Engine
Engine Model Cat®C6.4 ACERT™
Net Flywheel Power 110 kW 148 hp
Weights
Operating Weight – 23 530 kg 51,875 lb
Long Undercarriage
• Reach boom, R2.9B1 (9 ft 6 in) Stick, 0.9 m3(1.18 yd3)
Bucket, 600 mm (24 in) Shoes
Operating Weight – 24 180 kg 53,308 lb
Long Undercarriage 2
• Reach boom, R2.9B1 (9 ft 6 in) Stick, 0.9 m3(1.18 yd3)
Bucket, 800 mm (32 in) Shoes
321D LCR
Hydraulic Excavator
®
®
2
321D LCR Hydraulic Excavator
The D Series incorporates innovations for improved performance and versatility.
The Caterpillar 321D LCR excavator
provides all the elements to give you the
lowest cost to own and operate. At the end
of the day, it all comes down to how much
work you got done and how much did it cost
you. Caterpillar and the 321D LCR offer
you the tools to help lower your owning
and operating costs.
Versatility
Caterpillar offers a wide variety of
factory-installed attachments that
enhance performance and job site
management. pg. 12
Hydraulics
The hydraulic system has been designed
to provide reliability and outstanding
controllability. An optional Tool
Control System provides enhanced
flexibility. pg. 6
C6.4 with ACERT™ Technology
ACERT™ Technology works at the
point of combustion to optimize engine
performance and provide low exhaust
emissions to meet U.S. EPA Tier 3
emission regulations, with exceptional
performance capabilities and proven
reliability. pg. 5
✔
Compact Radius
The 321D LCR is a “Compact Radius”
machine developed so that it can work
in the narrow job-site. The cylindrical
upper frame and cylindrical operator
station, allow the 321D LCR to rotate
in the narrower job-sites. pg. 4
Work Tools – Attachments
A variety of work tools, including
buckets, couplers, hammers, and shears
are available through Cat®Work Tools.
pg. 11
✔
✔ New Feature
3
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 configuration
to eventual replacement. pg. 14
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. 13
✔
Booms, Sticks and Bucket Linkages
The bucket linkage pins on the mass
excavation configuration have been
enlarged to improve reliability and
durability. pg. 10
Operator Comfort
Provides maximum space, wider
visibility and easy access to switches.
The monitor is a full-color graphical
display that allows the operator to
understand the machine information
easily. Overall, the new cab provides
a comfortable environment for the
operator. pg. 8
✔
Structures
Caterpillar®design and manufacturing
techniques assure outstanding durability
and service life from these important
components. pg. 7
Compact Radius. The 321D LCR features
a compact radius design, which makes
it ideal for working in space restricted
areas such as: close to buildings, road
construction – limiting lane closures
or logging roads. The tail swing is
just 1.68 m (5'6") as compared to the
2.75 m (9'0") on the 320D. When rotated
90 degrees and working over the side,
a minimal amount of counterweight
extends beyond the track width.
Operator Confidence. Due to the
321D LCR’s compact working
envelope, operators can work
confidently knowing that the
counterweight will not swing
into any object behind them.
Comfort. The cab on the 321D LCR is
a comfortable place to work, with low
sound levels, good visibility and
convenient access to switches and
controls. The 321D LCR cab offers
many of the same amenities and
options found in the cab of the
320D/320D LRR.
Working Envelope. To further minimize
the working envelope, the boom is
repositioning more towards the center
of the machine as compared to a
standard excavator. This reduced the
front swing radius when the boom is
pulled all the way up and the stick
brought in completely. This design
also increases the lift capacity of the
321D LCR over the front as it has a
better mechanical advantage when
compared to a standard excavator.
4
Compact Radius
The 321D LCR delivers exceptional performance and comfort.
Cat C6.4. The Cat C6.4 with ACERT™
Technology introduces a series of
evolutionary, incremental improvements
that provide breakthrough engine
technology. The building blocks of
ACERT Technology are fuel delivery,
air management and electronic control.
ACERT Technology optimizes engine
performance while meeting U.S. EPA
Tier 3 emission regulations. With its
proven technology, robust components
and precision manufacturing, you can
count on this engine to power up at start
time and keep working productively all
shift long.
Performance. The 321D LCR, equipped
with the C6.4 engine with ACERT™
Technology, provides 7% more power
as compared to the 3066TA in the
321C LCR. The additional power
delivers a speed and efficiency advantage
in high production applications.
Automatic Engine Speed Control.
The two-stage, one-touch control
maximizes fuel efficiency and reduces
sound levels.
ADEM™ A4 Engine Controller.
The ADEM A4 electronic control module
manages fuel delivery to get the best
performance per liter of fuel used.
The engine management system provides
flexible fuel mapping, allowing the
engine to respond quickly to varying
application needs. It tracks engine and
machine conditions while keeping the
engine operating at peak efficiency.
Electronic Control Module.
The Electronic Control Module (ECM)
works as the “brain” of the engine’s
control system, responding quickly to
operating variables to maximize engine
efficiency. Fully integrated with sensors
in the engine’s fuel, air, coolant, and
exhaust systems, the ECM stores and
relays information on conditions such
as rpm, fuel consumption, and
diagnostic information.
Fuel Delivery. The Cat C6.4 features
electronic controls that govern the fuel
injection system. Multiple injection
fuel delivery involves a high degree
of precision. Precisely shaping the
combustion cycle lowers combustion
chamber temperatures, generating
fewer emissions and optimizing fuel
combustion. This translates into more
work output for your fuel cost.
5
C6.4 with ACERT™ Technology
The Cat®C6.4 gives the 321D LCR exceptional power and fuel efficiency unmatched in the
industry for consistently high performance in all applications.
Component Layout. To optimize
efficiency of hydraulic performance,
the hydraulic components are located
close together, which reduces friction
loss and pressure drops in the lines.
System Pressure. System pressure has
been increased to 35 000 kPa (5,076 psi),
which attributes to improved
performance:
• Increased stick and bucket forces
(up 7% higher than the 321C LCR)
to better handle those tight digging
conditions
• More drawbar pull (206 kN/46,322 lb)
to provide more ability to climb
slopes, easier spot turns and
improved travel in poor underfoot
conditions
• More lift capacity, generally over
the front where you are generally
hydraulically limited
Heavy Lift. The 321D LCR features the
addition of a heavy lift, which increases
system pressure to 36 000 kPa (5,220 psi),
giving even more lift capacity over
the front. Heavy Lift is activated be
depressing the soft switch on the right
hand console. As the pressure increases,
the engine speed is reduced, which allows
better control while lifting objects.
