Technical Data for PSI 4.3L LPG Engine: Alternative LPG engine
configuration features a 6-cylinder PSI 4.3L engine with a displacement of 262.6
cu.in (4,303 cc). It produces a rated power of 101 hp at 2,400 rpm, equivalent
to 75 kW at 2,400 rpm. The engine delivers a torque of 219.8 lb-ft to 298 Nm at
2,400 rpm.
Lubrication: The engine employs a forced lubrication system. Routine
maintenance, including oil and filter changes, is mandated at specific hourly
intervals as outlined in the periodic maintenance schedule to ensure longevity
and performance. Service manuals contain detailed specifications for engine
repair including cylinder head cleaning, valve guide cleaning, and component
inspection procedures.
Cooling: Engine temperature is regulated by a pressurized liquid cooling system
featuring air-to-air intercoolers that help increase efficiency and reduce
emissions. An optional on-demand cooling system reduces overheating,
automatically reverses fan direction every 20 minutes to clear the radiator of
debris, and extends overall truck service life by keeping major components
running in their optimum temperature ranges. Regular inspection of coolant
levels and condition, as well as monitoring the radiator, water pump, and hoses
for wear and debris, is part of standard preventative maintenance.
Transmission: The S155FT is equipped with a choice of
transmission options. Standard configuration features an electronically
controlled powershift transmission with 2 forward gears and 2 reverse gears.
Optional configuration features the DuraMatch 3 transmission with 3 forward
gears and 2 reverse gears. The transmissions feature state-of-the-art, strong
clutch packs that provide longer life, strong transmission gears and shafts, and
electronic shift control. The DuraMatch transmission includes the Auto
Deceleration System, which extends brake life by automatically slowing the truck
when the accelerator pedal is released, controlled rollback on ramps, and
controlled power reversals that virtually eliminate tire spin, thereby
increasing tire life.
Travel Speed: This forklift achieves a laden travel speed of 12.4 mph (20.0
km/h) and an unladen speed of 12.9 mph (20.7 km/h) with the standard
transmission. With the optional 3-speed forward transmission, laden travel speed
is 12.6 mph (20.2 km/h) and unladen speed is 13.0 mph (20.8 km/h).
Axles: The front axle is a drive axle with 2 driven wheels. The wheelbase is
72.0 in (1,830 mm). The robust steering axle is a cast ductile iron steer axle
providing maximum durability and superior steering control.
Brakes: Service braking is handled by a hydraulic foot brake system. The parking
brake is a hand-operated mechanical lever. The Auto Deceleration System extends
brake life by automatically slowing the truck when the accelerator pedal is
released.
The electrical system operates at a standard 12 volts
with maintenance-free batteries rated at 900 cold cranking amps. The system
powers the starter motor, lights, and electronic control units. The advanced
dash display uses a non-reflective, backlit LCD screen. The Pacesetter VSM
industrial on-board computer enables adjustment and optimization of performance.
The system includes diagnostic troubleshooting capabilities with user interface
for service technician access.
The chassis is a heavy-duty, one-piece welded steel
frame that supports all major components: the engine, drivetrain, counterweight,
and mast. The frame is designed to withstand the rigors of heavy industrial
applications. The unique grid-style overhead guard pattern improves visibility
while protecting operators and strengthening the truck's structure, with a
curved leg design providing greater shoulder clearance for easier operator entry
and exit.
The truck is fitted with cushion tires as standard, providing stable performance
on improved surfaces common in warehouse applications. The front drive tires are
size 28x12x22. The rear steer tires are size 22x12x16. The wheel configuration
features 2 driven wheels at the front and 2 steer wheels at the rear. Overall
width is 56.6 in (1,438 mm).
The S155FT features hydrostatic power steering as standard equipment. The cast
ductile iron steer axle provides maximum durability and superior steering
control. The steer column is adjustable, allowing operators to position the
steering wheel for optimal comfort and control.
The hydraulic system powers the lifting, tilting, and
auxiliary functions such as sideshift. The system features a 3-function
hydraulic control valve as standard. The auxiliary hydraulic pressure relief for
attachments is set at 2,250 psi (15.5 MPa). The hydraulic tank capacity is 19.8
gal (75 L) for drain and refill. The hydraulic system is designed for reliable
performance and serviceability, with options for high-output hydraulic controls
to customize the truck for specific applications.
The forklift is equipped with a 2-stage limited
free-lift (LFL) VISTA mast as standard, with optional 3-stage full free lift
(FFL) configurations available to suit various applications. The standard
2-stage LFL mast has a lowered height of 107 in (2,697 mm) to 108 in (2,743 mm).
It provides a free lift of 6 in (160 mm) with load backrest, enabling lifting in
low-clearance areas before the mast sections begin to extend. Optional full free
lift masts provide 50 in (1,295 mm) of free lift with load backrest. The maximum
fork height is 133 in (3,400 mm) for the standard 2-stage LFL mast.
Optional masts achieve lift heights up to 244 in (6,197 mm). The mast extends to
a height of 183 in (4,632 mm) including load backrest. Without load backrest,
extended height is 181 in (4,575 mm). The mast tilts forward by 6 degrees and
backward by 10 degrees to facilitate load handling and secure transport. The
fork carriage is a 48 in (1,219 mm) wide carriage. The standard fork dimensions
are 2.4 in thick, 5.9 in wide, and 47 in long, which is 60 mm by 150 mm by 1,219
mm. The maximum fork spread (outside dimensions) is 43.7 in (1,109 mm).
Load Capacity: 15,500 lb (7,030 kg)
Load Centre: 24 in (600 mm)
The lift speed with a load is 104 ft/min (0.53 m/s) for
the standard 2-stage LFL mast, and without a load, it increases to 106 ft/min
(0.54 m/s). Optional 3-stage FFL mast lift speeds are 100 ft/min (0.51 m/s) with
load and 102 ft/min (0.52 m/s) without load. Lowering speeds are 114 ft/min
(0.58 m/s) with load and 104 ft/min (0.53 m/s) without load for the standard
2-stage LFL mast.
Optional 3-stage mast lowering speeds are 104 ft/min (0.53 m/s) with load and 81
ft/min (0.41 m/s) without load. The truck can generate a maximum drawbar pull of
10,000 lb (4,536 kg) when laden and 5,069 lb (2,299 kg) when unladen. Its
maximum gradeability is 27 percent when laden and 23 percent when unladen. The
maximum climbing ability is 28 percent.
The overall length of the truck without forks is 115.3
in (2,930 mm). With the standard 47 in forks, overall length is 162.3 in (4,122
mm). The overall width is 56.6 in (1,438 mm). The height to the top of the
overhead guard is 91 in (2,302 mm) for the tall guard, with optional short guard
height of 88 in (2,235 mm). The step height from ground to running board is 20.9
in (531 mm).
Ground clearance, laden, is 4.1 in (104 mm) at the lowest point and 7.4 in (188
mm) at the centre of the wheelbase. The minimum aisle width required for
right-angle stacking (add length of load) is 121.4 in (3,083 mm). The equal
aisle width for 90-degree intersecting aisles is 91.2 in (2,317 mm). The outside
turning radius is 101.8 in (2,585 mm). The truck's operating weight ranges from
20,979 lb to 21,253 lb (9,516 kg to 9,640 kg) depending on configuration.
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