Page 1
120M2/
120M2 AWD
Motor Graders
Engine
Engine Model Cat
Base Power (1st gear) – Net 108 kW 145 hp
Base Power (1st gear) – Net (Metric) 147 hp
VHP Plus range – Net 108-141 kW 145-189 hp
VHP Plus range – Net (Metric) 147-192 hp
AWD range – Net 114-156 kW 153-209 hp
AWD range – Net (Metric) 155-212 hp
®
C7.1 ACERT™
Emissions
U.S. Tier 4 Interim/EU Stage IIIB
Moldboard
Blade width 3.7 m 12 ft
Weights
Operating Weight, typically equipped 18 095 kg 39,892 lb
Weights – AWD
Operating Weight, typically equipped 18 987 kg 41,859 lb
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Features
Operator Station
A revolutionary cab design provides unmatched
comfort, visibility and ease of use, making the
operator more con dent and productive.
Engine and Power Train
Combining power management with ACERT™
Technology delivers maximum power and ef ciency
while reducing the environmental impact. MSeries2
Motor Graders meet U.S. Tier 4 Interim/EUStageIIIB
emission standards.
Structures, Drawbar, Circle and Moldboard
Durable structures with fast and simple DCM
adjustments deliver precise material control while
lowering operating costs.
Hydraulics
The M Series 2 Motor Grader electro-hydraulics
enable advanced machine controls with precise
and predictable movements.
Integrated Technologies
Full systems integration optimizes machine
performance and availability.
All Wheel Drive (AWD)
Maximum productivity with six powered
wheels. Hydrostatic Mode powers only the front
wheels, perfect for precise nish work. Steering
Compensation adjusts the outside front tire
speed for tighter turns, less scuf ng and tire wear,
and improved control.
Contents
Operator Station ..................................................3
Steering and Implement Controls ....................4
Emissions Technology ........................................5
Engine ...................................................................5
Power Train ..........................................................6
Structures and DCM ...........................................7
“Smart” Machine Systems................................8
All-Wheel Drive (AWD) ......................................8
Hydraulics ............................................................9
Integrated Technologies ..................................10
Work Tools and Attachments ..........................11
Safety ..................................................................12
Customer Support .............................................13
Sustainability .....................................................13
120M2/120M2 AWD
Motor Grader Specications ..........................14
120M2/120M2 AWD Standard Equipment .....18
120M2/120M2 AWD Optional Equipment ......19
2
The M Series 2 continues the legacy of quality already
established by Cat® Motor Graders. The extensive
validation program, combined with improvements
tothemanufacturing process, allows Caterpillar to
further enhance our quality.
The end result of this development process is a motor
grader line with breakthrough technologies, tested in
the eld and built around real applications and real
customer needs. M Series 2 Motor Graders meet U.S.EPA
Tier 4 Interim/EU Stage IIIB emission standards.
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Operator Station
Comfort, productivity, advanced technology.
Visibility
Angled cab doors, a tapered engine enclosure and patented sloped rear window assure excellent
visibility to the work area.
Maximum Control, Maximum Comfort
Caterpillar has built the most comfortable cab in the industry, replacing the control levers and steering
wheel with two joystick controls, and lengthening the cab for more leg room. Machine design features,
like angled doors, provide excellent visibility.
Operator Comfort
The Cat Comfort Series suspension seat and arm/wrist rests are fully adjustable for improved comfort
and productivity. Extra leg room, easy-to-reach long-life rocker switches and revolutionary joystick
controls make this the most comfortable cab in the industry.
Standard HVAC system
The high capacity system dehumidies and pressurizes the cab, circulates fresh air, seals out dust and
keeps windows clear.
Low Interior Sound and Vibration Levels
Multiple isolation mounts along with relocated hydraulic pump and valves signi cantly improve
operator comfort and productivity.
In-Dash Instrument Cluster
Easy-to-read, high-visibility gauges and warning lamps keep the operator aware of critical system
information.
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Steering and Implement Controls
Unprecedented precision and ease of operation.
Ease of Operation
Two electro-hydraulic joysticks require up to 78% less hand
and wrist movement than conventional lever controls for
greatly enhanced operator comfort and efciency. The intuitive
control pattern allows both new and experienced operators
to quickly become productive.
Electronically adjustable control pods help position joysticks
for optimal comfort, visibility and proper operation.
Joystick Functions
• The left joystick primarily controls the machine
direction and speed including steering, articulation,
return-to-center, wheel lean, gear selection, left
moldboard lift cylinder and oat.
• The right joystick primarily controls drawbar, circle
andmoldboard functions including right moldboard lift
cylinder and oat, moldboard slide and tip, circle turn,
drawbar center shift, electronic throttle control and
manual differential lock/unlock.
Intuitive Steering Control
Joystick lean angle mirrors the steer tires’ turning angle.
Abrake tensioning system holds the joystick in position until
the operator moves it. The steering control automatically
reduces steering sensitivity at higher ground speeds for
comfortable and predictable control.
Electronic Throttle Control
Provides easy, precise and consistent throttle operation.
