The document is a request for bids from the City of Durango for a portable hydraulic power unit. The power unit should be a diesel/hydraulic, single axle, trailer-mounted unit with a diesel engine, 10-hour fuel reservoir, and hydraulic system with 50' long work hoses. It should be capable of producing a minimum of 40 GPM hydraulic flow at 2,000 PSI. The unit should include a suction strainer, hydraulic pump, control valves, hydraulic oil cooler, and return oil filter. It should be suitable for environmental conditions ranging from 0 degrees F to +110 degrees F and be able to withstand rain, snow, hail, wind, and intense sunlight. The bids should be submitted by September 16, 2003, and late bids will not be considered. The manufacturer should have supplied a similar power unit to at least five different locations. The document also includes specifications for the trailer frame, engine drive system, and hydraulic system. The City of Durango reserves the right to reject any bids and to accept any portion of the bid if deemed in their best interest.