Error 404--Not Found

From RFC 2068 Hypertext Transfer Protocol -- HTTP/1.1:

10.4.5 404 Not Found

The server has not found anything matching the Request-URI. No indication is given of whether the condition is temporary or permanent.

If the server does not wish to make this information available to the client, the status code 403 (Forbidden) can be used instead. The 410 (Gone) status code SHOULD be used if the server knows, through some internally configurable mechanism, that an old resource is permanently unavailable and has no forwarding address.

Error 404--Not Found

Error 404--Not Found

From RFC 2068 Hypertext Transfer Protocol -- HTTP/1.1:

10.4.5 404 Not Found

The server has not found anything matching the Request-URI. No indication is given of whether the condition is temporary or permanent.

If the server does not wish to make this information available to the client, the status code 403 (Forbidden) can be used instead. The 410 (Gone) status code SHOULD be used if the server knows, through some internally configurable mechanism, that an old resource is permanently unavailable and has no forwarding address.

Original Equipment

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Komatsu upgrades its Super Dozer


Komatsu Mining Systems' (KMS) D575A-3 Super Dozer offers 858 kW (1150 hp) at 1800 rpm, an operating mass of 152,600 kg (336,420 lb), and a blade capacity of 69 m3 (90 yd3).

Komatsu Mining Systems (KMS) is not alone in the industry with the thought that when it comes to crawler dozers, bigger is better. The company's D575 Super Dozer enables large volumes of material to be moved in applications including mountaintop removal, dragline preparation, and reclamation work. According to KMS, the Super Dozer is especially effective in hard rock and long push distances due in part to its large size.

KMS announced in late fall that it has added new features to the D575, with its nomenclature not being Super Duper Dozer, but the more sedate D575A-3 Super Dozer. Realizing that even with a huge machine, the operator still has a lot to do with productivity, the company focused first on the operator environment. KMS introduced a Palm Command Control System (PCCS) into the cab, with the PCCS joystick allowing the operator to work in a more relaxed, natural position with an armrest that swivels and travels with the operator seat.


The D575A-3 features a redesigned operator environment that includes a new seat and a Palm Command Control System (PCCS) that enables an operator to shift gears with his or her thumb. The PCCS is combined with an electric throttle dial and adjustable seats and armrests.

Transmission gear shifting is achieved with the thumb, without the operator removing his or her hand from resting on the PCCS joystick. The PCCS also provides programmable preset shift patterns with automatic downshifting to maximize fuel efficiency. The D575A-3 combines the PCCS with an electronic throttle dial, fully adjustable seats and armrests, and a pressurized cab to reduce operator fatigue and thus increase productivity.

The cab's seat features new fore and aft sliding rails for the reduction of joint-play and increased strength and rigidity. The pressurized cab prevents dust from entering the cab. To improve operator visibility during the return part of a cycle, the operator can adjust the seat 15° to the right. The transmission and steering column move with the seat.

The machine is equipped with a newly designed powertrain electronic control system that registers operator control movements and machine condition signals to electronically control the torque converter, transmission, steering clutches, and brakes. The electronic controlled modulation valve (ECMV) adjusts automatically each clutch engagement depending on travel conditions such as gear speed, revolution, and shifting pattern. When dozing and turning downhill, the ECMV automatically controls the steering clutches and brakes depending on the incline of the machine or degree of load, reducing counter-steering effects and providing safe, predictable machine responses and smooth dozing.

The upgraded Super Dozer from KMS uses a new powertrain electronic control system that registers operator-control and machine-condition signals from sensors to control accurately the torque converter, transmission, steering clutches, and brakes.
Click to enlarge

An electronic monitor with self-diagnostic functions provides continuous machine monitoring and displays machine operating conditions. It allows the operator to focus on work and the controls by only alerting him or her if there were the potential for serious problems. The electronics system display also aids the operator and the mechanic through the use of diagnostics codes.

The machine's lockup mode enables the system to engage automatically the torque converter lockup clutch for enhanced efficiency during long pushes. For a more efficient use of engine power, less fuel consumption, and faster cycle times, the system transmits all of the engine power directly to the transmission.

The engine oil change interval of the dozer has been extended to 500 hours. The undercarriage roller guards were reinforced to increase durability in hard, abrasive rock conditions. KMS also provided simpler hydraulic plumbing and longer-life hoses, seals, wiring harnesses, and connectors. The machine is powered by the Tier 1 compliant, SA12V170E turbocharged, aftercooled 860-kW (1150-hp) engine. The engine is mounted to the main frame with rubber cushions to minimize noise and vibration.


Ingersoll-Rand updates blast-hole rig


New options recently introduced on Ingersoll-Rand's DM-: include a central hydraulic test station for maintenance support ad an angle drilling dust hood for improved dust control.

Ingersoll-Rand's DM-L is a crawler-mounted, hydraulic top-head drive, multi-pass rotary blast-hole rig. The upgraded rig is designed specifically for production blast-hole drilling to depths of 55 m (180 ft) with a 9-m (30-ft) drill pipe change. An optional 10.7-m (35-ft) steel change is also available with various carousel capacities.

The machine's nominal hole size ranges from 152 to 270 mm (6 to 10.6 in). However, for down-hole drilling with optional high-pressure air, nominal hole size ranges from 150 to 250 mm (6 to 9.9 in).

The DM-L uses a diesel engine to drive the air-compressor and hydraulic system. The engine, compressor, and hydraulic pump drive are mounted on a "floating" subframe to maximize mechanical efficiency while minimizing drilling vibration and stresses. The operator controls the drill via instruments positioned so that he or she faces the drill table with visibility to the surrounding bench.

An excavator-type undercarriage incorporates a planetary gear system, which is driven by two hydraulic motors, each rated at 130 kW (175 hp). The machine's "walking-beam" system enables the rig to move over uneven ground without imposing excess stress on the main frame and drilling components. Both tracks are individually controlled and are hydraulically adjustable.

The one-piece cab is FOPS certified, thermally insulated, heated, pressurized, and sound rated to 80 dB(A). The cab also features an integrated air system with directional vents and tinted safety glass.


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Error 404--Not Found

Error 404--Not Found

From RFC 2068 Hypertext Transfer Protocol -- HTTP/1.1:

10.4.5 404 Not Found

The server has not found anything matching the Request-URI. No indication is given of whether the condition is temporary or permanent.

If the server does not wish to make this information available to the client, the status code 403 (Forbidden) can be used instead. The 410 (Gone) status code SHOULD be used if the server knows, through some internally configurable mechanism, that an old resource is permanently unavailable and has no forwarding address.