Motor Grader
20Pages

Cat > ή 3126B DITA ATAAC VHP Weights Base Power (all gears)93 kW125 hp Gross Vehicle Weight - base12 650 kg27,880 lb Variable Horsepower Arrangement front axle3611 kg7959 lb - gears 1-3 93 kW125 hp rear axle9039 kg19,921 lb - gears 4-8 104 kW140 hp Moldboard Blade Width3658 mm12 ft >

pg. 4 pg. 5 pg. 6 Engine Power Train Hydraulics The Cat 3126B DITA ATAAC isdesigned to handle the tough loads. Variable Horsepower matches torque curves to the gear to maximize response, power, and efficiency. Low fuel consumption reduces operating costs and reduces environmental impact. The power shift transmission takesfulladvantage of the powerful 3126B engine. Variable Horsepower uses specific torque curves for each gear range for optimum performance. Dualair system and multi-disc oil brakes assure reliable braking control. The load-sensing hydraulic systemlowers power consumption and...

✔ pg. 9 Drawbar, Circle, Moldboard pg. 7 Structures Serviceability Flexible moldboard positioning andalong wheelbase improve material handling. Rugged construction and replaceable wear parts minimize operation costs. The 120H frame is designed and builttoexceed the expectations of the customer. pg. 8 Caterpillar > re-engineered inspectionand service points, grouping them into a convenient left-hand side, ground level Αservice center. Ground level fueling and extended engine and hydraulic oil change intervals help minimize downtime. Customer Support Your Cat dealer offers a range ofservices...

Emissions Compliant. The 120H hasreduced NOx, hydrocarbon, and particulate emissions. The Cat 3126B meets or exceeds all U.S. EPA Tier 2 and EU Stage II emissions control standards worldwide. Caterpillar Engine Oil. Improved Torque. Power curvescustomized for the 120H increase peak torque for higher ground speeds and enhanced productivity. Rimpull has been increased in all gears for greater productivity. It is formulatedto optimize engine life and performance and is strongly recommended for use in Cat diesel engines. The engine oil change interval is increased to 500 hours. Hydraulic Demand...

Dual Air Tanks. Supply braking capacityto each side of the machine. This system ensures secondary braking capability in the event a failure occurs in a single brake line. The dual air system also has a large reserve for stalled-engine braking. Inching Pedal. Delivers precise controlof machine movements in any gear withlow pedal effort and excellent modulation, critical in close-quarter work or finish grading. A new pedal design and location provides outstanding modulation and operator comfort. Electronic Overspeed Protection. Thetransmission control upshifts the transmission to relieve...

Optional Hydraulic Lockout. Independent Oil Supply. Heavy Duty XT Hose. Mechanically locks all moldboard, machine, and attachment control levers during machine roading. This prevents implements from being accidentally engaged when the motor grader is travelling down the road. Caterpillar hosetechnology allows high pressures for maximum power and reduced downtime, and intelligent routing minimizes exposure to damage. Large separatehydraulic oil supply prevents cross- contamination and provides proper oil cooling, which reduces heat build-up and extends component life. Blade Float. Blade...

Drawbar Construction. Blade Lift Accumulators. The Y-framedrawbar is constructed of two solid beams for high strength and optimum durability, as well as precise blading control. These optionalblade lift accumulators absorb vertical shocks encountered when the moldboard contacts immovable objects. This option is especially useful in rough grading and rocky areas. Circle Drive Slip Clutch. The standardcircle drive slip clutch protects the drawbar, circle and moldboard from shock loads when the blade encounters immovable objects. It also reduces the possibility of the grader making abrupt...

Front Frame. Continuous top and bottomplate construction provides consistency and strength. The flanged box section design removes welds from high stress areas, improving reliability and durability, and increasing resale values for the customer. Rear Frame. Rear frame has two box-sectioned channels integral with fully welded differential case for a solid working platform. > 1 Integrated bumper; 2 Box-sectioned channels; 3 Fully welded differential Integrated Bumper. The integratedbumper ties the rear frame together into a cohesive unit, to handle the loads possible with the new 3126B power...

Radiator Cleanout Access. Radiatorclean-out access gives the operator the ability to clear away debris and other materials that build up around the radiator. This ensures that the radiator functions properly keeping the engine cool and increasing component life. Service Center. Gathering many of thefrequently serviced items into a Service Centerђ on the left side greatly improves access, and helps ensure proper maintenance and inspection routines, The result is better machine availability and lower operating costs. Large hinged doors provide easyaccess to the adjacent engine and maintenance...

Fresh Air Filters. Located above eachcab door for quick replacement. Optional 12V Power Port. Available foruse with computers, cellular phones or other electronic equipment. Exceptional Visibility. The narrowoperators console provides good forward visibility. Large side windows allow a clear view of the moldboard heel and tandem tires. A wide rear window and tapered engine hood provide a good view to the rear of the machine. The position of the air dryer and air cleaner, and the alignment the precleaner and muffler, provides good visibility to the rear of the machine. Operators can work...

Ecology Drains. Make regularmaintenance easier and help prevent spills when changing fluids. Ozone Protection. To help protect theearths ozone layer, air-conditioning units use a refrigerant free of chloroflourocarbons (CFCs). Dry Machine. Extended Oil Change Interval. Lubricant fill pointsandfilters are designed to minimize spillage. O-ring face seals, Cat XT hose and Cat hydraulic cylinders protect against leaks. Operate afull 500 hours between engine oil and filter changes, and 4000 hours between hydraulic oil changes. This reduces machine downtime and operating expense, and helps...