Overview

The M Series 2 continues the legacy of quality already established by Cat® Motor Graders. The extensive validation program, combined with improvements to the manufacturing 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 field 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.

Engine

Units:

Base Power (1st gear) – Net	145.0 hp 108.0 kW
Engine Model	Cat® C7.1 ACERT™ Cat® C7.1 ACERT™
Bore	4.13 in 105.0 mm
Stroke	5.31 in 135.0 mm
Speed @ Rated Power	2,100 rpm 2,100 rpm
Base Power (1st gear) – Net (Metric)	147.0 hp 108.0 kW
Base Power (all gears) – Net	145.0 hp 108.0 kW
Emissions	U.S. Tier 4 Interim/EU Stage IIIB U.S. Tier 4 Interim/EU Stage IIIB
Hi Ambient – Fan Speed – Standard	1,000 rpm 1,000 rpm
Maximum Torque	693.0 lb ft 939.0 N·m
Standard Capability	109.0 ° F 43.0 ° C
Torque Rise	45% 45%
VHP Plus Range – Net	108-141 kW (145-189 hp) 108-141 kW (145-189 hp)
VHP Plus Range – Net (Metric)	108-141 kW (147-192 hp) 108-141 kW (147-192 hp)
VHP Plus – gear 1F, Net	145.0 hp 108.0 kW
VHP Plus – gear 2F, Net	153.0 hp 114.0 kW
VHP Plus – gear 3F, Net	161.0 hp 120.0 kW
VHP Plus – gear 4F, Net	169.0 hp 126.0 kW
VHP Plus – gear 5F, Net	174.0 hp 130.0 kW
VHP Plus – gear 6F, Net	179.0 hp 134.0 kW
VHP Plus – gear 7F, Net	184.0 hp 137.0 kW
VHP Plus – gear 8F, Net	189.0 hp 141.0 kW
Displacement	428.0 in3 7.01 L
Number of Cylinders	6 6
Derating Altitude	10000.0 ft 3048.0 m
High Ambient – Fan Speed – Maximum	1,350 rpm 1,350 rpm
High Ambient – Fan Speed – Minimum	500 rpm 500 rpm
High Ambient Capability	122.0 ° F 50.0 ° C

Power Train

Forward/Reverse Gears	8 Fwd/6 Rev 8 Fwd/6 Rev
Transmission	Direct Drive, Powershift Direct Drive, Powershift
Brakes – Service	Multiple Oil Disc Multiple Oil Disc
Brakes – Service, Surface Area	3565.0 in2 23000.0 cm2
Brakes – Parking	Multiple Oil Disc Multiple Oil Disc
Brakes – Secondary	Dual Circuit Dual Circuit

Hydraulic System

Circuit Type	Parallel Parallel
Pump Type	Variable Piston Variable Piston
Pump Output	55.7 gal/min 210.0 L/min
Maximum System Pressure	3500.0 psi 24150.0 kPa
Reservoir Tank Capacity	15.85 gal 60.0 L
Standby Pressure	609.0 psi 4200.0 kPa

Operating Specifications

Top Speed – Forward	28.4 mph 45.7 km/h
Top Speed – Reverse	22.4 mph 36.1 km/h
Turning Radius, Outside Front Tires	24.3 ft 7.4 m
Steering Range – Left/Right	47.5° 47.5°
Articulation Angle – Left/Right	20° 20°
Forward – 1st	2.5 mph 4.0 km/h
Forward – 2nd	3.4 mph 5.4 km/h
Forward – 3rd	4.9 mph 7.8 km/h
Forward – 4th	6.7 mph 10.8 km/h
Forward – 5th	10.4 mph 16.8 km/h
Forward – 6th	14.2 mph 22.8 km/h
Forward – 7th	19.5 mph 31.4 km/h
Forward – 8th	28.4 mph 45.7 km/h
Reverse – 1st	1.9 mph 3.1 km/h
Reverse – 2nd	3.9 mph 5.9 km/h
Reverse – 3rd	5.3 mph 8.5 km/h
Reverse – 4th	8.2 mph 13.2 km/h
Reverse – 5th	15.4 mph 24.8 km/h
Reverse – 6th	22.4 mph 36.1 km/h

Service Refill

Fuel Capacity	100.0 gal 378.0 L
Cooling System	12.9 gal 49.0 L
Hydraulic System – Tank	16.9 gal 64.0 L
Engine Oil	7.9 gal 30.0 L
Transmission/Differential/Final Drives	16.5 gal 62.5 L
Tandem Housing (each)	15.6 gal 59.0 L
Front Wheel Spindle Bearing Housing	0.13 gal 0.5 L
Circle Drive Housing	1.8 gal 7.0 L

Frame

Drawbar – Width	3.0 in 76.2 mm
Circle – Diameter	60.2 in 1530.0 mm
Circle – Blade Beam Thickness	1.4 in 35.0 mm
Drawbar – Height	6.0 in 152.0 mm
Front Frame Structure – Height	11.0 in 280.0 mm
Front Frame Structure – Width	8.0 in 204.0 mm
Drawbar – Thickness	0.4 in 9.5 mm
Front-Top/Bottom Plate – Width	10.0 in 255.0 mm
Front-Top/Bottom Plate – Thickness	0.87 in 22.0 mm
Front Axle – Height to Center	22.5 in 572.0 mm
Front Axle – Wheel Lean, Left/Right	18° 18°
Front Axle – Total Oscillation per Side	32° 32°

