Page 996 - Foton Workshop Manual - Aumark (BJ1099)

32-6 REAR SUSPENSION - REAR SHOCK ABSORBER

5. Install the rear shock absorber
(a). Install the rear shock absorber in place.
(b). Tighten the upper mounting bolts of rear
shock absorber.
Torque:41~51N•m

(c). Tighten the lower mounting bolts of rear
shock absorber.
Torque: 78~96N•m

6. Check after installation of shock absorber
(a). After the installation of shock absorber, drive the vehicle on a rough road for
approximate 10km and then stop the vehicle and touch the surfaces of shock
absorbers with your hand. If there is a high temperature difference between two
shock absorbers, it indicates that the resistance force differs greatly between two
shock absorbers, of which the shock absorber with lower temperature has lower
resistance force. If the surface temperature of any shock absorber is no higher than
the ambient temperature, it indicates that the shock absorber has no resistance
force and is failed. In such case, replace the shock absorber.
(b). In event of emergency braking during slow traveling of the vehicle, if the vehicle
vibrates strongly, it indicates that the shock absorber is malfunctioned. Remove the
shock absorber, place vertically, clamp the lower end on a bench vice, and then
push and pull the shock absorber rod with a high force for several times. In such
case, there shall be a stable resistance force and the upward pulling (restoration)
resistance force shall be higher than the downward pushing resistance force. In
event of unstable resistance force or no resistance force, the shock absorber is
probably internally short of oil or has damaged valve parts and shall be replaced.
(c). The abnormal noise malfunction of the shock absorber during the actual use
is mainly caused by damage or falloff of the shock absorber rubber gasket or
insufficient oil. Find out the cause and repair accordingly.

Page 996