Page 1
RM-300
Rotary Mixer
Cat®C11 Engine with ACERT®Technology
Gross Power (SAE J1995) 261 kW 350 hp
Rotor Width 2438 mm 96"
Rotor Depth (maximum) 508 mm 20"
Operating Weight (with ROPS and cab)
with universal rotor 24 454 kg 53,911 lb
with soil r
otor 23 919 kg 52,736 lb
Page 2
Productivity, Serviceability and Comfort in a Durable Package
The new RM-300 offers enhanced production capabilities, optimized performance,
simplified service and exceptional operator comfort.
C11 Engine with ACERT®Technology
ACERT®Technology works at the point
of combustion to optimize engine
performance and provide low exhaust
emissions. The C11 engine with
ACERT®Technology provides clean
burning power. Electronically
controlled on-demand variable speed
cooling fan provides the lowest overall
noise levels and high ambient operation
capability.
Page 4
Operator’s Station
Ergonomic design emphasizes comfort, visibility and easy operation. Isolated
operator’s station with heavy-duty rubber mounts reduce machine vibration
transmitted to the operator
to-side to an infinite number of positions. A switch on the side console allows the
operator to select any desired position for good visibility and comfort leading to
increased productivity.
The fully adjustable steering column and rotating seat are positioned to provide an
optimal operating position. Machine controls are grouped and conveniently located
to enhance operator productivity and reduce fatigue.
Page 5
. The optional hydraulically-assisted platform slides side-
Performance and reliability you expect.
The RM-300 combines superior performance and reliability to achieve the
most demanding job specifications while maximizing machine uptime.
With many enhanced features and options, the RM-300 is designed to work
well in both full depth reclamation and soil stabilization applications.
2
Page 3
Cab
The optional cab increases machine
utilization, provides greater year-round
comfort and of
sound levels. The pressurized cab slides
side-to-side and includes a rotating
cloth seat, left and right side doors,
tinted windows, front and rear
windshield wipers, heater/defroster and
air conditioning. Sound absorbing floor
mat reduces sound and machine
vibration transmitted to the operator.
Page 6
fers reduced interior
Rotor Drive
A direct-drive mechanical transmission
drives the rotor and provides three rotor
speeds for maximum performance in a
variety of materials and cutting depths.
Heavy-duty shear disc or optional
torque limiter protects rotor drive
components from torsional stress and
shock loads.
Page 8
Rear Wheel Drive
The optional rear wheel drive propel
system features a dedicated propel
pump to provide separate balanced
hydraulic flow to both the rear drive
motors. This system enables the
operator to achieve superior tractive
effort for soil stabilization applications
that require maximum cutting depth and
that are also high in moisture content.
Page 8
Mixing Chamber
Mixing chamber allows the rotor to
move independently so that the capacity
of the chamber actually increases in
deeper cuts to allow better material
mixing and excellent gradation.
Machine weight is well distributed to
provide stability in the cut for uniform
depth control.
Page 9
Rotor Options
With a choice of two rotor options, the
RM-300 can be configured for different
applications and depth specifications.
The universal rotor is intended
primarily to pulverize asphalt layers.
The soil rotor is intended primarily for
soil stabilization.
Page 10
viceability
Ser
The rotor hood tilts forward to allow
access to the rotor and cutting tools.
Ground level side access doors on the
rotor hood provide convenient access
for easy cutting tool removal and
replacement. Hinged side access doors
open wide for exceptional access to the
engine and cooling system. Daily
service points are accessible from
ground level and are grouped on one
side of the engine. Hinged service doors
open wide for access to power train and
rotor drive components.
Page 11
3
Page 4
C11 Engine with ACERT®Technology
A combination of innovations working at the point of combustion, ACERT®Technology
optimizes engine performance while meeting U.S. EPA Tier 3 and European EU Stage IIIa
emission regulations for off-road applications.
Turbocharged and Air-to-Air
Aftercooling (ATAAC)
ged air-to-air aftercooling
onic Control Module
A4 electronic control
Cat®C11 Engine with ACERT®Technology
The C11 engine provides a full-rated
gross power (SAE J1995) of 261 kW
(350 hp) at 1800 rpm with a torque of
1384 Nm (1024 lb/ft). The combination
of large displacement and high torque
allow the RM-300 to propel through the
toughest materials.