Anautomatic/manual mode switch offers exibility for
different applications and operator preferences.
Articulation Return-to-Center
Automatically returns the machine to a straight frame
position from any angle with the touch of a button.
Auxiliary Pod and Ripper Control (Optional)
Ergonomically positioned to allow simple, comfortable
operation for the multiple hydraulic options.
• Four ngertip controls and a mini joystick maximize
• Innitely variable roller switches provide precise
control of up to six hydraulic circuits. Individual
functions can be programmed with Electronic
Technician (Cat ET). The auxiliary hydraulic pod
isprovided when the machine is con gured with
threeormore auxiliary functions.
control of the rear ripper and/or front lift group
(whenequipped).
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Emissions Technology
Reliable, integrated solutions.
Cat NOx Reduction System
The Cat NOx Reduction System captures and cools a small quantity of exhaust
gas, then routes it into the combustion chamber where it drives down combustion
temperatures and reduces NOx emissions.
Engine
Power and reliability.
A Cat C7.1 ACERT™ engine
and Cat Clean Emissions Module
deliver the performance and
efciency that customers demand,
while meeting Tier 4 Interim/
StageIIIB emission standards.
The C7.1 ACERT engine has
superior torque and lugging
capability to pull through sudden,
short-term loads and maintain
consistent, desirable grading speeds
to get work done faster without
downshifting. The High Pressure
Common Rail Fuel System improves
precision and control with full
electronic injection that boosts
performance and reduces soot.
Hydraulic Demand Fan
The hydraulic demand fan
automatically adjusts cooling fan
speed according to engine cooling
requirements. This reduces demand
on the engine, putting more
horsepower to the ground and
improves fuel ef ciency. Swing-out
design allows easy access to cooling
cores and reduces clean out time.
Aftertreatment Technologies
To meet Tier 4 Interim/Stage IIIB emission standards and beyond, Cat aftertreatment
components have been designed to match application needs. System components
include a Diesel Oxidation Catalyst (DOC), which uses a chemical process to convert
regulated emissions in the exhaust system, and a Diesel Particulate Filter (DPF)
that traps particulate matter that is carried into the exhaust stream.
The DOC, DPF and Cat Regeneration System are contained in a Caterpillar
designed Clean Emission Module (CEM) that protects the components, minimizes
the aftertreatment footprint and simpli es maintenance.
Cat Regeneration System
The Cat Regeneration System is designed to work transparently, without any
interaction needed from the operator. Under most operating conditions, engine
exhaust is hot enough to oxidize soot through passive regeneration. If supplemental
regeneration is needed, the Cat Regeneration System elevates exhaust gas temperatures
to remove soot in the Diesel Particulate Filter (DPF). This is a process that happens
automatically, but the operator can initiate the cycle when convenient or interrupt
regeneration as needed. A soot level monitor can be viewed on the Cat Messenger
screen and regeneration indicator lights are integrated into the front console.
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Power Train
Maximum power to the ground.
Automatic Differential Lock
Unlocks the differential during a turn, re-locks when straight,
for easier operation and lower power train protection.
Front Axle
The Cat sealed spindle keeps bearings free from contaminants
and lubricated in a light weight oil. The Cat “Live Spindle”
design places the larger tapered roller bearing outboard
where the load is greater, extending bearing life.
Inching Pedal
Allows precise control of machine movements and excellent
modulation, critical in close-quarter work or nish grading.
Smooth Shifting Transmission
Several key innovations ensure smooth, powerful shifts.
• Full Electronic Clutch Pressure Control (ECPC) system
optimizes inching modulation for smooth shifts and
directional changes, reducing stress on gears.
• Controlled Throttle Shifting helps to smooth directional
and gear changes without using the inching pedal.
• Load Compensation ensures consistent shift quality
regardless of blade or machine load.
• This standard feature automatically shifts the transmission
at optimal points so the operator can focus on the work
to help improve safety, productivity and ease ofoperation.
• Power Shift Countershaft Transmission and the
CatC7.1 ACERT™ engine maximize power to the ground.
Eightforward/six reverse gears optimize productivity.
• Engine Over-Speed Protection prevents downshifting
until an acceptable safe travel speed has been established.
Bolt-On Modular Rear Axle
Improves serviceability and contamination control with easy
access to differential components.
Hydraulic Brakes
Hydraulically actuated, oil bathed, multi-disc service brakes
at each tandem wheel (1) offer the industry’s largest total
brake surface area (2) for dependable stopping power and
long brake life. The brake wear indicator/compensator
system (3) maintains brake performance and indicates brake
wear without disassembly, for fast servicing and longer brake
service life. The spring-applied, hydraulically released multidisc parking brake, sealed and oil-cooled for long life and
low service, is integrated into the Operator Presence System
to prevent unintended machine movement.
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Structures and DCM
Service ease and precise blade control.
Heavy Duty Durability
The frame, drawbar and one-piece forged steel circle are designed for durability in heavy duty
applications. The strong A-frame drawbar uses a durable tubular design. The front 240° of circle teeth
are hardened to reduce wear and ensure component reliability.
