Milton CAT 24M User Manual
Engine
Engine Model Cat®C18 ACERT™
Base Power (all gears) – Net 397 kW 533 hp
Moldboard
Width 7.3 m 24 ft 0 in
Gross Vehicle Weight – Base
Total 62 456 kg 137,692 lb
Front Axle 18 761 kg 41,360 lb
Rear Axle 43 695 kg 96,332 lb
24M
Motor Grader Preliminary
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24M Motor Grader Preliminary
The 24M delivers multiple technological breakthroughs to give you the best return
on your investment.
The 24M motor grader represents a
revolution in operational efficiency and
overall productivity, setting a new standard
and building on a legacy of high quality
you can trust.
Safety
Caterpillar®has been and continues to
be proactive in developing machines
that meet or exceed safety standards.
pg. 11
✔
Integrated Electronic Solutions
Full systems integration with advanced
electronics including Cat Messenger,
AccuGrade™ blade control system and
Cat®ET, create a “Smart Machine” that
optimizes performance and availability.
pg. 10
✔
Structures, Drawbar, Circle
and Moldboard
The rugged construction of the 24M
frame and DCM provides durability
and maximum productivity. pg. 6
Steering and Implement Controls
Two joysticks offer precise control
and unparalleled ease of operation.
This advanced technology makes the
24M the most operator-friendly motor
grader in the world. pg. 5
✔
Operator Station
A technologically advanced cab,
featuring joystick controls, provides
unmatched comfort. pg. 4
✔
✔ New Feature
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Serviceability and Customer Support
Fast component replacement and
minimum downtime are possible
with the Caterpillar exceptional parts
availability and dealers’ advanced
rebuild and repair capabilities. pg. 12
Hydraulics
The Electro-Hydraulic load-sensing
system provides the foundation for
advanced machine controls, enabling
superior controllability, precise and
predictable hydraulic movements,
with the reliability you expect from
Caterpillar. pg. 9
✔
Engine
The Cat®C18 engine with ACERT™
Technology delivers maximum power
and efficiency while reducing the
environmental impact. pg. 8
✔
Power Train
An electronically controlled power shift
transmission assures smooth shifting
and maximum power to the ground.
A modular rear axle and hydraulic
brakes simplify serviceability and
reduce operating costs. pg. 7
✔
Advanced Joystick Controls.
Two electro-hydraulic joysticks reduce
hand and wrist movement as much as
78% compared to conventional lever
controls for greatly enhanced operator
efficiency. The intuitive pattern is easy to
learn, and provides the precise implement
control you expect from Caterpillar.
Ripper Control. The ripper control is
ergonomically positioned to allow
simple, comfortable operation.
Visibility. The exceptional forward view
made possible by a unique raised cab
design and a one-piece front window,
helps improve operator confidence and
productivity. The large side windows
offer a clear view of the moldboard heel
and tandem tires. A wide rear window
provides good visibility behind the
machine.
Glare reducing paint on the front frame,
lift arms and rear enclosure helps reduce
glare, resulting in safer operation at night.
Cat Comfort Series Seat. The Cat
Comfort Series air suspension seat has
an ergonomic high-back design, with
extra thick contoured cushions and
infinitely adjustable lumbar support that
evenly distributes the operator’s weight.
Multiple seat controls and armrests
are easy to adjust for optimal support
and comfort all day.
In-Dash Instrument Cluster.
The instrument panel, with easy-toread, high-visibility gauges and warning
lamps, keeps the operator aware of
critical system information.
Cat Messenger. Cat Messenger provides
real-time machine performance and
diagnostic data. The operator can quickly
view critical performance and operating
information, in multiple languages,
helping to maximize the life and
productivity of the machine.
Controls and Switches. Reliable, longlife rocker switches are located on the
right side cab post and front instrument
cluster, within easy reach for the operator.
Controls and switches are backlit for
increased safety during night time
operations.
Comfort and Convenience. Caterpillar
has built the most comfortable cab in
the industry by replacing the control
levers and steering wheel with two
joystick controls. Extra leg and foot
room create a spacious, open cab.
The cab includes built-in storage space
for personal items such as a lunch box,
cooler and coat. The cab floor is flush
with the bottom of the doors, making
it easy to sweep and keep clean.
Multiple adjustment capabilities for the
arm rest, wrist rest and joystick pods
help keep the operator comfortable
throughout a long shift.
Modular HVAC System. The standard
modular heating, ventilation and air
conditioning system is fully integrated
into the design of the cab. The modular
design allows for easy replacement
or repair with minimum downtime.
Intelligent placement of vents provides
consistent climate control and clear
windows for every condition. The highcapacity system dehumidifies air and
pressurizes the cab, circulating fresh
air while sealing out dust.
Low Interior Sound and Vibration
Levels. Isolation mounts for the cab,
engine and transmission significantly
reduce sound and vibration. The quiet
interior with low vibration levels provide
a comfortable work environment.
Additional Cab Features. Additional
cab features include cup holder, lighter,
ashtray, coat hook, storage area night
time light and power port. Optional rear
view camera, 25-amp power converter
and satellite radio are also available.
