CAT 345C L User Manual
345C L
Hydraulic Excavator
Cat®C13 Diesel Engine with ACERT™ Technology
Net Power (ISO 9249) at 1800 rpm 239 kW/325 hp
Operating Weight 48 800 to 52 300 kg
Maximum Travel Speed 4.4 km/h
Maximum Reach 11.7 m
Maximum Digging Depth 7.5 m
®
2
Electronic Control System
ADEM™ A4 maximizes fuel efficiency
and performance by maintaining the
optimum balance between engine speed
and hydraulic demand. pg. 7
Operator Station
An all-new cab provides improved
visibility and comfort. The new monitor
is a full-color graphical display with
enhanced functionality to provide
simple, comprehensive machine
interface. pg. 6
Environmentally Responsible Design
Quieter operation, lower engine
emissions, less fluid disposal and
cleaner service can help you meet or
exceed worldwide regulations and
protect the environment. pg. 4
Application and System Match
The 345C L is designed for matched
performance with Cat articulated trucks.
Five to six passes under two minutes,
matched to the Cat 735 gives you
maximum systems production. pg. 5
Outstanding performance
Excellent control, high stick and bucket forces,
impressive lift capacity, simplified service and
a more comfortable operator station to increase
your productivity and lower your operating costs.
Hydraulics
Hydraulic system has been updated
to increase lifting and breakout forces.
New Tool Control improves versatility.
pg. 5
SmartBoom
TM
More productive. Faster cycle times
for truck loading and rock scraping.
Maintains optimum hammering
frequency for effective, steady
productivity. pg. 9
Engine
The Cat®C13 engine has state-of-the-art
ACERT™ technology to meet emission
regulations with exceptional performance
capabilities, fuel efficiency and proven
reliability. pg. 4
345C L Hydraulic Excavator
High performance and rugged durability combine to maximize your productivity.
3
Extreme Service
Undercarriage attachment includes next
size larger components for increased
stability and extra rugged reliability in
severe applications. pg. 8
Booms, Sticks and Linkage
Caterpillar excavator booms and sticks
are built for performance and long
service life. Two types of booms
and four sticks are available, offering
a range of configurations suitable
for a wide variety of applications.
The bucket linkage pins have been
enlarged to improve reliability and
durability. All booms and sticks are
stress relieved. pg. 11
Structures
Caterpillar design and manufacturing
techniques assure outstanding durability
and service life from these important
components and using thicker plates at
the boom foot area to improve rigidity.
pg. 9
Undercarriage
Cat designed excavator undercarriage
is stable, durable and low maintenance.
The undercarriage is a long, variable
gauge type for good machine stability
and transportability. pg. 8
Service and Maintenance
Fast, easy service has been designed
in with extended service intervals,
advanced filtration, convenient filter
access and user-friendly electronic
diagnostics for increased productivity
and reduced maintenance costs.
pg. 10
Complete Customer Support
Your Cat dealer offers a wide range
of services that can be set up under a
customer support agreement when you
purchase your equipment. The dealer
will help you choose a plan that can
cover everything from machine and
attachment selection to replacement.
pg. 10
Buckets, Quick Coupler, Work Tools
A variety of work tools, including
buckets, couplers, hammers, crushers,
pulverizers, multiprocessors, shears
and grapples are available through
Cat Work Tools. pg. 12
4
Environmentally Responsible Design
Caterpillar machines not only help you build a better world, they help maintain
and preserve the fragile environment.
Outstanding performance.
Many features designed to provide
outstanding performance which
can mean more work done in a day,
less fuel consumption and minimal
impact on our environment.
Emissions. ACERT Technology is a
differentiated technology that reduces
emissions at the point of combustion.
The technology capitalizes on
Caterpillar’s proven leadership in three
core engine systems: fuel, air and
electronics.
Quiet operation. The hydraulically
driven cooling fan is thermostatically
controlled, so the fan only runs at the
speed necessary to maintain correct
system operating temperatures. The
result is cool quiet operation with less
disturbance to the surrounding
environment.
Ozone protection. To help preserve
the earth’s ozone layer, the air
conditioning unit uses only R-134a
refrigerant which does not contain
harmful chlorofluorocarbons (CFC’s).
Fewer leaks and spills. Engine oil and
encapsulated hydraulic oil filters are
positioned vertically and are easy to reach
to minimize spillage. Service intervals are
extended to reduce the times fluids are
changed and handled. The new hydraulic
oil fine filtration system attachment
extends the service interval from 2000 to
5000 hours. Compatible with Cat HEES
hydraulic bio-oil for ecologically sensitive
applications. Finally, the new Cat
Extended Life Coolant extends service
(up to 6000 h) so there is less need for
fluid disposal.
Engine
Built for power, reliability, economy and low emissions.
Performance. The Cat C13 engine
with ACERT Technology offers 21%
greater displacement than the 3176C,
and runs at 10% lower speeds for better
fuel economy and reduced wear.
Fuel Consumption. ADEM A4 controller
uses sensors throughout the engine to
manage engine load and performance.
The ADEM A4 controller is the muscle
behind engine responsiveness, selfdiagnostics, controlling emissions,
and fuel economy.
Low Sound and Vibration Levels.
The engine mounts are rubber-isolating
mounts matched with the engine
package to provide optimum sound and
vibration reduction. Another benefit of
ACERT Technology, the C13 engine
can shape the rate of fuel injection,
a process that reduces engine noise
levels and vibration.
Fuel System. The Cat C13 ACERT
engine features electronic controls that
govern the mechanically actuated unit
fuel injection (MEUI) system. MEUI
provides the high-pressure required to
help reduce particulate emissions and
deliver better fuel economy through
finer fuel atomization and more
complete combustion.
