Milton CAT 390D L User Manual

390D L

Hydraulic Excavators

Engine

Engine Model Cat
Net Power – ISO 9249 390 kW 523 hp
Net Power – SAE J1349 390 kW 523 hp

Weights

Operating Weight – Long Undercarriage 86 190 kg 190,016 lb

®

C18 ACERT™ (ATAAC)

Drive

Maximum Travel Speed 4.5 km/h 2.8 mph
Maximum Drawbar Pull 590 kN 132,637.25 lb

Features

Performance

High level of sustained production, improved
performance, reliability and durability increase
your productivity and lower your operating costs.

Engine

The Cat® C18 engine uses ACERT™ Technology
tomeet U.S. EPA Tier 3 emission regulations
withexceptional performance capabilities
andproven reliability.

Operator Station

Superior cab comfort and visibility provide an
excellent working environment. The full-color
monitor with graphic display features enhanced
functionality to provide a simple, comprehensive
machine interface.

Maximum Versatility

A variety of work tools, including buckets, are
available for applications such as demolition,
site clean-up, scrap processing, breaking up road
surfaces and bedrock through Cat® Work Tools.

Service and Maintenance

Fast, easy service has been designed in
withlongservice intervals, advanced  ltration,
convenient  lter access and user-friendly
electronic diagnostics for increased productivity
and reduced maintenance costs.

Contents

Hydraulics ............................................................3

Operator Station ..................................................4

Engine ...................................................................5

Control System ....................................................6

Structures.............................................................7

Undercarriage .....................................................8

Front Linkage .......................................................9

Buckets and Teeth ............................................10

Work Tools ..........................................................11

Environment .......................................................12

Service and Maintenance ...............................13

Complete Customer Support ...........................14

390D L Hydraulic Excavator

Speci cations ....................................................15

390D L Standard Equipment ............................26

390D L Optional Equipment ..............................27

The Cat® 390D L Hydraulic Excavator has excellent control,
high stick and bucket forces, impressive lift capacity,
simpli ed service and a comfortable operator station to
increase your productivity and lower operating costs.

2

Hydraulics

Precise power and control to move more material

Main Pumps

The hydraulic system includes three pumps with an
independent swing circuit. The hydraulic circuit utilizes
a load-sensing system to ensure high ef ciency and
productivity with little hydraulic loss.

Swing Dampening Valve

A swing dampening valve reduces wagging, which produces
smoother, time-saving swing stops.

Implement Pressure

Increased implement pressure provides shorter cycle times,
stronger digging forces and greater bucket  ll factors.

Auxiliary Hydraulics

Standard auxiliary hydraulics are managed electronically,
making the machine more versatile.

Proportional Priority Pressure Compensation (PPPC)
Hydraulics

The load-sensing PPPC system with proprietary electronic
actuation provides excellent ef ciency and controllability.

• Pump discharge  ow matches the operator’s desired
speed, which makes for extremely smooth shifting
fromneutral to full stroke.

• Pump  ow volume all goes to the actuator, which
ensures the delivery of maximum hydraulic energy.

• Even if load pressure changes during actuation, the
control lever position does not vary, which makes
forconsistent, reliable operation.

3

Operator Station

Simple and comfortable for maximum productivity

Cab Design

The spacious cab provides excellent visibility and
ergonomics. The full-color monitor provides the operator
with easy-to-read, comprehensive machine information.

Cab Exterior

The cab utilizes thick steel tubing along the bottom toreduce
vibration and fatigue. The cab structure allows the FOGS
to be bolted directly to the cab either at the factory or as
anattachment.

Cab Mounts

The cab shell is attached to the frame with viscous rubber
cab mounts, which dampen vibrations and sound levels
toenhance operator comfort.

Additional Features

The 390D L operator station has many features
foroperatorcomfort.

• Premium air suspension seat with adjustable/tilt console.

• Low effort joysticks.

• Numeric view of fuel consumption on the monitor.

• Optional rearview camera for added safety.

• Optional HID (High Intensity Discharge) lights
withtime delay for the boom and cab lights.

• Two-way radio-ready option.

4

Engine

Power to move more dirt with less fuel

Cat® C18 Engine

The C18 engine with ACERT™ Technology powers the 390D L. The C18 has a proven record of long
life. Materials like high-strength steels and cast iron contribute to its durability, while uniquely designed
water-cooled turbochargers and mechanically actuated fuel injection contribute to its reliability.

Improved Fuel Ef ciency

The 390D L optimizes fuel consumption through  exible power settings incorporated into the
ADEM™controller, which electronically manages engine response to load demand. The operator
canselect High Production, Standard or Economy mode to meet application requirements.