Articulation Hitch
A large tapered roller bearing at the lower pivot carries loads evenly and smoothly. Sealed to prevent
contamination, a locking pin prevents articulation for safety during service or transport.
Aggressive Blade Angle
Allows material to roll more freely along the blade, particularly dry materials or cohesive soils.
Bettermaterial control gets the job done faster, requires less power and saves fuel.
Fast, Easy Adjustment Means Tight Components
Shims and patented top-adjust wear strips are easy to add or replace, dramatically reducing downtime
and operating costs. Durable nylon composite wear inserts maximize circle torque and component
life. Sacricial brass wear strips between the blade mounting group and moldboard can be replaced
easily. Shimless Moldboard Retention System uses vertical and horizontal adjusting screws to keep
moldboardwear strips aligned for reduced blade chatter, precise blade control and dramatic reductions
in service time.
Moldboard
Heat-treated rails, hardened cutting edges and end bits, and heavy duty bolts assure reliability and long
service life. The link bar allows extreme moldboard positioning for bank sloping, ditch cutting and cleaning.
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“Smart” Machine Systems
Advanced diagnostics.
Sharing key data among systems helps optimize
machine performance andaidsserviceability.
• Cat Messenger, combined with full systems
integration, enhances diagnostic capability.
Machine system errors are displayed in
both text and fault codes for quick analysis
of critical data.
• Electronic Technician (Cat ET) lets service
technicians access stored diagnostic data
and congure machine parameters through
the Cat Data Link.
• Low Battery Elevated Idle raises idle
speed when low system voltage is detected,
ensuring adequate system voltage and
improving battery reliability.
• Automatic Engine Deration protects the
engine and aftertreatment by automatically
lowering engine torque output and alerting
the operator ifcritical conditions are detected.
All-Wheel Drive (AWD)
Expanded machine versatility.
All Wheel Drive (AWD)
The AWD arrangement utilizes dedicated left and right pumps for
precise hydraulic control. The in nitely variable pumps and motors
maximize torque in each gear. This delivers the most power to the
ground in the industry and increases productivity.
Maximum Net Power
When AWD is engaged, ywheel horsepower is automatically
increased up to an additional 45 kW (60 hp) from base power.
Thisoffsets the parasitic losses and maximizes net power to the
ground for increased productivity.
Hydrostatic Mode
Standard with AWD, this mode disengages the transmission and
provides hydraulic power to the front wheels only. Theground speed
is innitely variable between 0-8 km/h (0-5mph), perfect for precise
nish work.
Steering Compensation
Cat Steering Compensation System enables a “powered turn” by
adjusting the outside front tire speed up to 50% faster than the inside
tire. The result is improved control, less damage to surfaces and a
dramatic reduction of turning radius in poor underfoot conditions.
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Hydraulics
Advanced machine control.
Advanced Electro-Hydraulic System
Incorporates a state-of-the-art electro-hydraulic system as the foundation for revolutionary changes
inmachine and advanced joystick controls.
Blade Float
Allows the blade to move freely under its own weight. By oating both cylinders, the blade can follow
the contours of the road, especially useful when removing snow. Floating only one cylinder permits the
toe of the blade to follow a hard surface while the operator controls the slope with the other lift cylinder.
Independent Oil Supply
Large, separate hydraulic oil supplies prevent cross-contamination and provide proper oil cooling,
which reduces heat build-up and extends component life.
Load Sensing Hydraulics (PPPC)
The proven load-sensing system and the advanced Proportional Priority Pressure-Compensating
(PPPCor “triple P – C”) electro-hydraulic valves provide superior implement control and enhanced
machine performance in all applications. Continuously matching hydraulic ow/pressure to power
demands creates less heat and reduces power consumption.
• Consistent, Predictable Movement – PPPC valves have different ow rates for the head (red)
androd ends (blue) of the cylinder, ensuring consistent extension and retraction speeds.
• Balanced Flow – Hydraulic ow is proportioned so all implements operate simultaneously with
little effect on the engine or implement speeds.
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Integrated Technologies
Solutions to make work easier and more efcient.
Cat Grade Control Cross Slope
Cross Slope is a factory installed machine control and guidance
system that allows for accurate and real-time positioning of
the moldboard without off-machine infrastructure. Harnesses,
sensors and the in-cab display are fully integrated into the
machine so the system is ready to work from the factory.
Thesystem helps the operator more easily achieve the desired
cross slope by automating one end of the blade. The system
also helps save time and materials so that even less experienced
operators can achieve better results, more quickly. The system
is designed for easy scalability, supporting all two- and
three-dimensional upgrades to be fully compatible with
allAccuGrade™ kits.
AccuGrade Ready Option
Optional factory-installed brackets and hardware make the
grader ready for dealer installation of the AccuGrade grade
control system. Installation is simplied, and integration
ofthe components provides greater protection to enhance
system reliability.
