CAT 18M3 Motor Grader

Ripper

Pry-Out Force 43700 lb (19822 kg)
Ripping Depth – Maximum 17.8 in (452.2 mm)
Ripper Shank Holders 7
Penetration Force 30311 lb (13748.9 kg)
Machine Length Increase, Beam Raised 63.4 in (1610.4 mm)
Shank Holder Spacing – Minimum 17.5 in (444.5 mm)
Shank Holder Spacing – Maximum 20 in (508 mm)

Engine Details

Number Of Cylinders 6

Frame

Front Frame Structure – Height 1.6 ft in (459.8 mm)
Front Frame Structure – Width 1.2 ft in (355.6 mm)
Front Frame Structure – Thickness 0.1 ft in (15.3 mm)

Engine Details

Displacement 763 cu in (12.6 L)
Bore 5.1 in (129.6 mm)
Stroke 6.2 in (157.5 mm)
Engine Model Cat C13 ACERT VHP
Base Power (1st Gear) – Net 304 hp (226.7 kw)
Speed At Rated Power 2,000 rpm
Base Power (1st Gear) – Net – Metric 309 hp (230.5 kw)

Frame

Circle – Diameter 71.7 in (1821.2 mm)
Drawbar – Height 8 in (203.2 mm)
Front Axle – Height To Center 26.4 in (670.6 mm)
Circle – Blade Beam Thickness 2 in (50.8 mm)
Front Axle – Total Oscillation Per Side 35 degrees
Drawbar – Width 3 in (76.2 mm)

Engine Details

Standard – Fan Speed – Maximum 1,450 rpm
Standard – Fan Speed – Minimum 550 rpm
Standard – Ambient Capability 122 degrees
Vhp Range – Net – Metric 227-266 kW (309-362 hp)
Vhp Range – Net 227-266 kW (304-357 hp)
Torque Rise – Tier 4/Stage Iv/Japan 2014 (Tier 4 Final) 40%
Torque Rise – Tier 3/Stage Iiia/Japan 2006 (Tier 3) Equivalent 38%
Emissions (1) U.S. EPA Tier 4 Final/EU Stage IV/Japan 2014 (Tier 4 Final)
Emissions (3) Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent Emission Standards
Emissions (2) Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent Emission Standards
Torque Rise – Tier 2/Stage Ii/Japan 2001 (Tier 2) Equivalent 38%
Maximum Torque – Iso 9249 – Tier 4/Stage Iv/Japan 2014 (Tier 4 Final) 1306 lb ft (1770.7 Nm)
Maximum Torque – Iso 9249 – Tier 3/Stage Iiia/Japan 2006 (Tier 3) Equivalent 1270 lb ft (1721.9 Nm)
Maximum Torque – Iso 9249 – Tier 2/Stage Ii/Japan 2001 (Tier 2) Equivalent 1270 lb ft (1721.9 Nm)
Derating Altitude – Tier 4/Stage Iv/Japan 2014 (Tier 4 Final) 12500 ft in (3810 m)
Derating Altitude – Tier 3/Stage Iiia/Japan 2006 (Tier 3) Equivalent 12176 ft in (3711.3 m)
Derating Altitude – Tier 2/Stage Ii/Japan 2001 (Tier 2) Equivalent 12973 ft in (3954.2 m)
Optimized Vhp Range – Net 227-266 kW (304-357 hp)

Frame

Front Axle – Wheel Lean 18 degrees Left/17 degrees Right

Power Train

Brakes – Parking Spring applied, hydraulically released
Brakes – Service Oil-actuated, oil disc
Transmission Direct drive, power shift, countershaft
Forward/Reverse Gears 8 Forward/6 Reverse
Brakes – Secondary Oil-actuated, oil-disc
Brakes – Dynamic Brake Torque Per Wheel 27069.3 lb ft (36701.1 Nm)

Weights

Operating Weight – Typically Equipped 74324 lb (33712.9 kg)

Hydraulic System

Standby Pressure 856 psi
Maximum System Pressure 3590 psi
Pump Type Variable piston
Circuit Type Electro-hydraulic load sensing, closed center
Note *Pump output measured at 2,150 rpm.

