Milton CAT 320D FM User Manual

®

®

Engine

Engine model Cat®C6.4 ACERT
Net Flywheel Power 117 kW 157 hp

Operating Weight (w/ front linkage, w/out bucket or grapple):

General Forestry (HW) 26 900 kg 59,315 lb
Log Loader (U/U) 30 300 kg 66,812 lb
Log Loader (HD/LC) 25 500 kg 56,228 lb

320D FM

Forest Machine

2

320D FM Forest Machines

The D Series incorporates innovations for improved performance, rugged durability
and maximum productivity.

Guarding

Factory forestry cab guarding, shoe
support guards and heavy-duty access
doors help extend component life,
reduces downtime and helps to protect
your forestry machine investment. pg. 8

Hydraulics

Forest Machine hydraulic systems
are designed to provide reliability,
outstanding controllability and proven
performance in various forestry
applications. pg. 5

Undercarriage

Heavy Duty link assemblies provide
toughness and durability. The FM track
will maximize undercarriage life and
minimize operating costs. pg. 9

Structures

Purpose-built carbody design uses
the most advanced manufacturing
processes, ensuring durability and
reliability in the most rugged forestry
applications. pg. 8

Power Train

The Cat®C6.4 with ACERT™
Technology gives the 320D FM
exceptional power and fuel efficiency
unmatched in the industry. The C6.4
meets U.S. EPA Tier 3 emissions
requirements. pg. 4

Operator Comfort

Spacious purpose built forestry cab with
excellent sightlines to the work area
with 8 lights and all scratch resistant
polycarbonate windows. Certified
FOPS to ISO 8084 and SAE 1084,
certified OPS to ISO 8083 and SAE
J231, certified FOGS to ISO 10262
and SAE J1356, certified TOPS to
OR-OSHA code 437-007-0775 TOPS
and WCBG602/G603/G604/G608
compliant. pg. 6

3

Serviceability

The new FM cooling package provides
easy access to all radiator cores for
faster cleanouts. Regularly scheduled
maintenance extends machine service
life and lowers overall operating costs.

pg. 11

Caterpillar Grapples

Cat Log Loading Grapples combined
with Cat Forest Machines make the
320D FM flexible, versatile and efficient
enough, allowing you to maximize
productivity on your forestry job. pg. 10

Versatility

Designed and purpose-built to meet
diverse forestry applications, the
320D FM can help improve productivity
in various forestry and millyard
applications. pg. 9

Owning and Operating Costs

Proven fuel efficiency combined with
easier access and extended service
intervals maximize uptime, reduce
operating costs and maximize
productivity. pg. 11

Customer Focus

Down time is minimized by the
utilization of a worldwide computer
network that can help find in-stock
parts and minimize your down time.
Your Cat dealer can also offer a wide
range of other services that can be set
up to meet your equipment needs.
The dealer will help choose the plan
that can cover everything from machine
and attachment selection to replacement.

pg. 12

Cat C6.4 ACERT. The Cat®C6.4 with

ACERT™ Technology gives the
320D FM exceptional power and fuel
efficiency unmatched in the industry.
The C6.4 meets U.S. EPA Tier 3
emissions requirements. The forestry
designed hydraulics give the 320D FM
exceptional power, efficiency and
controllability unequaled in the industry
for consistently high performance in
all forestry applications.

Performance. The 320D FM is equipped
with the C6.4 ACERT engine, which
provides 7% more horsepower as
compared to the Cat 3066 T engine.

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 ACERT
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.

Cooling System. The cooling fan
is directly driven from the engine.
An optional programmable reversible fan
allows for radiator blowout, to increase
service intervals and to maintain engine
operational temperatures. The optimum
fan speed is calculated based on the
target engine speed, coolant temperature,
hydraulic oil temperature and actual fan
speed. The Cat C6.4 ACERT delivered
a completely new layout that separates
the cooling system from the engine
compartment.

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.

Noise Reduction Technologies.

The engine mounts are rubber-isolating
mounts matched with the engine
package. Further noise reduction has
been achieved through design changes
to the isolated top cover, oil pan,
multiple injection strategy, insulated
timing cover, sculpted crankcase
and gear train refinements.

4

Power Train

The Cat®C6.4 has exceptional power and fuel efficiency unmatched in the industry
for consistently high performance in both forestry and millyard applications.

