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Cat® C7 Engine with ACERT® Technology

ACERT� Technology works at the point of combustion to optimize engine performance. ACERT� Technology incorporates an electronic controller to precisely deliver multiple injections of fuel. These multiple injections are combined with a refined air management system in order to generate fewer emissions and optimize fuel combustion while meeting U.S. EPA Tier 3 and E.U. Stage IIIa engine emission regulations. The C7 engine is a turbocharged, 6-cylinder diesel engine that provides 167 kW (224 hp) of gross power (SAE J1995) at 2200 rpm with a maximum torque of 872 N-m (643 ft/lb).

Cat® C7 Engine with ACERT® Technology

The C7 engine provides a full-rated gross power (SAE J1995) of 167 kW (224 hp) at 2200 rpm with a torque of 872 N-m (643 ft/lb). The combination of large displacement and high torque allow the AP-1055D to perform under the toughest conditions.

HEUI Fuel Injection

The HEUI�� fuel system is unique and combines the technical advancement of an electronic control system with the simplicity of HEUI fuel injection. The HEUI fuel system excels in its ability to control injection pressure over the entire engine operating speed range. These features allow the C7 engine to have complete control over injection timing, duration and pressure.

Multiple Injection Fuel Delivery

Multiple injection fuel delivery involves a high degree of precision. Precisely shaping the combustion cycle lowers combustion chamber temperatures, which generates fewer emissions, optimizes fuel combustion and translates into more work output for your fuel cost.

High Cylinder Pressures

High cylinder pressures combined with tightly controlled tolerances promote extremely efficient fuel burn, less blow-by and lower emissions.

C7 Cylinder Block

The C7 engines cylinder block offers increased tensile strength. It features improved sealing with gaskets to ensure fewer leaks. This new design supports the engines higher compression ratios and increases its power density. The incorporation of straight-thread �O� ring connection points reduce the loss of engine oil and fluids.

Sound Reduction Features

The C7 engine sound reduction features include composite valve covers with a fully isolated base, a steel oil pan and a cast iron front cover. The HEUI�� fuel systems rate-shaping technology also provides control of sound and vibration levels.

Service, Maintenance and Repair Easier service, maintenance and repair

Easier service, maintenance and repair is accomplished by monitoring key functions and logging critical indicators. Advanced electronic diagnostic capabilities are possible using CAT� Electronic Technician.

Turbocharged and Air-To-Air Aftercooling (ATAAC)

The turbocharged air-to-air aftercooling system provides high horsepower with increased response time while keeping exhaust temperatures low for long hours of continuous operation. Air-to-air aftercooling keeps air intake temperatures down, maximizing fuel efficiency and minimizing emissions.

ADEM�¢ A4 Electronic Control Module

The ADEM A4 electronic control module manages fuel delivery, valve timing and airflow to get the most performance per liter (gallon) of fuel used. The control module provides flexible fuel mapping, allowing the engine to respond quickly to varying application needs. The control module also monitors engine and machine conditions while keeping the engine at peak efficiency.

High Ambient Temperature Cooling System

The high capacity cooling system performs efficiently in high ambient temperatures. The variable speed fan draws air across the engine compartment and exhausts it away from the operator and engine compartment in order to provide a cooler working environment for the tractor and screed operators.

Airflow

The airflow design draws ambient air across the engine compartment and through the radiator. This new design allows the exhaust air to exit the right side of the machine in order to provide a cooler engine compartment and operator platform.

High Capacity Cooling Package

The high capacity cooling system allows the fan to run slower, reducing power demand while extending component life.

Variable Speed Fan

The variable speed fan is electronically controlled and hydraulically driven to provide on-demand cooling. This on-demand operation reduces engine power demand and provides quiet operation.

Dual Operator Stations

The AP-1055D incorporates dual operator stations that can be rotated to four different positions. The stations have fully equipped consoles with meter per minute (feet per minute) gauges, adjustable suspension seats, armrests and retractable seat belts. The operator stations can be positioned beyond the machine frame. Extending beyond the frame provides the operator with good visibility when paving wider than 3.05 m (10 ft). This is important when matching a joint or when working along existing structures where precise paving control is required.

Dual Operator Stations

The dual operator stations incorporate fully equipped consoles with meter per minute (feet per minute) gauges, adjustable suspension seats, armrests and retractable seat belts.

Operator Visibility

The dual operator stations can be positioned in one of four different locations to provide optimum visibility. The stations can extend beyond the machine frame for good visibility when joint matching or while paving other applications where precise control is required.

