User manual CATERPILLAR 374D L BROCHURE

[. . . ] The main pump flow has increased 10 percent to provide shorter cycle times. The main implement pressure has been increased 9 percent. This also provides shorter cycle times with higher digging forces, increased bucket fill factors. Stick cylinder diameter for mass and reach configurations has been increased along with the bucket cylinder diameter on the reach stick. [. . . ] The Duo-Cone seal protects the moving parts in the carrier roller from water and dirt, and makes lubrication maintenance-free. 8 Front Linkage Front Linkage Designed for flexibility and high productivity Cat excavator booms and sticks are built for performance and long service life. · · Castings and forgings are used at high stress areas such as boom nose, boom foot, boom cylinder and stick foot. All booms and sticks are stress-relieved for optimal life and durability, while minimizing weight for improved performance. All booms and sticks are ultrasonic inspected. · Bucket Linkage Two bucket linkages are available for the 374D L. Both linkages are available with or without a lifting eye on the power link. · · The VB2 bucket linkage is for use with the reach sticks and VB2-family buckets The WB2 bucket linkage is for use with the mass sticks and WB2-family buckets Boom Construction 374D L booms feature a large cross-section to improve strength and reduce weight. Baffle plates reinforce the boom interior for higher rigidity. Booms are designed for strength and maximum payload. Stick Construction Sticks are made of high-tensile strength steel in a boxsection design, making them strong and light. All sticks are reinforced with a thick baffle plate for added rigidity. Work tools can be mounted directly to the machine or a quick coupler can be added, making it quick and easy to release one work tool and pick up another. Couplers Caterpillar offers two quick coupler styles: dedicated and pin grabber. Each allows quick tool changes. Center-LockTM Pin Grabber Coupler Center-Lock is the Caterpillar pin grabber style coupler and features a patent pending locking system. A highly visible secondary lock clearly shows the operator when the coupler is engaged or disengaged from the bucket or work tool. Work Tools An extensive range of Cat Work Tools for the 374D L includes buckets, hammers, grapples, shears, multi-processors and rippers. Each are designed to optimize the versatility and performance of your machine. Cat Work Tools and couplers are ready to work in a variety of applications, such as site and structure demolition, debris clean-up, truck loading, scrap processing, breaking road surfaces and bed rock. Hydraulic Kits Caterpillar offers field-installed hydraulic kits designed to simplify the process of ordering and installing the right kit. Modular kit designs integrate Cat Work Tools with Cat Hydraulic Excavators. Hoses are pre-made, tubes are pre-bent and pre-painted and there are comprehensive instructions. 11 Environment Emissions 374D L meets a wide range of environmental requirements ACERT® Technology is a differentiated technology that reduces emissions at the point of combustion. The technology capitalizes on proven Caterpillar leadership in three core engine systems: fuel, air and electronics. Electro Magnetic Compliance The 374D L meets the following EMC (Electro Magnetic Compliance) requirements: · · · ISO 13766 Earth Moving Machinery ­ Electromagnetic compliance EU Directive 89/336/EEC Aus EMC Framework Fluid Management Several serviceability elements are designed into the 374D L to limit fluid spillage while performing routine maintenance. Ecology Drains Ecology drains are provided for the fuel and hydraulic tanks, allowing fluids to be captured in a container when draining the tanks. 