Component Layout. The 320D FM
hydraulic system and component
locations have been designed to provide
a high level of system efficiency.
The main pumps, control valves and
hydraulic tank are located close together
to allow for shorter tubes and lines
between components that reduce friction
loss and pressure drops in the lines.
The layout further provides greater
operator comfort by placing the radiator
on the cab side of the upper structure.
This allows incoming air to enter the
engine compartment from the operator
side and hot air and corresponding
engine sound to exit on the opposite
side away from the operator. This reduces
engine compartment heat and sound
being transmitted to the operator.

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
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.

Fine Swing Control. Standard fine swing
control cushions start and stop for better
implement control.

Controllability. The hydraulic system
offers precise control to the 320D FM
reducing operator fatigue, improving
operator effectiveness and efficiency,
which ultimately translates into
enhanced performance.

Auxiliary Hydraulic Valve. The auxiliary
valve is standard on the 320D FM.
Control Circuits are available as
attachments, allowing for operation
of high and medium pressure tools
such as grapples.

Hydraulic Cylinder Snubbers.

Snubbers are located at the rod-end
of the boom cylinders and both ends
of the stick cylinders to cushion shocks,
reduce sound and increase cylinder life,
increasing uptime and productivity.

5

Hydraulics

Cat®hydraulics provide the power and control needed for a variety of applications.

Operator Station. The workstation
is spacious, quiet and comfortable,
assuring high productivity during
a long work day. Controls, joysticks
and an ergonomically designed seat
reduces operator fatigue.

6

Operator Comfort

The purpose built forestry cab interior layout maximizes operator space, provides
exceptional comfort, provides excellent sightlines and reduces operator fatigue.

Monitor. The monitor is a full color
400 ⫻ 234 pixels Liquid Crystal Display
(LCD) graphic display. The monitor
angle can be adjusted to minimize sun
glare and has the capability of displaying
information in twenty-seven different
languages.

Pre-Start Check. Prior to starting the
machine, the system will check for low
fluid levels for the engine oil, hydraulic
oil and engine coolant and warn the
operator through the monitor in the
event display area.

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

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.

Seat. Seat provides 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.

Joystick Control. Joystick controls
have low lever effort and are designed
to match the operator’s natural wrist
and arm position. The operator can
operate joystick controls with an arm
on the armrest and the horizontal and
vertical strokes have been designed
to reduce operator fatigue. Exclusive
proportional control and push buttons
are programmable to operator personal
preferences, allowing maximum
productivity.

Hydraulic Activation Control Lever.

For added safety, this lever must
be in the operate position to activate
the machine control functions.

Console. Redesigned consoles feature
a simple, functional design to reduce
operator fatigue, ease of switch
operation and excellent visibility.

Skylight. An enlarged skylight with
sunshade provides excellent upwards
visibility.

Viewing. Cab design optimizes
post structures, and scratch-resistant
polycarbonate window placement to
provide excellent operator visibility
to front, sides and rear. Forestry cab
is designed with heavy-duty guarding,
meeting FOPS/OPS/FOGS/TOPS
and CB requirements.

7

Rugged main frame design maximizes
durability.

• Outer frame utilizes curved side
rails, which are di-formed for
excellent uniformity and strength.

• Box-section channels improve upper
frame rigidity under the cab.

• Inverted U-channels span the width
of the main frame and are formed,
rather than fabricated, for superior
strength and reduced weight.

• Boom tower and main rails are
constructed of solid, high-tensile
strength, steel plates.

• Boom foot and engine mount areas
are reinforced for additional strength.

• Sheet metal supporting structure is
improved by integrating the mounting
into the upper frame structure.

Carbody Design. Advanced, reinforced,
purpose-built carbody design stands up
in the toughest forest applications.

Carbody Structure. Wide, tall, and thick
carbody structure provides operating
stability and durability while improving
operation’s effectiveness.

• Upper structure weight and stresses
are distributed evenly across the full
length of the track roller frame.

• Smooth transitions and long welds
help reduce stresses at the carbody­to-roller frame junctions for
excellent durability.

• Robot welding helps ensure consistent,
high-quality welds throughout the
manufacturing process.

8

Purpose-built forest applications with reinforced carbody, rugged swing bearing, heavy
doors and extra guarding.

Structures

Caterpillar guarding protects your forestry machine investment.

Guarding

Shoe Support Guards. Standard full-

length track shoe support guards help
protect rollers and provide increased
rigidity to track links in rough
underfoot conditions.

