Overview

The M Series Motor Grader has become the industry standard in operational efficiency and overall productivity. The 24M is designed to help you build and maintain the haul roads needed to support maximum efficiency in large mining operations. Unprecedented operator comfort and ease of service help to maximize your return on investment.

Engine

Units:

Base Power (1st gear) – Net	533.0 hp 397.0 kW
Engine Model	Cat® C18 ACERT™ Cat® C18 ACERT™
Base Power (all gears) – Net	533.0 hp 397.0 kW
Base Power (all gears) – Net (Metric)	540.0 hp 397.0 kW
Displacement	1104.5 in3 18.1 L

Power Train

Forward/Reverse Gears	6 Forward/3 Reverse 6 Forward/3 Reverse
Transmission	Automatic, electronic power shift Automatic, electronic power shift
Brakes – Service	Oil-actuated, oil-disc Oil-actuated, oil-disc
Brakes – Service, Surface Area	15733.0 in2 101508.0 cm2
Brakes – Parking	Spring applied, hydraulically released Spring applied, hydraulically released
Brakes – Secondary	Oil-actuated, oil-disc Oil-actuated, oil-disc

Hydraulic System

Circuit Type	Electro-hydraulic load sensing, closed center Electro-hydraulic load sensing, closed center
Pump Type	Variable piston Variable piston
Pump Output	145.0 gal/min 550.0 L/min
Maximum System Pressure	3500.0 psi 24150.0 kPa
Standby Pressure	450.0 psi 3100.0 kPa

Operating Specifications

Top Speed – Forward	27.0 mph 43.4 km/h
Top Speed – Reverse	25.8 mph 41.6 km/h
Turning Radius, Outside Front Tires	40.68 ft 12.4 m
Steering Range – Left/Right	47.5° 47.5°
Articulation Angle – Left/Right	25° 25°
Forward – 1F	2.3 mph 3.7 km/h
Forward – 2F	3.6 mph 5.7 km/h
Forward – 3F	6.0 mph 9.7 km/h
Forward – 4F	9.4 mph 15.1 km/h
Forward – 5F	17.4 mph 28.0 km/h
Forward – 6F	27.0 mph 43.4 km/h
Reverse – 1R	3.4 mph 5.5 km/h
Reverse – 2R	9.0 mph 14.5 km/h
Reverse – 3R	25.8 mph 41.6 km/h

Service Refill

Fuel Capacity	350.0 gal 1326.0 L
Cooling System	24.0 gal 90.0 L
Hydraulic System – Total	70.0 gal 264.0 L
Hydraulic System – Tank	36.0 gal 135.0 L
Circle Drive Housing (each)	2.0 gal 7.5 L
Differential/Final Drives	49.0 gal 184.0 L
Transmission Oil	23.0 gal 87.1 L
Engine Oil	16.0 gal 60.0 L
Tandem Housing (each)	85.0 gal 322.0 L
Front Wheel Spindle Bearing Housing	1.0 gal 4.0 L

Frame

Drawbar – Width	8.9 in 225.0 mm
Circle – Diameter	103.6 in 2631.0 mm
Circle – Blade Beam Thickness	6.3 in 160.0 mm
Drawbar – Height	8.5 in 215.0 mm
Height - Front Axle Center	33.8 in 858.0 mm
Drawbar – Thickness	0.6 in 16.0 mm
Front-Top/Bottom Plate – Width	20.2 in 514.0 mm
Front-Top/Bottom Plate – Thickness	2.0 in 50.0 mm
Front-Side Plates – Width	16.3 in 415.0 mm
Front-Side Plates – Thickness	1.0 in 25.0 mm
Front Axle – Height to Center	32.2 in 817.0 mm
Front Axle – Wheel Lean, Left/Right	18° 18°
Front Axle – Total Oscillation per Side	32° 32°

Tandems

Height	41.0 in 1040.0 mm
Width	13.9 in 353.0 mm
Sidewall Thickness – Inner	1.0 in 25.0 mm
Sidewall Thickness – Outer	1.2 in 30.0 mm
Drive Chain Pitch	3.0 in 76.0 mm
Wheel Axle Spacing	90.0 in 2285.0 mm
Tandem Oscillation – Front Up	20° 20°
Tandem Oscillation – Front Down	20° 20°