Center Control Console

The center control console includes analog gauges, switches and a digital display for machine functions. The center console also houses a majority of the electrical components for fast, easy service.

Mobil-trac�¢ Undercarriage

The AP-1055D can be purchased with either the Mobil-trac�� undercarriage or the steel track undercarriage. The Mobil-trac�� system combines the traction and flotation benefits of a crawler undercarriage with the mobility, speed, and ride characteristics of a wheel paver. The steel track undercarriage incorporates track rollers and a rear bogey system in order to provide a smooth ride.

Mobil-trac�¢ Undercarriage

The Mobil-trac undercarriage combines the flotation and traction benefits of a crawler suspension with the mobility and ride quality of a wheel-type paver.

Durable Mobil-trac�¢ Belt

The Mobil-trac system includes adurable, high strength rubber track belt with a thick outer cover and five internal layers of flexible steel cable.

Large Ground Contact Area

The Mobil-tracs ground contact area is 3020 mm (119") long and 457 mm (18") wide. This large footprint provides even weight distribution over the entire length of the belt.

Two Speed Planetary Drive

A fixed displacement motor drives a two-speed planetary providing quick mobility around the job site.

Friction Drive

A hydraulic tensioning cylinder with an accumulator maintains friction between the Mobil-trac belt and the drive wheel in order to provide drive traction. Manual adjustment of track tension is not required.

Rubber Coated Steel Mid-Wheels

The fully bogied undercarriage provides low maintenance and long life.

Steel Track Undercarriage (Optional)

The steel track undercarriage provides even weight distribution, good tractive effort and dependable performance. A special quad bogey is positioned near the rear of the steel track in order to evenly distribute the load and a variable displacement motor drives a single-speed planetary in order to provide infinitely variable speed selection.

Quad Rear Bogey

A special quad bogey is positioned near the rear of the steel track in order to evenly distribute the load. The steel track system includes hydraulic cylinders to provide automatic tensioning.

Track Rails

The steel track system incorporates D3 dozer track rails. The sealed and lubricated links include a split master link for dependable performance.

Bonded Track Pads

The track pads contain a special rubber compound in order to provide long life and good traction. The pads are attached with two bolts for easy replacement.

Single Speed Planetary Drive

A variable displacement motor drives a single-speed planetary in order to provide infinitely variable speed selection.

Hydrostatic Drive System

The hydrostatic drive system eliminates chains and other mechanical linkages between the diesel engine and final drive components. A closed-loop hydrostatic propel system incorporates pave, travel and maneuver modes for maximum efficiency and versatility. The speed control system maintains preset paving speeds throughout the job. The machine controller provides accurate control of the steering and propulsion systems, and ensures straight-line tracking.

Closed-Loop Hydrostatic Propel System

The propel system incorporates pave, travel and maneuver modes for maximum versatility.

Propulsion Control

The machine controller provides accurate control of steering and propulsion systems and ensures straight-line tracking.

Speed Control

A speed control dial located on each operator station allows the operator to set a maximum travel speed. When the propel lever is positioned in the full-forward position the paver will travel at the pre-set speed. Each station includes a meters per minute (feet per minute) gauge.

Exclusive Material Delivery System

Productivity and quality enhancements are built-in features.

Mix Delivery

The AP-1055D provides precise mix delivery with minimal operator monitoring through the most advanced material handling system.

Feeders Controlled Independently

Left and right feeders in addition to the left and right augers are controlled independently. The ability to control these four components separately, through a machine controller, eliminates the need for feeder gates.

Mix Delivery Control

In order to control mix delivery, the operator sets a speed rate for each feeder that will maintain the desired mix level in the left and right auger champbers. Once the feeder speeds are set, the ratio of feeder speed to the maximum auger speed is automatically maintained by the machine controller, even through the propel rate may change as the job progresses.

Ratio Control

This ratio control capability is particularly helpful when paving wider on one side of the machine than on the other. Each feeder can be set at a specified speed to deliver the proper amount of mix that is needed.

Outboard Feeder Drives

The feeders have outboard mounted motors, reducers and feeder drive chains to maximize the live feeder tunnel area and reduce center line segregation. This design also provides greater ease of servicing the feeder drive system.

Gateless Feeders

Variable speed feeders precisely control mix delivery while reducing wear and segregation.

Gateless Feeders Run Full of Mix

The gateless feeders on the AP-1055D always run full of mix regardless of the speed required to fill the auger chamber. This is typically a slower speed than would be experienced with a paver utilizing feeder gates to control mix delivery rates. By not always having to run at full speed, feeder component wear is significantly reduced.