Factory Forestry Cab. Caterpillar factory
forestry designed and built FOPS cab
has options for windshield guard and
window guards to meet local guarding
requirements. The right side and rear
windows are made from impact­resistant polycarbonate.

Heavy-Duty Access Doors.

Heavy-duty access doors are standard
on the 320D FM and are made from
6 mm (0.24 in), high-strength, low alloy
steel. Positive locking latch stays closed
in forestry applications. Hinges have
larger diameter pins over standard
doors. The smooth door profile
enhances machine appearance.

Heavy Duty Top Rollers. Track rollers
with dual supports replace carrier rollers
to assure superior endurance.

Heavy Duty Track Rollers. Heavy duty
track rollers stand up to the toughest
forest applications. Features include
greater sealability, higher resistance to
deformation and greater load carrying
capacity.

Heavy Duty Grease Lubricated Track.

The 325 HD Track Link with 8 inch
pitch and 8 bottom rollers is standard
on the 320D FM.

1) Grease Lubricated Track.

• Extends internal bushing wear life

• Reduces noise

• Provides more usable horsepower
because of decreased internal friction

• Reduces chance for frozen track
joints

2) 10% Larger Bushing Diameter.

• Extends external bushing wear life

3) Greased Pin and Larger Bushing
Combined.

• Extends system life

• Reduces sprocket wear because

the system stays matched longer

• Improves balance in component

wear life

4) 15% Increase in Link Height.

• Increases link wear life

5) 36% Wider Bushing Strap.

• Improves bushing-to-link retention

6) Unique Pin Retention System.

• Locks the pin to the link

9

Undercarriage

Durable undercarriage absorbs stresses and provides excellent stability.

Versatility

A wide selection of Forest Machine configurations meet diverse forestry applications and
improve your productivity.

The Caterpillar Log Loader is Purpose
Built. The Caterpillar log loader is

purpose built for forest applications.
Completely assembled, heel-type log
loaders (including grapple) are available
from the factory.

The Caterpillar Heel-Type Loader
Arrangements. The Caterpillar heeltype

loader arrangements fit a wide variety of
log handling and loading applications in
the woods and millyards. Heel booms are
especially well-suited for use with large
diameter sawlogs and tree length loads.

Caterpillar Roadbuilders. Caterpillar
Roadbuilders can be equipped with
buckets, thumbs, clamshells and clearing
grapples to fit a wide range of forest
road jobs.

Applications Include. Moving right­of-way logs, stumping, pioneering,
stripping organic material, excavating
shot rock, truck loading, back sloping,
ditching, finish grading and slash piling.

The Caterpillar 320D FM Delimber
Carrier. The Caterpillar delimber carrier

can be fit with a variety of AEM
delimbers.

Cat 360 Degree Continuous Rotating
Log Loading Grapples for Forestry
Machines are high capacity tools, built
for endurance in high-volume logging
applications. GLL grapple legs are made
of high-strength alloy steel with unique
leg profiles for maximum performance
in picking/sorting, bunching/loading or
shoveling applications. Large bunches
of stems or single large logs are easily
handled by the wide grapple opening
(60"/1524 mm), while interlocking legs
close down to 5"/127 mm for picking
and sorting. Cat grapples have bolt-on
access panels allowing for easy
serviceability and are backed by the
world-class Caterpillar Dealer Network.

360-Degree Continuous Rotation.

High torque hydraulic motor positions
the grapple precisely for rapid sorting
and loading.

Hydraulic Cylinders. Heavy-duty wall
construction delivers durability and
maximum closing power move the
maximum amount of wood per pass.

Legs. Built with high-strength alloy steel
for maximum durability. Optimized
profile performs equally well whether
sorting, bunching or shoveling.

Pins. Induction-hardened alloy pins
float, decreasing wear.

Serviceability. Bolt-on access panels
protect the grapples internal components,
while providing easy access. Long service
intervals and infield servicing result in
more uptime and lower operating costs.

10

Caterpillar Grapples

Caterpillar Forest Machines combined with Cat Log Loading Grapples mean optimal
performance, reliability and on-the-job productivity.