Mechanically-Actuated Electronically
Controlled Unit Injection (MEUI)
The MEUI fuel system is a unique
system that combines the technical
advancement of an electronic control
system with the simplicity of direct
mechanically controlled unit fuel
injection. The MEUI system excels in
its ability to control injection pressure
over the entire engine operating speed
range. These features allow the C11 to
have complete control over injection
timing, duration and pressure.
Multiple Injection Fuel Delivery
Multiple injection fuel delivery involves
a high degree of precision. Precisely
shaping the combustion cycle lowers
combustion chamber temperatures,
which generates fewer emissions,
optimizes fuel combustion; translating
into more work output for your fuel
cost.
C11 Cylinder Block
The cylinder block is a one-piece, grey
iron block that features generous ribbing
for stiffness and heavy bearing
bulkheads for rigidity and strength as
the crankshaft turns. This new design
supports the engine’s higher
compression ratios and increases its
power density. The incorporation of
straight-thread, o-ring connection points
reduces the loss of engine oil and fluids.
High Cylinder Pressures
High cylinder pressures combined with
tightly controlled tolerances promote
extremely efficient fuel burn, less blow
by and lower emissions.
Single Overhead Cam
One single overhead cam is driven by a
gear on the flywheel end of the engine.
Placing the cam gear at the flywheel end
significantly reduces noise and
vibration. To reduce wear, a pendulum
absorber is mounted at the front of the
camshaft. Together these two features
contribute to the long-life and durability
of this engine.
Service, Maintenance and Repair
Easier service, maintenance and repair is
accomplished by monitoring key
functions and logging critical indicators.
Advanced electronic diagnostic
capabilities are possible using Cat
Electronic Technician.
The turbochar
system provides high horsepower with
increased response time while keeping
exhaust temperatures low for long
hours of continuous operation.
Air-to-Air Aftercooling
Air-to-air aftercooling keeps air intake
temperatures down and in concert with
the tight tolerance combustion chamber
components, maximizes fuel efficiency
and minimizes emissions. New
turbocharger, unique cross-flow head,
single, rear driven, overhead cam and a
more efficient intake manifold generate
significant improvements in air flow.
This generates significant
improvements in efficiency and reduced
emissions.
ADEM™ A4 Electr
ADEM
The
module manages fuel delivery, valve
timing and airflow to get the most
performance per gallon (liter) of fuel
used. The control module provides
flexible fuel mapping, allowing the
engine to respond quickly to varying
application needs. It keeps track of
engine and machine conditions while
keeping the engine operating at peak
efficiency.
4
Page 5
Operator’s Station
Ergonomic design emphasizes operator comfort, visibility and easy operation. The optional
sliding platform slides side-to-side to reduce operator fatigue for increased productivity.
Hydraulically-assisted sliding platform
allows the operator to position the
platform to any desired position to
provide good visibility to both sides of
the machine. Platform can be accessed
from either side of the machine.
Comfortable and durable seat has
adjustable fore/aft position, bottom
cushion height, suspension stiffness and
flip-up arm rests. Seat and side control
console rotates to seven positions to
enhance operator comfort.
Controls are conveniently located for
easy one-handed control while seated.
Propel lever with center detent allows
forward/reverse operation and variable
The side console features a padded arm
rest, the four mode steering switch,
speed control dial, propel lever, rotor
elevation, front and rear rotor hood
door switches, rear steering switch and
sliding operator’s station switch.
machine speed.
Adjustable steering column offers
telescoping and tilt features to provide a
comfortable operating position for the
operator.
Operational Controls
All machine controls, switches and gauges are positioned to minimize operator fatigue and
maximize productivity.