Cat AccuGrade
AccuGrade is a dealer-installed blade control system which
enables operators to cut and ll to grade with increased
accuracy, minimizing the need for traditional survey stakes
and grade checkers. AccuGrade includes Cross Slope, Sonic,
Laser, Global Navigation Satellite System (GNSS) and/or
Universal Total Station (UTS) technologies to automatically
control the blade. In-cab displays show precise elevation and
real-time cut/ll information. More accurate blade positioning
helps operators get to grade faster, with fewer passes than
ever before. The AccuGrade System signi cantly improves
grading productivity and accuracy by as much as 50 percent
over conventional methods.
Cat Product Link*
Remote monitoring with Product Link improves overall eet
management effectiveness. Product Link is deeply integrated
into machine systems. Events and diagnostic codes, as well
ashours, fuel, idle time and other detailed information are
transmitted to a secure web based application, VisionLink™.
VisionLink includes powerful tools to convey information to
users and dealers, including mapping, working and idle time,
fuel level and more.
*Product Link licensing not available in all areas. Please consult your
Cat dealer for availability.
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Work Tools and Attachments
Equip your machine for the job.
Moldboard Options
Standard 3.7 m (12 ft) or optional 4.3 m (14 ft). Left and right side extensions are also available.
Ground Engaging Tools (GET)
A variety of tools are available from Cat Work Tools, including cutting edges, graderbits and end bits,
all designed for maximum service life and productivity.
Front Mounted Groups
A front mounted push plate/counterweight or front lift group are available. The front lift group can be
combined with a front dozer blade or front scarier for added versatility.
Rear Ripper/Scarier
Made to penetrate tough material fast and rip thoroughly for easier movement with the moldboard.
The ripper includes three shanks (with holders for ve). Nine scarier shanks can also be added for
additional versatility.
Snow Removal Work Tools
Multiple snow plow, snow wing and mounting options increase machine versatility and utilization
throughout the year.
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Safety
Protect your most valuable resource.
Designed with Protection in Mind
Features are designed to enhance operator and job site
safety, such as drop-down rear lights and a rearview camera.
Among many standard safety features are laminated glass,
back-up lights, and perforated tandem walkways and grab rails.
Operator Presence System
The parking brake remains engaged and hydraulic implements
disabled until the operator is initially seated and the machine
is ready for operation.
Secondary Steering System
Automatically engages an electric hydraulic pump in case of
a drop in steering pressure, allowing the operator to steer the
machine to a stop.
Hydraulic Lockout
A simple switch located in the cab disables all implement
functions while still providing machine steering control.
Thissafety feature is especially useful while roading.
Brake Systems
Brakes are located at each tandem wheel to eliminate braking
loads on the power train. Redundant brake systems utilize
accumulators to enable stopping in case of machine failure,
further increasing operational safety.
Circle Drive Slip Clutch
This standard feature protects the drawbar, circle and
moldboard from shock loads when the blade encounters an
immovable object. It also reduces the possibility of abrupt
directional changes in poor traction conditions.
Blade Lift Accumulators (Optional)
This optional feature uses accumulators to help absorb
impact loads to the moldboard by allowing vertical blade
travel. Blade lift accumulators help reduce unnecessary wear
and also help reduce impact loading for enhanced
operatorsafety.
Rearview Camera (Optional)
Visibility is further enhanced with an optional Work Area
Vision System (WAVS) through a 178 mm (7 in) LCD
color monitor in the cab. Developed specically for rugged
applications, this durable camera improves productivity and
increases operator awareness of surroundings.
Front and Rear Fenders (Optional)
To help reduce objects ying from the tires, as well as build-up
of mud, snow and debris, optional fenders can be added.
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Customer Support
Unparalleled worldwide support.
Renowned dealer service
From helping you choose the right machine to nancing and
ongoing support, your Cat dealer provides the best in sales
and service.
Manage your costs with preventive maintenance programs
like S•O•SSM analysis, Coolant Sampling and guaranteed
maintenance contracts.
Stay productive with best-in-class parts availability.
YourCatdealer can even help boost your pro ts with
operator training.
And when it’s time for component replacement, yourCatdealer
can help you save even more. GenuineCatRemanufactured
parts carry the same warranty and reliability as new
productsat savings of 40 to 70 percent forpower train
andhydraulic components.
Sustainability
Thinking generations ahead.
M Series 2 Motor Graders are designed to bene t your
business and reduce emissions.
• Cat engine and aftertreatment meet U.S. Tier 4 Interim/
EU Stage IIIB emission standards.
• Integrated machine systems and technologies improve
productivity for greater accuracy, lower fuel use and
reduced machine wear.
• Replaceable wear parts save maintenance time
andcost, and extend major component life.
• Major structures and components are built to be
rebuilt, reducing waste and replacement costs.
• Extended service intervals reduce maintenance
time/cost and waste.
• A variety of safety features help safeguard operators
and others on the job site.