GLL Specifications/Dimensions

GLL52B GLL55B GLL60B

Weight (kg/lb) 1255/2,767 1291/2,840 1344/2,965

Width (mm/in) 1725/68 1765/70 1935/76
A Height, open (mm/in) 2134/84 2184/86 2261/89
B Height, closed (mm/in) 2159/85 2210/87 2286/90
C Maximum Opening (mm/in) 1321/52 1397/55 1524/60
D Minimum Opening (mm/in) 127/5 127/5 127/5

Rotation, continuous 360° 360° 360°

Rotation torque

at 1,200 psi (N·m/ft lb) 1153/850 1153/850 1153/850

Matching Guide

GLL52B GLL55B GLL60B

320 FM

324 FM

325 FM

330 FM

Provides optimum machine match.
Provides acceptable machine match.

Ground Level Service. The design
and layout of the 320D FM 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 Compartment. The air filter
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. Pump Compartment. A service
door on the right side of the upper
structure allows ground-level access
to the pump and pilot filter.

Radiator Compartment. The left rear
service door allows easy access to the
engine radiator, oil cooler and air-to air­aftercooler. A reserve tank and drain
cock are attached to the radiator for
simplified maintenance.

Grease Lubricated Track. Grease
lubricated seals protect the track link and
deliver long track pin and bushing inner
wear life. Capsule Filter. The hydraulic
return filter, a capsule filter, is situated
outside the hydraulic tank. This filter
prevents contaminants from entering the
system when hydraulic oil is changed
and keeps the operation clean.

Fan Guard. Engine radiator fan is
completely enclosed by fine wire mesh,
reducing the risk of an accident.

Anti-Skid Plate. Anti-skid plate covers
top of storage box and upper structure
to prevent slipping during maintenance.

Diagnostics and Monitoring.

The 320D FM 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. 320D FM
service and maintenance intervals have
been extended to reduce machine service
time and increase machine availability.

11

Owning and Operating Costs

Caterpillar Forest Machines provide the best value for your forestry and millyard applications.

Serviceability

Simplified service and maintenance features save you time and money.

ACERT™ Technology Fuel Economy. Based on Caterpillar
testing, the fuel economy of Cat engines with ACERT
technology is 3 to 5 percent better than current competing
technologies. This fuel economy is directly related to the
complete combustion of fuel due to the integration between
the electronic control that monitors conditions, the air
management system that controls air volume and the fuel
injection system that delivers just the right amount of fuel
as needed.

Radiator Compartment. The radial air filter has a double
layered filter core for more efficient filtration and is located
in a compartment behind the cab. Easy access doors allows
for easy, faster cleanout minimizing down time. Heavy-duty
screen filters assembled on the door keep debris away from
the radiator compartment, extending service intervals.

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™.

12

Customer Focus

Caterpillar dealer services help you operate longer with lower costs.

13

320D FM Specifications

Hydraulic System

Main Implement System – 205 L/min 54.2 gal/min
Maximum Flow (2x)

Max. pressure – Implements 35 000 kPa 5,075 psi
Max. pressure – Travel 35 000 kPa 5,075 psi
Max. pressure – Swing 25 000 kPa 3,625 psi
Pilot System – Maximum flow 41 L/min 10.8 gal/min
Pilot System – Maximum pressure 4,120 kPa 600 psi
Boom Cylinder – Bore 120 mm 4.7 in
Boom Cylinder – Stroke 1260 mm 49.6 in
Stick Cylinder – Bore 140 mm 5.5 in
Stick Cylinder – Stroke 1500 mm 59.3 in

Excavator Linkage

Boom Cylinder – Bore 120 mm 4.7 in
Boom Cylinder – Stroke 1260 mm 49.6 in
Stick Cylinder – Bore 140 mm 5.5 in
Stick Cylinder – Stroke 1500 mm 59.05 in
B1 Family Bucket Cylinder – Bore 120 mm 4.7 in
B1 Family Bucket Cylinder – Stroke 1100 mm 43.3 in

Log Loader Linkage

Boom Cylinder – Bore 140 mm 5.5 in
Boom Cylinder – Stroke 1160 mm 45.7 in
Stick Cylinder – Bore 150 mm 5.9 in
Stick Cylinder – Stroke 1470 mm 57.9 in
Under/Under Heel Cylinder – Bore 130 mm 5.1 in
Under/Under Heel Cylinder – Stroke 1156 mm 45.5 in

Drive

Maximum Travel Speed (HD/LC) 5.3 km/h 3.3 mph
Maximum Drawbar Pull (HD/LC) 188 kN 46,300 lb
Maximum Travel Speed (HW) 4.3 km/h 2.6 mph
Maximum Drawbar Pull (HW) 248 kN 55,700 lb

