Semi Trailer jacks are used to prevent up-ending of semi trailers when they are not connected to a tractor during loading and unloading operations. When a fork truck is in the nose of the trailer, the trailer easily up-ends. Trailer stabilizing jacks are also used to level trailers parked on sloped ground and to prevent landing gear from sinking into a soft surface.
Vestil jacks are made from high strength steel construction. They have a flush type zerk fitting for lubricating ACME screw.
Meets OSHA regulations when used with wheel chocks. Finsih is Yellow Powder coat. All Vestil trailer jacks include a reflective collar for visibility at night.
Compliant with OSHA recommondations; OSHA's Powered industrial trucks standard, at 29 CFR 1910.178(k)(3), states that "[f]ixed jacks may be necessary to support a semi-trailer and prevent upending during loading or unloading when the trailer is not coupled to a tractor.