User manual CATERPILLAR 623G BROCHURE

[. . . ] 623G Wheel Tractor Scraper ® Engine Tractor Engine Net Power Scraper Bowl Heaped Capacity Rated Load Weights Total Operating ­ empty Cat® C15 with ACERT ® technology 246/272 kW 330/365 hp 17. 5 m3 25 000 kg 37 435 kg 23 yd3 55, 115 lb 82, 530 lb 623G Wheel Tractor Scraper Responsible, productive earthmoving machines, built to last. Power Train ­ Engine Electronically controlled Caterpillar engines with ACERT technology, modular radiator with 9 fins per inch, and an Electronic Control Module maximizes power to the cutting edge and exceptional haul road speed. 4 ® Power Train ­ Transmission Planetary powershift transmission delivers excellent load capability. Redesigned front and rear axles accommodate wider brake shoes and drums. The neutral coast inhibitor and programmable top gear reduce wear while increasing machine performance. [. . . ] The electrical system has been redesigned to utilize three electronic control modules (ECM) on the tractor instead of four. Electronic control module monitors air filter restriction and sends a warning message to the electronic monitoring system to alert the operator if the restriction exceeds the allowable limit. The ECM activates the ether injection system during engine cranking to enhance cold weather starting. At high altitudes the system automatically de-rates fuel delivery as a function of barometric pressure sensed by the system's atmospheric pressure sensor. The ECM automatically compensates for low alternator output at low idle to keep the batteries fully charged. Combined monitoring systems, easy access diagnostics and more durable components make routine maintenance and servicing simple and fast. Diagnostic codes are accessible through the EMS main display module, via the Electronic Technician (Cat ET). This offers a head start on problem solving, with a radio call often providing the service technician with the knowledge of which tools, troubleshooting guides, and possibly even replacement parts to bring to the machine. The Caterpillar EUI system has fewer moving parts than mechanical unit injection and requires few adjustments. ECM communicates with the monitoring system (EMS) to warn the operator when problems arise, reducing the potential for major damage from occurring. EUI engines have virtually no mechanically controlled parts to wear or adjust. These have been replaced by electronic controls, reducing maintenance costs and increasing machine availability. Requires less force to control the critical scraper functions and requires less lever travel. Grab handle/hand rest next to joystick controller so operator has a place to rest hand while on the haul and return roads. 1) Bowl (forward & back) 2) Ejector (side to side) 3) Thumb rocker switch · Apron position · Elevator direction, speed 4) Transmission Hold 5) Cushion Hitch 6) Trigger* (not shown here ­ is on front of joystick) · Auger (on/off) · Push-Pull (bail up/down) · Elevator (on/off, resume) * Standard open bowl does not have a trigger 1 (Down) 4 5 3 2 (Forward) 2 (Return) 1 (Up) Instrument Display Panel. Features a quad-gauge layout showing engine coolant temp, transmission/torque converter oil temp, fuel level, and system air pressure. Frequently used switches and indicator lights are on the instrument panel, and less frequently used switches on the overhead console. Engine Speed Lock Controller. Enhances operation during long haul cycles by allowing the operator to maintain a desired engine speed without maintaining pressure on the accelerator. Simplifies gear selection (1st, 2nd, Drive and Reverse) and allows operator-defined top gear control. Relocating the gear control to the rear increases operator legroom. 9 Structures Superior structural design and construction optimize performance and reliability. 1 2 3 4 5 6 7 8 Load cylinder Hitch castings Scraper gooseneck Nitrogen accumulators Orifice Oil from tractor hydraulic system Leveling valve Free floating pistons Cushion Hitch. The electronically actuated cushion hitch incorporates a parallelogram-type linkage for exceptional strength with nitrogen accumulators to deliver a smooth ride for enhanced operator comfort. · · · controlled oil flow dampens rebound oscillation leveling valve automatically centers piston in cylinder for all loads steel castings are used extensively to eliminate many welded joints and increase strength double-kingbolt design withstands high external forces and simplifies installation and removal 3 2 4 · 4 1 5 7 8 6 8 Nitrogen Accumulators. [. . . ] These plans can cover the entire machine, including attachments, to help protect the customer's investment. Your Cat dealer has videotapes, literature and other ideas to help you increase productivity, and Caterpillar offers certified operator training classes to help maximize the return on your machine investment. Talk to your dealer about the range of available maintenance services. Diagnostic programs such as S·O·SSM Analysis and Coolant Sampling and Technical Analysis help avoid unscheduled repairs. [. . . ]