Swing Mechanism

Swing Torque 61.8 kN·m 45,611 lb ft
Swing Speed 11.5 rpm 11.5 rpm

Engine

Engine Model Cat

®

C6.4 ACERT™
Net Flywheel Power 117 kW 157 hp
ISO 9249 110 kW 147 hp
J1349 110 kW 147 hp
EEC 80/1269 110 kW 147 hp
Bore 102 mm 4.02 in
Stroke 130 mm 5.12 in
Displacement 6.4 L 390 in

3

• The 320D FM meets U.S. EPA Tier 3 and EU Stage IIIa

emissions requirements.

• Net power advertised is the power available at the flywheel

when the engine is equipped with fan, air cleaner, muffler,
and alternator.

• No engine derating required below 2300 m (7,500 ft) altitude.

Weights

General Forestry (HD/LC) 25 500 kg 56,228 lb
General Forestry (HW) 26 900 kg 59,315 lb
Log Loader (U/U) 30 300 kg 66,812 lb

• Operating weight with front linkage, with 18 inch riser

and without bucket.

• Operating weight with front linkage, with 48 inch riser

and without grapple.

Service Refill Capacities

Fuel Tank 410 L 108.3 gal
Fuel Tank – Optional Auxiliary 410 L 108.3 gal

Right Front
Maximum Fuel with all 820 L 216.6 gal

Optional Tanks
Cooling System 25 L 6.6 gal
Engine Oil 30 L 7.9 gal
Swing Drive 8 L 2.1 gal
Hydraulic System (including tank) 260 L 68.7 gal
Hydraulic Tank 125 L 33.0 gal
Final Drive (each) – (HD/LC) 10 L 2.6 gal
Final Drive (each) – (HW) 13 L 3.4 gal

Standards

Brakes SAE J1026 APR90
Cab/FOGS/OPS/TOPS/FOPS SAE J1356 FEB88 ISO 10262/

SAE J1084/ISO 8084/

OR-OSHA 437-007-0775/

WCB G602, G603, G604,

G608

14

320D FM Specifications

2

6
7

9

8

10

4

5

3

1

*HD/LC = Heavy Duty/Long Undercarriage
**HW = High Wide Undercarriage

320D FM General Forestry HD/LC*
1 Shipping height. (All risers with cab tilted) 3000 mm (9'10")
2 Boom height 3040 mm (10'0")

3 Overall height 3713 mm (12'2")

4 Shipping length 9460 mm (31'0")
5 Tail swing radius 2774 mm (9'1")
6 Length to centers of rollers 3650 mm (12'0")
7 Track length 4480 mm (14'8")
8 Ground clearance 475 mm (1'7")
9 Track gauge 2380 mm (7'10")
10 Transport width with 700 mm (27.5") shoes (DG) 3080 mm (10'1")

HW**

3185 mm (10'5")

3060 mm (10'0")
4657 mm (15'3")
9410 mm (30'10")

2774 mm (9'1")

3715 mm (12'2")

4555 mm (14'11")

650 mm (2'2")

2590 mm (8'6")

3290 mm (10'10")

320D FM Log Loaders Under/Under
1 Shipping height. (All risers with cab tilted) 3185 mm (10'5")
2 Boom height

2980 mm (9'9")

3 Overall height 4657 mm (15'3")

4 Shipping length 13 620 mm (44'8")
5 Tail swing radius 2774 mm (9'1")
6 Length to centers of rollers 3715 mm (12'2")
7 Track length 4555 mm (14'11")
8 Ground clearance 650 mm (2'2")
9 Track gauge 2590 mm (8'6")
10 Transport width with 700 mm (27.5") shoes (DG) 3290 mm (10'10")

Dimensions

All dimensions are approximate.

2

6
7

4

15

320D FM Specifications

320D FM Working Ranges

General Forestry (HD/LC and HW), Heel Boom (Under/Under) reach ranges.