Clear instrumentation includes gauges
2 3
1
1 Electronic Monitoring System
2 Ground Speed Indicator
3 Engine Tachometer
4 Park Brake Switch
5 Propel Speed Selector Switch
6
Load Control Selection Switch
7 Rotor On/Off Switch
8 Engine Speed Switch
4
5
6
7
8
for engine oil pressure, engine coolant
temperature, hydraulic oil temperature,
ging system voltage and fuel level.
char
ge analog gauges display
Lar
ground speed, engine rpm, engine hour
meter and fault codes.
Electronic Monitoring System
constantly monitors input signals from
sensors and switches in various
machine systems and alerts the operator
if a problem does occur.
Load contr
control propel speed manually or
automatically by the ECM.
Standard rear wheel steering control
allows operator to position rear wheels
for maneuvering in tight quarters.
Automatic four mode steering including
a crab and coordinated position is
optional.
ol selection switch
propel
to
5
Page 6
Sliding Cab
Optional cab can increase machine utilization and provides greater year-round comfort in
extreme environment conditions. The cab is fully pressurized and includes air conditioning.
Iso-mounted cab is pressurized to keep
noise, dust and the elements out and
comfort in.
Items included with cab are:rotating
cloth seat, left and right side lockable
doors, tinted glass, air conditioning,
heater/defroster, dual front and rear
windshield wipers and sound absorbing
floor mat.
Additional operator comforts include
two cup holders and a 12-volt power
receptacle. The cab is also radio-ready
and includes a power converter, antenna
with cable, two speakers and a
headliner location for mounting radio.
The cab offers an exceptional viewing
area to the front tire edge, mixing
chamber and to the rear wheels.
10
8
1
4
9
6
5
2
3
The following features further enhance
operator comfort:
1) Heating/air conditioning controls.
2) Left and right access doors.
3) Rotating cloth seat.
4) Sound absorbing headliner.
5) Tinted glass.
6) Windshield wipers.
7) Cushioned floor mat.
8) Dual front mounted speakers.
9) Radio-ready mount.
10) Heavy-duty isolation mounts.
7
6
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Electronic Control Modules
Reliable field-proven technology makes machine operation simple and self-diagnostics
simplifies troubleshooting.
Reliable field-proven technology
provides maximum productivity and
simplifies troubleshooting.
onic Control Modules (ECM)
Electr
receives input signals from sensors in
the engine, propel, steering and rotor
drive systems which monitor current
operating conditions.
Self-diagnostics provides information
for troubleshooting and alerts the
operator of potential system problems.
Automatic load control adjusts propel
speed so that engine speed does not
drop below 1800 rpm. Machine always
works at peak efficiency for maximum
output.
Optional automatic rotor depth control
provides consistent quality and
performance.
Propel System
Hydrostatic drive provides balanced tractive effort to each drive motor.
Propel pump provides balanced flow to
the dual displacement front drive
motors. Provides superior tractive effort
in soft underfoot conditions.
Load sensing system controlled by the
ECM, matches propel speed to the load
on rotor.
T
wo speed ranges
operate at either maximum torque to
propel the machine through the
toughest conditions or a faster speed for
moving around the job site.
Infinitely variable machine speeds
determined by the propel lever and
speed control dial.
Flow divider control valve provides
equal hydraulic oil flow to each drive
motor to increase tractive effort in
slippery conditions.
y
q
w
t
e
1
Caterpillar C11 Engine
2 Electronic Control Modules
3 Front Wheel Propel Pump
r
4
Front Flow Divider Control Valve
5 Front Wheel Drive Motor
6 Rear Wheel Propel Pump*
7
Rear Flow Divider Control Valve*
8 Rear Wheel Drive Motor*
u
i
*Optional
allow the machine to
7
Page 8
Rear Wheel Drive
Optional rear wheel drive includes a separate hydraulic pump and large displacement
motors on each rear wheel. The system propels the machine with all-wheel drive.
Two propel pump system: one pump is
dedicated to drive the front wheels,
while the second propel pump is
dedicated to drive the rear wheels.
Increased tractive effort for those tough
soil or reclamation jobs.
Flow divider control valve directs equal
hydraulic flow to each rear wheel to
provide all-wheel drive.
High torque large displacement motors
on rear wheels makes this a true fourwheel drive machine.
Large rear tires with an aggressive
tread and large footprint propels the
machine easily in the most severe
applications.
