1992 AGN NOV 17 I04 - Laserfiche WebLink

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TOOLS: Furnish all special tools, other than common hand and shop tools, necessary to disassemble, service, repair and adjust the equipment. These shall be properly packed, labeled and stored where directed by the Engineer. ATTACHMENT HARDWARE: Attachment hardware to be furnished to attach the aerator/composter to a Case 580D Tractor/Backhoe. EQUIPMENT REQUIREMENTS: Power Unit: The power unit shall be an air cooled, diesel engine of at least 28 HP with electric start, alternator, fuel tank, fuel filter, air cleaner and 12 volt DC battery. Transmission• Power shall be transmitted to the aerator through a hydraulic (pump & motor combination) transmission. The transmission shall be rated to sufficiently use the available engine power to the aerator. The pump shall be not less than 1 cu. in displacement and the motor shall be at least 18 cu. in displacement. The transmission shall provide for bi-directional rotation (forward and reverse). The hydraulic motor shall be directly coupled to the aerator rotating unit by means of a flexible, elastomer type coupling to provide for misalignment take-up and vibration dampening. Chain drive to the aerator unit as a means of providing rotation power will not be allowed. Hydraulics, Primary and Auxiliary: The primary transmission and auxiliary circuit pump shall be open center, open loop type system capable of supplying at least 15.4 GPM at relief setting of 2250 PSI. It shall provide, in addition to implement drive, tilting functions. The hydraulic reservoir shall be sealed type with 5 lbs. atmospheric charge and internal outlet 100 mesh screens. Electrical System: The fused electrical system shall have a 12 volt negative ground system with charging alternator, a 12 volt starter, 7L battery with minimum CID power rating of 155 amps, instruments, or lights to monitor engine low oil pressure.