Hydraulic Cooling Fans

The 390D L uses hydraulically driven cooling fans that operate based on coolant and hydraulic oil
temperatures. To reduce load when cranking the engine, the cooling fan speed is  xed for a set amount
of time after the engine is started and then is increased gradually to a speci c speed.

Reversible Fan

A reversible fan option is offered to help clean the cooling package for increased uptime and reduced
service cost.

5

Control System

Easy to view, easy to manage

Monitor Display

The monitor is a full-color Liquid Crystal Display (LCD).
Amaster caution lamp blinks ON and OFF when one
ofthecritical conditions below occurs:

• Engine oil pressure low

• Coolant temperature high

• Hydraulic oil temperature high

Under normal conditions or the default condition, the
monitor display screen is divided into four areas: clock and
throttle dial, gauge, event display and multi-functional display.

Gauge Display

Three analog gauges – fuel level, hydraulic oil temperature
and coolant temperature – are displayed in this area.

Pattern Control Changer

The standard hand control pattern changer can be accessed
through the monitor to utilize either the standard excavator
control pattern or backhoe loader pattern, making it easier
for operators to work in the mode they are accustomed.

Electronic Joysticks

Electronic joysticks provide features not possible with
hydraulic pilot valves:

• Eliminate pilot lines in cab for quieter operation

• Simple pattern change through the monitor

Operator Gain/Response

This is used to suit the operator preference or application.

• Faster for quick response

• Slower for more precision

Product Link

Product Link is a proprietary Caterpillar technology that
tracks machine location, product health, hours of use and
fuel consumption. This information is transmitted back
tocustomers to help maximize machine productivity.

6

Structures

Rugged and durable for many applications

Variable Gauge Undercarriage

The long variable gauge undercarriage is standard, providing a wide, stable base for operating
oranarrow gauge for reduced shipping width. Changes to the 390D L undercarriage include:

• Improved track link to reduce and avoid stresses

• Improved carrier rollers to reduce the risk of leaking lubrication oil

• Improved forged idler for added durability in severe underfoot conditions

• Positive Pin Retention 2 (PPR2) to prevent pin movement

Counterweight

The 390D L has two counterweights available – both heavier to accommodate the reinforced
frontlinkage.

Catwalks

Slip-resistant catwalks are 500 mm (19.5 in) wide and stretch the length of the machine to safely
provideaccess to major service points.

Track Roller Frame

The thick, steel-plated track roller frame is welded into a box structure, which provides increased
rigidity and impact resistance.

7

Undercarriage

Strong, stable and durable

Undercarriage

The undercarriage supports the swing bearing and upper structure and is the link that transmits the
reaction forces from digging to the ground. The strength of the Cat undercarriage plays a major factor
in machine stability and durability.

Track Roller Frame

The track roller frame has been improved by installing a longer stroke recoil spring and lowering the
front idler. The longer recoil spring improves durability and service life of the undercarriage, and the
offset idler increases the stability of the machine while working over the front.

Positive Pin Retention 2 (PPR2)

Track links with the PPR2 are provided as standard on the 390D L. The PPR2 is designed to prevent
looseness of the track pin in the track link and to reduce stress concentrations. The PPR2 system
eliminates pin movement for increased service life.

Carrier Rollers

The carrier rollers use a  oating Duo-Cone seal, which reduces the risk of leaking lubricating oil.

8

Front Linkage

Built to perform the toughest tasks

Front Linkage

Cat® Excavator booms and sticks are built for performance
and long service life.

• Castings and forgings are used at high stress areas
suchas the boom nose, boom foot, boom cylinder
andstick foot.

• All booms and sticks are stress-relieved for optimal
lifeand durability while minimizing weight for
improvedperformance.

• All booms and sticks are ultrasonic inspected
toensurereliability.

Bucket Linkage

Two bucket linkages are available for the 390D L. Both are
available with or without a lifting eye.

Boom Construction

390D L booms feature a large cross section to improve
strength, reduce weight and maximize payload. Baf e plates
reinforce the boom interior for higher rigidity.

Stick Construction

Sticks are made of high-tensile strength steel in a box-section
design, making them strong and light. All sticks are reinforced
with a thick baf e plate for added rigidity. The connection
between stick and boom is made of forged steel, and a thick
steel plate is used at the bucket connecting location for increased
strength and rigidity at load-bearing points. An additional
wear plate is added to the bottom plate to protect against
damage. There are two reach sticks, three general purpose
sticks and two mass sticks available to meet your needs.

Linkage Pins

All front linkage pins have thick chrome plating, giving them
high wear resistance. Each pin diameter is made to distribute
the shear and bending loads associated with the stick and
tohelp ensure long pin, boom and stick life.

9