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120M2/120M2 AWD Motor Grader Specications
Engine
Engine Model Cat
Emissions U.S. Tier 4 Interim/ Pump type Variable Piston
Base Power 108 kW 145 hp L/min gal/min
(1stgear)– Net
Base Power 147 hp
(1stgear)– Net
(Metric)
VHP Plus range – 108- 145Net 141kW 189hp
VHP Plus range – 147Net (Metric) 192hp
AWD range – Net 114- 153-
AWD range – Net 155(Metric) 212hp
Displacement 7.01 L 428 in³
Bore 105 mm 4.13 in
Stroke 135 mm 5.31 in
Torque rise 45 %
Max torque 939 N·m 693 lb ft
Speed @ rated power 2,100 rpm
Number of cylinders 6
Derating altitude 3048 m 10,000 ft
Hi Ambient – Fanspeed
Standard 1,000 rpm
Max 1,350 rpm
Min 500 rpm
Standard Capability 43° C 109° F
Hi Ambient 50° C 122° F
Capability
®
C7.1 ACERT™ Circuit type Parallel
EU Stage IIIB
156kW 209hp
VHP Plus – gear
1F, Net 108 kW 145 hp
2F, Net 114 kW 153 hp
3F, Net 120 kW 161 hp
4F, Net 126 kW 169 hp
5F, Net 130 kW 174 hp
6F, Net 134 kW 179 hp
7F, Net 137 kW 184 hp
8F, Net 141 kW 189 hp
• Net power is tested per ISO 9249,
SAEJ1349, and EEC 80/1269 Standards
ineffect at the time of manufacture.
• VHP Plus is a standard attachment for the
120M2; standard for the 120M2 AWD.
• Net power advertised is the power available
at rated speed of 2,100 rpm, measured at
the ywheel when engine is equipped with
fan running at minimum speed, air cleaner,
mufer and alternator.
• No engine derating required up to 3048 m
(10,000 ft).
• Power as declared per ISO 14396
Rated rpm 2,100
VHP+ = 142 kW (190 hp)
AWD = 157 kW (211 hp)
• All non-road U.S. EPA Tier 4, European
Union (EU) Stage IIIB and IV, and
Japan(MLIT) Step IV certi ed diesel
engines are required to use:
– Ultra Low Sulfur Diesel (ULSD) and
Sulfur-Free fuels that are 15 ppm (mg/kg)
sulfur or less.
– Cat DEO-ULS™ or oils that meet
the Cat ECF-3, API CJ-4, and
ACEAE9speci cation.
Power Train
Forward/ 8 Fwd/6 Rev
ReverseGears
Transmission
Brakes
Service
Service,
surfacearea
Parking Multiple Oil Disc
Secondary Dual Circuit
Direct Drive,
Powershift
Multiple Oil Disc
2
23 000 cm
3,565 in
2
Hydraulic System
Pump output 210
Maximum system 24 150 kPa 3,500 psi
pressure
Reservoir tank 60 L 15.85 gal
capacity
Standby Pressure 4200 kPa 609 psi
• Pump output measured at 2,150 rpm
55.7
Operating Speci cations
Top Speed
Fwd.
Rev.
Turning radius, 7.4 m 24 ft 3 in
outside front tires
Steering range – 47.5°
left/right
Articulation angle – 20°
left/right
Fwd.
1st 4.0 km/h 2.5 mph
2nd 5.4 km/h 3.4 mph
3rd 7.8 km/h 4.9 mph
4th 10.8 km/h 6.7 mph
5th 16.8 km/h 10.4 mph
6th 22.8 km/h 14.2 mph
7th 31.4 km/h 19.5 mph
8th 45.7 km/h 28.4 mph
Rev.
1st 3.1 km/h 1.9 mph
2nd 5.9 km/h 3.9 mph
3rd 8.5 km/h 5.3 mph
4th 13.2 km/h 8.2 mph
5th 24.8 km/h 15.4 mph
6th 36.1 km/h 22.4 mph
Calculated with no slip and 14.0R24 tires.
