CP76 Caterpillar CP76 Specifications & Technical Data (2008—2014)

Dual Propel Pumps

The exclusive dual pump propel system provides a separate balanced hydraulic flow to both the rear drive axle and the front drum drive motor for excellent machine control and increased tractive effort in loose or poor underfoot conditions.

Propel Pump System

Propel pump system. The dual propel pump system has dedicated pumps to independently drive the heavy-duty, high-torque rear wheel and drum motors. Should loss of traction to either motor occur, there is always hydraulic flow to the non-spinning motor, allowing continuous tractive effort. Controllability gives the operator complete machine control to stop, maintain machine position and change directions while on a slope, especially useful on loose underfoot conditions. The pressure override (POR) valve limits maximum system pressure by de-stroking the propel pumps. This reduces pump flow while maintaining system pressure, lowering the horsepower draw while accelerating the machine, which saves fuel.

Versatility and Utilization

Expands machine versatility and utilization while providing a simple and cost-effective solution for jobs that may require both padfoot and smooth drum compaction.

Engine

Cat C6.6 Electronic Diesel Engine with ACERT Technology delivers 130 kW (177 hp) and is built for performance, reliability and lower emissions.

Cat® C6.6 Electronic Diesel Engine with ACERT™ Technology

Industry-proven Caterpillar technology designed to provide unmatched performance, reliability and fuel economy with ample power for the most demanding jobs.

ACERT Technology

ACERT Technology combines proven systems with innovative new technologies to precisely shape the combustion process, providing more complete combustion of fuel and lower emissions. Improved cold weather starting enhances maximum reliability. Additionally, the more robust block and components improve durability and reliability while producing less noise. The low-mounted oil pump ensures quick start-up lubrication, and the large oil cooler reduces oil deterioration and varnishing of internal components, allowing for 500 hour engine oil change intervals. Furthermore, the emissions compliant engine meets European EU Stage IIIA emissions control standards.

Ecology Drains

Ecology drains provide an environmentally safer method to drain fluids. Drains are included on the radiator, engine oil pan, hydraulic and fuel tank.

Instrumentation

The Electronic Control Module (ECM) constantly monitors the condition of the engine and alerts the operator if a problem occurs, with three levels of warning. The warning system includes: Action Alarm and Lamp, Low Engine Oil Pressure, High Engine Coolant Temperature, High Engine 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.

Comfort and Serviceability

Comfort and serviceability you deserve. The operator’s station provides a comfortable and easy-to-use environment that promotes productive operation. Simplified service access and extended service intervals minimize maintenance time and increase productive work time.

Tilting Steering Column

Steering console angle is infinitely adjustable for maximum comfort. Tilt capability provides easy entrance and exit for the operator.

Operational Gauges

Steering console and instrumentation gauges are infinitely adjustable within the tilt range to the desired position of the operator. The entire console tilts for simple entrance and exit.

Mast

Designed to position the GPS receiver over the center of the drum, the mast deploys hydraulically with a hand pump. When not in use, the mast folds into a secure storage position, making ground-level removal of the receiver easy. The mast includes all electrical wiring and harnesses.

All-Weather Connectors

Nylon braided wrap and all-weather connectors ensure electrical system integrity. Electrical wiring is color-coded, numbered, and labeled with circuit identifiers to simplify troubleshooting. Fuses are easy to access.

Frame

Fabricated from heavy gauge steel plate and rolled sections, the frame is 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 ± 34°, while a horizontal pin allows frame oscillation of ± 15°. A safety lock prevents machine articulation when placed in the locked position, and sealed-for-life hitch bearings never need maintenance. The frame also includes tie-down points for transport.

Brakes

The closed-loop hydrostatic drive system provides dynamic braking during operation. Secondary brakes are activated by: a button on the operator’s console; loss of hydraulic pressure in the brake circuit; or when the engine is shut down. A brake interlock system helps prevent driving through the secondary brake.