Cooling System. The 345C L layout
separates the cooling system from the
engine compartment. The cooling fan
is hydraulically driven with a variable
speed control that manages fan speed
to provide optimized cooling.
Air Cleaner. The radial seal air filter
features a double-layered filter core for
more efficient filtration and is located
in a compartment behind the cab.
A warning is displayed on the monitor
when dust accumulates above a preset
level.
Turbocharger. The Cat C13 ACERT
engine uses a Wastegate Turbocharger
for improved performance.
Cold Weather Starting Kit. The kit
consists of four batteries, heavy-duty
harness, large capacity starting motor
and the ether starting aid. With this kit,
the 345C L has the capability to start
at -32°C.
5
Hydraulics
Cat hydraulics deliver power and precise control to keep material moving.
Pilot System. The hydraulic pilot
system controls the front linkage,
swing and travel operations.
Component Layout. The 345C L
hydraulic system and component
locations have has been designed
to provide a high level of overall
system efficiency.
Hydraulic Cross-Sensing System.
The two main hydraulic pumps
use 100 percent of available
horsepower resulting in faster
implement speeds and increased
productivity.
Boom and Stick Regeneration Circuit.
Saves energy during boom-down and
stick-in operation, providing shorter cycle
times and lower operating costs.
Boom and Swing Priority. The hydraulic
system on the 345C L provides automatic
priority function for boom-up and swing
operations eliminating the need for work
mode buttons. When the boom or swing
lever is activated, the system automatically
assigns priority based on operator demand.
Heavy Lift Feature. The operator can select
the heavy lift mode at the push of a button
to boost lifting capability and provide
improved controllability of heavy loads.
Biodegradable Hydraulic Oil.
Biodegradable hydraulic oil is available
as an option.
Auxiliary Hydraulic Valve.
The auxiliary valve is standard. It is used
with optional control arrangements to
operate tools such as hammers and shears.
shears, grapples, hammers, pulverizers,
multi-processors and vibratory plate
compactors.
Hydraulic Cylinder Snubbers.
Snubbers are located at the rod-end of the
boom cylinders and both ends of the stick
cylinders to cushion shocks while reducing
sound levels and extending component life.
Applications and Systems Match
The 345C L is designed for matched performance with Cat Articulated Trucks.
Wide range of front end attachments.
Providing choices for systems
matching to a range of Cat
articulated trucks from the 730
to the 740. This adds flexibility
for a wide range of job conditions
in a variety of applications such as
construction, mining or quarry.
Additionally, systems match
offers versatility in job set-up
whether top loading or same level
truck loading.
Optimum pass match design.
Five to six passes under two minutes,
matched to the Cat 735, gives you
maximum systems production at
the lowest cost per ton of material
moved.
Maximum availability.
New standards for durability and
reliability help ensure that your
loading system has more uptime,
operates efficiently and provides
lasting value and high resale.
Tool Control System. The various settings
allows you to optimize the excavator to the job
layout. Five hydraulic pump flow and pressure
setting can be preset, on the monitor, eliminating the need to adjust the hydraulics each time
a tool is changed. The unique Cat proportional
sliding switches provides modulation to the
tool and the precision work easy.
Quarry Package. The new Quarry
Package attachment consists of a bucket
cylinder guard and reinforcement bars
on the stick, for extra protection in the
most severe conditions.
6
Cab Design. The workstation is spacious,
quiet and comfortable, assuring high
productivity during a long work day.
The air conditioner and attachment switches
are conveniently located on the right-hand
wall, and the key switch and throttle dial
are on the right-hand console. The monitor
is easy to see and maximizes visibility.
Seat. A new optional air suspension seat
is available in the 345C L. The standard
and optional seats provide a variety of
adjustments to suit the operator’s size
and weight including fore/aft, height and
weight. Wide adjustable armrests and
a retractable seat belt are also included.
Skylight. An enlarged skylight with
sunshade provides excellent visibility
and good ventilation.
Hydraulic Activation Control Lever.
For added safety, this lever must be in
the operate position to activate the machine
control functions.
Climate Control. Positive filtered ventilation
with a pressurized cab comes standard.
Fresh air or re-circulated air can be
selected with a switch on the left console.
Windows. To maximize visibility,
all glass is affixed directly to the cab
eliminating the use of window frames.
Choice of fixed or easy-to-open split
front windshield meet operator
preference and application conditions.
50/50 split front windshield allows
both upper and lower portions to be
stored in an overhead position.
70/30 split front windshield stores
the upper portion above the operator.
The lower front windshield features
a rounded design to maximize
downward visibility and improves
wiper coverage.
Both openable versions feature
a one-touch action release system.
The fixed front windshield is available
in standard duty laminated glass or
high impact resistant laminated glass.
Wipers. Parallelogram wiper, including
a washer nozzle is mounted below the
cab windshield, optimizes the operator’s
viewing area and offers continuous and
intermittent modes.
Monitor. The compact, full-color,
graphical display monitor, new with the
345C L, displays machine, maintenance,
diagnostic and prognostic information,
in twenty different languages.
Monitor angle can be adjusted to
minimize sun glare.
Cab Exterior. The exterior design uses
thick steel tubing along the bottom
perimeter of the cab, improving the
resistance of fatigue and vibration.
This design allows the FOGS to be
bolted directly to the cab, at the factory
or as an attachment later, enabling
the machine to meet specifications
and job site requirements.
Cab Mounts. The cab shell is attached
to the frame with viscous rubber cab
mounts, which dampen vibrations
and sound levels while enhancing
operator comfort.
Operator Station
Designed for simple, easy operation and comfort,
the 345C L allows the operator to focus on production.
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