CP44 Caterpillar CP44 Specifications & Technical Data (2009—2019)

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Features

Cat C4.4 engine with ACERT Technology provides steady, reliable, clean-burning power that meets U.S. EPA Tier 3 and European Stage IIIa emissions standards.

More Robust Block and Components

The C4.4 has been built with a thicker engine block and more robust components, improving durability and reliability while helping to keep noise levels low. The robust design also contributes to improved cold-weather starting performance.

Low-mounted Oil Pump, Large Oil Cooler

The positioning of the oil pump provides quick start-up lubrication, ensuring less engine wear and a longer engine life. The cooling package has been increased in size by 25%, reducing oil deterioration and varnishing of internal components as well as operating temperatures. Engine oil change interval is every 500 hours.

Engine

Four-stroke, four cylinder turbo Cat C4.4 diesel engine with ACERT. Meets U.S. EPA Tier 3 and European EU Stage IIIa emissions control standards worldwide. Ratings of Cat machine engines are based on standard air conditions of 25°C (77°F) and 100 kPa (29.61" Hg) dry barometer. Power is based on using API gravity of 35 at 15°C (60°F), fuel having a LHV of 42 780 kJ/kg (18,390 Btu/lb) used at 30°C (86°F) ref. a fuel density of 838.9 g/L (7.001 lb/U.S. gal)]. Net power advertised is the power available at the flywheel when the engine is equipped with fan, air cleaner, muffler and alternator. No derating required up to 3000 m (9843') altitude. Dual-element, dry-type air cleaner with visual restriction indicator, glow plug starting aid and fuel/water separator are standard.

Instrumentation

Electronic Control Module (ECM) constantly monitors condition of the engine, and alerts the operator of problems with three levels of warning. The warning system includes: Action Alarm and Lamp, Low Engine Oil Pressure, High Engine Coolant Temperature, High Hydraulic Oil Temperature, Low Charge Pressure, Starting Aid and High Combustion Air Temperature. Instrumentation also includes an Alternator Malfunction Light, Check Engine/Electrical Fault, Service Hour Meter and Fuel Gauge.

Frame

Fabricated from heavy gauge steel plate and rolled sections and joined to the drum yoke at the articulation pivot. The articulation area is structurally reinforced and joined by hardened steel pins. One vertical pin provides a steering angle of ± 37° and a horizontal pin allows frame oscillation of ± 15°. The articulation lock prevents machine articulation when placed in the locked position. Sealed-for-life hitch bearings require no maintenance. The frame also includes tie-down points for transport.

Electrical System

The 24-volt electrical system consists of two maintenance-free Cat batteries. The electrical wiring is color-coded, numbered, wrapped in vinyl-coated nylon braid, and labeled with component identifiers. The starting system provides 750 cold cranking amps (cca) and includes a 75-amp alternator. A new breaker block provides easy access to breakers.

Dual-Pump Propel System

The exclusive Cat dual-pump propel system provides unmatched machine control with minimum drum and wheel slippage in low traction conditions. The dual-pump propel system, unique to Cat compactors, has dedicated pumps to drive the heavy-duty, high-torque rear wheel and drum motors independently. Should the drum or wheels begin to spin, the non-spinning motor still receives hydraulic flow, allowing continuous tractive effort especially useful in loose underfoot conditions.

High Productivity

The Cat dual-pump propel system provides excellent mobility and gradeability. The exclusive Cat pod-style vibratory system provides reliable compactive effort with lower system noise than competitive machines. Larger fuel tank provides greater productivity between refueling stops.

High Versatility

Useful options, like the padfoot shell kit and leveling blade, enhance the versatility and use of the CS44 and CP44.

Padfoot Shell Kit

Available for the CS44, the padfoot shell kit extends the application range of smooth drums to include semi-cohesive and cohesive soils. The padfoot shell comes in two halves that can be easily installed with an appropriate lifting device in about an hour. The kit also comes with a dual purpose bumper that provides storage for scrapers. Padfoot scrapers feature a new design that provides increased removal of materials from the drum face. The shell features 98 pads with a pad height of 90 mm (3.5".

Transmission

Two variable-displacement piston pumps supply pressurized flow to two dual-displacement piston motors. One pump and motor drives the drum propel system while the other pump and motor drives the rear wheels. The dual-pump system ensures equal flow to the drive motors regardless of the operating conditions. In case the drum or wheels lose traction, the other motor can still build additional pressure to provide added torque. The drive motors have two swashplate positions allowing operation at either maximum torque for compaction and gradeability or greater speed for moving around the job site. A rocker switch at the operator’s console triggers an electric over hydraulic control to change speed ranges.

Final Drives and Axle

Final drive is hydrostatic with planetary gear reducer to the drum and hydrostatic with differential and planetary gear reduction to each wheel. Heavy-duty fixed rear axle with a limited slip differential for smooth and quiet torque transfer. Axle Width: 1.27 m (50") Tires: CS44: 14.9" x 24" 6-ply flotation CP44: 14.9" x 24" 8-ply traction.

Engine Bay Airflow

Improved engine bay airflow reduces hot air blowback on the operator’s station and excessive dust. Additionally, the machine features an adjustable seat and wrist rest, unrestricted visibility to the drum and rear of the machine, and minimized vibrations and noise.

Easy to Use

Controls are where you expect them to be. Dials and indicators tell you what you need to know. The comfortable operating station enables the operator to stay alert, safe and productive.

Operator's Station

A tilting steering console provides maximum comfort and easy egress. All controls, levers, switches and gauges are positioned for easy use. The comfortable and durable seat provides adjustment for forward and backward positioning, seat height and suspension stiffness. The seat has flip-up arm rests and a 76 mm (3") wide retractable seat belt. An adjustable wrist rest mounted near the propel lever reduces operator fatigue from extended operation. A floor mat reduces vibrations, and an optional rotating seat provides 20 degrees of pivot adjustment.