Moldboard

Blade Width	24.0 ft 7.3 m
Arc Radius	21.7 in 550.0 mm
Throat Clearance	6.4 in 162.0 mm
Cutting Edge – Width	13.0 in 330.0 mm
Cutting Edge – Thickness	1.1 in 29.0 mm
End Bit – Width	8.0 in 203.0 mm
End Bit – Thickness	1.0 in 25.0 mm
Blade Pull - Base	86500.0 lb 39236.0 kg
Blade Pull - Maximum	95940.0 lb 43518.0 kg
Down Pressure - Base	69583.0 lb 31563.0 kg
Down Pressure - Maximum	75654.0 lb 34316.0 kg
Height	40.0 in 1025.0 mm
Thickness	2.0 in 50.0 mm
Width	24.0 ft 7.3 m

Blade Range

Circle Centershift – Right	210.2 in 5338.0 mm
Circle Centershift – Left	209.9 in 5332.0 mm
Moldboard Sideshift – Right	193.0 in 4902.0 mm
Moldboard Sideshift – Left	178.3 in 4528.0 mm
Maximum Blade Position Angle	35° 35°
Blade Tip Range – Forward	40° 40°
Blade Tip Range – Backward	0° 0°
Maximum Shoulder Reach Outside of Tires – Right	127.1 in 3228.0 mm
Maximum Shoulder Reach Outside of Tires – Left	126.9 in 3222.0 mm
Maximum Lift above Ground	25.0 in 634.0 mm
Maximum Depth of Cut	25.9 in 657.0 mm

Ripper

Ripping Depth – Maximum	17.9 in 454.0 mm
Ripper Shank Holders	7 7
Shank Holder Spacing – Minimum	23.4 in 593.0 mm
Shank Holder Spacing – Maximum	23.8 in 604.0 mm
Penetration Force	29985.0 lb 13601.0 kg
Pryout Force	41052.0 lb 18621.0 kg

Weights

Operating Weight – Typically Equipped	145151.0 lb 65840.0 kg
Gross Vehicle Weight – Typically Equipped	145151.0 lb 65840.0 kg
Gross Vehicle Weight – Maximum – Front Axle	45856.0 lb 20800.0 kg
Gross Vehicle Weight – Maximum – Rear Axle	107001.0 lb 48535.0 kg
Gross Vehicle Weight – Base – Front Axle	42177.0 lb 19131.0 kg
Gross Vehicle Weight – Base – Rear Axle	96110.0 lb 43595.0 kg
Gross Vehicle Weight – Maximum – Total	152857.0 lb 69335.0 kg
Gross Vehicle Weight – Base – Total	138287.0 lb 62726.0 kg
Gross Vehicle Weight – Typically Equipped – Front Axle	43100.0 lb 19550.0 kg
Gross Vehicle Weight – Typically Equipped – Rear Axle	102051.0 lb 46290.0 kg
Gross Vehicle Weight – Typically Equipped – Total	145151.0 lb 65840.0 kg

Standards

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

Engine – U.S. EPA Tier 4 Interim Certified

Base Power (all gears) - Net	533.0 hp 397.0 kW
Base Power (all gears) - Net (Metric)	540.0 hp 397.0 kW
Bore	5.7 in 145.0 mm
Derating Altitude	9655.0 ft 2943.0 m
Displacement	1104.5 in3 18.1 L
Engine Model	Cat® C18 ACERT™ Cat® C18 ACERT™
Maximum Torque – Net	2001.0 lb ft 2713.0 N·m
Number of Cylinders	6 6
Speed @ Rated Power	1800.0 RPM 1800.0 RPM
Standard - Ambient Capability	122.0 ° F 50.0 ° C
Standard - Fan Speed - Maximum	1325.0 RPM 1325.0 RPM
Standard - Fan Speed - Minimum	60.0 RPM 60.0 RPM
Stroke	7.2 in 183.0 mm

Engine – Tier 2

Base Power (all gears) – Net	533.0 hp 397.0 kW
Base Power (all gears) – Net (Metric)	540.0 hp 397.0 kW
Bore	5.7 in 145.0 mm
Derating Altitude	10000.0 ft 3048.0 m
Displacement	1104.5 in3 18.1 L
Engine Model	Cat C18 ACERT Cat C18 ACERT
Maximum Torque – Net	2001.0 lb ft 2713.0 N·m
Number of Cylinders	6 6
Speed @ Rated Power	1800.0 RPM 1800.0 RPM
Standard – Ambient Capability	122.0 ° F 50.0 ° C
Standard – Fan Speed – Maximum	1325.0 RPM 1325.0 RPM
Standard – Fan Speed – Minimum	60.0 RPM 60.0 RPM
Stroke	7.2 in 183.0 mm
Torque Rise – Net	30.0 % 30.0 %