2/27/2023 0 Comments Spring compressor tool![]() ![]() The point here is, there may be a special tool for working with the coils on your car, as there was with mine. The tool also makes the job unbelievably easy and convenient. Unloaded, these springs are about as long as my arm, and they require an extremely strong and straight compressor in order to work with them safely. For example, my W124 Mercedes employs extremely high tension front coil springs. ![]() This tool is recommended or required for many high-tension spring applications. The Klann-type compressor is a type of coil spring compressor that involves plates and a telescoping jack-shaft. I think that this type of compressor bears notice in this article, as it is used in several European autos. Follow the tool manufacturer's recommendations on lubricating the jack-shaft, and proper storage of the tool to avoid damage. As with the external compressor, make sure that the arms are evenly spaced, both around the spring and along the spring, before tightening. The compressor consists of a jack-shaft with two threaded arms that grasp the spring and pull towards each other as the jack shaft is tightened. Quite different than an external spring compressor, the internal compressor is used in situations where there is no obstruction to the center of the spring, and the tool can be successfully inserted and removed. Follow the tool manufacturer's recommendations on lubricating the threaded shafts of the clamps, and proper storage of the tool to avoid damage. A bend in the spring can load the clamps unevenly and cause damage or breakage to your equipment. It's important that the clamps be placed with even spacing both around the coil, and down the length of the coil so that the spring does not tend to bend in any direction while compressing. They hook onto the spring from the outside and are tightened down with wrenches to load the spring. An external coil spring compressor usually comes with two devices that resemble C-clamps. Always keep the ends of the spring pointed in a safe direction and away from people at all times.Įxternal spring compressors are generally used in a strut-type configuration where there may be a shaft or other obstruction running through the center of the spring. There are several videos online that demonstrate the extreme energy built up in a compressed spring - this is no matter to take lightly. ![]() Keeping a compressed coil spring laying around while working is extremely dangerous, as anything could happen to damage the compressor and allow the spring to come loose. Once the spring is safely removed from the vehicle, gently unload the spring and remove the compressor. The last thing you want is to learn the physics of a released spring the hard way. If the tool looks questionable, has cracks, rust, or gouges, or if the action of the threaded shaft is not smooth and uniform, do NOT use the tool. Safetyīefore we begin, I'd like to address a few notes about safety and tool maintenance. We'll take a look at the main types most of us will see while working on European autos. Not all coil springs are created equally, however, and different compressors are necessary for different types. This will allow the spring to be removed safely without risk of blasting out of it's mounts (if done properly). The main idea here is to draw the coils of the spring together tightly so that the preload from the suspension system is deferred to the compressor. This preload from other suspension components must be accounted for when removing coil springs from the suspension, and to this end, various types of coil spring compressors have been developed. These coils hold up hundreds of pounds of weight at each corner of the car, and as such are usually under a sizable load, even with the car's weight off of its wheels. This is the case any time you need to work on components that are loaded by the coil, such as a Macpherson strut, or control arm. ![]() Often while working on our automotive suspension systems, it becomes necessary to remove coil springs from the equation. ![]()
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