Vibratory System

Pod-style eccentric weights ensure peak compaction performance and minimal service. High dynamic force helps achieve density in the fewest number of passes. Scheduled oil sampling of the vibratory system is no longer required, reducing maintenance costs and increasing machine uptime. The pod-style vibratory system, proven reliable on previous soil compactors, delivers superior compactive force while offering serviceability advantages. Pod-style weight housings are assembled and sealed at the factory to ensure cleanliness, longer bearing life, and easier field exchange or service. Dual amplitude works efficiently in a wider range of applications, with high or low amplitude selected from the operator’s station. The vibratory frequency of 30 Hz results in high compaction, and an optional variable frequency control is available with a frequency range from 23.3-30 Hz, allowing frequency to be better matched to varying job conditions. Large heavy-duty bearings for the eccentric weight shaft are designed for high compactive forces, and a 3 year/3000 hour vibratory bearing lube service interval reduces maintenance. Scheduled oil sampling is no longer required, further reducing maintenance costs and increasing machine uptime.

Serviceability

The one-piece fiberglass hood tilts forward to allow access to the engine and daily maintenance points. Daily check points are accessible from ground level. The rear-mounted cooling system allows easy access for cleaning, and the hydraulic oil cooler tilts down for convenient access and easier cleaning. The operator’s platform tilts forward to provide convenient access to the hydraulic components. A vibratory bearing lube service interval of 3 years/3000 hours keeps maintenance to a minimum and maximizes production. No vibratory system scheduled oil sampling means less vibratory system maintenance. The articulation hitch features sealed-for-life bearings that never need maintenance, and the hydraulic system oil change interval is now 2 years/2000 hours.

Heavy-duty scraper

The scraper design features wide, individually adjustable and replaceable scrapers mounted on the front and rear of the drum, reducing excessive material build-up between the pads.

Dual-purpose bumper

The bumper included with the shell kit does not need to be removed. This bumper can also accept the optional leveling blade, which increases machine versatility even further. The bumper provides convenient, bolt-on storage for smooth drum scraper plates when they are not being used.

Padfoot shell halves

Padfoot shell halves can be quickly and easily installed or removed in about an hour with the use of an approved lifting device.

Amplitude and Reliability

Positive amplitude selection is accomplished when the steel shot is repositioned inside the hollow eccentric weight. The direction of weight shaft rotation determines the amplitude level. High reliability is ensured since there is no chance of the high-strength spherical steel shot wedging together. System reliability is superior to swinging mechanical weights and is also quieter during starts and stops. Simplified control from the operator’s station is achieved with a selection switch on the operator’s console, contributing to a longer service life as there are no heavy weights to slam together, and no metal fragments to contaminate the bearing lubrication system.

Productivity and Reliability in a Durable Package

The durable and reliable CS76, CP76 and CS76 XT Soil Compactors offer high compaction performance, speed and gradeability to maximize productivity.

Visibility

The one-piece sloped hood design, narrower rear fenders, and more cab glass to the rear provide exceptional operator visibility to the outside edge of the rear tires and to the rear of the machine.

Operator’s Station

The CS76, CP76, and CS76 XT Soil Compactors feature excellent operator comfort and visibility. A tilting steering column, propel lever wrist rest, grouped control gauges and conveniently located control switches enhance operator productivity and reduce fatigue. Four heavy-duty isolation mounts provide a smooth ride. Standard rearview mirrors, two front-facing and two rear-facing working lights are provided.

Spacious and comfortable environment

Large windows with more glass added to the rear of cab provide exceptional visibility. Generous interior space with storage areas, excellent ergonomics, and low sound levels.

Fully equipped cab

Items included with cab include two exterior rear view mirrors, two front-facing and two rear-facing working lights, front and rear windshield wipers, slide-open side windows and climate control with heater and defroster. New foot rests added to the floor of the cab provide sure footing and greater operator comfort. The cab is now pre-wired for the addition of a radio set (radio not included). A 12-volt outlet has been added for powering personal communication devices.

Standard equipment

Standard equipment includes two front-facing and two rear-facing working lights, hand rails with angled foot rests, a lockable vandalism guard and a rear view mirror.

Maximum comfort

Comfortable and durable vinyl seat is adjustable with flip-up arm rests and a 76 mm wide retractable seat belt. Optional rotating seat available.

Single lever control

The single lever control for propel and vibratory On/Off provides simple and low effort operation. A padded adjustable wrist rest provides comfort.

Operator comfort

Hot air directed away from operator prevents hot air from blowing on operator, improving operator comfort and productivity.

Improved operator visibility

Minimized dust clouds because discharged air is not directed towards ground and does not contribute to the production of dust clouds.

Reliability and Serviceability

CS76, CP76 and CS76 XT Soil Compactors continue to provide the exceptional reliability and serviceability that you’ve come to expect from Caterpillar.