Pilot System. The pilot pump is
independent from the main pumps and
controls the front linkage, swing and
travel operations.
Hydraulic Cross Sensing System.
The hydraulic cross sensing system
utilizes each of two hydraulic pumps to
100 percent of engine power, under all
operating conditions. This improves
productivity with faster implement
speeds and quicker, stronger pivot turns.
Boom and Stick Regeneration Circuit.
Boom and stick regeneration circuit
saves energy during boom-down and
stick-in operation which increases
efficiency, reduces cycle times and
pressure loss for higher productivity,
lower operating costs and increased
fuel efficiency.
Auxiliary Hydraulic Valve. The auxiliary
valve is standard on the 321D LCR.
Control Circuits are available as
attachments, allowing for operation of
high and medium pressure tools such as
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.
6
Hydraulics
Cat®hydraulics deliver power and precise control to keep material moving.
Robust Undercarriage. A solid
foundation built tough to absorb the
stresses of everyday work.
• Rollers and idlers are sealed and
lubricated to extend service life.
• Track links are assembled and sealed
with grease to decrease internal
bushing wear and increase life by
as much as 25%, when compared
to dry seal undercarriages.
• Spring recoil system stroke has been
increased to better relieve excess
track tension, which can occur when
material builds up between the track
and sprocket.
Rugged Structures. Structural
components and the undercarriage
are the backbone of the machine’s
durability. Caterpillar places a lot of
emphasis on the machine’s durability
during the designing and manufacturing
of its excavators.
• Up to 95% of the structural welds
are welded by robots, which achieve
up to three times the penetration of a
manual weld and improving overall
durability of the machine.
• The 321D LCR’s main frame
utilizes high-tensile strength steel
and a one-piece swing table, which
improves strength and reliability.
• The carbody has a X-shaped, box
section design to resist bending and
twisting forces.
• Track roller frames are press-formed
in a pentagonal shape for additional
strength.
Engine Hood. The 321D LCR features a
one-piece, flat engine hood. The engine
hood opens backwards and is located in
a place that does not obstruct access to
inspection points in the engine
compartment.
Counterweight. The counterweight
is split into two pieces for improved
serviceability. The top piece weighs
approximately 2268 kg (5,000 lb), and
the bottom weighs 3832 kg (8,450 lb).
The counterweight is a rounded cast
structure that minimizes the amount
of overhang.
7
Structures
321D LCR is designed to handle the most rugged operating conditions, while providing long
life and value.
8
Caterpillar offers the most intuitive and easy to operate excavators while providing great all
around visibility and exceptional operator comfort.
Operator Comfort
Operator Station. The layout of the
interior has been redesigned to
maximize operator comfort and
reduce operator fatigue.
• Frequently used switches have
been relocated for easier access.
• Consoles and armrests have been
redesigned for better comfort and
adjustability.
• More seat options – choose from
the standard mechanical suspension
seat, or the optional air suspension
seat with heater. Both provide
excellent comfort.
Standard Cab Equipment. To enhance
operator comfort and productivity,
the cab includes a lighter, drink holder,
coat hook, service meter, literature
holder, magazine rack and storage
compartment.
Joystick Control. Joystick controls have
low lever effort and are designed to
match the operator’s natural wrist and
arm position.
Hydraulic Activation Control Lever.
For added safety, this lever must be
in the operate position to activate the
machine control functions.
Climate Control. Climate control adjusts
temperature and flow, and determines
which air outlet is best in each situation
with a touch of a button.
Cab Exterior. The cab is made of
pressed-steel plates. The pillars, beams
and crossbeam, are formed box-shape,
which improves the resistance of fatigue
and vibration.
Hand Control Pattern Changer
(Optional). Switches the joystick
pattern between ISO and SAE patterns.
For easy access, the pattern changer is
located in the cab, underneath the floor
mat. In order to change positions, simply
remove the bolt, slide the lever into the
appropriate location, then secure the bolt.
Sliding Door. The cab door slides
alongside the cab and takes less space
to open and close than a hinged door.
This unique design allows the operator
to easily get in and out of the cab when
working next to objects or walls.
Skylight. An enlarged skylight with
sunshade provides excellent visibility
and ventilation.
Monitor. The monitor is a full color
Liquid Crystal Display that gives
you vital operating and performance
information, alerts in text, all in a
simple, east to navigate format.
Default Display. Three analog gauges,
fuel level, hydraulic oil temperature
and coolant temperature, are displayed
in this area.
Main Menu. Four menu options
to choose from:
Settings – Adjust monitor settings,
select work tool or choose video mode
(when equipped with a camera)
Maintenance – Displays service
intervals and hours accumulated since
last serviced.
Performance – Displays machine
performance attributes such as Engine
Speed, Coolant and Hydraulic Oil
Temperature.
Service – Allows access to machine
parameters for service intervals,
diagnostic information and information
related to the machines software.
Event Display. Machine information is
displayed in this area with the icon and
language.
Multi-information Display. This area
is reserved for displaying various
information which is convenient for the
operator. The “CAT” logo is displayed
when no information is available to be
displayed.
9
Front Linkage Options. The Reach Boom
allows excellent all-around versatility
and a large working envelope. It can be
equipped with the following two sticks:
• R2.9B1 – performs well in a midrange working envelope
• R2.5B1 – a good match when the job
requires a larger bucket or a hammer
Bucket Linkage. The power link
improves durability, increases machinelifting capability in key lifting positions
and with the integrated lift-eye it is
easier to use than compared to the
previous power link. The lift eye also
gives you the optimum lift performance.
It allows you to lower the load point,
which maximizes the use of the boom
cylinders.
10
Booms, Sticks and Bucket Linkages
Built for Performance and long service life, Caterpillar®booms and sticks are large, welded,
box-section structures with thick, multi-plate fabrications in high stress areas.
