354 CONS/LGCC, 3112 Broadway Ave Unit 5B, Eielson AFB, AK 99702-1887

12 -- DIESEL FILTRATION SYSTEM SOL 99Q0174 DUE 032999 POC Sra Daniel Fadely, 377-2443 E-MAIL: Contact 354 Contracting, william.pike@eielson.af.mil. Specification for vehicle diesel exhaust filtering device: The intent of these specification is to define a device, system, method, etc that will prevent vehicle diesel particulate (soot) being emitted from vehicles within an enclosed area. System Operation: The system shall remove all visible smoke from the exhaust from from an adjustable time period of 10 to 99 seconds after the vehicle starts. This is to provide ample time to start the vehicle and move away from the building. A mechanic or service person with common tools shall easily set the time of filter operation. The system shall also remove all visible smoke from the exhaust from the exhaust whenever the vehicle is in reverse gear. After the vehicle's transmission is shifted out of reverse gear the system will continue in the filter mode for the pre-set time period. This will provide ample time to back the vehicle into the building and shut it off. The system shall be completely automatic, not requiring any action by any personnel at any time, with the exception of "normal maintenance." However a manual override option shall be provided to allow full-time operation for service or special purposes. Normal functioning of the system will in no way be detrimental to the operation of the vehicle. The system shall protect the engine by automatically preventing itself from activating when backpressure Exceeds 1.5 psi. An indicator light on the cab dash shows that the filter requires changing. The filter shall be quick and easily replaceable and require no special tools. System Components: The system shall consist of a filter, a diverter unit and an electronic control module, all of which are completely self-contained on the vehicle. Therefore the system may be operated at any time, regardless of the vehicle's location. The filter shall be made of a porous ceramic material measuring 11.5 inches in diameter and 14 inches long, designed and manufactured specifically to filter soot from diesel exhaust for a minimum of 30 filter operation hours. The filter shall be encased in stainless steel with a high-temperature cushioning material between the ceramic and stainless steel. The filter is installed using four tire rods with hex nuts so that it can be removed with no special tools. The ceramic filter shall be capable of being regenerated indefinitely either locally or through the equipment provider or a special shipping container shall be provided for this purpose. The diverter unit shall be installed in the in the existing exhaust pipe and shall direct the engine exhaust either through the filter element or through the muffler. A double acting air cylinder controlled by an electrically activated, four ways, single solenoid valve, shall operate the diverter. The electronic control module, which drives the diverter unit, shall feature a circuit board housed in a small (5x6x8) metal enclosure. It shall be mounted either on the pump panel or in another convenient location on the vehicle. The circuit board holds the timer control where the duration of the filter cycle is set. The board also features a series of LED lights that monitor each function of the system. An hour meter mounted in the electronic control module is designed to be used as a guide to determine when a filter is nearing replacement. System installation shall be completed and tested at building 1206 Flightline Ave. Eielson AFB, Alaska. A training class will be conducted inconjunction with this purchase to provide 354 Transportation personnel training on the operation and maintenance requirements of the system. A written warranty will be provided to insure that the system is free from defects in materials and workmanship for at least a one- (1) year period from the date of installation. Suggested Source is "No Smoke" exhaust filtration by Ward Diesel Filter Systems Inc.***** ***** Posted 03/19/99 (W-SN310544). (0078)

Loren Data Corp. http://www.ld.com (SYN# 0160 19990323\12-0002.SOL)