Milton CAT 315D L User Manual

315D L

Hydraulic Excavators

®

Cat® C4.2 ACERT™ Engine

Gross Power 91 kW 122 hp
Net Power (SAE J1349) 86 kW 115 hp

Weights

Operating Weight – Long Undercarriage 17 280 kg 38,095 lb

315D L Features

Comfortable Operator Station

Spacious and quiet, this world class cab
lets the operator focus on performance
and production.

Industry Leading Performance

The Cat® C4.2 ACERT™ engine delivers more
power for increased digging ability, lifting
performance and overall productivity.

Maximum Versatility

Easily configure a large variety of work tools
with the Cat Tool Control System.

Proven Reliability

Caterpillar® design and manufacturing
techniques provide maximum uptime with
outstanding durability and service life.

Low Emissions Engine

Move more material using less fuel with the
Cat C4.2 ACERT engine. This meets Tier 3
and EU Stage IIIA emissions while providing
additional power and performance.

Contents

Operator Station . . . . . . . . . . . . . . . . . . . . .3

Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Hydraulics . . . . . . . . . . . . . . . . . . . . . . . . . .5

Undercarriage and Structures . . . . . . . . .6

Front Linkage . . . . . . . . . . . . . . . . . . . . . . . .6

Versatility . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Serviceability. . . . . . . . . . . . . . . . . . . . . . . .8

Technology Products . . . . . . . . . . . . . . . . .9

Customer Support. . . . . . . . . . . . . . . . . . .10

Specifications . . . . . . . . . . . . . . . . . . . . . .11

Standard and Optional Equipment. . . . .22

Increased horsepower, improved controllability and
a comfortable, redesigned operator station help make
the Cat

®

315D L Hydraulic Excavator an industry-leading
performer. Easy to operate with unmatched versatility,
the 315D L will help increase productivity and lower
operating costs.

Operator Station

New levels of comfort, visibility and operation.

Cab

Experience a spacious, quiet and comfortable operator station.
The cab is pressurized to 50 Pa to reduce the amount of dust
that enters the cab, keeping the operator comfortable the entire
shift, while assuring high productivity during long work days.

• The comfortable seat adjusts to suit the operator’s size and
weight. Available as an option is the air suspension seat.

• Standard air conditioning with automatic climate control
adjusts temperature and airflow.

• Low effort joystick controls are designed to match the operator’s
natural wrist and arm position. Joysticks can be operated with
arms on the armrest. The horizontal and vertical strokes are
designed to reduce fatigue.

Prestart Check and Monitor Display

Prior to starting the machine, the system checks for low engine
oil, hydraulic oil and engine coolant fluid levels and warns the
operator through a color Liquid Crystal Display (LCD) monitor.
The LCD monitor displays vital operating and performance
information in 27 different languages, for operator convenience.

Cab Exterior

The 315D L provides a new cab design that allows the Falling
Object Guard System (FOGS) to be bolted directly to the cab,
at the factory or as an attachment, enabling the machine to meet
specifications and job site requirements. The cab shell is attached
to the frame with viscous rubber cab mounts that dampen
vibrations and sound levels to enhance operator comfort.

Machine Security System

An optional Machine Security System (MSS) utilizes a
programmable key, deterring theft, vandalism and unauthorized
usage. MSS uses electronically coded keys selected by the
customer to limit usage by individuals or time parameters.

3

Engine

Clean, quiet operation with superior power.

The Cat C4.2 engine with ACERT technology optimizes performance and meets U.S. EPA Tier 3 and EU Stage IIIA regulations.
In conjunction with integrated electronics, ACERT technology reduces emissions during the combustion process by using advanced
technology in the air and fuel systems. The Cat C4.2 engine has five percent more power than the former engine, allowing for more
hydraulic pressure and increased productivity.

Automatic Engine Control and Fuel Delivery

A three-stage control with one-touch command maximizes fuel efficiency and reduces sound levels. Fuel delivery is managed by the
ADEM™ A4 Engine Controller for the best performance per liter (gallon) of fuel used. Flexible fuel mapping allows the engine to
respond quickly to varying application needs.

Electronic controls govern the fuel injection system. Multiple injection fuel delivery involves a high level of precision and by
precisely shaping the combustion cycle, lowers combustion chamber temperatures, generates fewer emissions and optimizes fuel
combustion. This means more work output for your fuel cost.

Crankshaft and Pistons

A forged, one-piece, induction hardened crankshaft enhances balance, decreases vibration and improves abrasion resistance.
Heat resistant, aluminum alloy pistons have a short compression height for greater efficiency and longer life.

Economy Mode

Available as a standard feature, economy mode allows you to balance the demands of performance and fuel economy while
maintaining the breakout forces and lift capacity enjoyed at standard power.

4

Hydraulics

High efficiency and performance with low effort and precise control.

Outstanding Performance

With two percent more hydraulic pressure for additional lift
and breakout forces, the 315D L hydraulic system is designed
for high efficiency and performance. Auxiliary hydraulic and
electrical lines are routed to the boom foot making installation of
hydraulic circuits much easier. The new compact design utilizes
shorter tubes and lines, reducing friction and pressure drops,
resulting in a more efficient use of power.