Wide Variety of Work Tools. Caterpillar
offers a complete line of work tools to
match all of your application needs:
• Hammers – matched to Cat
machines for optimum performance
• Thumbs, Stiff Link, Full Rotation –
transforms your 321D LCR into a
versatile material handling machine
• Grapples – choose from a large
variety of grapples that best suit
your application
• Multi-processors – does the work
of many types of demolition tools
by use of interchangeable jaws
• Shears – features 360 degree
rotation and high force to weight
ratio
• Pulverizers – ideally suited for
rapid, non-explosive demolition
applications
• Vibratory Plate Compactors – provide
superior compaction force in a
reliable, low maintenance package
• Rippers – perfectly suited for
trenching and pipeline applications
where conditions aren’t favorable
to traditional ripping methods
Caterpillar Buckets. The most extensive
choice of buckets that can optimize
machine performance and match your
application needs.
• General Purpose Buckets – for
digging in low impact, moderately
abrasive materials such as dirt, loam,
gravel and clay.
• Heavy-Duty Buckets – for use in
abrasive applications such as mixed
dirt, clay and rock.
• Heavy-Duty power Buckets – for
use in abrasive applications where
breakout force and cycle times are
critical – good for materials such
as mixed dirt, clay and rock.
• Ditch Cleaning Buckets – wide and
shallow for ditch cleaning, bank
forming and finishing.
Caterpillar Ground Engaging Tools
(GET). Choose from a wide variety of
tips that maximize bucket and machine
performance. Sidecutters and sidebar
protectors are also available.
Pin Grabber Plus Hydraulic Pin Grabber
Couplers. Multiply the versatility and
utility of 321D LCR.
• Hydraulic Pin Grabber Plus – allows
quick and easy tool changes without
having to leave the cab. Picks up a
large variety of tools equipped with
standard pins.
• Dedicated Coupler – no loss of tip
radius, maximizing the breakout
forces on your 321D LCR.
11
Work Tools – Attachments
The 321D LCR has an extensive selection of work tools to optimize machine performance.
Auxiliary Hydraulic Options. Allows
you to configure your 321D LCR to
meet your work tools needs, while
increasing its versatility.
• Single Function Circuit – suited for
tools that require one-way flow with
both pumps, such as hammers,
vibratory plate compactors.
• Double Function Circuit – suited for
tools that require two-way flow,
utilizing one pump, such as thumbs
or non-rotation grapples or shears.
• Tool Control System
– Accommodates single or double
function tools, as well as rotating tools
when equipped with medium pressure.
– Stores pressure and flow information
for up to 10 tools
– Cat tools selectable that have preset
flows and pressures
– Shortcut button on right hand console,
making tool selection easier.
Product Link. Both the PL121 and
PL321 are available as factory installed
attachments. PL121 gives you Asset
Watch, which includes the following
features:
• Engine hours
• Machine location
• Time based fences (when the
machines can operate)
• Geo-based fences (boundaries that
the machine can operate) PL321
gives you all of the features listed
for PL121, plus the ability to include
Health and Maintenance Watch.
• Health Watch
°
Codes from on-board
EDM’s/Sensors
°
Estimated Fuel Consumption
°
Fuel Watch
• Maintenance Watch
°
Preventative Maintenance Planning
°
Preventative Maintenance Checklists
°
Overdue PM Notification
°
PM History Recording
Machine Security. An optional Machine
Security System is available from the
factory on the 321D LCR. This system
controls when the machine can be
operated and utilizes specific keys
to prevent unauthorized machine use,
a significant theft deterrent.
More Attachments. The 321D LCR
offers the most options available to
equip your machine to best match your
application and work environment
requirements. From track shoe size
to guarding packages to operator
comfort options, the 321D LCR
offers more options.
12
Versatility
A wide variety of optional factory-installed attachments are available to enhance
performance and improve job site management.
Ground Level Service. The design and
layout of the 321D LCR was made
with the service technician in mind.
Many service locations are easily
accessible at ground level allowing
critical maintenance to get done quickly
and efficiently.
Air Filter/Radiator Compartment.
The left rear service door allows easy
access to the engine radiator, oil cooler
and air-to-air-aftercooler.
A wire mesh screen is provided between
the aftercooler and radiator/oil cooler,
where these is enough clearance to blow
off debris using a wand. The air filter,
also located within this compartment,
features a double-element construction
for superior cleaning efficiency.
When the air cleaner plugs, a warning
is displayed on the monitor screen
inside the cab.
Access to the washer tank and
maintenance points for the electric
components, such as the battery, circuit
breaker and controller are also located
in this compartment. The jump-start
receptacle, which is an attachment for
the cold weather package, is located
near the battery.
Pump Compartment. A service door on
the right side allows for ground level
access to the hydraulic pump, case drain
and pilot filters.
Greasing Points. A concentrated remote
greasing block on the boom delivers
grease to hard-to-reach locations on
the front.
Anti-Skid Plate. Anti-skid plate covers
top of storage box and upper structure
to prevent slipping during maintenance.
Diagnostics and Monitoring.
The 321D LCR is equipped with S•O•S
SM
sampling ports and hydraulic test ports
for the hydraulic system, engine oil,
and for coolant. A test connection for
the Cat Electronic Technician (Cat ET)
service tool is located in the cab.
Extended Service Interval. 321D LCR
service and maintenance intervals
have been extended to reduce machine
service time and increase machine
availability.
13
Service and Maintenance
Simplified service and maintenance features save you time and money.
Product Support. You will find nearly
all parts at our dealer parts counter.
Cat dealers utilize a worldwide computer
network to find in-stock parts to
minimize machine down time.
Save money with remanufactured
components.
Machine Selection. Make detailed
comparisons of the machines you are
considering before you buy. What are
the job requirements, machine
attachments and operating hours?
What production is needed? Your Cat
dealer can provide recommendations.
Customer Support Agreements.
Cat dealers offer a variety of product
support agreements, and work with
customers to develop a plan the best
meets specific needs. These plans can
cover the entire machine, including
attachments, to help protect the
customer’s investment.
Operation. Improving operating
techniques can boost your profits.
Your Cat dealer has videotapes, literature
and other ideas to help you increase
productivity, and Caterpillar offers
certified operator training classes to
help maximize the return on your
investment.
Maintenance Services. Repair option
programs guarantee the cost of repairs
up front. Diagnostic programs such as
Scheduled Oil Sampling, Coolant
Sampling and Technical Analysis
help you avoid unscheduled repairs.
Replacement. Repair, rebuild, or replace?
Your Cat dealer can help you evaluate
the cost involved so you can make the
right choice.
SAFETY.CAT.COM™.
14
Complete Customer Support
Cat®dealer services help you operate longer with lower costs.