12 Service and Maintenance Service Intervals Long service intervals reduce maintenance costs. Engine oil, oil filter and fuel filters are at 500 hours. Fast, easy service has been designed into the 374D L Oil Sample and Pressure Ports Oil sample and pressure ports provide easy checking of machine condition and are standard on every machine. Hydraulic Capsule Filters The return filters or capsule filters for the hydraulic system are located beside the hydraulic tank. The filter elements are removable without spilling hydraulic oil. Service Points Service points are centrally located with easy access to facilitate routine maintenance. Pilot Hydraulic System Filter Pilot hydraulic system filter keeps contaminants from the pilot system and is located in the pump compartment. Remote Greasing Block A concentrated remote greasing block on the boom delivers grease to hard-to-reach locations. Radial Seal Cleaner Radial seal main air cleaner with precleaner has a doublelayered filter element for more efficient filtration. No tools are required to change the element. Fuel-Water Separator The water separator removes water from fuel, even when under pressure, and the water level can be monitored in the cab. 13 Complete Customer Support Product Support Cat dealer services help you operate longer with lower costs Cat dealers utilize a worldwide computer parts network to minimize machine downtime. Save money with Cat remanufactured components. Machine Selection Make detailed comparisons of machines you are considering. What are job requirements and machine attachments? [. . . ] They do not exceed a stability ratio of 1. 25. Bucket weights include General Duty tips. 1800 kg/m3 (3, 000 lb/yd3) or greater 1500 kg/m3 (2, 500 lb/yd3) 1200 kg/m3 (2, 000 lb/yd3) Not Recommended 22 374D L Standard Equipment Standard equipment may vary. Consult your Cat dealer for details. ELECTRICAL Alternator ­ 75 ampere Lights Cab interior Cab lights, halogen, time delay Boom lights, halogen Signal/warning horn ENGINE/POWER TRAIN Automatic engine speed control Automatic swing parking brake Automatic travel parking brakes Cat® C15 with ACERT® Technology Altitude capability to 2300 m (7, 500 ft) Electric fuel priming pump High ambient cooling capability Side-by-side cooling system with separately mounted AC condenser and variable speed fan Two speed travel Water separator, with level indicator, for fuel line GUARDS Heavy duty bottom guards on upper frame Heavy duty swivel guard on undercarriage Heavy duty travel motor guards on undercarriage Track guiding guards, center section OPERATOR STATION Air conditioner, heater and defroster with automatic climate control Ashtray and 24 volt lighter Beverage/cup holder Coat hook Console mounted electronic type joysticks with adjustable gain and response Floor mat Instrument panel and gauges with full color graphical display Literature compartment Neutral lever (lock out) for all controls Positive filtered ventilation Pressurized cab Retractable seat belt 75 mm (3") width Sunshade for windshield and skylight Travel control pedals with removable hand levers Windshield wipers and washers (upper and lower) UNDERCARRIAGE Double grouser 900 mm (35") Grease lubricated track Hydraulic track adjusters Long, variable gauge Steps ­ four OTHER STANDARD EQUIPMENT Auxiliary hydraulic valve for hydro-mechanical tools Caterpillar one key security system with locks for doors, cab and fuel cap Cat walks ­ left side and right side Cross-roller type swing bearing Drive for auxiliary pump Hand control pattern changer Mirrors ­ left and right S·O·SSM quick sampling valves for engine oil and hydraulic oil Steel firewall between engine and hydraulic pumps Product Link 23 374D L Optional Equipment Optional equipment may vary. Consult your Cat dealer for details. FRONT LINKAGE Booms Mass excavation 7. 0 m (23'0") with two working lights Reach 7. 8 m (25'7") with two working lights Sticks M 2. 57WB (8'5") for mass boom M 3. 0WB (9'10") for mass boom R2. 84VB (9'4") for reach boom R3. 6VB (11'10") for reach boom R4. 15VB (13'7") for reach boom R4. 67VB (15'4") for reach boom Bucket Linkages VB2-family for VB2 sticks (available with or without lifting eye) WB2-family for WB2 sticks (available with or without lifting eye) Buckets ­ see chart Tips, sidecutters and edge protectors TRACK Double grouser 650 mm (26") Double grouser 750 mm (30") Double grouser 900 mm (35") GUARDS FOGS (Falling Object Guard System) including overhead and windshield guards Track guiding guards ­ Full length ­ Center section Vandal guards for windshield Wire mesh screen for windshield AUXILIARY CONTROLS AND LINES Basic control arrangements Single action ­ one-way high pressure for hammer application Combined function ­ one-way high pressure circuit for hammer application function for one-way or two-way high pressure. 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