CATERPILLAR 12M3 Motor Grader

The M Series 3 brings the latest emissions reduction technology to the most durable, productive and comfortable motor graders on the market.

From building roads to maintaining them, M Series Motor Graders are designed to help you get more work done in less time. Outstanding durability, unprecedented operator comfort and ease of service help to maximize your return on investment. M Series 3 Motor Graders meet U.S. EPA Tier 4 Final/EU Stage IV emission standards.

SPECS

Base Power (1st gear) – Net 133.0 kW
Engine Model Cat® C9.3 ACERT™
Bore 115.0 mm
Stroke 149.0 mm
Speed @ Rated Power 2,000 rpm
Base Power (1st gear) – Net (Metric) 133.0 kW
Emissions U.S. EPA Tier 4 Final/EU Stage IV
High Ambient – Fan Speed – Standard 1,400 rpm
Maximum Torque (VHP Plus) 1138.0 N·m
Standard Capability 43.0 ° C
Torque Rise 38%
VHP Plus Range – Net 133-172 kW (179-231 hp)
VHP Plus Range – Net (Metric) 133-172 kW (181-234 hp)
VHP Plus: Gear – Net Power – Forward – 1st 133.0 kW
VHP Plus: Gear – Net Power – Forward – 2nd 141.0 kW
VHP Plus: Gear – Net Power – Forward – 3rd 149.0 kW
VHP Plus: Gear – Net Power – Forward – 4th 156.0 kW
VHP Plus: Gear – Net Power – Forward – 5th 160.0 kW
VHP Plus: Gear – Net Power – Forward – 6th 164.0 kW
VHP Plus: Gear – Net Power – Forward – 7th 168.0 kW
VHP Plus: Gear – Net Power – Forward – 8th 172.0 kW
VHP Plus: Gear – Net Power – Reverse – 1st 133.0 kW
VHP Plus: Gear – Net Power – Reverse – 2nd 141.0 kW
VHP Plus: Gear – Net Power – Reverse – 3rd-6th 149.0 kW
Displacement 9.3 L
Number of Cylinders 6
Derating Altitude 3050.0 m
High Ambient – Fan Speed – Maximum 1,550 rpm
High Ambient – Fan Speed – Minimum 500 rpm
High Ambient Capability 50.0 ° C

POWER TRAIN

Forward/Reverse Gears 8 Forward/6 Reverse
Transmission APECS, Direct Drive, Powershift
Brakes – Service Multiple Oil Disc
Brakes – Service, Surface Area 23000.0 cm2
Brakes – Parking Multiple Oil Disc
Brakes – Secondary Dual Circuit

HYDRAULIC SYSTEM

Circuit Type Parallel
Pump Type Variable Piston
Pump Output 210.0 L/min
Maximum System Pressure 24150.0 kPa
Reservoir Tank Capacity 64.0 L
Standby Pressure 6100.0 kPa

OPERATING SPECIFICATIONS

Top Speed – Forward 46.6 km/h
Top Speed – Reverse 36.8 km/h
Turning Radius, Outside Front Tires 7.8 m
Steering Range – Left/Right 50°
Articulation Angle – Left/Right 20°
Forward – 1st 4.1 km/h
Forward – 2nd 5.5 km/h
Forward – 3rd 8.0 km/h
Forward – 4th 11.0 km/h
Forward – 5th 17.1 km/h
Forward – 6th 23.3 km/h
Forward – 7th 32.0 km/h
Forward – 8th 46.6 km/h
Reverse – 1st 3.2 km/h
Reverse – 2nd 6.0 km/h
Reverse – 3rd 8.7 km/h
Reverse – 4th 13.5 km/h
Reverse – 5th 25.3 km/h
Reverse – 6th 36.8 km/h

SERVICE REFILL

Fuel Capacity 394.0 L
Cooling System 57.0 L
Hydraulic System – Total 100.0 L
Hydraulic System – Tank 64.0 L
Diesel Exhaust Fluid 22.0 L
Trans./Diff./Final Drives 70.0 L
Engine Oil 30.0 L
Tandem Housing (each) 76.0 L
Front Wheel Spindle Bearing Housing 0.5 L
Circle Drive Housing 7.0 L

FRAME

Drawbar – Width 76.2 mm
Circle – Diameter 1530.0 mm
Circle – Blade Beam Thickness 40.0 mm
Drawbar – Height 152.0 mm
Circle – Height 138.0 mm
Front Frame Structure – Height 321.0 mm
Front Frame Structure – Width 305.0 mm
Drawbar – Thickness 12.7 mm
Front-Top/Bottom Plate – Width 305.0 mm
Front-Top/Bottom Plate – Thickness 22.0 mm
Front Axle – Height to Center 596.0 mm
Front Axle – Wheel Lean, Left/Right 18°
Front Axle – Total Oscillation per Side 32°

