Testing the telescopic strut and shock absorber on the stand (VAZ-2108)

To determine the operability of the telescopic strut and shock absorber, their operating diagrams are checked on a dynamometer stand. The operating diagrams are taken according to the instructions attached to the stand, after performing at least five operating cycles, at a working fluid temperature of (20±5)°C, at a frequency of 60 cycles per 1 min, and a rod stroke length of (100±1) mm.

Curve diagram (figure 87) should be smooth, and at the transition points (from compression stroke to rebound stroke) without sections parallel to the zero line.



The compression and rebound stroke resistance is determined by the largest ordinates of the diagram. The control values of the ordinates on the diagrams of the telescopic strut and shock absorber are specified for the struts and shock absorbers at a temperature of (20±5)°C. The highest point of the compression stroke curve at a scale of 4.8 kgf per 1 mm should be located from the zero line at a distance B equal to 3.25 mm ±0.5 mm (15.6±2.4 kgf) for the telescopic strut and 5.25 mm ±0.75 mm (25.2±3.6 kgf) for the rear suspension shock absorber.



The highest point of the recoil curve, with the same scale, should be located from the zero line at a distance A equal to 13 mm ±1.5 mm (62.4±7.2 kgf) for the telescopic strut and 12 mm ±1.25 mm (57.6±6 kgf) for the rear suspension shock absorber.

After checking, remove the telescopic stand (shock absorber) from the stand and, if necessary, disassemble it, replacing damaged or worn parts. After assembly, repeat the test to ensure that the telescopic stand is in good working order (shock absorber).