Rear wheel drive feature can be turned
on by a switch on the operator’s
console when maximum tractive effort
is required.
Rotor Drive
Maximum production with high reliability. The mechanical rotor drive system provides
three rotor speeds for maximum performance in a variety of materials and cutting depths.
Hydraulically engaged clutch, high
torque mechanical transmission and
drive axle allows efficient and reliable
transfer of engine power to rotor and is
sized to handle tough cutting and deep
mixing.
Rugged drive chains provide efficient,
continuous power to the rotor
strand heavy-duty chain resists
breakage.
Three rotor speeds for maximum
performance in a variety of materials
and cutting depths. First speed is used
primarily for pulverizing the material.
Second and third rotor speeds can be
used as blending or mixing passes.
High capacity rotor driveshafts and
maintenance-free universal joints.
. Single
Heavy-duty shear disc or optional
torque limiter protects rotor drive
components from torsional stress and
shock loads.
8
Page 9
Mixing Chamber
Mixing chamber is a heavy-duty hood with large volume to handle deep mixing. Ensures
depth control, proper sizing and thorough blending of reclaimed materials.
Mixing chamber allows the rotor to
r
e
w
Rotor
Movement
Machine
Travel
q
move independently so that the capacity
of the chamber actually increases in
deeper cuts to allow better material
mixing.
Mid-machine rotor uses total machine
weight to help keep rotor steady in the
cut for uniform depth control.
Bi-directional mixing capability
increases machine efficiency.
Asphalt
Base
Reclaimed
Material
1 Fully Adjustable Rear Door
2 Universal Rotor (shown)
3 Breaker Bars (if equipped)
4 Fully Adjustable Front Door*
*Optional
Large heavy-duty breaker bars help
achieve uniform sizing.
Hydraulically adjustable rear door for
optimum control of gradation and
material uniformity.
Optional hydraulically adjustable front
door allows more precise sizing control
when operating in the reverse direction.
Side access doors enable quick and
simple replacement of cutting tools on
rotor ends.
Hydraulic Front Door
Optional front door is ideal for peak efficiency on soil stabilization, bio-remediation or
mixing passes on asphalt reclamation.
Hydraulically operated front door
allows the operator to control the
opening of the front door from the
operator
Dual hydraulic cylinders of
lifting force and precise control of the
front door.
’s station.
fer increased
The front door raises parallel to the
cutting surface to prevent the door from
plowing material in harsh soil
stabilization conditions.
ward or reverse operation
For
machine versatility in soil stabilization.
Visual site gauge on rotor hood
displays door position and allows the
operator to precisely control the
opening of the front door.
increases
9
Page 10
Rotor Selection
Choice of two rotor designs for different applications and depth specifications. Tools are
mounted in drive-in, knock-out holders for quick and easy replacement.
Universal Rotor
Designed primarily for use in asphalt r
200 point-attack carbide-tipped tools are mounted
in drive-in, knock-out bolt-on tool holders and
arranged in a chevron pattern for maximum
breakout force.
Breakaway design tool holders allow for fast
replacement without welding.
Kicker paddles placed on every stand-off
improves mixing in soil stabilization and provides
more efficient material movement in full depth
reclamation.
Triple-tree tool placement on rotor ends cleans up
loose material and reduces wear on drum when
maneuvering in the cut.
Maximum depth is 457 mm (18").
eclamation.
Triple-tree tool placement.
Soil Rotor
Designed primarily for use in soil stabilization.
238 point-attack carbide-tipped tools are mounted
in drive-in, knock-out weld-on tool holders and
arranged in a chevron pattern for maximum
breakout force.
Versatile applications – blends additives with
cohesive, semi-cohesive or granular materials.
Replaceable end rings protect rotor mandrel from
. Rings are hard-faced for extended service.
wear
Maximum depth is 508 mm (20").
10
Page 11
Serviceability
Less time on maintenance means more time on the job.
Daily service points are accessible from
ground level and are grouped on one
side of the engine. Hinged ground level
side panels open wide for total access
to engine components. Lower side
panels can easily be removed for even
gr
eater access.
