All spring, depending on the length and the load 3425 N (350 kg) are divided into two classes: Class "A", the length of which is more than 278 mm, and the class "B"the length of which is less than or equal to 278 mm.At the same time, the spring class "B" on the outside of turns blacked out, and the class "A" is not painted at all.
Before you start checking all the parts should be thoroughly rinsed.Cartridges, protective coatings and rubber parts do not forget to protect from solvents.Then examine every detail of the spring for cracks, mechanical damage and wear.
necessary to check the length of each spring back or front suspension in a free state, if the length of the spring is less than the maximum permissible stan
dard value, it should be replaced.Remember that the standard is 44.00 mm and the length of the spring under load 216 N approximately 35.00 mm and the length of the spring under a load of 451 N 27.20 mm.
Now check the elastic characteristics of the spring in its reference points, before this pre-holding it until it touches turns to each other.Then see whether the deformation of the spring rear or front suspension, if it exists, it means that there are reasons for violation of its performance, so you need to replace the spring.
Next spring, check for squareness.If more than the maximum allowable perpendicularity standard value equal to 1.5 ° or less then this means that the spring has violated its properties and should be replaced.
There is another way to check the old springs.To do this, between two metal bars with a bolt in the middle should hold the old and new spring and gradually tighten the nut of the bolt.If they are compressed to the same degree, it means that an old spring is in the normal state.
And finally, you need to check the condition of the rubber bearing pads springs back or front suspension.In the event of a fault, replace them with new ones.