Tandems

Height	19.8 in 502.0 mm
Width	6.8 in 172.0 mm
Sidewall Thickness – Inner	0.5 in 14.0 mm
Sidewall Thickness – Outer	0.6 in 16.0 mm
Drive Chain Pitch	1.8 in 44.5 mm
Wheel Axle Spacing	59.5 in 1510.0 mm
Tandem Oscillation – Front Up	15° 15°
Tandem Oscillation – Front Down	25° 25°

Moldboard

Blade Width	12.0 ft 3.7 m
Moldboard – Height	24.0 in 610.0 mm
Moldboard – Thickness	0.87 in 22.0 mm
Arc Radius	16.3 in 413.0 mm
Throat Clearance	4.9 in 123.9 mm
Cutting Edge – Width	6.0 in 152.0 mm
Cutting Edge – Thickness	0.6 in 16.0 mm
End Bit – Width	6.0 in 152.0 mm
End Bit – Thickness	0.6 in 16.0 mm
Blade Pull – Base GVW	23737.0 lb 10767.0 kg
Blade Pull – Maximum GVW	29980.0 lb 13599.0 kg
Blade Down Pressure – Base GVW	15030.0 lb 6818.0 kg
Blade Down Pressure – Maximum GVW	27235.0 lb 12354.0 kg

Blade Range

Circle Centershift – Right	25.8 in 656.0 mm
Circle Centershift – Left	25.8 in 656.0 mm
Moldboard Sideshift – Right	26.0 in 660.0 mm
Moldboard Sideshift – Left	20.1 in 510.0 mm
Maximum Blade Position Angle	90° 90°
Blade Tip Range – Forward	40° 40°
Blade Tip Range – Backward	5° 5°
Maximum Shoulder Reach Outside of Tires – Right	75.0 in 1905.0 mm
Maximum Shoulder Reach Outside of Tires – Left	68.6 in 1742.0 mm
Maximum Lift above Ground	16.8 in 427.0 mm
Maximum Depth of Cut	28.3 in 720.0 mm

Ripper

Ripper Shank Holder Spacing	21.0 in 534.0 mm
Ripping Depth – Maximum	8.9 in 226.5 mm
Ripper Shank Holders	5 5
Penetration Force	17692.0 lb 8024.0 kg
Pryout Force	5660.0 lb 2567.0 kg
Machine Length Increase, Beam Raised	41.5 in 1053.0 mm

Scarifier

Front, V-Type, 5 or 11 Tooth – Scarifier Shank Holder Spacing	4.6 in 116.0 mm
Front, V-Type, 5 or 11 Tooth – Scarifier Shank Holders	5/11 5/11
Front, V-Type, 5 or 11 Tooth – Scarifying Depth, Maximum	18.4 in 467.0 mm
Front, V-Type, 5 or 11 Tooth – Working Width	40.6 in 1031.0 mm
Front, V-Type: Working Width	47.4 in 1205.0 mm
Mid, Straight – Ripping Depth, Maximum	12.5 in 317.0 mm
Mid, Straight – Scarifier Shank Holder Spacing	4.4 in 111.0 mm
Mid, Straight – Scarifier Shank Holders	17 17
Mid, Straight – Scarifying Depth, Maximum	16.8 in 426.0 mm
Mid, Straight – Working Width	71.0 in 1800.0 mm
Mid, V-Type – Scarifier Shank Holder Spacing	4.6 in 116.0 mm
Mid, V-Type – Scarifier Shank Holders	11 11
Mid, V-Type – Scarifying Depth, Maximum	11.5 in 292.0 mm
Mid, V-Type – Working Width	46.6 in 1184.0 mm

Weights

Operating Weight – Typically Equipped	39892.0 lb 18095.0 kg
Gross Vehicle Weight – Maximum – Front Axle	15675.0 lb 7110.0 kg
Gross Vehicle Weight – Maximum – Rear Axle	33312.0 lb 15110.0 kg
Operating Weight, Typically Equipped – Front Axle	10563.0 lb 4791.0 kg
Operating Weight, Typically Equipped – Rear Axle	29329.0 lb 13304.0 kg
Gross Vehicle Weight – Base – Front Axle	8651.0 lb 3924.0 kg
Gross Vehicle Weight – Base – Rear Axle	26374.0 lb 11963.0 kg
Gross Vehicle Weight – Maximum – Total	48987.0 lb 22220.0 kg
Gross Vehicle Weight – Base – Total	35025.0 lb 15887.0 kg
Operating Weight, Typically Equipped – Total	39892.0 lb 18095.0 kg

Standards

Brakes	ISO 3450, ISO 10265 ISO 3450, ISO 10265
ROPS/FOPS	ISO 3471/ISO 3499 ISO 3471/ISO 3499
Sound	ISO 6394; ISO 6395 ISO 6394; ISO 6395
Steering	ISO 5010 ISO 5010