• Hydraulic snubbers at the rod end of the boom cylinders and
both ends of the stick cylinders cushion shock, reduce sound
and increase cylinder life.

• Flow is reduced to a minimum when controls are in neutral
to reduce fuel consumption and extend component life.

• Hydraulic Cross-Sensing System uses two hydraulic pumps
to 100 percent of engine power under all operating conditions,
improving productivity with faster implement speeds and
quicker, stronger pivot turns.

• Improved balance and lift capacity with six percent increase
in additional counterweight.

Boom and Stick Regeneration Circuit

The boom and stick regeneration circuit saves energy during
boom-down and stick-in operation, increasing efficiency and
lowering operating cost.

Easy Operation

Work mode and power mode switches have been eliminated
making full power available at all times. Operators do not
need to learn different modes, an automatic boom and swing
priority function automatically selects the best mode based
on joystick movement.

5

Undercarriage and Structures

Excellent stability and maneuverability.

Caterpillar uses advanced engineering and software to analyze all
structures, creating a durable, reliable machine for the toughest
applications. More than 70 percent of the structural welds are
robotic and achieve additional penetration over manual welds.
These structural components and undercarriage are the backbone
of the machine’s durability.

Carbody Design

X-shaped, box section carbody provides excellent resistance to
torsional bending. Robot-welded track roller frames are press­formed, pentagonal units that deliver exceptional strength and
service life. Integral to the track roller frame are the standard
idler and center guards, which help maintain track alignment
when traveling or working on slopes.

Grease Lubricated Track

Grease lubricated track seals protect the track link and deliver
long track link pin and bushing inner wear life.

Front Linkage

Performance, reliability
and durability.

Built for performance and long service life, Cat booms and
sticks are welded, box-section structures with thick multi­plate high strength steel fabrications. The 315D L offers
one boom with four different stick options.

Intermediate Stick

A new 2.9 m (9'6") stick is available to provide long reach
and increased digging and lifting capability. When equipped
with a coupler or large bucket the new stick will increase
overall performance and productivity.

Travel Motors

Travel motors with automatic speed selection let the 315D L
automatically change up and down from high and low speeds
in a smooth, controlled manner.

Boom

The boom is designed for maximum digging capability and is
robotic welded to ensure consistent quality. This allows excellent
all-around versatility and a large working envelope.

Versatility

Do more with Cat Work Tools.

Work Tools

Caterpillar offers a variety of work tools, including Hammers,
Thumbs, Grapples, Multi-processors, Shears, Pulverizers,
Vibratory Compactors and Rippers to fit your application needs.
Additionally a wide range of buckets are available to optimize
machine performance.

Auxiliary hydraulic and electrical lines are routed to the boom
foot for easier installation of auxiliary hydraulic circuits therefore
reducing time, parts and cost required to add a work tool.

Hydraulic Pin Grabber Coupler

An optional hydraulic pin grabber is available to pick up a
wide variety of work tools without having to leave the cab,
thus maximizing productivity.

Cat K Series™ Tooth System

The Cat K Series™ Tooth System provides more wear material,
a longer tip and adapter life, a one-piece vertical drive retainer,
reliable tip retention and easy installation and removal,
improving performance and penetration.

Enhanced Systems

Work Tool functionality has increased the versatility of the
machine with the enhancement of the following:

• A Combined System enables one or two pump flow in one
or two directions. With this system only one hydraulic circuit
is required.

• The Tool Control system stores up to 10 different tool settings
through the in-cab display monitor. Cat work tools are
selectable with preset flows and pressures.

• Offered as an option, the Priority Flow system provides
one-way hydraulic work tools, such as a mower, priority
for hydraulic flow.

7

Serviceability

Simplified service and maintenance saves time and money.

Designed with the service technician in mind, many service
locations are at ground level so critical maintenance can be done
quickly and efficiently. Longer maintenance intervals reduce
cost and increase machine availability.

• Oil level gauge, oil filter, fuel filter and priming pump are on
the right side of the upper structure for easy maintenance.

• An optional electronic fuel water sensor is available to alert
the operator when the water level is high.

• Product Link assists with fleet management by tracking hours,
location and product health.

• New anti-skid plates over the top of the storage box and upper
structure help prevent slipping and mud from falling into the
upper structure.

Sampling Ports

Equipped with S•O•SSM sampling ports and test ports for
hydraulics, engine oil and coolant for quick diagnostics. A test
connection for the Cat Electronic Technician (Cat ET) service
tool is now located in the cab.

Air Cleaner

A double-layered filter core in the radial seal air filter gives
more efficient filtration. A warning is displayed on the monitor
when dust accumulates above a preset level. This filter is
conveniently located in the compartment behind the cab.
An optional pre-cleaner is also available to extend filter life
and reduce maintenance costs.

Capsule Filter

Capsule-type, hydraulic return filter is accessible from outside
the tank and prevents contaminants from entering the system
when changing the hydraulic oil.

Radiator Compartment

Horizontal air conditioner condenser swings out for easy
cleaning. Removable screens are located in front of the radiator
and hydraulic cooler, reducing cleaning time and effort.

8