Attachment 0001-MCAAP MKIV Tamper.docx

ATTACHMENT 0001

Purchase Description for Harsco Mark IV Production/Switch Tamper

GENERAL: Mark IV Switch/Production Tamper with Jupiter distributed input/output control system and with System V software. The machine has switch lift and line capability, a 24-volt electrical system, and is powered by a 6-cylinder, Tier IV diesel engine. The standard machine will be equipped with single reference lining with one double barrel receiver. Machine must be new, 2024 model or newer, not remanufactured. Shipping to MCAAP and setup is included.

PHYSICAL DATA:

1,320” With the folding reference system completely deployed for work

INCLUDED FEATURES:

· Enclosed Cab with Hydraulic Driven Air Conditioner

· Bullet Projectors

· Tinted Safety Glass Windshield and Wipers

· Operator’s Seat

· Two-Position Telescopic Buggy

· Air Horn

· Electric Emergency Hydraulic Pump

· Fire Extinguisher (20 lbs)

· LED Work and Travel Lights

· Speed Indicator

· LED Brake and Marker Lights

· Mainframe Toolboxes

· Vandalism Protection for Monitor

· Derail Protection

· Automatic Guide Rod and Combo Clamp Oilers

· Cab Toolbox

· Flip-Down Mount Amber Strobe Light

· First Aid Kit

· Jump Seat for Two Secure Rider Positions

· West Coast Mirrors

· High Pressure Hydraulic Filters (P1 & P2 only)

· Motion Back-Up Alarm

· Mobile Asset Reporting System (MARS)

· Forward Facing Camera

· Workhead Grease Manifold

FRAME: High strength box beam welded steel construction. Computer designed and analyzed for stress and deflection. The boxed beam type frame is welded in fixtures to assure accurate fits and high quality welds.

WHEELS & AXLES: 28” (711 mm) diameter single-wear solid steel wheels mounted on heavy duty solid railroad type axles.

SUSPENSION: Trunnion mounted front axle. Fixed rear axle is fitted with elastomeric suspension springs.

DRIVE TRAIN: Each axle is fitted with a two-speed gearbox directly driven by a proportionally controlled variable displacement drive motor providing full time four-wheel drive with automatic speed control. The low gear is used in work mode and the high gear is used in travel mode. The variable displacement motors provide high torque for starting on grades and seamless transition through travel speeds up to 30 mph (48 kph). Full time 4-wheel drive is a standard feature in work and travel.

BRAKES: Air operated, tread type brakes feature high friction, composition shoe acting on each wheel. Spring applied, air released secondary brake operation provides automatic brake actuation in case of air pressure loss. This spring applied brake also functions as a parking brake.

ENGINE: Tier IV Final Certified, 6 cylinder, 6.7 liter turbocharged diesel that develops 250 BHP @ 2200 rpm (BHP rating may be adjusted to optimize Tier IV Performance).

CAB: The large, fully enclosed and climatized rear cab is accessible from either side of the machine via a rear platform and rear entry door. The cab provides excellent visibility in work and travel.

ELECTRICAL SYSTEM: 24 VDC with a 175 amp alternator.

HYDRAULIC SYSTEM: Two variable displacement piston pumps and 7 fixed displacement gear pumps. Hydraulic solenoid valves are 24 volt.

AIR SYSTEM: The engine mounted air compressor can produce up to 28 SCFM depending on speed and turbo boost pressure. The nominal operating pressure is 100 psi. The system includes a 3 cubic foot reservoir with ASME certification.

HYDRAULIC TANK CAPACITY: 696.5 liters (184 gallons).

FUEL TANK CAPACITY: 700 liters (185 gallons).

TRAVEL SPEED: 30 mph (48 kph) on level track.

CONTROL SYSTEM: The I/O control system will provide effective operator interface for computer-controlled applications managing automatic ramping, super elevation, zeroing of references and continuous cross level monitoring. Ergonomic operator control will be provided through arm panel keypads, joysticks, a keyboard, printer and 17-inch LCD color monitor.

COMBO CLAMP SYSTEM: The Combo Clamp multi-purpose lifting and lining assembly is capable of clamping and jacking the track in both production and switch tamping modes. Unit lifts from the ball of the rail during production work and can lift as required from either the ball or base of the rail with the same clamp in switch tamping. Clamping pressure is adjustable from the cab.

LEVELLING SYSTEM: The leveling system utilizes an infrared light source, 2 receivers, and a shadowboard to form a three-point reference system. An Inclinometer on the receiver buggy measures track crosslevel. Automatic ramp-in and ramp-out capabilities and automatic correction of lift and crosslevel are featured.

LINING SYSTEM: The lining system provides automatic “best fit” of curves with the ability to easily adjust the fits and print out curve data and graphs. The system is based on pre-plotting of the curve either by the tamper or any other source and utilization of this alignment data to program the correction of the track prior to performing corrections. The current position of the track, the corrected alignment, the anticipated "throws" of the track, the time, data and track position can be plotted on board the machine or viewed on the operator's display screen. The machine control processor will perform an analysis of this curve data and generate a best correction of the curve for consideration. If not acceptable, this can be manually modified by “rubber-banding” to the desired position. The graphic output of the system highlights, using colors, the various on-screen information.

TAMPING SYSTEM: The machine will be equipped with four (4) heavy duty hydro mechanical vibrators which drive sixteen (16) tamping tools. The hydraulically driven vibrators operate at 3000 V.P.M. (50 Hz) and develop a positive tool displacement of 3/8 inch (9.5 mm). Workheads feature lateral traverse extension to enable tamping of a switch. Tamping of unevenly spaced or skewed ties is simplified by manually adjustable tamping tool positions. Tamping tools for individual workheads can be positioned closer together (squeezed in) prior to the work cycle, allowing insertion in areas of tight tie spacing. Workhead depth can be varied from within the cab using operator defined settings on the pop-out workhead panel. This panel includes current workhead position according to the workhead transducer along with the upper (standby) position and lower (squeeze) position for each workhead. This increases productivity by automatically returning the workheads to a lower standby position when indexing during production runs (production mode), and to a higher position when moving workheads through a switch (switch mode). Tamps per cycle can be individually set for each workhead. This can be an advantage when changing cross level in a curve by a large amount where the lift is minimal on one side and double tamping that side may be undesirable.

The workhead squeeze pressure can be graphically monitored during tamping, allowing the operator to discern tamping quality and the potential need for additional tamps per cycle due to varied ballast conditions. Squeeze pressure setting is adjusted with the computer from the operator’s position.

OPTIONAL EQUIPMENT:

Tie Finder Laser Alignment System (solar powered) Callisto ProTamp Track Geometry System Surface Fit (Record and Line) Production Reporting Dual Reference Lining with Double Barrel Receivers High Pressure Hydraulic Filters Radio Power Kit – 15 AMP Zero Buggy Kit

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