Trailer Ramp Door Spring Assist Adjustment

Press brake bend.

Trailer ramp door spring assist adjustment. Plus my spring itself has about 7 full winds on it even with the trailer door closed. The mounting bracket has two 3 8 holes that allow the installer to bolt the spring to the rear header. Single spring 96 2 x 60 lbs. The overhead ramp door spring system is designed for enclosed trailers.

Cables are wound on drum and 1 shaft is clamped with vise grips to prevent. The winding pucks face each other. You will find that design assistance here in this article. The system features a double drum and cable.

Sizes range from assists for 5 wide trailers to 8 5 wide trailers. Page 1 of 2 trailer ramp door torsion spring winding posted in trailer talk. 7 wide 2 wheel 1 spring. The ramp springs that we carry fit 1 1 2 inch diameter hinge pins and are designed for use with heavy duty steel ramps like those on equipment trailers or car haulers.

Again be very careful and have a helper with you. Ramp door spring assist overhead. 8 and 8 5 wide 2 wheel 2 spring. The door must be open during the adjusting process.

Unit is completely assembled cables sold separately. Since 1982 all metals supply in oroville ca has provided metal processed metal and industrial hardware to northern california repair shops and industry and manufacturing. When starting a new torsional trailer spring design you must know the following parameters. So the spring is under substantial tension at the adjuster collars always.

Have two new cables and know how they came off the drums. I have a 7 enclosed trailer with rear ramp door that has 2 torsion springs. Trailer ramp springs are heavy duty torsion springs which work as a lift assist to take the majority of weight off of the gate ramp lid. We ship over 35 000 pounds every day and offer a huge variety of material types shapes and fabrication hardware as well as the following processing services.

A typical horse trailer or utility trailer ramp uses 3 4 inch hinge pins and would require two ramp springs with a 3 4 inch inner diameter. 5 and 6 wide 1 wheel 1 spring. So my door had to be at least propped open almost 2 feet. All mounting hardware included except for mounting bolts.

You might also consider taking the trailer to someone who sells them for the adjustment. My trailer door is an easy 500 lbs and as i remember it has 5 turns on the springs.