Cooling package is a multi-r
modular design, stacked in series for
easy access for cleaning and service.
modular stacked cooling system
A
provides more ef
individual systems and makes
replacement and routine cleaning easier
Electronically controlled on-demand
variable speed cooling fan provides the
lowest overall noise levels and high
ambient operation capability
ficient cooling of
ow
.
Hydraulic rotor hood tilt rotates hood
forward for convenient access to rotor
for inspection and tool maintenance.
Hinged service doors open wide on
sides of engine, rotor hood and on top
deck for access to power train and rotor
drive components.
Self-lubricating rotor drive chains in
sealed chain cases partially filled with
oil.
Electronic Control Module (ECM)
monitors machine systems and provides
self-diagnostics for operator or service
personnel.
Three warning levels alert operator to
conditions on the machine that require
attention. Encourages repair before
major failure.
Level One – a flashing gauge indicator
and a flashing alert indicator light.
wo – level one warning plus the
T
Level
warning action lamp flashing.
Three – level two warning plus
Level
the warning action horn sounds.
Visual indicators allow easy check of
.
engine coolant, rotor axle and hydraulic
oil level and air restriction indicator.
Quick-connect hydraulic test por
simplify system diagnostics.
Ecology drains provide an
environmental method to drain fluids.
They are included on the radiator,
engine oil pan, hydraulic and fuel tank.
S•O•SSMports allow for simple fluid
collection of engine oil, engine coolant
and hydraulic oil.
Secure hose routing with polyethylene
routing blocks to reduce rubbing and
increase service life.
Nylon braided wrap and all-weather
connectors ensure electrical system
integrity. Electrical wiring is colorcoded, numbered and labeled with
component identifiers to simplify
troubleshooting.
Maintenance-fr
are mounted on the side of the machine
and are accessible from ground level.
Cat batteries are specifically designed
for maximum cranking power and
protection against vibration.
Machine is Product Link wire-ready.
The Caterpillar Product Link System
(CPLS) ensures maximum uptime and
minimum repair costs by simplifying
tracking of equipment fleets. Provides
ts
automatic machine location and hour
updates. Can be obtained through your
local Caterpillar dealer.
ee Caterpillar batteries
11
Page 12
Engine
RM-300
R
The Caterpillar®C1
ACERT®Technology is a six cylinder,
turbocharged air-to-air after-cooled
diesel engine. The engine meets U.S.
EPA Tier 3 and European EU Stage IIIa
engine emission regulations.
Engine Cat®C11
Gross Power kW hp
SAE J1995 261 350
Net Power kW hp
ISO 9249 260 349
EEC 80/1269 260 349
SAE J1349 258 345
Specifications
Bore 130 mm 5.1"
Stroke 140 mm 5.5"
Displacement 11.1 liters 680 in
n
The power ratings apply at a rated
speed of 1800 RPM when tested
under the reference conditions for the
specific standard.
n
The net power advertised is the
power available at the flywheel when
the engine is equipped with an
alternator, air cleaner, muffler and fan
at minimum speed.
n
The net power at the flywheel when
the fan is at maximum speed is 238
kW (318 hp) per the SAE J1349
reference standards.
n
The engine provides a torque of
1384 Nm (1024 lb/ft).
n
Derating is not required up to an
altitude of 2134 m (7000').
1 engine with
Operating Dimensions
Overall length 10 m 32' 10"
A
B Overall machine width 3 m 9' 10"
Width at rear wheels 2.82 m 9' 3"
C
D Rotor hood width 2.73 m 8' 11"
E Height at ROPS 3.5 m 11' 6"
F Height at cab (if equipped) 3.4 m 11' 2"
G Height at handrail 3.37 m 11' 1"
Wheelbase 6.32 m 20' 9"
H
I Ground clearance 720 mm 28.3"
Inside turning radius 3.9 m 12' 10"
D
C
3
A
G
E
H
B
F
I
Service Refill Capacities
Liters Gallons
Fuel tank (useable)
Cooling system
1056
62.5
Engine oil w/filter 32 8.5
Propel planetary
gear reducer (each)
5
Hydraulic tank 233 61.5
Rotor drive axle
Rotor axle hub (each)
17
3.8
Rotor bearing reservoir 2 0.5
Chain case (each)
Rotor transmission
12
RM-300 specifications
25.6 6.8
5.7
279
16.5
1.3
4.5
1.5
Operating Weights
Weights shown are approximate and include coolant, lubricants, 50% fuel level and
a 75 kg (165 lb) operator
Machine W
eights with open platfor
.
