Ask for the original contact cargo systems at.
Cargo trailer door spring tension.
Down on the floor is a plug for the hole that you need to pull out.
The door is very hard to open but also hard to close.
The springs are under a lot of tension.
The the torsion spring legs are what allow for your gate ramp door hatch.
The system features a double drum and cable.
How to adjust the spring on a cargo trailer door.
When you put your wiring through connect.
Posted by anonymous on may 18 2012.
Rollup door spring tension.
The mounting bracket has two 3 8 holes that allow the installer to bolt the spring to the rear header.
Unit is completely assembled cables sold separately.
I recommend having a garage door company take a look at it to determine if anything can be done to fix the existing system or if a new system is needed.
And only applies to cargo systems and ramp heister spring assemblies.
Overhead mounted spring assists allow easier closure of trailer ramp doors.
Single spring 96 2 x 60 lbs.
This tension chart has been developed by cargo systems inc.
These springs are made up of round wire helically wound to make coils.
Recently our polar pj trailer hybrid snowmobile trailer polar sport enclosed trailer had a stuck door it would not pull open either it was frozen or ja.
The overhead ramp door spring system is designed for enclosed trailers.
8 and 8 5 wide 2 wheel 2 spring.
Ramp door spring assist overhead.
The cables could not be detached with the ramp door lowered because the springs would suddenly lose tension and they could break and that is very dangerous.
5 and 6 wide 1 wheel 1 spring.
Recommended enclosed trailer.
The springs used for trailer ramps doors hatches gates and lids are torsion springs.
Closest to the cargo door down low taped to the existing wiring is the plug connector for the trailer.
The ends of torsional springs are known as legs for the wire on the end coils sticks out as if it were a lever.
Sizes range from assists for 5 wide trailers to 8 5 wide trailers.
7 wide 2 wheel 1 spring.
We will advise you on proper placement of cable anchor bracket and number of turns for safe proper operation so spring is not over stressed.
