12M3

The hard working 12M3 gives you the muscle you need for everyday jobs like road maintenance and snow removal. Like all M Series 3 motor graders, this machine offers the best in productivity and operator comfort.


SPECIFICATIONS
Engine
Base Power (1st Gear) - Net 179 HP
Engine Model Cat® C9.3 ACERT™
Bore 4.5 in
Stroke 5.9 in
Speed at Rated Power 2,000 rpm
Base Power (1st Gear) - Net - Metric 181 HP
Emissions U.S. EPA Tier 4 Final/EU Stage IV
High Ambient - Fan Speed - Standard 1,400 rpm
Maximum Torque - VHP Plus 840 lb/ft
Standard Capability 109 °F
Torque Rise 38%
VHP Plus - Gear - Net Power - Forward 1st 179 HP
VHP Plus - Gear - Net Power - Forward 2nd 189 HP
VHP Plus - Gear - Net Power - Forward 3rd 200 HP
VHP Plus - Gear - Net Power - Forward 4th 210 HP
VHP Plus - Gear - Net Power - Forward 5th 215 HP
VHP Plus - Gear - Net Power - Forward 6th 220 HP
VHP Plus - Gear - Net Power - Forward 7th 225 HP
VHP Plus - Gear - Net Power - Forward 8th 231 HP
VHP Plus - Gear - Net Power - Reverse 1st 179 HP
VHP Plus - Gear - Net Power - Reverse 2nd 189 HP
VHP Plus - Gear - Net Power - Reverse 3rd-6th 200 HP
VHP Plus Range - Net 133-172 kW (179-231 hp)
VHP Plus Range - Net - Metric 133-172 kW (181-234 hp)
Displacement 567.5 in³
Number of Cylinders 6
Derating Altitude 10000 ft
High Ambient - Fan Speed - Maximum 1,550 rpm
High Ambient - Fan Speed - Minimum 500 rpm
High - Ambient Capability 122 °F


Power Train
Forward/Reverse Gears 8 Forward/6 Reverse
Transmission APECS, Direct Drive, Powershift
Brakes - Service Multiple Oil Disc
Brakes - Service - Surface Area 3565 in²
Brakes - Parking Multiple Oil Disc
Brakes - Secondary Dual Circuit


Hydraulic System
Circuit Type Parallel
Pump Type Variable Piston
Pump Output 55.7 gal/min
Maximum System Pressure 3500 psi
Reservoir Tank Capacity 16.9 gal (US)
Standby Pressure 885 psi


Operating Specifications
Top Speed - Forward 29 mile/h
Top Speed - Reverse 23 mile/h
Turning Radius - Outside Front Tires 25.59 ft
Steering Range - Left/Right 50°
Articulation Angle - Left/Right 20°
Forward - 1st 2.5 mile/h
Forward - 2nd 3.4 mile/h
Forward - 3rd 5 mile/h
Forward - 4th 6.9 mile/h
Forward - 5th 10.6 mile/h
Forward - 6th 14.5 mile/h
Forward - 7th 19.9 mile/h
Forward - 8th 29 mile/h
Reverse - 1st 2 mile/h
Reverse - 2nd 3.7 mile/h
Reverse - 3rd 5.4 mile/h
Reverse - 4th 8.4 mile/h
Reverse - 5th 15.7 mile/h
Reverse - 6th 23 mile/h


Service Refill
Fuel Capacity 104 gal (US)
Cooling System 15 gal (US)
Hydraulic System - Total 26.4 gal (US)
Hydraulic System - Tank 16.9 gal (US)
Diesel Exhaust Fluid 5.8 gal (US)
Transmission - Differential - Final Drives 18.5 gal (US)
Engine Oil 7.9 gal (US)
Tandem Housing - Each 20 gal (US)
Front Wheel Spindle Bearing Housing 0.13 gal (US)
Circle Drive Housing 1.8 gal (US)


Frame
Drawbar - Width 3 in
Circle - Diameter 60.2 in
Circle - Blade Beam Thickness 1.6 in
Drawbar - Height 6 in
Circle - Height 5.4 in
Front Frame Structure - Height 12.6 in
Front Frame Structure - Width 12 in
Drawbar - Thickness 0.5 in
Front-Top/Bottom Plate - Width 12 in
Front-Top/Bottom Plate - Thickness 0.87 in
Front Axle - Height to Center 23.5 in
Front Axle - Wheel Lean - Left/Right 18°
Front Axle - Total Oscillation per Side 32°