45.7 km/
36.1 km/
h 28.4 mph
h 22.4 mph
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Service Re ll Tandems Blade Range
Fuel Capacity 378 L 100 gal Height 502 mm 19.8 in Circle centershift
Cooling system 49 L 12.9 gal Width 172 mm 6.8 in Right 656 mm 25.8 in
Hydraulic system Sidewall thickness Left 656 mm 25.8 in
Tank 64 L 16.9 gal Inner 14 mm 0.5 in Moldboard sideshift
Engine Oil 30 L 7.9 gal Outer 16 mm 0.6 in Right 660 mm 26 in
Trans./Diff./ 62.5 L 16.5 gal
FinalDrives
Tandem housing 59 L 15.6 gal
(each)
Front wheel spindle 0.5 L 0.13 gal
bearing housing
Circle drive housing 7 L 1.8 gal
Frame
Circle
Diameter 1530 mm 60.2 in
Blade beam 35 mm 1.4 in
thickness
Drawbar
Height 152 mm 6.0 in
Width
Thickness
Front-top/bottom plate
Width 255 mm 10.0 in
Thickness 22 mm 0.87 in
Front frame structure
Height 280 mm 11.0 in
Width 204 mm 8.0 in
Front axle
Height to center 572 mm 22.5 in
Wheel lean, 18°
left/right
Front axle – total 32°
oscillation per side
• Front-top/bottom plate – width tolerance
±2.5 mm (0.098 in)
76.2 mm
9.5 mm
3.0 in
0.4 in
Drive chain pitch 44.5 mm 1.8 in
Wheel axle spacing 1510 mm 59.5 in
Tandem oscillation
Front up 15°
Front down 25°
Moldboard
Blade width 3.7 m 12 ft
Moldboard
Height 610 mm 24 in
Thickness 22 mm 0.87 in
Arc radius 413 mm 16.3 in
Throat clearance 123.9 mm 4.9 in
Cutting edge
Width
Thickness
End Bit
Width 152 mm 6 in
Thickness 16 mm 0.6 in
Blade Pull
Base GVW 10 767 kg 23,737 lb
Max GVW 13 599 kg 29,980 lb
Max GVW AWD 19 998 kg 44,088 lb
Blade Down Pressure
Base GVW 6818 kg 15,030 lb
Max GVW 12 354 kg 27,235 lb
152 mm
16 mm
6 in
0.6 in
Left 510 mm 20.1 in
Maximum blade 90°
position angle
Blade tip range
Forward 40°
Backward 5°
Maximum shoulder reach outside of tires
Right 1905 mm 75 in
Left 1742 mm 68.6 in
Maximum lift 427 mm 16.8 in
aboveground
Maximum depth 720 mm 28.3 in
ofcut
Ripper
Ripping depth,
maximum
Ripper shank holders 5
Ripper shank holder 534 mm 21 in
spacing
Penetration force 8024 kg 17,692 lb
Pryout force 2567 kg 5,660 lb
Machine length 1053 mm 41.5 in
increase, beam raised
226.5 mm 8.9 in
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120M2/120M2 AWD Motor Grader Specications
Scari er Weights Standards
Front, V-Type: 1205 mm 47.4 in Gross Vehicle Weight, base ROPS/FOPS ISO 3471/ISO 3499
Working width
Front, V-Type, 5 or 11 tooth
Working width
Scarifying depth,
maximum
Scari er shank
holders
Scari er shank
holder spacing
Mid, V-Type
Working width
Scarifying depth,
maximum
Scari er shank
holders
Scari er shank
holder spacing
Mid, straight
Working width
Ripping depth,
maximum
Scarifying depth,
maximum
Scari er shank 17
holders
Scari er shank 111 mm 4.4 in
holder spacing
1031 mm
467 mm
5/11
116 mm
1184 mm
292 mm
11
116 mm
1800 mm
317 mm
426 mm
40.6 in
18.4 in
4.6 in
46.6 in
11.5 in
4.6 in
71 in
12.5 in
16.8 in
Total 15 887 kg 35,025 lb Steering ISO 5010
Front axle 3924 kg 8,651 lb Brakes ISO 3450, ISO 10265
Rear axle 11 963 kg 26,374 lb
Gross Vehicle Weight, max
Total 22 220 kg 48,987 lb
Front axle 7110 kg 15,675 lb
Rear axle 15 110 kg 33,312 lb
Operating Weight, typically equipped
Total 18 095 kg
Front axle 4791 kg
Rear axle 13 304 kg
39,892 lb
10,563 lb
29,329 lb
Weights – AWD
Gross Vehicle Weight, base
Total 16 880 kg 37,214 lb
Front axle 4435 kg 9,777 lb
Rear axle 12 445 kg 27,438 lb
Gross Vehicle Weight, max
Total 22 220 kg
Front axle 7110 kg
Rear axle 15 110 kg
Operating Weight, typically equipped
Total 18 987 kg 41,859 lb
Front axle 5268 kg 11,614 lb
Rear axle 13 719 kg 30,244 lb
• Base operating weight calculated on
standard machine con guration with
14.0R24 tires, full fuel tank, coolant,
lubricants and operator.
• Typically equipped operating weight
iscalculated with push block, rear
ripper/scarier, and other equipment.
48,987 lb
15,675 lb
33,312 lb
Sound ISO 6394; ISO 6395
• The static sound operator sound pressure
level measured according to ISO 6394:2008
for a cab offered by Caterpillar, when properly
installed, maintained and tested with doors
and windows closed and engine cooling
hydraulic fan at maximum speed is 70 dB(A).
• The dynamic spectator sound power level
measured according to ISO 6395:2008 for
the standard machine when equipped with
optional sound suppression package and
engine cooling hydraulic fan running at
70% of maximum speed, machine sound is
106 dB(A) for 120M2 and 120M2 AWD,
complying with EU 2000/14/EC requirement.