TANDEMS

Height 506.0 mm
Width 201.0 mm
Sidewall Thickness – Inner 16.0 mm
Sidewall Thickness – Outer 18.0 mm
Drive Chain Pitch 50.8 mm
Wheel Axle Spacing 1523.0 mm
Tandem Oscillation – Front Up 15°
Tandem Oscillation – Front Down 25°

MOLDBOARD

Blade Width 3.7 m
Moldboard – Height 610.0 mm
Moldboard – Thickness 22.0 mm
Arc Radius 413.0 mm
Throat Clearance 166.0 mm
Cutting Edge – Width 152.0 mm
Cutting Edge – Thickness 16.0 mm
End Bit – Width 152.0 mm
End Bit – Thickness 16.0 mm
Blade Pull – Base GVW 11462.0 kg
Blade Pull – Maximum GVW 15541.0 kg
Blade Down Pressure – Base GVW 7275.0 kg
Blade Down Pressure – Maximum GVW 13294.0 kg
Moldboard – Blade Width 3.7 m

BLADE RANGE

Circle Centershift – Right 728.0 mm
Circle Centershift – Left 695.0 mm
Moldboard Sideshift – Right 660.0 mm
Moldboard Sideshift – Left 510.0 mm
Maximum Blade Position Angle 90°
Blade Tip Range – Forward 40°
Blade Tip Range – Backward
Maximum Shoulder Reach Outside of Tires – Right 1978.0 mm
Maximum Shoulder Reach Outside of Tires – Left 1790.0 mm
Maximum Lift above Ground 480.0 mm
Maximum Depth of Cut 715.0 mm

RIPPER

Ripper Shank Holder Spacing 533.0 mm
Ripping Depth – Maximum 426.0 mm
Ripper Shank Holders 5
Penetration Force 9440.0 kg
Pryout Force 12607.0 kg
Machine Length Increase, Beam Raised 1031.0 mm

SCARIFIER

Front, V-Type, 5 or 11 Tooth – Scarifier Shank Holder Spacing 116.0 mm
Front, V-Type, 5 or 11 Tooth – Scarifier Shank Holders 5/11
Front, V-Type, 5 or 11 Tooth – Scarifying Depth, Maximum 467.0 mm
Front, V-Type, 5 or 11 Tooth – Working Width 1031.0 mm
Front, V-Type: Working Width 1205.0 mm
Mid, V-Type – Scarifier Shank Holder Spacing 116.0 mm
Mid, V-Type – Scarifier Shank Holders 11
Mid, V-Type – Scarifying Depth, Maximum 292.0 mm
Mid, V-Type – Working Width 1184.0 mm
Rear – Scarifying Depth, Maximum 426.0 mm
Rear – Working Width 2133.0 mm
Rear – Scarifier Shank Holders 9
Rear – Scarifier Shank Holder Spacing 267.0 mm

WEIGHTS

Operating Weight – Typically Equipped 19344.0 kg
Gross Vehicle Weight – Maximum – Front Axle 7745.0 kg
Gross Vehicle Weight – Maximum – Rear Axle 17268.0 kg
Operating Weight, Typically Equipped – Front Axle 5468.0 kg
Operating Weight, Typically Equipped – Rear Axle 13876.0 kg
Gross Vehicle Weight – Base – Front Axle 4238.0 kg
Gross Vehicle Weight – Base – Rear Axle 12736.0 kg
Gross Vehicle Weight – Maximum – Total 25013.0 kg
Gross Vehicle Weight – Base – Total 16974.0 kg
Operating Weight, Typically Equipped – Total 19344.0 kg

DIMENSIONS

Height – Top of Cab 3308.0 mm
Length – Counterweight to Ripper 10136.0 mm
Width – Outside Front Tires 2511.0 mm
Length – Front Axle to Mid Tandem 6123.0 mm
Length – Front Tire to Rear of Machine 8912.0 mm
Length – Front Axle to Moldboard 2552.0 mm
Length – Between Tandem Axles 1523.0 mm
Width – Outside Rear Tires 2511.0 mm
Width – Tire Center Lines 2140.0 mm
Height – Front Axle Center 596.0 mm
Height to Exhaust Stack 3256.0 mm
Height to Top of Cylinders 3040.0 mm
Ground Clearance at Rear Axle 339.0 mm

STANDARDS

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

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