15
321D LCR Hydraulic Excavator specifications
Swing Mechanism
Swing Speed 11.5 rpm
Swing Torque 61.8 kN·m 45,612 lb ft
Drive
Maximum Drawbar Pull 206 kN 46,311 lb
Maximum Travel Speed 5.7 km/h 3.5 mph
Hydraulic System
Main Implement System – 205 L/min 54 gal/min
Maximum Flow (2x)
Max. pressure – Equipment 35 000 kPa 5,076 psi
Max. pressure – Equipment – 36 000 kPa 5,221 psi
Heavy
Max. pressure – Travel 35 000 kPa 5,076 psi
Max. pressure – Swing 25 000 kPa 3,626 psi
Pilot System – Maximum flow 32.4 L/min 9 gal/min
Pilot System – Maximum 3900 kPa 566 psi
pressure
Boom Cylinder – Bore 120 mm 4.7 in
Boom Cylinder – Stroke 1260 mm 49.6 in
Reach Stick Cylinder – Bore 140 mm 5.5 in
Reach Stick Cylinder – Stroke 1518 mm 59.8 in
B1 Family Bucket Cylinder – 120 mm 4.7 in
Bore
B1 Family Bucket Cylinder – 1104 mm 43.5 in
Stroke
Sound Performance
Performance ANSI/SAE J1166 APR 90
• When properly installed and maintained, the cab offered
by Caterpillar, when tested with doors and windows closed
according to ANSI/SAE J1166 OCT 98, meets OSHA and
MSHA requirements for operator sound exposure limits
in effect at time of manufacture.
• Hearing protection may be needed when operating with
an open operator station and cab (when not properly
maintained or doors/windows open) for extended periods
or in noisy environment.
Standards
Brakes SAE J1026 APR90
Cab/FOGS SAE J1356 FEB88
Engine
Engine Model Cat®C6.4 ACERT™
Net Flywheel Power 110 kW 148 hp
Net Power – ISO 9249 110 kW 148 hp
Net Power – SAE J1349 110 kW 148 hp
Net Power – EEC 80/1269 110 kW 148 hp
Bore 102 mm 4.02 in
Stroke 130 mm 5.12 in
Displacement 6.4 L 389 in
3
• The 321D LCR meets U.S. EPA Tier 3 emissions requirements.
• Net flywheel power advertised is the power available at the
flywheel when the engine is equipped with fan, air cleaner,
muffler and alternator.
• No engine power derated below 2300 m (7,500 ft).
Weights
Operating Weight – Long 23 530 kg 51,875 lb
Undercarriage
Operating Weight – Long 24 180 kg 53,308 lb
Undercarriage 2
• Reach boom, R2.9B1 (9 ft 6 in) Stick, 0.9 m3(1.18 yd3) Bucket,
600 mm (24 in) Shoes
• Reach boom, R2.9B1 (9 ft 6 in) Stick, 0.9 m3(1.18 yd3) Bucket,
800 mm (32 in) Shoes
Service Refill Capacities
Fuel Tank Capacity 330 L 87 gal
Cooling System 25 L 6.6 gal
Engine Oil 30 L 8 gal
Swing Drive 8 L 2.1 gal
Final Drive (each) 8 L 2.1 gal
Hydraulic System (including tank) 208 L 55 gal
Hydraulic Tank 120 L 32 gal
Hydraulic Tank (Including 133 L 35 gal
suction pipe)
Track
Number of Shoes Each Side – 49
Long Undercarriage
Number of Track Rollers Each 8
Side – Long Undercarriage
Number of Carrier Rollers Each 2
Side – Long Undercarriage
16
321D LCR Hydraulic Excavator specifications
Dimensions
All dimensions are approximate.
2
3
1 9
6
7
8
Boom Options Reach — Reach —
5.68 (18'7") Stick 5.68 (18'7") Stick
Stick Options R2.9B1 m (9'7") Std/SA R2.5B1 m (8'2") Std/SA
1 Shipping Height 3030 mm (9'11") 3030 mm (9'11")
2 Shipping Length 8880 mm (29'2") 8880 mm (29'2")
3 Tail Swing Radius 1676 mm (5'6") 1676 mm (5'6")
4 Length to Center of Rollers
Long 3650 mm (12'0") 3650 mm (12'0")
5 Track Length
Long 4455 mm (14'7") 4455 mm (14'7")
6 Ground Clearance 450 mm (1'6") 450 mm (1'6")
7 Track Gauge
Long 2380 mm (7'10") 2380 mm (7'10")
8 Transport Width 800 mm Shoes 600 mm Shoes
Long 3180 mm (10'5") 2980 mm (9'9")
9 Cab Height 2980 mm (9'9") 2980 mm (9'9")
4
5
Note: All numbers are approximate
17
321D LCR Hydraulic Excavator specifications
Reach Reach Reach Reach
5.68 m (18'7") 5.68 m (18'7") 5.68 m (18'7") 5.68 m (18'7")
Stick Length R2.9B1 m (9'7") R2.5B1 m (8'2") R2.9B1 m (9'7") R2.5B1 m (8'2")
Bucket 1.0 m3(1.31 yd3) 1.0 m3(1.31 yd3) Pin Grabber Pin Grabber
Quick Coupler with Quick Coupler with
1.0 m3(1.31 yd3) 1.0 m3(1.31 yd3)
1 Maximum Reach @ 9790 mm (32'1") 9390 mm (30'10") 10 050 mm (33'0") 9650 mm (31'8")
Ground Level
2 Maximum Digging Depth 6710 mm (22'0") 6290 mm (20'8") 6970 mm (22'10") 6550 mm (21'6")
3 Minimum Loading Height 2960 mm (9'9") 3380 mm (11'1") 2710 mm (8'11") 3120 mm (10'3")
4 Maximum Loading Height 7890 mm (25'11") 7600 mm (24'11") 7630 mm (25'0") 7340 mm (24'1")
5 Maximum Vertical Wall 5890 mm (19'4") 5490 mm (18'0") 5200 mm (17'1") 4810 mm (15'9")
Digging Depth
6 Maximum Cutting Height 11 010 mm (36'1") 10 720 mm (35'2") 11 260 mm (36'11") 10 970 mm (35'0")
7 Maximum Depth Cut for 6280 mm (20'7") 5880 mm (19'3") 6560 mm (21'6") 6140 mm (20'2")
a 2440 mm (8 ft) Level Bottom
8 Minimum Front Swing Radius 2340 mm (7'8") 2280 mm (7'6") 2340 mm (7'8") 2280 mm (7'6")
Working Ranges
0
1
2
3
4
5
6
7
8
9
10
11
6
7
8
5
4
3
2
1
01234567891011 1
15
10
20
25
5
0
5
10
15
20
25
30
35
05101520253035
2.9 m (9'7")
2.5 m (8'2")
Meters
Feet
MetersFeet
2.9 m (9'7")
2.5 m (8'2")
Pin Grabber
Pin Grabber
0
1
2
3
4
5
6
7
8
9
10
11
6
7
8
5
4
3
2
1
01234567891011 1
Meters
Feet
sMeterFeet
05101520253035
15
10
20
25
5
0
5
10
15
20
25
30
35
1
6
2
5
7
4
3
8
1
6
2
5
7
4
3
8
18
321D LCR Hydraulic Excavator specifications
Bucket and Stick Forces
Bucket and Stick force are calculated with different buckets than those calculated for working range.
