Clark C25C Specifications
The Clark C25C represents a well-engineered solution in
the 2.5-tonne capacity LPG forklift class, offering a balanced combination of
power, efficiency, and maneuverability. Powered by a 4-cylinder LPG engine
producing approximately 50 kW (67 hp), this model delivers reliable torque for
lifting and maneuvering loads up to 2500 kg while maintaining fuel efficiency
suitable for demanding applications. Its compact design, combined with a turning
radius of 2035 mm (80.1 in), allows for excellent maneuverability in congested
warehouse aisles and tight spaces.
The C25C is equipped with cushion tires, providing stable performance on
improved surfaces common in warehouse environments. Operators benefit from
ergonomic features including power steering, an adjustable full-suspension seat,
and intuitive hydraulic controls that reduce fatigue during extended shifts.
Safety features include an operator presence system, seat belt, and backup
alarm. The clear-view uprights provide excellent visibility, while the robust
fork carriage ensures durability and precise load handling. The C25C is known
for its durable construction and straightforward maintenance, making it a
popular choice in the 5000 lb capacity class.
The Clark C25C is a rider-seated forklift powered by an LPG engine. It has a
load capacity of 2500 kg at a 500 mm load centre, equivalent to 5000 lb at a 24
in load centre. The distance from the drive axle centre to the fork face is 431
mm or 17.0 in. The truck has a wheelbase of 1400 mm or 55.1 in. Its service
weight is 4062 kg or 8950 lb. Axle loadings when laden show front axle load of
5766 kg (12,710 lb) and rear axle load of 796 kg (1755 lb). When unladen, front
axle load is 1612 kg (3554 lb) and rear axle load is 2450 kg (5401 lb).
The Clark C25C is powered by a 4-cylinder GM 3.0L LPG
engine, with engine manufacturer varying by production year.
Basic Technical Data: The engine is an inline 4-cylinder, 4-stroke industrial
LPG engine with a displacement of 2966 cc (3.0 L) or 181 cu in. It features a
cast iron block and cylinder head with pushrod overhead valve (OHV) design. The
bore x stroke measures 4.00 inches x 3.60 inches (102 mm x 91 mm) with a
compression ratio of 9.2:1. The fuel system utilizes LPG/propane with
ECU-controlled IMPCO mixer systems. Rated output is 50 kW at 2650 rpm,
equivalent to 67 hp at 2650 rpm. The engine features ECU-controlled ignition
timing for increased torque. The LPG fuel tank capacity is 15 US gallons (56.8
l).
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.
Cooling: Engine temperature is regulated by a pressurized liquid cooling system.
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 C25C is equipped with a powershift
automatic transmission type W with one forward and one reverse gear. This
transmission allows for direction changes with a simple flip of a lever, without
the need for clutching, enhancing operator efficiency and reducing fatigue. The
transmission is a powershift with torque converter for smooth operation.
Travel Speed: This forklift achieves a laden travel speed of 16.8 km/h or 10.4
mph, and an unladen speed of 16.8 km/h or 10.4 mph.
Axles: The front axle is a drive axle with 2 driven wheels. The wheelbase is
1400 mm or 55.1 in. The robust steering axle is designed for durability and
precise handling.
Brakes: Service braking is handled by drum and shoe brakes, providing reliable
and progressive deceleration essential for safety when handling loads. The
service brake type is hydraulic drum and shoe. The parking brake is manual
hand-operated.
The electrical system operates at a standard 12 volts,
powering the starter motor, lights, and electronic control units. The system
includes a complete set of lights and safety systems as standard equipment,
including backup alarms and warning lights. The neutral start safety feature
prevents the engine from starting if the gearshift is not in neutral. An
operator presence system disengages hydraulic and transmission functions when
the operator leaves the seat.
The chassis is a heavy-duty, one-piece, fully welded
steel frame constructed from high-strength, welded and formed steel plate that
protects the machine from impact damage and extends its service life. The
integrated hydraulic sump provides cooling for the hydraulic system.
Wheels and Tires: The truck is fitted with cushion tires as standard, providing
stable performance on improved surfaces common in warehouse applications. The
front tires are size 21x7-15. The rear tires are size 16x5-10.5. The wheel
configuration features 2 driven wheels at the front and 2 steer wheels at the
rear. Front tread width is 882 mm or 34.7 in. Rear tread width is 895 mm or 35.2
in. Overall width is 1080 mm or 42.5 in.
Steering: The C25C features power steering as standard equipment, significantly
reducing the effort required to turn the wheel, especially when the truck is
stationary or moving slowly under load. The steering column is adjustable to
suit the operator for comfortable operation and easy entry and exit.
The hydraulic system powers the lifting, tilting, and
auxiliary functions such as sideshift. The system is designed to provide maximum
performance while ensuring long service life for all hydraulic components. A
high-capacity pump provides adequate oil supply for the upright and auxiliary
functions.
The operating pressure for attachments is maximum 140 bar (2030 psi) and is
adjustable. The rated flow for attachments is maximum 35 l/min (9.2 gpm).
Hydraulic tank capacity is 11 gallons (41.6 l). The hydraulic system features
ergonomic hydraulic levers for operator comfort.
The forklift is equipped with clear-view uprights
available in Standard, Duplex, Triplex, and Quad configurations, with excellent
visibility thanks to extra-wide masts and optimized mast design. The standard
mast configuration has a lowered height of 2115 mm or 83.3 in. It provides a
free lift of 109 mm or 4.3 in, enabling lifting in low-clearance areas before
the mast sections begin to extend. The maximum lift height ranges from 3300 mm
to 4800 mm (130 in to 189 in) depending on mast configuration, with triplex
masts achieving 189 in (4800 mm) and quad masts reaching 258 in (6553 mm).
The mast extends to a height of 4520 mm or 178 in including load backrest
depending on configuration. The mast tilts forward by 6 degrees and backward by
5 degrees to facilitate load handling and secure transport. The fork carriage is
DIN 15173 Class IIA, with carriage width of 940 mm (37 in). The standard fork
dimensions are 45 mm thick, 100 mm wide, and 1070 mm long, which is 1.8 in by
3.9 in by 42 in. Fork length of 42 in is standard, with fork width of 4 inches
(102 mm). Adjustable fork width is standard. Sideshifter is available as
optional equipment.
Load Capacity - 5,000 lb (2,500 kg)
Load Centre - 24 in (500 mm)
The lift speed with a load is 0.54 m/s or 106 ft/min,
and without a load, it increases to 0.58 m/s or 114 ft/min. Lowering speeds are
0.45 m/s or 88 ft/min both laden and unladen. The truck can generate a maximum
drawbar pull of 2535 kg (24,860 N or 5590 lb) when laden, and 782 kg (7670 N or
1724 lb) when unladen. Its maximum climbing ability is 40.9 percent when laden.
The overall length of the truck, including the standard
1070 mm or 42 in forks, is 3387 mm or 133.3 in when measured to the fork face.
The length to the face of the forks is 2317 mm or 91.2 in. The overall width is
1080 mm or 42.5 in. The height to the top of the overhead guard is 2105 mm or
82.9 in. The seat height is 1165 mm or 45.9 in.
Ground clearance, laden, is 85 mm or 3.3 in
below the mast, and 110 mm or 4.3 in at the centre of the wheelbase. The
minimum aisle width required for right-angle stacking with 1000 x 1200
mm pallets crossways is 3666 mm or 144.3 in, and for 800 x 1200 mm
pallets lengthways, it is 3866 mm or 152.2 in. The outside turning
radius is 2035 mm or 80.1 in. The truck's operating weight is 4062 kg or
8950 lb.
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