1. Scope. Trailers must be the most current advertised production model as modified per specifications and approved by Mn/DOT furnished with all standard equipment advertised whether or not specifically called for here except where the item is replaced by optional over standard equipment or conflicting equipment is specified. The unit must be complete with all equipment required and ready for immediate operation to function as listed below and the unit must meet applicable State and Federal codes and standards. 2. Trailer Requirements. 2.1. Trailer capacity to be at highway speed. 2.2. Trailer to be a maximum width of 8'6" wide (where applicable). 2.3. One complete set of parts and service manuals must be included for each trailerordered. 2.4. Manufacturer's standard color acceptable, paint must be lead free. 2.5. Trailer Plug electrical connector is to be 7-pin, Round, wired to match MnDOT’s spec. (See Exhibit E). Or MnDOT may purchase a RV Plug wired to the Industry Standard wiring. 2.6. MnDOT will only purchase trailers that meet the following lighting and wiring specifications (See Exhibit E): • Trailer must meet or exceed all current Federal Motor Carrier Safety Regulations 393.9 thru393.33. • Trailer cord plug must meet SAE spec. J560 and be wired directly to trailer cord. • Plug to be wired as follows if a 7 Pin with Round Pins (Only other plug that will be excepted will be a RV plug that is wired to industry standard wiring): White – Ground return to towing vehicle Black – Electric brake controller – or not utilized if trailer has air, hydraulic or no brakes Yellow – Left turn signal and hazard lamps (w/brake – *not required) Red – Stop lamps and antilock device Green – Right turn signal and hazard lamps (w/brake – *not required) Brown – Clearance, marker, and taillights Blue – If air Brake – Continuous ABS power If electric Brake – Ign. controlled B+ for break-away battery charge 2.7. No trailer cord adaptors will be accepted. 2.8. Trailer cord to be wired to a weatherproof, 7-terminal junction block (Waytek part #47290 or MnDOT approved equal). 2.9. All MnDOT trailer light wiring (including ground wiring) must be routed to a weather tight junction block and using compression fittings of the correct size for the cable being used. The box should be located under the bed behind the tongue area. 2.10. Wire splices will be soldered and have heat shrink connectors or heat shrink covering with glue or done with heat shrink butt connectors that have been heated and shrunk to wire or soldered and have heatshrink that has been shrunk to wire. 2.11. No wire nuts, closed end connectors or self-stripping displacement connectors (i.e. Scotch Loks) will be accepted. 2.12. All lights must be LED. 2.13. Stop/Turn/Tail lighting must be 4” round lights in rubber grommets or 3”x 7” oval lights in rubber grommets or MnDOT approved equal. Clearance and Marker lights must be 2” round lights in rubber grommets or MnDOT approved equal. 2.14. For MnDOT any trailer that need brakes must have brakes on all axles. 2.15. The equipment is required to pass a Commercial Vehicle Inspection (CVI) by a licensed MnDOT commercial vehicle inspector before payment will be made. If the equipment cannot pass the CVI from a licensed inspector, the contractor will be contacted to pick up the equipment and make necessary repairs so the equipment will pass a CVI. The Contractor will then return equipment in a condition that will pass a Commercial Vehicle Inspection. The pickup, delivery, and repairs to the equipment to be at the contractor’s expanse.
