PLOW FRONT. 2.1. The front shall consist of all necessary cheek plates, push arms and frames required to properly mount, lift, carry, and operate both the plow and wing(s). The cheek plates shall be designed so that the installation will not require the removal of the steering boxes. Any hoses that might contact the cheek plates shall be protected with a section of double-braid hydraulic hose. The cheek plates shall be 5/8” thick plate steel designed to maintain integrity under high-speed plowing yet bend on severe impact without causing the truck frame to bend. A minimum of four 5/8” bolts per side shall be used to fasten the cheek plate to the truck frame and a minimum of four 5/8” bolts per side to fasten the plow front to the check plates. Shock absorbers shall remain functional. 2.2. The front must be constructed in such a manner as to permit the head frame and wing post to be tilted hydraulically forward without any free-fall. A chain system for lowering the plow frame is required, verify chain length with Central Garage. The plow front shall tilt far enough forward so the hood will not make contact when it is fully opened. All pin locations shall have replaceable steel bushings. Head frame and front wing post shall be easily removed for summer operations and include a male & female dust covers for the headlight harness and front hydraulic couplers. Provide and install an adequately sized D ring for balanced lifting of the plow front 2.3. The distance from the end of the truck frame to the center of the plow pin hole shall not be more than 15”. 2.4. Three (3) plow pin holes shall be spaced 4” on center with the bottom pin 16” from ground, providing two (2) position settings for the quick-connect couplings. 2.5. The left front bumperette shall have two 5/16” holes drilled for mounting the license plate. 2.6. The head frame shall have a bumper on the opposite side of the wing with enough length to protect that front fender. The bumper must be able to support at least 300 pounds. 2.7. The truck bumpers shall have brackets installed to permit mounting the bumper in place of the plow front when the front is removed for summer operations. Brackets shall be designed so that the bumpers may be interchanged between trucks and pinned into the plow frame. 2.8. The plow lift cylinder shall be at least 4”x10” with power up and down. Cylinder rod shall be Nitrided (alternate quotes for chrome cylinders may be considered). 2.9. The pin diameter for plow and head frame mount shall be 1-¼”. 2.10. Welded on the front of the head frame uprights, (one each side) a 5/8” round steel or rebar “U- bolt” design bracket 6” wide by 6” high shall be installed for storage of tire chains. 2.11. The plow front shall be designed so that when the plow lights are added, they shall be as close to 65” (center of light) as possible from the ground but no higher than 75”. Plow lights shall be LED. 2.12. All trucks shall be equipped with a heavy duty quick-lock, quick-disconnect for the front plow. Provide and install matching plow oscillating bar. See “WING” section for front wing tower requirements.
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Sources: Standard Contract, Contract Amendment