Phenomenon: 

① 1 gear start, relax the clutch pedal, the vehicle can not start smoothly.

② acceleration, the speed can not be synchronised with the increase in engine speed, vehicle powerlessness, serious clutch near the burning smell or smoke and other phenomena.

③Pull the handbrake or step on the brake and put it into the 1st gear to start, shacman parts the engine should be switched off, but it is not switched off.

china  shacman truck parts Possible causes:

① The free travel of the clutch pedal is too small.

② The connection between pressure disc and flywheel is loose and the preload is insufficient.

③ The release bearing is stuck and cannot return to the normal position.

④ Friction disc is abraded, hardened or oiled, friction force is reduced.

⑤ Excessive wear on the surface of friction disc, pressure disc or flywheel shell.

⑥ The diaphragm spring is plastically deformed or broken, and the compression force is insufficient.

Inspection steps:

① Check whether the free travel of the clutch pedal is suitable, and adjust it if it is not suitable.

② Check whether the friction disc and release bearing are stuck, if so, clean them up.

③Check the friction disc, pressure disc and flywheel working surface wear and replace.

④ Check whether the diaphragm spring is deformed or broken, and replace it.