General Purpose Buckets R2.9B1 Stick R2.9B1 Stick w/Coupler R2.5B1 Stick R2.5B1 Stick w/Coupler
Bucket Digging Force (ISO) 140 kN (31,361 lb) 116 kN (26,145 lb) 140 kN (31,361 lb) 116 kN (26,145 lb)
Bucket Digging Force (SAE) 125 kN (28,079 lb) 108 kN (24,189 lb) 125 kN (28,079 lb) 108 kN (24,189 lb)
Stick Digging Force (ISO) 106 kN (23,897 lb) 100 kN (22,436 lb) 118 kN (26,460 lb) 110 kN (24,706 lb)
Stick Digging Force (SAE) 103 kN (23,223 lb) 98 kN (22,009 lb) 114 kN (25,628 lb) 107 kN (24,144 lb)
Power Buckets R2.9B1 Stick R2.9B1 Stick w/Coupler R2.5B1 Stick R2.5B1 Stick w/Coupler
Bucket Digging Force (ISO) 163 kN (36,711 lb) 124 kN (27,809 lb) 163 kN (36,711 lb) 124 kN (27,809 lb)
Bucket Digging Force (SAE) 144 kN (32,417 lb) 113 kN (25,493 lb) 144 kN (32,417 lb) 113 kN (25,493 lb)
Stick Digging Force (ISO) 109 kN (24,482 lb) 102 kN (22,863 lb) 121 kN (27,202 lb) 112 kN (25,224 lb)
Stick Digging Force (SAE) 106 kN (23,717 lb) 99 kN (22,301 lb) 117 kN (26,235 lb) 109 kN (24,527 lb)
Heavy Duty/Rock Buckets R2.9B1 Stick R2.9B1 Stick w/Coupler R2.5B1 Stick R2.5B1 Stick w/Coupler
Bucket Digging Force (ISO) 140 kN (31,563 lb) 117 kN (26,258 lb) 140 kN (31,563 lb) 117 kN (26,258 lb)
Bucket Digging Force (SAE) 125 kN (28,079 lb) 107 kN (24,144 lb) 125 kN (28,079 lb) 108 kN (24,212 lb)
Stick Digging Force (ISO) 106 kN (23,920 lb) 100 kN (22,458 lb) 118 kN (26,505 lb) 110 kN (24,729 lb)
Stick Digging Force (SAE) 103 kN (23,200 lb) 98 kN (21,964 lb) 114 kN (25,606 lb) 107 kN (24,100 lb)
Major Component Weights
Base machine with counterweight and shoes (without front linkage)
Long undercarriage with 800 mm shoes 20 200 kg 44,533 lb
Two boom cylinders 344 kg 758 lb
Counterweight 6100 kg 13,448 lb
Boom (includes lines, pins and stick cylinder)
Reach boom 5.7 m (18'5") 1660 kg 3,660 lb
Stick (includes lines, pins, bucket cylinder and linkage)
R2.9B1 (9'7") 970 kg 2,138 lb
R2.5B1 (8'3") 940 kg 2,072 lb
Undercarriage
[includes carbody, swing bearing, trackframe, rollers, idlers, steps, guards, final drive]
L undercarriage with 800 mm shoes 7850 kg 17,306 lb
All weights are approximate.
19
321D LCR Hydraulic Excavator specifications
321D LCR Bucket Options
Weight
Adapter Capacity* Width Tip Radius (without tips) Teeth
3
m
yd
3
mm in mm in kg lb Qty R2.9B1 w/QC R2.5B1 w/QC
B Family
General Purpose K80 0.55 0.72 610 24 1565 61.6 629 1,387 3 ssss
(GP) K80 0.75 0.98 762 30 1565 61.6 718 1,583 4 ssss
K80 0.95 1.24 914 36 1565 61.6 790 1,742 5 ssss
K80 1.17 1.53 1067 42 1565 61.6 852 1,878 5 nnsn
K80 1.39 1.82 1219 48 1565 61.6 926 2,041 6 **n*
K80 1.57 2.05 1372 54 1565 61.6 1000 2,205 6 jj*j
Heavy Duty (HD) K90 0.47 0.61 610 24 1578 62.1 650 1,433 3 ssss
K90 0.64 0.84 762 30 1578 62.1 743 1,638 4 ssss
K90 0.82 1.07 914 36 1578 62.1 813 1,792 5 ssss
K90 1.00 1.31 1067 42 1578 62.1 866 1,909 5 ssss
K90 1.19 1.56 1219 48 1578 62.1 956 2,108 6 n*sn
K90 1.38 1.80 1372 54 1578 62.1 1030 2,271 6 *jn*
Heavy Duty K90 0.54 0.70 610 24 1578 62.1 696 1,534 3 ssss
Rock (HDR) K90 0.77 1.00 762 30 1578 62.1 781 1,722 4 ssss
K90 0.84 1.10 914 36 1578 62.1 863 1,903 5 ssss
K90 1.07 1.40 1067 42 1578 62.1 933 2,057 5 snss
Heavy Duty K90 0.79 1.03 914 36 1458 57.4 811 1,788 5 ssss
Power (HDP) K90 0.96 1.26 1067 42 1458 57.4 875 1,929 5 ssss
K90 1.14 1.49 1219 48 1458 57.4 954 2,103 6 nnsn
Ditch Cleaning n/a 1.02 1.33 1524 60 1139 44.8 726 1,601 0 ssss
(DC) n/a 1.24 1.62 1830 72 1139 44.8 823 1,814 0 nnsn
R2.9B1 R2.5B1
Assumptions for maximum material density rating:
1. Front Linkage fully extended at ground line
2. Machine positioned 90 degrees over the side
3. Bucket curled
4. 100% Bucket Fill Factor
Please consult with your Caterpillar dealer personnel for optimum selection of buckets and work
tools that best match your application.
