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Clark C15CL Specifications

Basic Information

The Clark C15CL is an LPG-powered forklift that delivers a compelling balance of power, efficiency, and versatility for indoor material handling operations. Its core strength lies in the proven PSI 4G63 (MMC 4G63) engine, a four-cylinder, dual overhead camshaft (DOHC) powerplant providing dependable torque and reliability for continuous use. The engine features a cast iron block and aluminum head construction with a 16-valve configuration (4 per cylinder).

The machine rolls on cushion tires, offering excellent stability and maneuverability on smooth indoor surfaces. Operator control is facilitated through features like hydraulic drum brakes and a well-designed operator compartment. The C15CL is designed for productive operation across various indoor applications.

This model is equipped with cushion tires, offering excellent stability and traction for smooth indoor surfaces. The distance from the centre of the drive axle to the fork face is 14.8 in (375 mm). The wheelbase is 48.0 in (1,220 mm). The total service weight of the truck is 6,054 lb (2,746 kg). When fully laden, the axle load distribution places 8,245 lb (3,740 kg) on the front axle and 1,118 lb (507 kg) on the rear axle. In an unladen state, the front axle load 2,566 lb (1,164 kg), and the rear axle load 3,490 lb (1,583 kg). The overhead guard height is 81.1 in (2,060 mm). The overall length is 122.2 in (3,103 mm). The overall width is 37.0 in (940 mm).

Engine Specs

The Clark C15CL is powered by the PSI 4G63 (MMC 4G63) LPG engine, a robust and reliable powerplant specifically designed for industrial operation. It is a four-cylinder engine with dual overhead camshafts (DOHC) and a total displacement of 122 cu.in (1,997 cc). The engine has a bore x stroke of 85 mm x 88 mm and a compression ratio of 8.8:1. It features a cast iron block, aluminum head construction, and a 16-valve configuration (4 per cylinder).

This engine produces a rated power of 36.8 kW (49.3 hp) at 2,650 rpm, with torque of 101 lb-ft (137 Nm) at 1,800 rpm. The engine manufacturer is Hyundai for some production years, with the Theta model producing 52 hp (38.8 kW) at 2,650 rpm. Lubrication is provided by a pressure-fed system ensuring all moving components are adequately lubricated. Cooling is managed by a liquid-cooled system designed to maintain optimal operating temperatures.

Drive Train

The drivetrain of the C15CL is engineered for precise control and long-term durability.
Transmission: It is fitted with an automatic powershift transmission.
Travel Speed: The forklift achieves a laden travel speed of 10.4 mph (16.7 km/h) and an unladen travel speed of 10.5 mph (16.9 km/h).
Axles: The drive axle is located at the front. The rear steer axle is robust with proven steer axle design.
Brakes: The service brake system utilizes hydraulic drum brakes. The service brake type is drum with hydraulic actuation.

Electrical System

The electrical system is engineered to reliably support the engine, safety features, and lighting. It operates on a standard 12-volt architecture. The system powers the starter motor, engine control systems, and all essential lighting components for safe operation.

Wheels and Tires

The chassis provides a rigid and durable foundation, constructed from heavy-gauge steel with fully welded frame construction to support all major components under load stress. Wheels and Tires: The C15CL is fitted with cushion tires with 2 front and 2 rear wheels.

Front: 18 x 6 x 12.125
Rear: 14 x 4.5 x 8

Track Width:
Front: 31.1 in (789 mm)
Rear: 32.4 in (822 mm)

Drive Configuration: The vehicle utilizes a 2-wheel drive configuration, with the two front wheels serving as the driven wheels.

Steering: The steering system on the Clark C15CL provides smooth and effortless control during low-speed maneuvering and in confined spaces.

Hydraulic System

The hydraulic system is responsible for powering the lifting, tilting, and any auxiliary functions. The system operating pressure for attachments is up to 2,030 psi (140 bar) and is adjustable. The main hydraulic pump has a rated flow of up to 9.2 gpm (35 L/min) for attachments. The mast tilts forward by 8 degrees and backward by 8 degrees. A safety valve provides extra safety and prevents an uncontrolled lowering of the load at all times.

Mast Data

The standard mast configuration is available as a 3-stage upright design depending on application requirements. The fork carriage is Class IIA with hook suspension. The max fork spread is 33 in (840 mm). Mast Height (Lowered): 82.8 in (2,103 mm). Free Lift: 4.1 in (105 mm).

This feature allows for lifting loads at low heights without increasing the overall mast height, a valuable function when entering trailers or working under low-clearance structures. Maximum Fork Height: 121.5 in (3,085 mm). Number of Mast Sections: 3.

Load Capacity

Load Capacity - 3,300 lb (1,500 kg)
Load Centre - 24 in (600 mm)

Performance Data

Lift Speed (Laden): 112 fpm (0.57 m/s)
Lift Speed (Unladen): 112 fpm (0.57 m/s)
Lowering Speed (Laden): 88 fpm (0.45 m/s)
Lowering Speed (Unladen): 88 fpm (0.45 m/s)
Max. Drawbar Pull (Laden): 3,913 lb (17,750 N)
Max. Drawbar Pull (Unladen): 1,808 lb (8,200 N)

Dimensions and Weight

Overall Length: 122.2 in (3,103 mm)
Length to Face of Forks: 80.2 in (2,038 mm)
Overall Width: 37.0 in (940 mm)
Forks (Thickness x Width x Length): 1.57 x 4 x 42 in (40 x 100 x 1,070 mm)
Height of Overhead Guard: 81.1 in (2,060 mm)
Ground Clearance (Minimum): 3.2 in (82 mm)
Ground Clearance (Centre of Wheelbase): 5.0 in (127 mm)
Aisle Width for Pallet 1000 x 1200 (crossways): 138.0 in (3,505 mm)
Aisle Width for Pallet 800 x 1200 (lengthways): 145.9 in (3,705 mm)
Basic Right Angle Stacking Aisle Width: 85.2 in (2,167 mm)
Turning Radius (Outside): 70.5 in (1,790 mm)
Internal Turning Radius: 76.0 in (1,930 mm)
Service Weight: 6,054 lb (2,746 kg)

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