Cat® C9 ACERT Engine
The C9 engine with ACERT™ Technology delivers, at a rated speed of 2,100 rpm, net power of 173 kW (232 hp) and meets the U.S. Environmental Protection Agency Tier 3 emissions regulations and Stage IIIA EU Emissions Directive 97/68/EC. With high horsepower and low displacement, this innovative engine provides excellent fuel economy and durability which can significantly reduce operating costs.
Torque Rise
The electronically controlled, computer-actuated unit injection fuel system provides high injection pressure and more precisely controlled fuel delivery as the engine lugs back from rated speed, resulting in increased torque above the rated power during heavy loads on machine.
ADEM™ IV Fuel System
A Cat electronic control module provides improved engine response, performance, fuel efficiency, troubleshooting diagnostics and reduced emissions. It allows integration with the electronic transmission control for maximum power train efficiency.
Turbocharger
The turbocharger packs more dense air into the cylinders for more complete combustion and lower emissions, improving performance and engine efficiency. These benefits are especially useful at high altitudes.
Air-to-Air Aftercooler
Emissions are reduced by providing cooler inlet air for more efficient combustion. This also extends the life of the piston rings and bore.
Dual Cooling Jets
Located in the block, dual cooling jets spray oil on the piston skirt and cylinder bores to keep ring temperatures low for long ring and liner life with excellent oil control.
Pistons
Two-piece, articulated pistons with forged steel crowns offer excellent strength and aluminum skirts for reduced weight. The pistons are oil cooled for increased heat dissipation and longer life.
Valves
Four valves per cylinder allow for good air flow, enhancing fuel efficiency and heat rejection. The valves and unit injection system are camshaft-actuated for precise timing.
Crankshaft
Steel-forged, carburized and induction-hardened, the crankshaft offers long-term durability and is dynamically balanced for smooth operation. The crankshaft is also completely regrindable, and the connecting rods can be removed through the tops of the cylinders for easy servicing.
Cat Engine Oil
Recommended for use in Cat diesel engines, Cat Engine Oil is formulated to optimize engine life and performance. The engine oil change interval is 500 hours.
Cat Remanufactured Parts
A large choice of factory remanufactured parts and dealer proposed repair options increase machine availability and reduce total repair costs.
Heavy-Duty Axles and Brakes
The axles and brakes are designed to last in all kinds of operating conditions. Two front axle disc brakes provide improved braking capability and better heat dissipation. Planetary final drives use free-floating, bronze sleeve bearings in the planet gears. • Oil-disc brakes are adjustment-free and fully enclosed to lock out contaminants
Front Axle
The front axle is rigidly mounted to the frame to support the weight of the compactor, internal torque loads and external loads applied during compacting operation.
Rear Axle
A trunnion, two trunnion supports and associated bearings make up the rear axle which oscillates plus or minus eight degrees, ensuring four wheel ground contact for traction and stability.
Four-Piece Axle
The four-piece axle contains two axle shaft housings - the center housing and the intermediate housing. Features and benefits of the four-piece axle design include: • Inboard brakes on the front axle only are positioned immediately adjacent to the differential and operate on the low torque side of the final drive, requiring less braking force to stop the machine
No-SPIN Differentials
Optional No-SPIN differentials are available for improving traction in poor underfoot conditions.
- Front No-SPIN differentials for corner loading, uneven floor applications where weight transfer occurs within the front axle.
- Rear No-SPIN differentials for uphill load operations or any other application where increased weight is transferred to the rear axle.
Both front and rear No-SPIN differentials are needed only for extreme poor underfoot conditions or for straight ahead heavy dozing applications. (NOTE: Both front and rear No-SPIN differentials installed, may reduce steering performance and maneuverability in tight turning radius applications as well as increase operating costs.)
Electronic Power Shift Transmission
Designed, developed and built by Caterpillar, the transmission allows full power speed and directional changes. Fully modulated gear shifts significantly contribute to operator comfort and increase machine productivity as well as component life.
Electronic Clutch Pressure Control (ECPC)/Controlled Throttle Shifting (CTS)
ECPC and CTS sense input from both the transmission and the operator controls in the cab to modulate each individual clutch through a proportional electro-hydraulic valve. This results in smoother shifts in both speed and direction. Energy is modulated into the clutches, resulting in longer clutch life.