m
with universal rotor 23 473 kg 51,750 lb
with soil rotor 22 940 kg 50,576 lb
Optional Configurations (add to above figur
ROPS 512 kg 1129 lb
1
FOPS
Cab
es)
213 kg 470 lb
468 kg
Rotor Options
Two rotor styles are available. Both mount to the standard mixing chamber.
Breaker bars are included with the universal rotor
Rotor
Universal 2438 mm (96") 1525 mm (60") 200 457 mm (18")
Width Diameter Tools Max. Depth
Soil 2438 mm (96") 1625 mm (64") 238 508 mm (20")
.
1032 lb
Page 13
Propel System
Front wheel drive is standard. Rear
wheel drive is optional to provide ondemand all-wheel drive for increased
tractive effort. Operator can activate by
a switch on the front control console.
es
Featur
n
Front wheels are hydrostatically
driven by two dual displacement
piston-type motors. A separate
variable displacement, piston-type
pump with electronic displacement
control supplies pressurized flow.
Planetary gear reduction on each
front wheel end.
n
Front drive motors have two
swashplate positions allowing
operation at either maximum torque
for work or greater speed for moving
around the job site.
n
Gear selection controlled electrically
by a two-position switch on the
operator’s console.
n
Rear wheels are hydrostatically
driven by two radial piston-type
motors. A separate variable
displacement, piston-type pump with
electronic displacement control
supplies pressurized flow.
n
Infinitely variable machine speed and
direction of travel controlled by
propel lever.
n
Speed control dial allows the operator
to set the maximum working speed so
that when the propel lever is placed in
the full forward position, the machine
will return to the pre-set speed.
n
Load sensing system, controlled by
Electronic Control Module (ECM),
matches propel speed to load on the
rotor.
n
Flow divider control valve provides
equal hydraulic oil flow to each drive
motor to increase tractive effort in
slippery conditions. Operator can
activate by a switch on the front
control console. The rear propel
system also includes a flow divider
control valve if machine is equipped
with the rear wheel drive option.
d and r
Max. speeds (for
war
Working 4.3 km/h - 2.7 mph
Roading 9.7 km/h - 6.0 mph
everse):
Rotor Drive System
Operates direct through a hydraulically
actuated clutch driving a mechanical
transmission.
es
Featur
n
ON/OFF switch controls
hydraulically actuated clutch driving
transmission and rotor drive axle.
n
Three rotor speeds are created through
transmission and rotor drive axle.
Choice of rotor speeds permits
working in a wide range of materials,
depths and applications.
n
Rotor speed selection controlled
electrically by a three-position
switch on the operator’s console.
n
Single strand, high strength rotor
drive chains on both sides are
contained in heavy-duty chain cases
partially filled with oil.
n
Shear disc or optional torque limiter
protect rotor drive components.
Rotor Speeds (@ 1800 engine rpm):
First 106 rpm
Second 144 rpm
Third 216 rpm
Rotor Depth Control
Manual rotor height and depth
controlled by operator is standard.
Automatic rotor height and depth is
optional and features electronic over
hydraulic control. ECM controls two
double-acting hydraulic cylinders on
sides of mixing chamber. Actual rotor
height and depth are displayed on the
electronic control panel.
Features
n
Three-position mode switch allows
rotor depth to be controlled manually or
automatically
n
MANUAL mode controls depth using
the raise/lower switch. Visual depth
gauge easily seen from operator
station.
n
AUTOMATIC mode automatically
controls rotor depth to a preset cutting
depth. Setting cutting depth is easily
accomplished first in manual mode by
a switch on the operator’s console.
n
TRAVEL mode selection automatically
raises rotor and hood to a preset travel
height.
