User manual CATERPILLAR MD6420 BROCHURE

[. . . ] The MD6420 is larger than the 563C, making it the most powerful and stable machine in the market. We Get It. You asked for a machine with. . . You asked, we answered. The "Voice of the Customer" drove the design of the completely new Cat® C Series wheel feller buncher. We heard your voice loud and clear at every stage of the machine's development. Lower Owning and Operating Costs Even with the more powerful Cat C7. 1 ACERTTM engine, field data and customer input have shown an improvement in fuel efficiency. You'll burn less fuel and get more power because of Caterpillar's advances in engine technology and machine design. This includes more power generated at lower rpms and an on-demand cooling fan that only spins when needed and, therefore, draws less engine power. ® Unprecedented Stability and Agility Place trees where you want with the unmatched cut and carry capability of the C Series. [. . . ] PowerDirect Plus provides better performance in all applications on both steep and flat ground. If you're carrying a tree in the head and backing up a hill, the system will focus full power to the drivetrain. On flat ground where drivetrain demand is lower, more power is available to the attachment and the oversized attachment pump pushes more flow to the saw. Saw recovery time is significantly faster compared to previous wheel feller bunchers. Control Valve and Pumps Multi-functioning, always an advantage for Cat wheel feller bunchers, is the result of a high performance control valve. In addition to field-testing, we put the control valve and hydraulic pumps through extensive lab "torture" tests that simulated the most brutal logging conditions and environment. The tests verified a significant increase in the service life of the control valve and pumps. Cylinder Seals Rigorous testing similar to the control valve and pumps and side-by-side testing against competitive cylinders was conducted on the new cylinder seal packages to ensure durability. 8 Filtration Dual spin-on hydraulic oil filters keep hydraulic oil clean, which is critical for machine health. Finding information is intuitive: · The home screen displays the condition of primary systems, such as fuel level, engine and hydraulic temperatures, and engine and saw rpms. Press the corresponding button along the bottom of the screen to get more detail on any item. As an example, under the hydraulic system selection, the two-speed gearbox oil level indicator is displayed. · If an engine or hydraulic problem occurs, the monitor will display an easy-to-understand text explanation, along with any applicable fault codes. · If a machine condition requires immediate action, a warning buzzer will sound to draw the operator's attention to the monitor. Less debris build-up means less time required for cleaning it out and better performance. The pressurized airflow keeps electronics, sensors and other key components cool during long workdays. Engine/Hydraulic Compartment The engine and hydraulics are located in a separate compartment at the rear of the machine. An electric reversing fan draws cool ambient air into the compartment. This forces hot air out of the engine compartment while pressurizing it, preventing debris from entering and keeping engine electronics and sensors cool. Cooling Compartment Removable rubber baffling separates the cooling system from the engine/hydraulic compartment. This prevents the cooling system from pulling hot air from the engine through the cooler, maximizing the cooler's efficiency. Aftertreatment Compartment The aftertreatment compartment, which contains the Cat Clean Emissions Module (CEM), is pressurized by airflow from the cooling package. As the air is pulled through the cooling package, the side screens provide resistance and some of the airflow enters the aftertreatment compartment and forces hot air out while preventing debris from entering the compartment. 13 Serviceability Easy ground level servicing to keep you safe The C Series is the first and only wheel feller buncher to be truly serviceable from ground level. This includes daily service checks, preventative maintenance, and emergency service. Engine/Hydraulic Compartment Large hinged doors at the rear of the machine, along with hinged doors on both sides and the bottom of the compartment, provide superior ground-level access to the engine, hydraulic pumps and key components, including: · · · · · · · · · · Fuel, air and oil filters Starter Drive belt Water pump Alternator AC compressor Engine oil drain Hydraulic hose connections Centralized bank of pressure test ports around the pumps Engine and pump drive oil level check Cooling Compartment Removable rubber baffling and a split side screen protect the cooling system while making it easy to access for servicing. A locking latch on the lower half of the side screen allows for quick and easy access for cleaning out debris. Aftertreatment Compartment The aftertreatment compartment has full three-sided access to the Cat Clean Emissions Module (CEM) optimizing service and cleaning access. Tilting Cab The tilting cab provides full access to the interior of the machine, where the two-speed gearbox and hydrostat are located. You can also access the hydraulic hoses and electrical harnesses where they enter the center hitch area. The tilting cab also improves access to clean the machine and remove the batteries. Fueling No more climbing up on the machine, dragging a fueling hose to fill the tank. The fuel tank is located behind the rear axle and the fill is at ground level. [. . . ] · Fewer parts and longer component life, less fuel and fluids, means less to replace and less to dispose. · Major structures and components are built to be rebuilt, reducing waste and replacement costs. 17 Attachments Work tool attachments to meet your needs New work tools have been developed to meet the increased capabilities of the C Series wheel feller bunchers, including the new SH-56B, the most versatile and balanced high capacity bunching saw in the market. At the heart of each saw attachment is Caterpillar's fieldproven and patented tapered saw shaft and bearing design. The tapered shaft supports the continual shock loads created in high cycle applications. [. . . ]