Moldboard

Blade Width 18 ft in (5.5 m)
Arc Radius 16.3 in (414.1 mm)
Throat Clearance 5 in (127 mm)
Thickness 1 in (25.4 mm)
Cutting Edge Width 10 in (254 mm)
Cutting Edge Thickness 1.4 in (35.6 mm)
End Bit – Width 6 in (152.4 mm)
End Bit – Thickness 0.8 in (19.1 mm)
Note *Blade pull calculated at 0.9 traction coefficient, which is equal to ideal no-slip conditions, and Gross Machine Weight.
Width 18 ft in (5.5 m)
Height 31 in (787.4 mm)

Hydraulic System

Pump Output* 74 gal/min

Moldboard

Blade Pull* – Maximum Gvw 52878 lb (23985.1 kg)
Down Force – Maximum Gvw 43861 lb (19895.1 kg)
Blade Pull* – Base Gvw 47216 lb (21416.9 kg)
Down Force – Base Gvw 34008 lb (15425.8 kg)

Operating Specifications

Note Calculated with no slip and 23.5R25 L-3 tires.
Top Speed – Forward 32.1 mph (51.7 km/h)
Top Speed – Reverse 25.3 mph (40.8 km/h)
Turning Radius – Outside Front Tires 30.5 ft in (9.3 m)
Steering Range – Left/Right 47.5 degrees
Articulation Angle – Left/Right 20 degrees
Forward – 8th 32.1 mph (51.7 km/h)
Forward – 7th 22 mph (35.5 km/h)
Forward – 6th 16 mph (25.8 km/h)
Forward – 5th 11.8 mph (19 km/h)
Forward – 4th 7.6 mph (12.3 km/h)
Forward – 3rd 5.5 mph (8.9 km/h)
Forward – 2nd 3.8 mph (6.2 km/h)
Forward – 1st 2.8 mph (4.6 km/h)
Reverse – 6th 25.3 mph (40.8 km/h)
Reverse – 5th 17.4 mph (28.1 km/h)
Reverse – 4th 9.3 mph (15 km/h)
Reverse – 3rd 6 mph (9.7 km/h)
Reverse – 2nd 4.1 mph (6.6 km/h)
Reverse – 1st 2.2 mph (3.6 km/h)

Dimensions (Approximate)

Height – Top Of Cab 12.3 ft in (0.4 m)
Length – Front Axle To Mid Tandem 290 in (7366 mm)
Length – Between Tandem Axles 72.5 in (1841.5 mm)
Height – Front Axle Center 29.9 in (759.5 mm)
Length – Front Axle To Moldboard 120.7 in (3065.8 mm)
Length – Counterweight To Ripper 474.4 in (12049.8 mm)
Length – Front Tire To Rear Of Machine – Including Tow Hitch 417 in (10591.8 mm)
Height – Exhaust Stack 141.1 in (3584 mm)
Width – Tire Center Lines 106.4 in (2702.6 mm)
Width – Outside Rear Tires 134.3 in (3411.3 mm)
Width – Outside Front Tires 134.3 in (3411.3 mm)
Height – Top Of Cylinders 122.6 in (3114.1 mm)
Ground Clearance – Rear Axle 16.7 in (424.2 mm)

Standards

Brakes ISO 3450: 2011
Rops/Fops ISO 3471: 2008/ISO 3449: 2005
Sound ISO 6394: 2008/ISO 6395: 2008/ISO 6396: 2008
Steering ISO 5010: 2007

Service Refill

Cooling System 18.5 gal (70.1 L)
Hydraulic System – Total 38.6 gal (146.2 L)
Engine Oil 9.5 gal (36 L)
Hydraulic System – Tank 18.5 gal (70.1 L)
Def Tank 4.2 gal (15.9 L)
Tandem Housing – Each 34 gal (128.8 L)
Circle Drive Housing 2.6 gal (9.9 L)
Front Wheel Spindle Bearing Housing 0.3 gal (1 L)
Fuel Tank Capacity 131 gal (495.9 L)
Transmission – Differential – Final Drives 26 gal (98.5 L)

Blade Range

Circle Centershift – Right 22 in (558.8 mm)
Circle Centershift – Left 27.2 in (690.9 mm)
Moldboard Sideshift – Right 31.1 in (790 mm)
Moldboard Sideshift – Left 29.1 in (739.2 mm)
Blade Tip Range – Forward 40 degrees
Blade Tip Range – Backward 5 degrees
Maximum Shoulder Reach Outside Of Tires – Right 103 in (2616.2 mm)
Maximum Shoulder Reach Outside Of Tires – Left 103 in (2616.2 mm)
Maximum Lift Above Ground 15.7 in (398.8 mm)
Maximum Depth Of Cut 18.5 in (469.9 mm)
Maximum Blade Position Angle 65 degrees