Tandems
Height 19.9 in
Width 7.9 in
Sidewall Thickness - Inner 0.63 in
Sidewall Thickness - Outer 0.71 in
Drive Chain Pitch 2 in
Wheel Axle Spacing 60 in
Tandem Oscillation - Front Up 15°
Tandem Oscillation - Front Down 25°


Moldboard
Blade Width 12 ft
Moldboard - Height 24 in
Moldboard - Thickness 0.87 in
Arc Radius 16.3 in
Throat Clearance 6.5 in
Cutting Edge Width 6 in
Cutting Edge Thickness 0.6 in
End Bit - Width 6 in
End Bit - Thickness 0.6 in
Blade Pull - Base GVW 25269 lb
Blade Pull - Maximum GVW 34262 lb
Blade Down Pressure - Base GVW 16038 lb
Blade Down Pressure - Maximum GVW 29309 lb
Moldboard - Blade Width 12 ft


Blade Range
Circle Centershift - Right 28.7 in
Circle Centershift - Left 27.4 in
Moldboard Sideshift - Right 26 in
Moldboard Sideshift - Left 20.1 in
Maximum Blade Position Angle 90°
Blade Tip Range - Forward 40°
Blade Tip Range - Backward
Maximum Shoulder Reach Outside of Tires - Right 77.9 in
Maximum Shoulder Reach Outside of Tires - Left 70.5 in
Maximum Lift Above Ground 18.9 in
Maximum Depth of Cut 28.1 in


Ripper
Ripper Shank Holder Spacing 21 in
Ripping Depth - Maximum 16.8 in
Ripper Shank Holders 5
Penetration Force 20812 lb
Pry-Out Force 27794 lb
Machine Length Increase, Beam Raised 40.6 in


Scarifier
Front, V-Type - Working Width 47.4 in
Front, V-Type, 5 or 11 Tooth - Scarifier Shank Holder Spacing 4.6 in
Front, V-Type, 5 or 11 Tooth - Scarifier Shank Holders 5/11
Front, V-Type, 5 or 11 Tooth - Scarifying Depth, Maximum 18.4 in
Front, V-Type, 5 or 11 Tooth - Working Width 40.6 in
Mid, V-Type - Scarifier Shank Holder Spacing 4.6 in
Mid, V-Type - Scarifier Shank Holders 11
Mid, V-Type - Scarifying Depth, Maximum 11.5 in
Mid, V-Type - Working Width 46.6 in
Rear - Scarifying Depth, Maximum 16.8 in
Rear - Working Width 84 in
Rear - Scarifier Shank Holders 9
Rear - Scarifier Shank Holder Spacing 10.5 in


Weights
Operating Weight - Typically Equipped 42647 lb
Gross Vehicle Weight - Maximum - Front Axle 17075 lb
Gross Vehicle Weight - Maximum - Rear Axle 38069 lb
Operating Weight - Typically Equipped - Front Axle 12055 lb
Operating Weight - Typically Equipped - Rear Axle 30592 lb
Gross Vehicle Weight - Base - Front Axle 9343 lb
Gross Vehicle Weight - Base - Rear Axle 28077 lb
Gross Vehicle Weight - Maximum - Total 55144 lb
Gross Vehicle Weight - Base - Total 37420 lb
Operating Weight - Typically Equipped - Total 42647 lb


Dimensions
Height - Top of Cab 130 in
Length - Counterweight to Ripper 399 in
Width - Outside Front Tires 98.9 in
Length - Front Axle to Mid Tandem 241 in
Length - Front Tire to Rear of Machine 351 in
Length - Front Axle to Moldboard 100 in
Length - Between Tandem Axles 60 in
Width - Outside Rear Tires 98.9 in
Width - Tire Center Lines 84.3 in
Height - Front Axle Center 23.5 in
Height - Exhaust Stack 128 in
Height - Top of Cylinders 120 in
Ground Clearance - Rear Axle 13.3 in


Standards
Brakes ISO 3450
ROPS/FOPS ISO 3471/ISO 3499
Sound ISO 6394; ISO 6395
Steering ISO 5010