.
’s
Steering
hydraulic power-assist, two mode
A
steering system—front and rear wheel
is standard. Four mode features crab
and coordinated steering through ECM
is optional.
Features
n
Two double-acting steering cylinders
control the front wheels and are
powered by a pressure-compensated,
piston-type pump. One double-acting
steering cylinder is attached to the
rear bolster. Constant pressure is
assured in the steering system.
n
Switch on operator’s side console
provides rear wheel steering mode.
Steering Modes
n
Front steer only—controlled by a
hand metering unit, maintained by
closed-loop control. When equipped
with four mode steering, ECM
automatically aligns rear wheels to the
center position for straight tracking.
n
Rear steer—controlled by a toggle
switch, maintained by closed-loop
control.
n
Crab—front and rear wheels turn
simultaneously in the same direction.
n
Coordinated—front and rear wheels
turn simultaneously in the opposite
direction.
n
Switch on operator’s side console
provides four steering modes.
Turning Radius (minimum):
Inside 3.9 m (12' 10")
Brakes
Primary Brake Features
n
Closed-loop hydrostatic drive
provides dynamic braking during
normal operation.
Parking Brake Features
n
Spring-applied/hydraulically-released
multiple disc type brake mounted on
each gear reducer. Secondary brakes
are activated by a button on the
operator’s console, loss of hydraulic
pressure in the brake circuit or when
the engine is shut down.
n
Propel pumps are destroked when
parking brake is engaged. Propel
lever must be returned to neutral after
brake is released before machine will
propel.
RM-300 specifications
13
Page 14
Electrical
The 24-volt electrical system consists
of two maintenance-free Cat batteries.
Electrical wiring is color-coded,
numbered, wrapped in vinyl-coated
nylon braid and labeled with
component identifiers. The starting
system provides 1365 cold cranking
amps (cca). The system includes a
95-amp alternator.
Frame
Fabricated from heavy gauge steel
plates and structural steel tubing. Frame
joined to rear bolster with welded-in
trunion and spherical plain bearings to
allow rear bolster oscillation of 15º.
Tires
Front
28.1" x 26" 18-ply lug-type R-1
262 kPa (38 psi)
Rear
18.4" x 30" 12-ply lug-type R-1
221 kPa (32 psi)
Optional Equipment
Note: Some options listed may be an option in some areas and standard in others. Consult your dealer for specifics.
Roll Over Protective Structure (ROPS)
is a two-post structure that bolts directly
onto flanges welded to the mainframe.
The structure meets ISO 3471. The
structure can be field installed.
Falling Object Protective Structure
(FOPS)
which provides Level 1 protection and
also serves as a sun canopy. The
structure meets ISO 3449. The structure
can be field installed.
Sliding Operator Station slides fully to
both sides of platform using hydraulicassist. Includes a rotating vinyl seat,
handrails, dual access ladders and
vandalism guards for both the front and
side control console.
Sliding Cab includes a rotating cloth
seat, sound absorbing headliner, left and
right side lockable doors, tinted glass,
air conditioning, heater/defroster, dual
front and rear windshield wipers and
rubber floor mat.
ready and includes a power converter,
antenna with cable, two speakers and a
headliner location for mounting.
Rear
with on-demand all-wheel drive in the
work mode to increase tractive effort.
Highly recommended for soil
stabilization applications. Includes
separate propel pump, two radial piston
hydraulic drive motors, flow divider and
free wheeling valve.
freewheel when rear wheel drive is not
engaged.
that bolts directly to the ROPS
The cab is also radio-
Wheel Drive
propels the machine
The rear wheels
Automatic Rotor Depth Control. ECM
automatically controls rotor depth to a
preset cutting depth. Setting cutting depth
is easily accomplished first in manual
mode by a switch on the operator’s
console. Actual rotor height and depth
are displayed on the electronic control
panel. (Includes four mode steering.)
Four Mode Steering. ECM monitors
the position of the steering mode switch
and controls the rear wheels to provide
automatic crab and coordinated steering.
(Includes automatic rotor depth control.)
