Checking shock absorbers on a stand (VAZ-2105)

To check the shock absorber's performance, record its operating diagram on a dynamometer stand. Record operating diagrams according to the instructions after performing at least five operating cycles at a shock absorber working fluid temperature of 20±5°C, a stand flywheel speed of 60 min⁻¹ and a rod stroke length of 80 mm for the front and 100 mm for the rear shock absorber.

The resistance of the recoil and compression strokes is determined by the largest ordinates of the corresponding diagrams. The curve of the diagram (Fig. 174) should be smooth, and at the transition points (from recoil stroke to compression stroke) without sections parallel to the zero line.



The highest point of the recoil stroke curve at a scale of 4.8 kgf per 1 mm should be located from the zero line at a distance A equal to 21-28 mm for the front shock absorbers and 19-26 mm for the rear ones. The highest point of the compression stroke curve at the same scale should be located from the zero line at a distance B equal to 3.5-6.5 mm for the front shock absorbers and 4.5-7.5 mm for the rear ones. After checking, remove the shock absorber from the stand and, if necessary, disassemble it and replace damaged or worn parts. To make sure the shock absorber is in good working order, repeat the test.

[The article is copied from the website: VazBook.ru]