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The spring with the black cable drum should always be mounted to your LEFT, standing on the inside of the trailer looking out. This is very important for proper operation. Dual spring systems, like #ERS160D96, have a red-coned and a black-coned…
view full answer...To determine the correct weight springs you will need a scale to determine how much weight is on the door when it lays out on the ground. You will place the scale on the ground in the center of the landing path of the door edge. This will tell you…
view full answer...To test the weight of your ramp door, you will want to get the door all the way down to the ground and then on a scale of some kind (a bathroom scale can be used for this if it's the only thing available). This will be when the door…
view full answer...For a 200 lb trailer ramp door we have the Conventional Ramp Door Spring part #362SA8HD which would work great as it has a 230 lb capacity. You'd need to have a professional wind it for you but it would easily work great for a 200…
view full answer...Hey Scott you will need to get the width of your ramp as well as the weight of the ramp to pick out what you'd need. For example the part #M394FR is for 8 foot wide ramps and has a weight capacity of 185 lb. I attached a link to all of…
view full answer...Normally the trailer ramp springs like the #362SA5 attach to the inside of the top of a trailer door like the picture I attached shows. In the picture you can also see how it attaches to the ramp as well.
view full answer...When selecting ramp springs for a trailer ramp, you will want to know the diameter of your hinge pin and how much space you have available in the hinge. A typical horse trailer or utility trailer ramp uses 3/4 inch hinge pins and would require two…
view full answer...We have an 8 foot ramp door spring that has dual torsion springs like you asked about with the part #M394FR. This is the hand wound torsion style spring you mentioned.
view full answer...Installations for the Conventional Ramp Door Springs like part #ERS120D81 aren't things that we are really able to advise on since these need to be installed by someone who has previous experience or by a garage door company. You might…
view full answer...The Ramp Door Spring #M354FR is our closest setup for your cargo trailer door. This system is rated for a 120lb door so you will be able to add a Transition Plate #e32JR as well to your door which will make loading cargo using a dolly or hand truck…
view full answer...For your weight capacity and 6 foot 6 inch door what you can do is use the Conventional Ramp Door Spring for 7' Wide Enclosed Trailer - Single Spring - 150-lb Capacity #362SA7. This works for 43" to 79" wide…
view full answer...In order to properly weigh your door to figure out the correct spring you only need to find the weight when the ramp door is down. You do not need to remove the door to find this weight. You will need a scale in order to measure the weight, a…
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