Based on SAE J296, some calculations of capacity specs fall on borderlines. Rounding may
*
allow two buckets to have the same English rating, but different metric ratings.
s 2100 kg/m3(3,500 lb/yd3) max material density
n 1800 kg/m3(3,000 lb/yd3) max material density
* 1500 kg/m3(2,500 lb/yd3) max material density
j 1200 kg/m3(2,000 lb/yd3) max material density
20
321D LCR Hydraulic Excavator specifications
321D LCR Work Tool Matching Guide
y
y
Boom Options Reach Boom
5.7 m (18'5")
Stick Options R2.9B1 R2.5B1
(9'7") (8'2")
Hydraulic Hammer H115s/ H115s/
H120Cs/ H120Cs/
H130s H130s
Vibratory Plate Compactor CVP110 CVP110
Multi-Processor MP15 MP15
360 Scrap Shear S320 S320
Trash Grapple 2.7 m3(3.5 yd3) 2.7 m3(3.5 yd3)
Contractor’s Grapple yes yes
Hydraulic Thumb yes yes
Dedicated Quick Coupler yes yes
Pin-Grabber Quick Coupler
es
es
21
321D LCR Hydraulic Excavator specifications
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
Reach Boom Lift Capacities
➤
➤
➤
➤
Load Point
Height
STICK – 2.9 m (9'7")
BUCKET – 0.82 m
3
1.5 m (5.0 ft)
(1.07 yd3)
Load Radius
Over Front
Load Radius
Over Side
UNDERCARRIAGE – Long
SHOES – 800 mm (32") triple grouser
3.0 m (10.0 ft) 4.5 m (15.0 ft) 6.0 m (20.0 ft) 7.5 m (25.0 ft)
Load at
Maximum Reach
BOOM – 5.7 m (18'9")
HEAVY LIFT – On
m
ft
9.0 m kg *2250 *2250 6.43
30.0 ft lb *5,050 *5,050 20.44
7.5 m kg *4350 *4350 *2000 *2000 7.94
25.0 ft lb *8,900 *8,900 *4,400 *4,400 25.74
6.0 m kg *5150 *5150 *5000 4800 *3750 3150 *1900 *1900 8.86
20.0 ft lb *11,150 *11,150 *10,950 10,300 *7,300 6,750 *4,150 *4,150 28.91
4.5 m kg *7750 *7750 *6550 *6550 *5700 4650 *5200 3100 *1900 *1900 9.39
15.0 ft lb *14,100 *14,100 *12,300 9,950 *11,000 6,600 *4,150 *4,150 30.74
3.0 m kg *13 650 *13 650 *8600 7050 *6650 4400 5200 3000 *2000 1900 9.61
10.0 ft lb *29,100 *29,100 *18,450 15,150 *14,350 9,450 11,100 6,400 *4,350 4,100 31.52
1.5 m kg *5350 *5350 *10 450 6500 7300 4150 5050 2850 *2150 1850 9.55
5.0 ft lb *12,750 *12,750 *22,500 13,950 15,650 8,900 10,850 6,150 *4,700 4,050 31.34
Ground kg *6950 *6950 *11 400 6150 7100 3950 4950 2800 *2450 1950 9.21
Line lb *15,900 *15,900 24,550 13,200 15,200 8,500 10,600 5,950 *5,300 4,300 30.20
–1.5 m kg *6400 *6400 *10 700 *10 700 11 350 6050 7000 3850 4900 2750 *2900 2250 8.54
–5.0 ft lb *14,300 *14,300 *24,250 *24,250 24,250 12,950 14,950 8,300 10,550 5,850 *6,350 4,900 27.97
–3.0 m kg *10 550 *10 550 *15 150 12 200 *10 550 6100 7000 3900 *3750 2850 7.45
–10.0 ft lb *23,700 *23,700 *32,750 26,100 *22,800 13,050 15,050 8,350 *8,300 6,350 24.31
–4.5 m kg *11 850 *11 850 *8400 6300 *3600 *3600 5.70
–15.0 ft lb *25,350 *25,350 *17,850 13,550 *8,750 *8,750 18.47
* Limited by hydraulic capacity rather than tipping load. The above loads are in compliance with SAE hydraulic excavator lift capacity rating standard J1097.
They do not exceed 87% of hydraulic lifting capacity or 75% of tipping capacity. Weight of all lifting accessories must be deducted from the above
lifting capacities.
Load Point
Height
Load Radius
Over Front
STICK – 2.9 m (9'7")
BUCKET – No Bucket, Bare Quick Coupler
1.5 m (5.0 ft)
3.0 m (10.0 ft) 4.5 m (15.0 ft) 6.0 m (20.0 ft) 7.5 m (25.0 ft)
Load Radius
Over Side
UNDERCARRIAGE – Long
SHOES – 800 mm (32") triple grouser
Load at Maximum
Reach – Coupler Curled
BOOM – 5.7 m (18'9")
HEAVY LIFT – On
m
ft
9.0 m kg *5050 *5050 *3750 *3750 6.43
30.0 ft lb *10,150 *10,150 *8,400 *8,400 20.44
7.5 m kg *4900 *4900 *3200 *3200 7.94
25.0 ft lb *10,150 *10,150 *7,050 *7,050 25.74
6.0 m kg *5500 *5500 *5400 5150 *3900 3500 *3000 *3000 8.86
20.0 ft lb *11,950 *11,950 *11,850 11,000 *7,150 *7,150 *6,550 *6,550 28.91
4.5 m kg *7850 *7850 *6900 *6900 *6050 4950 *5600 3450 *2950 *2950 9.39
15.0 ft lb *14,900 *14,900 *13,200 10,650 *11,700 7,350 *6,500 *6,500 30.74
3.0 m kg *14 050 *14 050 *8950 7350 *7050 4700 5500 3350 *3050 1900 9.61
10.0 ft lb *29,900 *29,900 *19,250 15,750 *15,200 10,150 11,850 7,150 *6,650 4,100 31.52
1.5 m kg *5850 *5850 *10 850 6800 7600 4500 5400 3200 *3250 1850 9.55
5.0 ft lb *13,850 *13,850 *23,350 14,650 16,350 9,600 11,550 6,900 *7,150 4,050 31.34
Ground kg *7400 *7400 11 800 6500 7400 4300 5300 3100 *3650 1950 9.21
Line lb *16,900 *16,900 25,300 13,950 15,900 9,250 11,350 6,700 *8,000 4,300 30.20
–1.5 m kg *6800 *6800 *11 150 *11 150 11 650 6400 7300 4200 5250 3050 *4300 2250 8.54
–5.0 ft lb *15,150 *15,150 *25,300 *25,300 25,000 13,750 15,700 9,050 11,250 6,600 *9,500 4,900 27.97
–3.0 m kg *11 000 *11 000 *15 600 12 600 *11 000 6450 7300 4250 *5600 2850 7.45
–10.0 ft lb *24,650 *24,650 *33,800 26,950 *23,700 13,800 15,750 9,100 *12,450 6,350 24.31
–4.5 m kg *12 300 *12 300 *8800 6600 *6200 *6200 5.70
–15.0 ft lb *26,250 *26,250 *18,750 14,250 *13,650 *13,650 18.47
* Limited by hydraulic capacity rather than tipping load. The above loads are in compliance with SAE hydraulic excavator lift capacity rating standard J1097.
