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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 Tier 4 Interim/Stage IIIB equivalent emission standards.

Cat Specs
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Engine

Base Power (1st Gear) - Net
145 HP
Bore
4.13 in
Stroke
5.31 in
Displacement
428 in³
Derating Altitude
10000 ft
Number of Cylinders
6
Speed at Rated Power
2,100 rpm
Torque Rise
45%
Emissions
Tier 4 Interim/Stage IIIB equivalent
Engine Model
Cat® C7.1 ACERT™
Standard Capability
109 °F
Base Power (1st Gear) - Net - Metric
147 HP

Weights

Operating Weight - Typically Equipped
41859 lb

Moldboard

Blade Width
12 ft
Arc Radius
16.3 in
Throat Clearance
4.9 in
End Bit - Width
6 in
Cutting Edge Width
6 in
End Bit - Thickness
0.6 in
Cutting Edge Thickness
0.6 in

Service Refill

Fuel Capacity
100 gal (US)
Hydraulic System - Tank
16.9 gal (US)
Transmission - Differential - Final Drives
16.5 gal (US)
Tandem Housing - Each
15.6 gal (US)
Front Wheel Spindle Bearing Housing
0.13 gal (US)
Circle Drive Housing
1.8 gal (US)
Cooling System
12.9 gal (US)
Engine Oil
7.9 gal (US)

Power Train

Forward/Reverse Gears
8 Forward/6 Reverse
Transmission
Direct Drive, Powershift
Brakes - Secondary
Dual Circuit
Brakes - Service
Multiple Oil Disc
Brakes - Parking
Multiple Oil Disc

Hydraulic System

Circuit Type
Parallel
Pump Type
Variable Piston
Pump Output
55.7 gal/min
Maximum System Pressure
3500 psi
Standby Pressure
609 psi

Standards

ROPS/FOPS
ISO 3471/ISO 3449
Brakes
ISO 3450
Sound
ISO 6394; ISO 6395
Steering
ISO 5010

Blade Range

Maximum Blade Position Angle
90°
Maximum Depth of Cut
28.3 in
Circle Centershift - Right
25.8 in
Moldboard Sideshift - Left
20.1 in
Blade Tip Range - Backward
Circle Centershift - Left
25.8 in
Maximum Shoulder Reach Outside of Tires - Left
68.6 in
Maximum Lift Above Ground
16.8 in
Moldboard Sideshift - Right
26 in
Maximum Shoulder Reach Outside of Tires - Right
75 in
Blade Tip Range - Forward
40°

Operating Specifications

Forward - 6th
14.2 mile/h
Reverse - 6th
22.4 mile/h
Turning Radius - Outside Front Tires
24.3 ft
Reverse - 1st
1.9 mile/h
Forward - 1st
2.5 mile/h
Reverse - 4th
8.2 mile/h
Top Speed - Forward
28.4 mile/h
Forward - 4th
6.7 mile/h
Forward - 7th
19.5 mile/h
Steering Range - Left/Right
47.5°
Reverse - 2nd
3.9 mile/h
Forward - 2nd
3.4 mile/h
Reverse - 5th
15.4 mile/h
Top Speed - Reverse
22.4 mile/h
Forward - 5th
10.4 mile/h
Forward - 8th
28.4 mile/h
Articulation Angle - Left/Right
20°
Reverse - 3rd
5.3 mile/h
Forward - 3rd
4.9 mile/h

Frame

Front Axle - Total Oscillation per Side
32°
Circle - Blade Beam Thickness
1.4 in
Front Frame Structure - Width
8 in
Drawbar - Width
3 in
Drawbar - Height
6 in
Front Axle - Height to Center
22.5 in
Circle - Diameter
60.2 in
Front Frame Structure - Height
11 in

Tandems

Tandem Oscillation - Front Down
25°
Sidewall Thickness - Inner
0.5 in
Sidewall Thickness - Outer
0.6 in
Tandem Oscillation - Front Up
15°
Height
19.8 in
Width
6.8 in
Drive Chain Pitch
1.8 in
Wheel Axle Spacing
59.5 in

Ripper

Ripping Depth - Maximum
8.9 in
Ripper Shank Holders
5
Penetration Force
17692 lb
Pry-Out Force
5660 lb
Machine Length Increase, Beam Raised
41.5 in

Air Conditioning System

Air Conditioning
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.6 kg of refrigerant which has a CO2 equiv