BENEFITS & FEATURES
Operator Station



Machine and Implement Controls



Engine



Emissions Technology



Power Train



Structures and Drawbar-Circle-Moldboard



Hydraulics



Integrated Technologies



Safety



Work Tools and Attachments



Smart Machine Systems



Serviceability and Customer Support



Sustainability



EQUIPMENT
Standard Equipment

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
  • Diesel exhaust fluid tank, 22.0 L (5.8 gal) ground level access, and sediment drain
  • Differential Lock/Unlock, Automatic
  • Drain, engine oil, ecology
  • Economy mode
  • Electronic over speed protection
  • Engine, C9.3 with ACERT Technology, U.S. EPA Tier 4 Final/EU Stage IV emission standards
  • Fuel tank, 394 L (104 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, powershift, direct drive, Advanced Productivity Electronic Control Strategy (APECS)
ELECTRICAL
  • Alarm, back up
  • Alternator, 150 ampere, sealed
  • Batteries, maintenance free, heavy duty, 1125 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
  • Starter, electric
OPERATOR ENVIRONMENT
  • Accelerator
  • Air conditioning with heater
  • Arm and wrist rest, electronically adjustable
  • Articulation, automatic Return-to-Center
  • Cat Messenger operator 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, DEF
  • Hour meter, digital
  • Joystick hydraulic controls right/left blade lift with float 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: - fixed front with intermittent wiper - door with intermittent wipers (3)
  • Windows: tempered: - left and right side wipers - rear and intermittent wiper
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-piece rims is included in the base machine price and weight
OTHER STANDARD EQUIPMENT
  • Accumulators, brake, dual certified
  • 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
  • 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
  • S·O·S℠ ports: engine, hydraulic, transmission, coolant, fuel
  • Tandem walkway/guards
  • Tool box

Optional Equipment

ELECTRICAL
  • Alternator, 280 ampere
  • Batteries: extreme duty, 1,400 CCA
  • Lights: Headlights, high
  • Lights: Headlights, low
  • Lights: Working lights, basic
  • Lights: Working lights, plus, LED
  • Lights: Warning: beacon or strobe
  • Lights: Mounting for warning light
GUARDS
  • Articulation guard
  • Fenders, front
  • Fenders, rear
  • Front axle guard
  • Sound suppression (bottom)
  • Sound suppression (enclosure)
  • Transmission
OPERATOR ENVIRONMENT
  • Mirrors, outside: heated 24V
  • Mirrors, outside: mounted
  • Comfort Plus Arrangement
  • Comfort Premium Arrangement
POWER TRAIN
  • All Wheel Drive
  • Precleaner, snow
  • Starter, extreme duty, 1,000 Amps
  • Transmission, autoshift
OTHER ATTACHMENTS
  • AccuGrade ARO
  • Integrated cross slope
  • Accumulators, blade lift
  • Camera, rearview
  • Cat Product Link 321SR
  • Cat Product Link 522
  • Drain, ecology, engine Wiggins
  • Heater, engine coolant: 120V
  • Heater, engine coolant: 240V
  • Hydraulic arrangements with one or more additional hydraulic valves are available for rear ripper, dozer, snow plow and snow wing.
  • Snow wing mounting, frame ready
  • Starting aid, ether
  • Reversing fan, automatic or manual
WORK TOOLS/G.E.T.
  • Blade extension, left hand, 610 mm (2 ft)
  • Blade extension, right hand, 610 mm (2 ft)
  • Counterweight
  • Cutting edges, curved
  • Endbits, overlay
  • Front lift group, mounting
  • Front lift group, mechanical
  • Grader bit, narrow and super penetration
  • Mid-Mount Scarifier, Package
  • Moldboard: 4267 mm × 610 mm × 22 mm (14 ft × 24 in × 7/8 in)
  • Moldboard: 4267 mm × 686 mm × 25 mm (14 ft × 27 in × 1 in)
  • Push plate
  • Ripper, rear
  • Ripper tooth
  • Scarifier, front
  • Snow Arrangement
  • Snow Wing Ready Package
  • Tow hitch
MACHINE ARRANGEMENTS
  • Canadian Arrangement
  • European Arrangement
  • TUV Roading Arrangement
OPTIONAL TIRE ARRANGEMENTS
  • Rim Size - 9 × 24; Wheel Group - Single-Piece; Tires - 14.0R24
  • Rim Size - 13 × 25; Wheel Group - Single-Piece; Tires - 17.5R25
  • Rim Size - 10 × 24; Wheel Group - Multi-Piece; Tires - 14.0R24
  • Rim Size - 10 × 24; Wheel Group - Multi-Piece; Tires - 14.0-24
  • Rim Size - 14 × 25; Wheel Group - Multi-Piece; Tires - 17.5R25
  • Rim Size - 14 × 25; Wheel Group - Multi-Piece; Tires - 17.5-25
  • Note: Consult your dealer for individual tire width, size and brand.

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