They do not exceed 87% of hydraulic lifting capacity or 75% of tipping capacity. Weight of all lifting accessories must be deducted from the above
lifting capacities.
Always refer to the appropriate Operation and Maintenance Manual for specific product information.
22
321D LCR Hydraulic Excavator specifications
Reach Boom Lift Capacities
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
Load Point
Height
STICK – 2.5 m (8'3")
BUCKET – 0.82 m
3
1.5 m (5.0 ft)
(1.07 yd3)
Load Radius
Over Front
Load Radius
Over Side
UNDERCARRIAGE – Long
SHOES – 800 mm (32") triple grouser
3.0 m (10.0 ft) 4.5 m (15.0 ft) 6.0 m (20.0 ft) 7.5 m (25.0 ft)
Load at
Maximum Reach
BOOM – 5.7 m (18'9")
HEAVY LIFT – On
m
ft
9.0 m kg *2700 *2700 5.75
30.0 ft lb *6,100 *6,100 18.13
7.5 m kg *5100 *5100 *3800 *3800 *2350 *2350 7.44
25.0 ft lb *10,700 *10,700 *7,650 *7,650 *5,250 *5,250 24.08
6.0 m kg *5800 *5800 *5450 4750 *2250 *2250 8.42
20.0 ft lb *12,550 *12,550 *11,950 10,100 *4,950 *4,950 27.48
4.5 m kg *9750 *9750 *7200 *7200 *6100 4600 5250 3050 *2250 2200 8.98
15.0 ft lb *20,650 *20,650 *15,500 *15,500 *13,200 9,850 *10,550 6,500 *4,950 4,850 29.42
3.0 m kg *9200 6900 *7000 4350 5150 2950 *2350 2050 9.22
10.0 ft lb *19,750 14,850 *15,100 9,350 11,050 6,300 *5,200 4,450 30.23
1.5 m kg *10 850 6350 7250 4100 5050 2850 *2550 2000 9.16
5.0 ft lb *23,350 13,700 15,550 8,800 10,800 6,100 *5,600 4,400 30.05
Ground kg *6450 *6450 11 400 6100 7050 3950 4950 2800 *2900 2150 8.79
Line lb *14,800 *14,800 24,400 13,100 15,150 8,450 10,600 5,950 *6,350 4,650 28.85
–1.5 m kg *7050 *7050 *11 400 *11 400 *11 300 6050 7000 3900 4950 2750 *3450 2450 8.09
–5.0 ft lb *15,750 *15,750 *25,850 25,650 24,250 12,950 15,000 8,350 *7,600 5,450 26.48
–3.0 m kg *12 100 *12 100 *14 150 12 300 *10 100 6150 7050 3950 *4500 3300 6.91
–10.0 ft lb *27,100 *27,100 *30,600 26,300 *21,800 13,200 15,150 8,500 *9,850 7,300 22.53
–4.5 m kg *10 400 *10 400 *7400 6450 *5900 5100 5.24
–15.0 ft lb *22,100 *22,100 *15,550 13,850 *12,900 11,600 16.88
* Limited by hydraulic capacity rather than tipping load. The above loads are in compliance with SAE hydraulic excavator lift capacity rating standard J1097.
They do not exceed 87% of hydraulic lifting capacity or 75% of tipping capacity. Weight of all lifting accessories must be deducted from the above
lifting capacities.
Load Point
Height
Load Radius
Over Front
STICK – 2.5 m (8'3")
BUCKET – No Bucket, Bare Quick Coupler
1.5 m (5.0 ft)
3.0 m (10.0 ft) 4.5 m (15.0 ft) 6.0 m (20.0 ft) 7.5 m (25.0 ft)
Load Radius
Over Side
UNDERCARRIAGE – Long
SHOES – 800 mm (32") triple grouser
Load at Maximum
Reach – Coupler Curled
BOOM – 5.7 m (18'9")
HEAVY LIFT – On
m
ft
9.0 m kg *4600 *4600 4.37
30.0 ft lb *10,400 *10,400 13.51
7.5 m kg *5650 *5650 *4650 *4650 *3800 *3800 6.19
25.0 ft lb *12,500 *12,500 *8,450 *8,450 19.95
6.0 m kg *6150 *6150 *5850 5050 *3550 *3550 7.28
20.0 ft lb *13,350 *13,350 *12,850 10,850 *7,800 *7,800 23.70
4.5 m kg *10 050 *10 050 *7550 *7550 *6450 4900 5600 3400 *3500 3050 7.94
15.0 ft lb *21,350 *21,350 *16,300 *16,300 *14,050 10,550 *11,250 7,250 *7,700 6,800 25.97
3.0 m kg *9550 7200 *7400 4650 5500 3300 *3650 2800 8.28
10.0 ft lb *20,550 15,500 *15,950 10,050 11,750 7,050 *7,950 6,150 27.13
1.5 m kg *11 250 6700 7550 4450 5350 3200 *3900 2700 8.33
5.0 ft lb *24,250 14,450 16,250 9,550 11,500 6,850 *8,550 5,950 27.34
Ground kg *6850 *6850 11 750 6450 7400 4300 5300 3100 *4400 2800 8.11
Line lb *15,700 *15,700 25,150 13,900 15,850 9,200 11,350 6,700 *9,650 6,100 26.61
–1.5 m kg *7350 *7350 *11 850 *11 850 11 650 6400 7300 4200 5250 3100 5200 3050 7.59
–5.0 ft lb *16,450 *16,450 *26,850 26,650 25,000 13,750 15,700 9,050 11,400 6,700 24.86
–3.0 m kg *12 500 *12 500 *14 600 12 700 *10 550 6500 7350 4250 6300 3700 6.70
–10.0 ft lb *28,000 *28,000 *31,600 27,150 *22,700 13,900 15,850 9,200 13,950 8,200 21.85
–4.5 m kg *10 800 *10 800 *7800 6750 *6300 5400 5.24
–15.0 ft lb *23,000 *23,000 *16,400 14,500 *13,750 12,250 16.89
* Limited by hydraulic capacity rather than tipping load. The above loads are in compliance with SAE hydraulic excavator lift capacity rating standard J1097.