16
Page 17
Dimensions
1
10
8
11 3 4
12 5
13 6
7
Height – Top of Cab 3320 mm 130.7 in
1
Height – Front Axle Center
2
Length – Between Tandem Axles
3
Length – Front Axle to Moldboard
4
Length – Front Axle to Mid Tandem
5
Length – Front Tire to Rear of Machine
6
Length – Counterweight to Ripper
7
Ground Clearance at Rear Axle
8
Height to Top of Cylinders
9
Height to Exhaust Stack
10
Width – Tire Center Lines
11
Width – Outside Rear Tires
12
Width – Outside Front Tires
13
594 mm 23.4 in
1510 mm 59.4 in
2463 mm 97 in
5917 mm 233 in
8733 mm 343.8 in
10 020 mm 394.5 in
347 mm 13.7 in
2920 mm 115 in
3253 mm 1,280.7 in
2133 mm 84 in
2547 mm 100.2 in
2547 mm 100.2 in
2
9
Optional Tire Arrangements
Wheel Group Tires Tire Arrangement Weight (Total – 6 Tires)
9x24 SP 13.00-24 Firestone SGG RB 12PR 775
14x25 MP 17.5-25 Goodyear HRL DL 3A 16 PR 1487 kg 3,278 lb
14x25 MP 17.5R25 Michelin XHA 1 Star 1523 kg 3,357 lb
14x25 MP 17.5R25 Michelin XTLA 1 Star 1373 kg 3,026 lb
10x24 MP 14.0-24 Goodyear SGG-2A 16 PR 1173 kg 2,586 lb
10x24 MP 14.0R24 Michelin XGLA2 1 Star 1209 kg 2,666 lb
10x24 MP 14.0R24 Bridgestone VKT 1 Star 1371 kg 3,023 lb
10x24 MP 14.0R24 Michelin XSNO+ 1 Star 1305 kg 2,877 lb
10x24 MP 14.0R24 Bridgestone VUT 1 Star 1269 kg 2,798 lb
9x24 SP 14.0R24 Michelin XGLA2 1 Star 1049 kg 2,313 lb
14x25 MP 17.5R25 Bridgestone VKT 1 Star 1523 kg 3,357 lb
13x25 SP 17.5R25 Michelin XHA 1 Star 1320 kg 2,911 lb
13x25 SP 17.5R25 Michelin XTLA 1 Star 1170 kg 2,580 lb
120M2 AWD
14x25 MP 17.5R25 Michelin XSNO+ 1 Star 1403
14x25 MP 17.5-25 Firestone SGG 12PR 1207 kg 2,661 lb
14x25 MP 17.5R25 Bridgestone VSW 1 Star 1673 kg 3,688 lb
10x24 MP 14.0R24 Bridgestone VSW 1 Star 1395 kg 3,076 lb
For a complete list of tire options, contact your local Cat dealer.
kg 1,709 lb
kg 3,094 lb
17
Page 18
120M2/120M2 AWD Standard Equipment
Standard equipment may vary. Consult your Cat dealer for details.
POWER TRAIN
Air cleaner, dual stage, dry type,
diesel, with automatic engine derate and
automatic dust ejector, service indicator
through Cat Messenger
Air-to-air after cooler (ATAAC)
Belt, serpentine, automatic tensioner
Brakes, oil disc, four-wheel, hydraulic
Demand fan, hydraulic, swing-out
Differential Lock/Unlock, Automatic
Drain, engine oil, ecology
Electronic over speed protection
Engine, C7.1 with ACERT Technology,
Tier 4 Interim and Stage IIIB
emission standards
Fuel tank, 378 L (100 gal), ground level
access and sediment drain
Parking brake – multi-disc,
sealed, oil-cooled
Priming pump, fuel
Rear axle, modular
Sediment drain, fuel tank
Tandem drive
Transmission, 8F/6R, power shift,
direct drive
VHP Plus (Variable Horsepower)
ELECTRICAL
Alarm, back up
Alternator, 150 ampere, sealed
Batteries, maintenance free, heavy duty,
1,125 CCA
Breaker panel, ground accessible
Cab harness and electrical hydraulic valves
Electrical system, 24V
Grade Control Ready – Cab harness,
software, electrical hydraulic valves,
bosses and brackets
Lights, roof-mounted roading, reversing,
LED stop and tail
Product Link Ready
Starter, electric
OPERATOR ENVIRONMENT
Accelerator
Air conditioning with heater
Arm and wrist rest, electronically adjustable
Articulation, automatic Return-to-Center
Ashtray and lighter
®
Messenger operator
Cat
information system
Centershift pin indicator
Coat hook
Cup holder
Display, digital speed and gear
Doors, left and right side with wiper
Gauge, machine level
Gauge cluster (analog) – fuel, articulation,
engine coolant temp, engine RPM,
hydraulic oil temp, regen
Hour meter, digital
Joystick hydraulic controls
right/left blade lift with oat
position, circle drive, blade sideshift
and tip, centershift, front wheel lean,
articulation and power steering
Joystick, adjustable armrests
Joystick gear selection
Joystick hydraulic power steering
Ladders, cab, left and right side
Lights, night time cab
Mirror, inside rearview, wide angle
Power port, 12V
Radio Ready, Entertainment
ROPS cab, sound suppressed 70 dB(A)
Seat, cloth-covered, comfort suspension
Seat belt, retractable 76 mm (3 in)
