CAT 627G Manual do Utilizador descarregar pdf (Página 4)

C15 Tractor Engine. The Cat C15

Electronically Controlled Unit Injection

(EUI) diesel engine powers the tractor.

With dual horsepower capability,

it provides high power and torque rise

for excellent lugging in tough loading

conditions. The C15 is designed for

long hours of continuous operation with

high displacement and low RPM ratings.

C9 Scraper Engine. The 627G is tandem

for peak performance and high

productivity in self-loading applications.

The C9 has a smaller physical envelope

than the Cat 3306 it replaced, weighs

less, and delivers more horsepower.

In addition, all daily inspection points

are located on the right hand side for

easier maintenance.

Dual Horsepower . Electronic engines

deliver increased power when the auger

is engaged or when the machine is in

the roading gears, providing quicker

acceleration on the haul road.

ACERT Technology. The C15 and the

C9 electronic engines with ACERT

technology meet US EPA Tier 3 and

EU Stage III emission regulations.

ACERT technology reduces emissions

during the combustion process by using

advanced technology in the air and fuel

systems, in conjunction with integrated

electronics. Caterpillar meets emission

regulations at the combustion source

rather than recycling exhaust gases.

Electronic Control Module (ECM).

The ECM responds to operator

commands and engine sensor input

to optimize engine and machine

performance. This advanced engine

management software controls and

protects the engine at all times against

cold starts, high altitude operations and

air filter plugging by monitoring:

• injection timing and pressure

• engine cooling fan speed

• ether starting aid

• hydraulic pumps

ADEM™. The ADEM controls engine

speed by adjusting the fuel duration,

resulting in quicker starts in hot and

cold weather, better fuel economy,

better operator response, and automatic

compensation for altitude and filter

plugging.

Air-to-Air Aftercooling (ATAAC).

Reduces air inlet temperature for

enhanced combustion efficiency,

reduced emissions levels, higher

altitude capability, and more power.

Greater Reliability. The EUI system

has fewer moving parts than mechanical

unit injection and requires few

adjustments. ECM communicates with

the monitoring system (EMS) to warn

the operator of potential problems,

preventing major damage from occurring.

Maintenance. EUI engines have

virtually no mechanically controlled

parts to wear or adjust. These have

been replaced by electronic controls,

reducing maintenance costs and

increasing machine availability.

Control Throttle Shifting (CTS).

Automatically synchronizes engine

speed to transmission speed when

shifting gears. CTS reduces power train

stress and increases component life, as

well as providing a smoother ride for

the operator.

Automatic Ether Injection. ECM

activates the ether injection system

during engine cranking to help ensure

reliable engine start-up in extreme cold

operating conditions.

Directional Shift Management.

During directional shifts or shifts

from neutral during high engine speed,

engages speed clutches before directional

clutches to reduce power train energy

and increase power train life.

Automatic Altitude Compensation.

The ECM automatically matches

fuel delivery to barometric pressure.

Auto deration protects against excessive

combustion temperatures that could

result in component damage.

The new ACERT technology and proven components are electronically integrated to achieve

new levels of performance and efficiency.

Power Train – Engine

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