General Forestry

HW 5.9 m (19'4") Boom

with R2.9B1 (9'6") Stick

General Forestry

HD/LC 5.9 m (19'4") Boom

with R2.9B1 (9'6") Stick

Heel Boom

(Under/Under)

MAXIMUM

LEVEL

LOG HEIGHT

1

2

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4

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6

0

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Meters

Feet

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20

15

10

5

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15

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25

30

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40

45

10

1112 10 9

87654

3 21 -

Meters
Feet

3051042025 5-50153 0

0

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20

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0

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Feet Meters

012345678910 1-11

05101520253035

Meters

Feet

012345678910 1-11

05101520253035

Meters

Feet

0

1

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Feet Meters

16

320D FM Specifications

320D FM General Forestry – Reach Boom Lift Capacities

BOOM

– 5.9 m (19'4")

STICK

– R2.9B1 (9'6")

SHOES

– 700 mm (28") Double Grouser

UNDERCARRIAGE

– HD/LC

* Limited by hydraulic capacity rather than tipping load. The above loads are in compliance with hydraulic excavator lift capacity standard ISO 10567.

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.

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 Maximum Reach

Lift
Point Over Over Over Over Over Over Over Over Over Over Over Over m
Height Front Side Front Side Front Side Front Side Front Side Front Side ft

7.5 m kg 61.60093*0093*0544*0544*

25 ft lb *8,700 *8,700 19.82

6.0 m kg 92.70563*0563*0094*0094*

20 ft lb 37.32000,8*000,8*007,01*007,01*

4.5 m kg *5350 *5350 *5050 4200 *3550 *3550 7.99

15 ft lb *11,650 *11,650 *11,050 8,950 *7,800 *7,800 26.12

53.805430563*

05040535*05650516*0087*0087*gkm 0.3

93.72006,7000,8*057,8056,11*001,21003,31*008,61*008,61*bltf 01

44.8

00330583*05930575*05350596*05970549*gkm 5.1

07.72003,7054,8*054,8005,21*055,11050,51*051,71053,02*bltf

5

52.800430524*05830506*05150557*0567053 01*0526*0526*gkdnuorG

Line

80.72004,7004,9*052,8001,31*001,11003,

61*054,61053,22*053,41*053,41*bl

–1.5 m kg *6700 *6700 *10 800 *10 800 *10 400 7550 *7700 5100 *6000 3800 *5000 3650 7.77

–5 ft lb *14,900 *14,900 *24,500 *24,500 *22,550 16,250 *16,650 10,950 *12,950 8,200 *11,050 8,000 25.47

49.605240595*00150527*00670579*008 31*008 31*054 11*054 11*gkm 0.3–

46.22054,9050,31*000,11055,51*004,61050,12*058,92*058,92*056,52*056,52*bltf 01–

85.505850595*05870097*

059 01*059 01*gkm 5.4–

40.81001,31*001,31*057,61*057,61*004,32*004,32*bltf 51–

320D FM General Forestry – High Wide Lift Capacities

BOOM

– 5.9 m (19'4")

STICK

– R2.9B1 (9'6")

SHOES

– 700 mm (28") Double Grouser

UNDERCARRIAGE

– High Wide

* Limited by hydraulic capacity rather than tipping load. The above loads are in compliance with hydraulic excavator lift capacity standard ISO 10567.

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.

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 Maximum Reach

Lift
Point Over Over Over Over Over Over Over Over Over Over Over Over m
Height Front Side Front Side Front Side Front Side Front Side Front Side ft

7.5 m kg 33.60583*0583*0594*0594*

25 ft lb 04.02055,8*055,8*057,9*057,9*

6.0 m kg 04.70063*0063*0094*0094*

20 ft lb 90.42059,7*059,7*057

,01*057,01*

4.5 m kg *5450 *5450 *5050 4850 *3550 *3550 8.05

15 ft lb *11,850 *11,850 *11,100 10,350 *7,800 *7,800 26.33

83.80563*0563*00740045*0526*0526*0508*0508*gkm 0.3

74.72000,8*000,8*001,01057,11*005,31

*005,31*003,71*003,71*bltf 01

34.800930093*05540085*00260507*05390069*gkm 5.1

76.72055,8055,8*058,9006,

21*004,31052,51*001,02007,02*bltf 5

12.805930534*05440506*05060067*0509004 01*0576*0576*gkdnuorG

Line

49.62

007,8055,9*056,9051,31*000,31004,61*054,91054,22*054,51*054,51*bl

–1.5 m kg *7250 *7250 *11 450 *11 450 *10 400 8950 *7700 5950 *5950 4450 *5150 4300 7.69

–5 ft lb *16,200 *16,200 *25,950 *25,950 *22,450 19,250 *16,600 12,850 *12,800 9,600 *11,350 9,500 25.20