Storage area for cooler/lunchbox
Throttle control, electronic
Windows, laminated glass:
xed front with intermittent wiper
side and rear (3)
FLUIDS
Antifreeze
Extended Life Coolant to –35° C (–30° F)
TIRES, RIMS AND WHEELS
Partial allowance for tires on
254 × 607 mm (10 × 24 in) multi-piecerims
is included in the base machine price
andweight
OTHER STANDARD EQUIPMENT
Accumulators, brake, dual certi ed
Anti-glare paint
Bumper, rear, integrated with hitch
CD ROM Parts Book
Clutch, circle drive slip
Cutting edges
152 × 16 mm (6 × 5/8 in)
curved DH-2 steel
19 mm (3/4 in) mounting bolts
Doors (3), engine compartment, locking
Drawbar – 6 shoes, replaceable wear strips
Electrical hydraulic valves, hydraulic
lines for base 8 functions
Endbits
16 mm (5/8 in) DH-2 steel
19 mm (3/4 in) mounting bolts
Fluid check, ground level
Frame, articulated, with safety lock
Ground level engine shutdown
Hammer (emergency exit)
Horn, electric
Hydraulic lines for base functions
Lockout, hydraulic implement
(for roading and servicing)
Moldboard – 3658 × 610 × 22 mm
(12 ft × 24 in × 7/8 in)
Mounting, cab roof accessories
Pump, hydraulic, high capacity,
98 cm³ (6 in³)
Radiator, cleanout access
(both sides with swing doors)
Secondary steering
Serviceability, LH side
SM
S•O•S
Tandem walkway/guards
Tool box
Tow hitch
ports: engine, hydraulic,
transmission, coolant, fuel
18
Page 19
120M2/120M2 AWD Optional Equipment
Optional equipment may vary. Consult your Cat dealer for details.
kg lb kg lb kg lb
ELECTRICAL POWER TRAIN WORK TOOLS/G.E.T.
Alternator, 280 ampere 2 5 All Wheel Drive 590 1,300 Blade extension, left 113 249
Batteries: Fuel tank, fast ll 14 31
extreme duty, 14 30 Oil, Hydraulic, 0 0
1,400CCA Biodegradable Endbits, overlay 24 52
Converter, 5 11
communication (CB) Precleaner, snow 2 4.4 mounting
Lights: Starter, Heavy Duty, 10 22 Front lift group, 680 1,500
Headlights, high 5 11
Headlights, low 5 11
Working lights, basic 9 20
Working lights, plus 10 22
Warning: Beacon 2 5
orStrobe
Mounting for 5 11
WarningLight
GUARDS
Fenders, Front 56
Fenders, Rear 34
Sound suppression
(Bottom)
Sound suppression
(Enclosure)
Transmission 141
OPERATOR ENVIRONMENT
Fan, defroster,
rearwindow
Mirrors, outside:
heated 24V 15 33
mounted 15 33
Precleaner, HVAC 5 10
Radio ready, AM/FM 9 20
Seat, air suspension, 2 5
cloth
Shade, sun 2 5
Wiper/washer, rear 2 4
110
110
2
123
75
243
243
311
4
Synthetic
1,000 Amp mechanical
Transmission, autoshift 2 5
OTHER ATTACHMENTS
AccuGrade ARO 39 85
Accumulators, 77 170
bladelift
Camera, rearview 9 20
Cat Product Link 5 10
321SR
Drain, ecology, engine
Wiggins
Fenders, front, AWD 56 124
Fenders, rear 119 262
Heater, engine coolant:
120V 1 3
240V 1 3
Hydraulic arrangements with one or more
additional hydraulic valves are available
for rear ripper, dozer, snow plow and
snowwing.
Snow wing mounting, 91 200
frame ready
Sound suppression 15 32
Starting aid, Ether 0.5 1
2 5
hand, 610 mm (2 ft)
Cutting Edges, curved 43 95
Front lift group, 5 11
Grader bit, narrow and 181 400
super penetration
Mid-Mount Scari er, 942 2,077
Package
Mid-Mount Scari er, 57 125
Mounting
Moldboard
4267 mm × 610 mm × 100 220
22 mm (14 ft × 24 in ×
7/8 in)
4267 mm × 686 mm ×
25 mm (14 ft × 27 in ×
1 in)
Push plate,
counterweight
Ripper, mounting
Ripper, rear
Ripper tooth
Scari er, front
Snow Arrangement
Snow Wing Ready 114 355
Package
MACHINE ARRANGEMENTS
Canadian 2 4
Arrangement
European 289 637
Arrangement
European Roading 451 994
Arrangement
257
1285
32
962
28
434
161
567
2,833
70
2,120
61
956
355
19
Page 20
120M2/120M2 AWD Motor Graders
For more complete information on Cat products, dealer services, and industry solutions,
visit us on the web at www.cat.com
© 2012 Caterpillar Inc.
All rights reserved
Materials and specications are subject to change without notice. Featured machines
in photos may include additional equipment. See your Cat 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.
20
AEHQ6323-01 (02-2012)
Replaces AEHQ6323
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