Trailer Door Spring Assist Adjustment

The door must be open during the adjusting process.

Trailer door spring assist adjustment.

The system features a double drum and cable. 5 and 6 wide 1 wheel 1 spring. 8 and 8 5 wide 2 wheel 2 spring. Click for more info and reviews of this m 3 and associates enclosed trailer parts.

All mounting hardware included except for mounting bolts. 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. Gorilla lift 2 sided tailgate lift assist easily raise and lower your tailgate with one hand model 40101042gs. The overhead ramp door spring system is designed for enclosed trailers.

My trailer door is an easy 500 lbs and as i remember it has 5 turns on the springs. It wasn t that hard then again it wasn t that easy either. X haibei 2 pcs trailer spring latch barrel bolt spring loaded latch heavy duty zinc for. 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.

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. Get it as soon as fri oct 9. Spring type hinges should not be used with m 3 spring assists as they alter the physics of the door and you will not achieve satisfactory lift.

You will find that design assistance here in this article. Single spring 96 2 x 60 lbs. Research your door before you try this. The mounting bracket has two 3 8 holes that allow the installer to bolt the spring to the rear header.

Ramp door hinge style m 3 spring assist systems are designed to be used on doors with pipe style hinges attaching the ramp door to the trailer frame. Lippert components 173067 ramp door spring 11 coil 1 pack. Be warned that this is a potentially dangerous job. 4 5 out of 5 stars 42.

You might also consider taking the trailer to someone who sells them for the adjustment. Sizes range from assists for 5 wide trailers to 8 5 wide trailers. Again be very careful and have a helper with you. When starting a new torsional trailer spring design you must know the following parameters.