Hydraulically Operated Front Door
allows the operator to control the
opening of the front door from the
operator’s station. Offers better control
of gradation in reclamation and
increased versatility in soil stabilization
because the machine is able to work in
both directions.
Friction Torque Limiter protects rotor
drive train from high torque loads in the
event the rotor strikes an immovable
The limiter slips momentarily
object.
without interrupting machine operation.
orking Light Package
W
adjustable halogen floodlights, two
front-facing, two rear-facing and two
facing each rotor chamber door
tail lamps, eight amber and two red
reflectors are also included.
Roading Light Package includes two
front-facing headlights, two amber
running lamps, four amber turn
signal/hazard lamps and a slow moving
vehicle sign. Light package used for
highway transport purposes only.
includes six
. Two red
Warning Beacon Light includes an
amber rotating beacon mounted on a
retractable pole and mount.
Mirror Package includes an adjustable
mirror mounted on both sides of the
machine for good visibility to the rear
and along the sides of the machine.
Umbrella provides sun and rain
protection for the operator and includes
a support shaft and mounting hardware.
Only for use on open platform machines
without ROPS or cab.
Water Spray System accurately adds
water to processed material. System
includes a operator interface panel,
hydraulic filter, EDC controlled
hydraulic pump, a 379 - 1895 liters
(100 - 500 U.S. gallons) per minute
vane-type centrifugal pump, in-line flow
meter, spray bar with nozzles and
hydraulically operated single valve
spray bar shut-off.
Powertrain Guard includes three bolton steel guards to provide protection for
the engine crankcase and hydraulic
hoses at front axle area.
Universal Rotor is designed for use in
asphalt reclamation and features
breakaway bolt-on tool holders.
Maximum cutting depth is
457 mm (18").
Soil Rotor is designed for use in soil
stabilization and features weld-on tool
holders. Maximum cutting depth is 508
mm (20").
14
RM-300 specifications
Page 15
RM-300 Specifications
Operating Weight (with ROPS, cab and universal rotor)
Machine 24 454 kg 53,911 lb
at front 15 895 kg 35,042 lb
at rear 8559 kg 18,869 lb
Ratio (front/rear) 65/35
Machine Dimensions
Overall length
Overall width 3 m (9' 10")
Overall height at ROPS 3.37 m (11' 1")
Wheelbase 6.32 m (20' 9")
Ground clearance 720 mm (28.3")
Inside turning radius 3.9 m (12' 10")
Power Train
Engine C11 with ACERT®Technology
Gross power (SAE J1995) 261 kW 350 hp
Speeds
Working 4.3 km/h 2.7 mph
Roading 9.7 km/h 6.0 mph
Drive train (propel) Hydrostatic w/planetary
Tire size (front) 28.1" x 26"
Tire size (rear) 18.4" x 30"
10 m (32' 10")
Rotor Drive System
Rotor drive Chain
Transmission Mechanical
Clutch Hydraulic
Speeds
First 106 rpm
Second 144 rpm
Third 216 rpm
Chain tensile strength 76 365 kg 168,000 lb
Rotor
Cutting width 2438 mm (96")
Cutting depth
Universal 457 mm (18")
Soil 508 mm (20")
Drum diameter
Universal
Soil
Number of tools
Universal
Soil
Tool spacing (tip)
Universal
Soil
1525 mm
1625 mm
200
238
15 mm (0.6")
1.5 mm
1
(60")
(64")
(0.45")
Miscellaneous
Electrical system 24 VDC
Oscillation angle (rear bolster) ± 15°
Fuel capacity 1056 liters 279 gal
Optional Equipment
• Sliding Cab • Auto Rotor Depth Control • Working Light Package
• Roll Over Protective Structure • Four Mode Steering • Roading Light Package
• Falling Object Protective Structure • Friction Torque Limiter • Warning Beacon Light
• Rear Wheel Drive • Hydraulic Front Door • Mirror Package
• Sliding Operator Station • Umbrella • Universal Rotor
• Water Spray System • Powertrain Guard • Soil Rotor
RM-300 specifications
15
Page 16
QEHQ1139 (04/05)
© 2005 Caterpillar
All Rights Reser
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