08.605150595*00060017*05090069*005

31*005 31*001 21*001 21*gkm 0.3–

02.22053,11001,31*059,21052,51*054,91007,02*052,92*052,92*001,72*001

,72*bltf 01–

63.50595*0595*0057*0057*054 01*054 01*gkm 5.4–

92.71050,31*050,31*009,51*009,51*003,22*003

,22*bltf 51–

17

320D FM Specifications

320D FM LL – Heel Boom Under/Under Lift Capacities

BOOM

– 5.94 m (19'6") – Under/Under Log Loader

STICK

– 3.51 m (11'6") – Under/Under Log Loader

SHOES

– 700 mm (28") Double Grouser

* Limited by hydraulic capacity rather than tipping load. The above loads are in compliance with hydraulic excavator lift capacity standard ISO 10567.

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.

4.5 m/15.0 ft 6.0 m/20.0 ft 7.5 m/25.0 ft 9.0 m/30.0 ft 10.5 m/35.0 ft Maximum Reach

Lift
Point Over Over Over Over Over Over Over Over Over Over Over Over m
Height Front Side Front Side Front Side Front Side Front Side Front Side ft

12.0 m kg *8920 *8950 4.20

40 ft lb *22,150 *22,150 12.09

0516*0516*gkm 5.01 *5650 *5650 6.60

050,71*050,71*bltf 53 *12,900 *12,900 21.57

0548*0548*gkm 0.9 73.80564*0564*00950057*

40.72055,01*055,

01*006,21056,51*055,81*055,81*bltf 03

44.900040014*0044053600060067*0038*0038*gkm 5.7

57.03058,8001,9*0

53,9054,21058,21006,61*002,81*002,81*bltf 52

91.0105530083*0544053605950077*00580568*gkm 0.6

92.33008,7

054,8*005,9056,31008,21008,61*002,81008,81*bltf 02

4.5 m kg *7200 *7200 *9350 8250 *8050 5850 6300 4400 4950 3400 *3700 3300 10.67

15 ft lb *16,100 *16,100 *20,250 17,800 *17,450 12,600 13,550 9,400 10,550 7,250 *8,100 7,250 34.94

29.0105130063*0043009400340526007505280597002 01*

gkm 0.3

18.53059,6059,7*052,7055,01052,9004,31052,21007,71051,71001,22*bltf 01

69.0105130563*0533009405

240516005505080567009 01*gkm 5.1

69.53009,6050,8*002,7005,01050,9002,31058,11003,71004,61055,22*bltf 5

Ground kg *14 550 11 150 11 000 7350 7900 5350 6050 4150 *4800 3350 *3750 3200 10.97

Line

lb *32,650 23,950 23,650 15,800 16,950 11,550 13,000 8,900 *9,650 7,150 *8,300 7,050 35.40

52.0105430573*00140006*052500870027053 01*008 01*008 01*gkm 5.1–

75.33006,7003,8*056,8007,21*053,11

057,61054,51004,22*053,32006,52*bltf 5–

09.800240544*05250056*05170078*008 01053 11*gkm 0.3–

99.82003,9

009,9*003,11058,31*053,51006,81*052,32004,42*bltf 01–

Forestry Grapples

55 LLG25 LLGnoitacificepS

4351-1723351-172# traP

For use with 320D FM, 324D FM 320D FM, 324D FM, 325D FM

suounitnoCsuounitnoCnoitatoR

N· 3511euqrot noit

atoR m (850 ft-lb) 1153 N·m (850 ft-lb)

)"55( mm 7931)"25( mm 1231gninepO .xaM

)"5( mm 621)"5( mm 621gninepO .niM

)bl 048,2( gk 1921)bl 767

,2( gk 5521thgieW

)"5.62( mm 376)"5.62( mm 376htdiW

)"68( mm 4812)"48( mm 4312nepo ,thgieH

18

320D FM Specifications

Standard Equipment

Standard equipment may vary. Consult your Caterpillar dealer for details.