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Operator Station
The 24M features a revolutionary cab design that provides unmatched comfort and ease
of use, making the operator more confident and productive.
Ease of Operation. The revolutionary
joystick controls make the 24M easier
to operate without sacrificing control.
The intuitive joystick control pattern
allows both new and experienced
operators to become productive quickly.
Logical grouping of hydraulic functions
in the joysticks allow any operator to
easily control several functions at the
same time. This allows the operator to
be more productive and remain
comfortable throughout the work shift.
Intuitive Steering Control. The 24M
introduces a breakthrough in joystick
steering control. This technology
creates a direct relationship between
the lean angle of the joystick and the
turning angle of the steer tires.
A brake tensioning system holds the
joystick in position until the operator
moves it. In addition, the steering
control automatically reduces steering
sensitivity at higher ground speeds for
comfortable and predictable control.
Electronic Throttle Control. Electronic
Throttle Control (ETC) provides the
operator with easy, precise, and consistent
throttle operation. An automatic and
manual mode on a single switch offers
flexibility for different applications
and operator preference.
Left Joystick Functions. The left
joystick primarily controls the machine
direction and speed.
1 – Steering: Lean joystick left and right
2 – Articulation: Twist joystick left
and right
3 – Articulation Return to Center:
Yellow thumb button
4 – Wheel Lean: Two black thumb
buttons
5 – Direction: Index trigger shifts
transmission to forward, neutral
or reverse
6 – Gear Selection: Two yellow thumb
buttons upshift and downshift
7 – Left moldboard lift cylinder:
Push joystick to lower, pull joystick
to raise
7 – Left moldboard lift cylinder float:
Pushing joystick through detent
engages float
Articulation Return-to-Center.
This exclusive feature automatically
returns the machine to a straight frame
position from any articulation angle with
the touch of a single button. Return-toCenter helps improve productivity and
safety by allowing the operator to focus
on controlling the moldboard.
Right Joystick Functions. The right
joystick primarily controls the Drawbar,
Circle and Moldboard functions.
1 – Right moldboard lift cylinder:
Push joystick to lower, pull joystick
to raise
1 – Right moldboard lift cylinder float:
Pushing joystick through detent
engages float
2 – Moldboard slide: Lean joystick left
and right
3 – Circle turn: Twist joystick left
and right
4 – Moldboard tip: Thumb switch fore
and aft
5 – Drawbar center shift: Thumb switch
left and right
6 – Electronic Throttle Control:
Top trigger button is resume and
decrement
7 – Auto differential Lock/Unlock:
Bottom trigger button
Ripper Control. An infinitely variable
roller switch controls the rear ripper for
easy and comfortable control.
5
Steering and Implement Controls
The 24M sets the new standard for motor grader operational efficiency.
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Front Frame Structure. Continuous top
and bottom plate construction provides
consistency and strength. The flanged
box section design removes welds from
high stress areas, improving reliability
and durability.
Rear Frame Structure. Two steel plates
running the full length of the rear frame
are integrated with the box section hitch.
This helps resist torsion loads and ensure
structural durability. The integrated steel
tube unifies the rear frame and supports
the engine, while helping the frame
withstand heavy-duty applications.
Articulation Hitch. A large tapered
roller bearing at the lower pivot carries
loads evenly and smoothly. A mechanical
locking pin prevents frame articulation
to ensure safety when servicing or
transporting the machine.
Circle Construction. A one-piece forged
steel circle is built to stand up to high
stress loads and provide structural
durability. The front 240° of circle teeth
are hardened to reduce wear and ensure
component reliability.
Adjustable Rear Circle Drive.
An adjustable rear circle drive makes
serviceability easier and faster, and
also reduces component wear by
keeping components tight.
Drawbar Construction. The A-frame
drawbar features a box-section design
for high strength and optimum durability.
Yoke Plate. Full-length yoke plate
gives strength, support and protection
to the circle.
Aggressive Blade Angle. With a long
wheelbase the operator can obtain
aggressive moldboard angles, so material
rolls more freely along the length of the
blade. This is particularly helpful when
handling very dry materials or cohesive
soils. Better material control gets the
job done faster, requires less power
and saves fuel.
Replaceable Wear Inserts. Tough,
durable wear inserts reduce rotational
friction for maximum circle torque and
longer component life. They are located
between the drawbar and circle, and
between the support shoes and circle.
High load-resistant brass wearstrips
are placed between the blade mounting
group and moldboard. This sacrificial
wear system can be replaced easily
and helps keep components tight
for fine grading.
Moldboard. The optimal curvature and
large throat clearance help move material
quickly and efficiently. Heat-treated
moldboard rails, hardened cutting edges
and end bits, and large diameter bolts
assure reliability and longer service life.
Push Plate/Counterweight. A front
mounted push plate/counterweight can
be added on the 24M.
Ripper. The 24M standard ripper is made
to penetrate tough material fast and rip
thoroughly for easier material movement
with the moldboard. The ripper includes
three shanks with the ability to add four
more if needed.
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Structures, Drawbar, Circle and Moldboard
Rugged structures and DCM design deliver maximum durability and productivity.
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