Caterpillar Performance Handbook, January 2017, SEBD0351-47

Equipment Relocation Safety Support

Highwall Mining System

● Methane Sensor —A methane sensor is mounted near the cutter drum. When the methane content in the air reaches the warning level, an automatic warning sig- nal attends the crew. When the methane level reaches a pre-set maximum level, a warning signal attends the crew, and all electric power to the cutter module is automatically disconnected (Except to the methane sensor itself). Settings depend on local regulations. ● Working safely at night is enhanced by a number of LED Flood lights, as well as LED platform and inte- rior lights. The platform and interior lights are backed- up by a battery system to stay on for up to 10 minutes after a power outage. ● Hydraulic Controls —Underground hydraulic valves are provided with flame proof solenoids. Parts and service support for the HW300 are never far away with the global Cat Dealer Network. You can count on our dealers’ skill and knowledge for qual- ity maintenance and high parts availability. Since the machine will be serviced on site, this requires a trained crew with a dedicated maintenance truck, stocked with essential spares and consumables for the machine. Your dealer is happy to discuss this and other support services options. Training Caterpillar can arrange operational and technical training which covers every aspect of the HW300Highwall Miner. Support Equipment The highwall miner has the following support equip- ment needs: 1. Two wheel loaders; one to load push beams during mining, one to manage the coal stock pile. 2. A stacker belt is recommended for managing the coal as it comes off the machine. 3. Equipment requirements for keeping the seam exposed will depend on the application. SUPPORT Product Support

EQUIPMENT RELOCATION Convenient Modularity for Quick Assembly For quick relocation over long distances, the Cat high- wall mining system can be taken apart in modules. Rapid disassembly and reassembly is facilitated by convenient hydraulic and electrical connectors, and all modules are sized for transport using regular public roads. Depending on local conditions, the system can also be transported between sites and without disassembly by heavy haul trucks. SAFETY Designed with Safety as the First Priority The Cat highwall mining system is engineered and equipped with a priority on safe operation; safety fea- tures include: ● Elevated Cab with Cameras — For a complete view of the highwall mining system and mining opera- tion, the FOPS certified operator cabin is elevated on the machine and three magnetic base cameras are provided whose positions can be easily and quickly adjusted. ● Above-ground Operation —Operation of the system is performed entirely on the surface with no crew mem- bers working underground. ● Small-crew Size — The highwall mining system only requires a three- to four-person crew for full operation. ● Remote Operation — In an emergency, the machine can be operated remotely using a laptop from as far away as 61 m (200 ft). ● Anchoring System —Two drills mounted on the front of the machine are used to drill into the pit floor up to 2.4 m (8 ft). High-strength pins are then inserted through the base frame into the pit floor to help stabi- lize the machine and to maintain its accurate position, even under tough pushing and pulling conditions.

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Edition 47 6-5