Undercarriage

Hydraulic track adjusters
Track type undercarriage with grease lubricated seals
Idler and full-length track shoe support
700 mm (28") Double grouser shoes with trap holes

Other Standard Equipment

Heavy-duty upper frame with catwalks, bottom guard,

heavy-duty side doors

Core hydraulic lines and controls with standard main

valves on upper structures

Door locks, cap locks and Caterpillar one key

security system
Automatic swing parking brake
Travel alarm
Counterweight with lifting eye
Right front corner guard

320D FM General Forestry Arrangement also includes:

Forestry cab, hydraulic tilt 457 mm (18") riser
High-wide undercarriage or heavy-duty long undercarriage
Heavy-Duty recoil springs
Heavy-Duty track roller frame
Heavy-Duty travel motor covers
Straight travel third pedal
Heavy-Duty swivel guard
Forestry Heavy-Duty upper frame with catwalk
Heavy-Duty bottom guard
Heavy-Duty side doors
Right front corner guard
Travel alarm

320D FM Log Loader Arrangement also includes:

Forestry cab
Hydraulic tilt 1219 mm (48") riser
High-wide undercarriage
Heavy-Duty recoil springs
Heavy-Duty track roller frame
Heavy-Duty travel motor covers
Straight travel third pedal
Grapple/rotator hydraulic arrangement
Heavy-Duty swivel guard
Forestry Heavy-Duty upper frame with catwalk
Heavy-Duty bottom guard
Heavy-Duty side doors
Right front corner guard
Travel alarm

Electrical

80 Ampere alternator
4 Front working lights, cab top mounted
2 Front working lights, riser mounted
1 Left side working light, cab mounted
1 Rear working light, cab mounted
Horn

Operator Environment

Purpose built forestry cab with 8 lights and all scratch

resistant polycarbonate windows

Seat, four-way adjustable suspension seat with adjustable

armrest, retractable seatbelt, headrest and lumbar support
Integrated seat, console and joystick type controls
Language display monitor with gauges
Warning information

• Filter/fluid change information

• working hour information

• machine condition

• error code and tool mode setting information

• start up level check for hydraulic oil, engine oil
and engine coolant

Full time clock on monitor (2 weeks)
Seat mounted joystick with extra functions for grapple
Fixed polycarbonate skylight with retractable sun shade
Interior lighting
Lower and upper windshield wipers and washer
Positive filtered ventilation, pressurized cab with bi-level

air conditioner, heater and defroster with manual control
Forced air fan
2 post mounted fresh air vents
Behind seat storage tray with tie down points
2 CB radio mounts
1 Fire extinguisher mount
1 Attachment computer control mount
Secondary roof exit openable from inside and outside
2 Coat hooks
Ashtray with lighter
Literature holder
Cup holder
Neutral lever for all controls
Travel control pedals with removable hand levers
Washable floor mat
Radio/CD player (12V)
1 Converter/2 sockets – 12V-10A power supply

Power Train

Cat C6.4 with ACERT™ Technology U.S. EPA Tier 3

emissions compliant with 24-volt electric starting and

air intake heater
Automatic engine speed control with one touch low idle
Easy clean swing-out condenser
Easy clean swing out radiator
Muffler
Two speed auto-shift travel
Water separator in fuel line

19

320D FM Specifications

Optional Equipment

Optional equipment may vary. Consult your Caterpillar dealer for details.

Hydraulic Arrangements: Log Loader

Ground saw slasher

Log Loader Linkage

Stick cylinder guard

Maintenance service lights for pump and

battery compartment
Pre filter
Right front corner fuel tank [additional 409 L (108 gal)]
Rubber guard for boom foot
Track:

600 mm (24") double grouser shoes with trap holes

700 mm (28") Heavy-Duty triple grouser shoes

with trap holes

700 mm (28") double grouser shoes
Vacuum pump

5.7 m (18'8") Reach Boom for General Forestry

2.9 m (9'6") B1 Stick for General Forestry
Air suspension seat
Auto-reverse fan
Auxiliary Lines For:

Reach front
Auxiliary Pump Driver
Boom lowering device
B1 Family bucket linkage
Cold Weather Starting Aid
Electric re-fueling pump
Extended life coolant with 50% concentration for protection

of –34° C (–30° F)
GLL family grapples
Heavy Counterweight for General Forestry

Standard on Log Loader
Hydraulic Arrangements: General Forestry

Rotating grapple

Harvesting head

Thumb

R

For more complete information on Cat products, dealer services,

and industry solutions, visit us on the web at: www.cat.com/forestry

© 2008 Caterpillar

All Rights Reserved

Printed in the USA

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, ACERT, 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.

AEHQ5914 (6-08)

320D FM