120H Motor Grader

aggmanstaff

November 13, 2007

The 120H blends productivity and durability to give you the best return on your investment. The Cat® 3126B engine, direct-drive power shift transmission and load-sensing hydraulics are perfectly balanced, working together to deliver top productivity in all applications.


 











































































































































































































































































































































































































































































































































































































































































































































































































































































































































Engine

Units:  US 


Base Power (all gears) Net


125 hp



VHP – gears 1-3 Net


125 hp



VHP – gears 4-8 Net


140 hp



Base Power (all gears) Gross


139 hp



VHP – gears 1-3 Gross


139 hp



VHP – gears 4-8 Gross


154 hp



Engine Model


Cat® 3126B DITA ATAAC VHP



Displacement


439 in3



Bore


4.3 in



Stroke


5 in



Speed @ rated power


2000 RPM



Number of cylinders


6



Derating altitude


10000 ft



Std – Fan speed – max


1210 RPM



Std – Fan speed – min


500 RPM



Std – Ambient Capability


117 ° F



Hi Ambient – Fan speed – max


1300 RPM



Hi Ambient – Fan speed – min


500 RPM



Hi Ambient Capability


122 ° F




Weights



Gross Vehicle Weight – base


27880 lb



Gross Vehicle Weight, max


37306 lb



Gross Vehicle Wt, max – front axle


11190 lb



Gross Vehicle Wt, max – rear axle


23116 lb



Gross Vehicle Wt, base – front axle


7959 lb



Gross Vehicle Wt, base – rear axle


19921 lb




Moldboard



Blade width


12 ft



Moldboard – height


24 in



Moldboard – thickness


.87 in



Arc radius


16.25 in



Throat clearance


4.7 in



Cutting edge – width


6 in



Cutting edge – thickness


.63 in



End Bit – width


6 in



End Bit – thickness


.63 in



Blade Pull – base GVW


17816 lb



Blade Pull – max GVW


23504 lb



Down Pressure – base GVW


14488 lb



Down Pressure – max GVW


20056 lb




Operating Specifications



Top Speed – Fwd.


26.5 mph



Top Speed – Rev.


20.9 mph



Turning radius, outside front tires


23.6 ft



Steering range – left/right


50°



Articulation angle – left/right


20°



Fwd. 1st


2.3 mph



Fwd. 2nd


3.1 mph



Fwd. 3rd


4.5 mph



Fwd. 4th


6.2 mph



Fwd. 5th


9.7 mph



Fwd. 6th


13.2 mph



Fwd. 7th


18.2 mph



Fwd. 8th


26.5 mph



Rev. 1st


1.8 mph



Rev. 2nd


3.4 mph



Rev. 3rd


4.9 mph



Rev. 4th


7.7 mph



Rev. 5th


14.4 mph



Rev. 6th


20.9 mph




Service Refill



Fuel Capacity


90 gal



Cooling system


10.4 gal



Hydraulic system – total


17.7 gal



Hydraulic system – tank


9.9 gal



Engine Oil


7.8 gal



Trans./Diff./Final Drives


12.2 gal



Tandem housing (each)


12.7 gal



Front wheel spindle bearing housing


.13 gal



Circle drive housing


1.8 gal




Power Train



Forward/Reverse Gears


8 fwd / 6 rev



Transmission


direct drive, power shift



Brakes – Service


air actuated, multiple oil disc



Brakes – Service, surface area


2595 in2



Brakes – Parking


air-actuated, multiple oil-disc



Brakes – Secondary


dual circuit




Hydraulic System



Circuit type


closed center load sense



Pump type


variable piston



Pump output


38 gal/min



Maximum system pressure


3500 psi



Reservoir tank capacity


10.04 gal



Standby Pressure


450 psi




Frame



Circle – diameter


60.2 in



Circle – blade beam thickness


1.2 in



Drawbar – height


5 in



Front-top/bottom plate – width


11 in



Front-top/bottom plate – thickness


.9 in



Front-side plates – width


9.3 in



Front-side plates – thickness


.4 in



Front-linear weights – min


90 lb/ft



Front-linear weights – max


115 lb/ft



Front-section modulus – min


99 in3



Front-section modulus – max


225 in3



Front axle – height to center


23.9 in



Front axle – wheel lean, left/right


18°



Front axle – total oscillation per side


32°




Blade Range



Circle centershift – right


24.7 in



Circle centershift – left


24.6 in



Moldboard sideshift – right


26 in



Moldboard sideshift – left


20.6 in



Maximum blade position angle


90°



Blade tip range – forward


40°



Blade tip range – backward




Maximum shoulder reach outside of tires – right


75.3 in



Maximum shoulder reach outside of tires – left


72.4 in



Maximum lift above ground


18 in



Maximum depth of cut


30.5 in




Ripper



Ripping depth, maximum


10.3 in



Ripper shank holders


5



Shank holder spacing – min


21 in



Penetration force


9566 lb



Pryout force


5020 lb



Machine length increase, beam raised


41.7 in




Scarifier



Front, straight: Working width


71 in



Front, straight: Scarfying depth, maximum


12.5 in



Front, straight: Scarifier shank holders


17



Front, straight: Scarifier shank holder spacing


4.38 in




Tandems



Height


17.2 in



Width


6.8 in



Sidewall thickness – inner


.55 in



Sidewall thickness – outer


.63 in



Drive chain pitch


1.75 in



Wheel axle spacing


59.5 in



Tandem oscillation – front up


15°



Tandem oscillation – front down


25°




Dimensions



Height – top of cab


122 in



Height – high profile cab


131 in



Height – no cab


121 in



Length – counterweight to ripper


396.2 in



Width – outside front tires


96.1 in



Length – front axle to mid tandem


233 in



Length – front tire to rear of machine


327.3 in



Length – front axle to moldboard


102.2 in



Length – between tandem axles


59.4 in



Width – outside rear tires


94.6 in



Width – tire center lines


80.9 in



Height – front axle center


23.4 in



Height to exhaust stack


123 in



Height to top of cylinders


115 in



Ground clearance at rear axle


13.8 in

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