Changes in Feeder Speed

When changes in feeder speed are required, delivery of mix to the augers is immediate. This is in contrast to pavers with gates, where any delivery rate change is delayed for the length of time it takes to clear the tunnel of mix from the previous gate setting.

Running at Slower Speeds

Running at slower speeds can also help reduce the opportunity for segregation, especially when working with larger stone mixes that have more of a tendency to segregate.

Feeder Design

The AP-1055D auger drive assembly is independent of the tractor which allows the distance between the two feeders to be significantly reduced. Keeping the feeders close together allows the flow from both feeders to blend together more easily as they discharge into the auger cavity. The tunnel and auger designs eliminate voids under the chain case to minimize segregation.

Auger Assembly

The auger assembly height can be hydraulically adjusted 192 mm (7.6"). The ability to raise the auger assembly simplifies loading and unloading from a transport vehicle. Also, when working with larger stone mixes, segregation can often be eliminated or minimized by raising the augers to allow mix to flow unrestricted under the auger assembly.

Generator System Optional

The generator is integrated within the machine frame and is located below the operator platform, between the dual operator stations. This integrated generator provides power to the electrically heated screed and the auxiliary power panel. A single control switch located on the tractors center control console activates the generator.

Industrial, Single-Phase Generator

The 24 kW generator is hydraulically driven through a load-sensing, pressure-compensating pump providing quiet operation.

Single Control Switch

A single switch on the tractors operating console activates the generator. The generator operates at 1800 rpm and includes GFCI protection.

Full Power

Full power is provided to the electric screed and auxiliary power panel while the engine is operating at low idle speed. A control manifold and internal voltage regulator maintains constant frequency and voltage at both high and low idle.

Auxiliary Power Panel (Optional)

The optional auxiliary power panel is available for simultaneous use with the electric screed. The auxiliary power panel supplies power to four, 120-volt and two, 240-volt receptacles. The 120-volt receptacles are protected with ground fault circuit interruption (GFCI).

Optional Auxiliary Power Panel

The power panel provides 8 kW of power and includes four 120-volt receptacles protected by ground fault circuit interruption (GFCI) and two 240-volt receptacles.

Power Needs

The auxiliary power panel can be used to supply power for night-time lighting and job site work tools.

Auxiliary Power Panel Door

The panel door can remain closed while power cords are attached to the receptacles providing effective protection.

Electric Heat Screeds (Optional)

The AS-2301 and Extend-A-Mat� 10-20B screeds are available with an electric heating system. The electric screed plate heating system eliminates the use of diesel fuel burners, creating a user friendly environment. The screed plates incorporate thermostatically controlled temperature sensors in each screed section including the extenders.

Operator Friendly Environment

The electric screed plate heating system eliminates the use of diesel fuel burners, creating a user friendly environment.

Fast Warm-Up Time

The electric screed provides a warm-up time in 30 minutes or less to 122� C (220� F) when ambient temperatures are at or above 22� C (40� F).

Simple Operation

The screed control panel incorporates touch-pad technology with high intensity LEDs that promote simplified use and diagnostic capability with minimal operator training.

Multi-Zone Heating Elements

The heating elements are mounted to the screed plates in a multi-zone configuration to provide even heat distribution.

Thermostatically Controlled

The screed plates incorporate thermostatically controlled temperature sensors in each screed section including the extenders. The temperature sensors provide inputs to the screed controller.

Serviceability

Simplified service means more paving time and less maintenance time. Large swing-open doors and panels provide convenient access to service areas. Transverse engine mounting provides ground-level access to hydraulic pumps and the engine cooling system. Color-coded and numbered wiring simplifies troubleshooting of the electrical systems. The standard 500-hour engine oil change interval increases machine up-time.

Electronic Monitoring System EMS-III

EMS-III simplifies calibration of hydraulic and electrical systems and is compatible with CAT� Electronic Technician (CAT ET).

Large Access Doors and Panels

Preventative maintenance points can be accessed through the large swing open access doors and panels.

Remote Lubrication Points

Grease fittings are grouped to provide quick, routine service of bearings.

Quick-Connect Sampling Ports

The quick-connect ports simplify retrieval of critical fluids for diagnosis.

Color-Coded and Numbered Electrical System

Troubleshooting is efficient and simplified with the color-coded and numbered electrical system.

Engine

Weights

Operating Specifications

Drive System

Service Refill Capacities

Hopper

Dimensions