Tandems

Height 25.5 in (647.7 mm)
Width 9.3 in (236.3 mm)
Sidewall Thickness – Inner 0.9 in (22.9 mm)
Sidewall Thickness – Outer 0.9 in (22.9 mm)
Drive Chain Pitch 2.5 in (63.5 mm)
Wheel Axle Spacing 72.5 in (1841.5 mm)
Tandem Oscillation – Front Up 15 degrees
Tandem Oscillation – Front Down 25 degrees

Optional Tire Arrangements

Wheel Group – 19.525 Mp (1) Tires: 23.5R25 Bridgestone VKT 2 Star
Wheel Group – 19.525 Mp (2) Tires: 23.5R25 Bridgestone VKT 1 Star
Wheel Group – 19.525 Mp (3) Tires: 23.5R25 Bridgestone VJT 1 Star
Wheel Group – 19.525 Mp (4) Tires: 23.5R25 Michelin XHA 2 Star
Wheel Group – 19.525 Mp (5) Tires: 23.5R25 Michelin XLDD 2 Star L5

Variable Power Tier 4 Final/Stage Iv/Japan 2014 (Tier 4 Final), Tier 3/Stage Iiia/Japan 2006 (Tier 3) Equivalent Or Tier 2/Stage Ii/Japan 2001 (Tier 2) Equivalent Emission Standards – Metric

Gear – Forward 1st 309 hp (230.5 kw)
Gear – Forward 2nd 309 hp (230.5 kw)
Gear – Forward 3rd 315 hp (234.9 kw)
Gear – Forward 4th 325 hp (242.4 kw)
Gear – Forward 5th 332 hp (247.6 kw)
Gear – Forward 6th 341 hp (254.3 kw)
Gear – Forward 7th 347 hp (258.8 kw)
Gear – Forward 8th 362 hp (270 kw)
Gear – Reverse 1st 309 hp (230.5 kw)
Gear – Reverse 2nd 309 hp (230.5 kw)
Gear – Reverse 3rd-6th 315 hp (234.9 kw)

Variable Power Tier 4 Final/Stage Iv/Japan 2014 (Tier 4 Final), Tier 3/Stage Iiia/Japan 2006 (Tier 3) Equivalent Or Tier 2/Stage Ii/Japan 2001 (Tier 2) Equivalent Emission Standards – Net

Gear – Forward 1st 304 hp (226.7 kw)
Gear – Forward 2nd 304 hp (226.7 kw)
Gear – Forward 3rd 311 hp (232 kw)
Gear – Forward 4th 321 hp (239.4 kw)
Gear – Forward 5th 327 hp (243.9 kw)
Gear – Forward 6th 337 hp (251.4 kw)
Gear – Forward 7th 342 hp (255.1 kw)
Gear – Forward 8th 357 hp (266.3 kw)
Gear – Reverse 1st 304 hp (226.7 kw)
Gear – Reverse 2nd 304 hp (226.7 kw)
Gear – Reverse 3rd-6th 311 hp (232 kw)

Weights Tier 4 Final/Stage Iv/Japan 2014 (Tier 4 Final)*

Gross Vehicle Weight – Maximum Tested – Total 84877 lb (38499.6 kg)
Gross Vehicle Weight – Typically Equipped – Front Axle 20494 lb (9296 kg)
Gross Vehicle Weight – Maximum Tested – Front Axle 26125 lb (11850.2 kg)
Gross Vehicle Weight – Base** – Rear Axle 52461 lb (23796 kg)
Gross Vehicle Weight – Typically Equipped – Total 74324 lb (33712.9 kg)
Gross Vehicle Weight – Base** – Front Axle 19837 lb (8998 kg)
Gross Vehicle Weight – Maximum Tested – Rear Axle 58753 lb (26650 kg)
Gross Vehicle Weight – Typically Equipped – Rear Axle 53830 lb (24416.9 kg)
Gross Vehicle Weight – Base** – Total 72298 lb (32793.9 kg)
Note (1) *No Tier 4 Final/Stage IV/Japan 2014 (Tier 4 Final) emission engine: subtract 150 kg (331 lb) from rear axle wt. & total wt.
Note (2) **Base operating weight calculated on standard machine configuration with 23.5R25 tires, full fuel tank operator and rops cab.
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