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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 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 is at…
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...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 try…
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 trailer doors and has a 150…
view full answer...Hey Lou, so the install of the Conventional Ramp Door Spring part #362SA7218 is something that should be done by someone who has experience winding garage springs. The amount of turns or preload will be the amount that gives you the correct amount of…
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...The spring capacity of the torsion style ramps springs like the part #M394FR that you mentioned is how much lifting strength it is capable of if adjusted for it. This spring has a 185 lb capacity but could have a lower tension used if that's too…
view full answer...The cables with the Conventional Ramp Door Springs like part #M394FR are attached to the door via anchor brackets which are included with the kit. I have attached below the excerpt from the install instructions below which goes over the cable…
view full answer...We do offer cables alone for enclosed trailer ramp torsion springs. Part #CAB1-8CB150 is a pair of 150-inch cables. We also offer replacement right and left drums, parts #DRUM-M-3RH and #DRUM-M-3LH, respectively. The installation instructions for…
view full answer...Heavy duty ramp springs #RS16933RH and #RS16933LH install on the hinge of the ramp. I have included a picture of what this looks like for you. Not all trailers are exactly the same but this should give you a general idea of how the springs install.
view full answer...I checked with M-3 and when you are ready to wind the spring on the Enclosed Trailer Ramp Spring #ERS120D81 you will need to use two 1/2 inch diameter bars (of around 18 inches long). You will insert the first bar into the winding cone of the spring…
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