They do not exceed 87% of hydraulic lifting capacity or 75% of tipping capacity. Weight of all lifting accessories must be deducted from the above
lifting capacities.
Always refer to the appropriate Operation and Maintenance Manual for specific product information.
23
321D LCR Hydraulic Excavator specifications
Standard Equipment
Standard equipment may vary. Consult your Caterpillar®dealer for details.
Undercarriage
Grease lubricated track
Hydraulic track adjusters
Idler and center section track guards
Long undercarriage
Other Standard Equipment
Automatic swing parking brake
Auxiliary hydraulic valve
Capability of stackable valves (max of 3) for main valve
Capability of auxiliary circuit
Counterweight with lifting eyes
Door locks, cap locks and Caterpillar®one key security
system
Fine swing control
Fully pressurized hydraulic system
Heavy lift
Mirrors (frame-right, cab left)
S•O•SSMquick sampling valves for engine and hydraulic oil
Wave fin radiator
Wiring provision for Product Link
Electrical
50 Ampere alternator
Base machine light (frame)
Horn
Pre-start monitoring system – checks for low fluids
(engine oil, coolant, hydraulic oil) prior to starting
machine
Operator Environment (Mandatory Attachment)
Air conditioner, heater, defroster with automatic
climate control
AM/FM Radio with antenna and 2 speakers
Ashtray with 24 volt lighter
Beverage/cup holder
Bolt-on Falling object Guarding System (FOGS) capability
Cab Glass
Openable and retractable two-piece front windshield
Sky-light, pop-up, polycarbonate
Coat hook
Floor mat
Instrument panel and gauges
Joysticks, console mounted, pilot operated
Light, interior
Literature compartment
Monitor, full graphic color display
Neutral lever (lock out) for all controls
Polycarbonate side windows
Positive filtered ventilation
Pressurized cab
Seat, suspension, with high back and head rest
Seat belt, retractable – 76 mm (3 in)
Storage compartment suitable for lunch box cooler
Sun shade (for skylight)
Travel control pedals with removable hand levers
Windows, Polycarbonate (mandatory attachment)
Windshield wiper and washer (upper and lower)
Engine/Power Train
C6.4 with ACERT™ Technology
Air intake heater
Air-to-air aftercooler (ATAAC)
24 volt electric start
HEUI™ injectors
2300 m (7,500 ft) altitude capability without derate
Automatic engine speed control with one touch low idle
Cooling
Protection of 43° C (110° F) to –18° C (0° F) at 50%
concentration
Priming pump
Straight line travel
Two-speed auto-shift travel
Water separator in fuel line
Optional Equipment
Optional equipment may vary. Consult your Caterpillar dealer for details.
Undercarriage
Track shoes
600 mm (24 in) triple grouser
700 mm (28 in) triple grouser
800 mm (32 in) triple grouser
Heavy-duty rollers
Auxiliary Hydraulics
Hammer Circuit
For single function (1 way/2 pump) hydraulic tools
Hydraulic pin grabber quick coupler and controller
Lines for booms and sticks
Thumb Circuit
For double function (2 way/1 pump) hydraulic tools
Tool Control System
Capability of adding medium pressure
For single or double function, (1 or 2 way, 1 or 2 pump)
hydraulic tools
Hydraulic Pin Grabber Quick Coupler and controller
Joysticks with additional switches
Lines for booms and sticks
Medium pressure circuit (added to Tool Control only)
for tools requiring medium pressure
Program up to 10 tools in memory
Work Tools
Wide offering of buckets, tips and sidecutters
Front Linkage
Booms
Reach 5.68 m (18 ft 7 in)
Sticks
Reach 2.9 m (9 ft 7 in)
Reach 2.5 m (8 ft 2 in)
Bucket Linkage
B1 Family
Boom Lowering Control Device
Electrical
Light, Boom – Right side
Lights, Cab mounted (2)
Machine Security System (MSS)
Power supply (12V-5 AMP)
Product Link (PL121SR/PL321SR)
Travel Alarm (Mandatory attachment)
Guarding
Falling Object Guarding System (FOGS)
Front windshield guard
Full length, wire mesh
Heavy-duty bottom guards
Track guiding guards
Sprocket end, idler end guard
Two-piece full length (center guard removed)
Vandalism guards
Operator Environment
Hand control pattern changer (ISO-SAE)
Rear window, secondary exit
Seat, high back with air suspension and heater
Engine/Power Train
Starting, Cold weather package
Two additional maintenance free batteries
High capacity starter motor
Heavy-duty cable
Jump-start receptacle
Water level indicator (Fuel)
24
321D LCR Hydraulic Excavator specifications25321D LCR Hydraulic Excavator specifications
Notes
321D LCR Hydraulic Excavator specifications
26
Notes
321D LCR Hydraulic Excavator specifications
27
Notes
For more complete information on Cat products, dealer services,
and industry solutions, visit us on the web at www.cat.com
© 2008 Caterpillar
All Rights Reserved
Printed in U.S.A.
Materials and specifications are subject to change without notice.
Featured machines in photos may include additional equipment.
See your Caterpillar dealer for available options.
CAT, CATERPILLAR, SAFETY.CAT.COM, their respective logos, “Caterpillar Yellow”
and the POWER EDGE trade dress, as well as corporate and product identity used
herein, are trademarks of Caterpillar and may not be used without permission.
AEHQ5873-01 (4-08)
Replaces AEHQ5873
NACD
321D LCR Hydraulic Excavator
R
Loading...