A forklift (forklift parts) stock folded his slow rise of reasons:

1, pump wear or leakage;

2, the distributor valve spring pressure is too low or the ball and valve seat wear and tear;

3, the distributor valve lifting and lifting cylinder valve stem clearance is too large;

4, the lifting cylinder and piston clearance is too large, or the seal of aging, damage;

5, the pipe or fittings leak;

6, one-way throttle valve can not be lifting fork failure reasons:

① tank short of oil;

② tubing connector plug or serious oil spills;

③ pump damage;

④ broken valve spring or permanent deformation;

⑤ door frame deformation;

⑥ poor hydraulic oil and so on.

Second, the forklift (forklift parts) Fork automatically upgraded reasons for the decline:

1, seal aging or damaged;

2, the lift cylinder and the gap between the piston is too large;

3, the hydraulic cylinder and distributor valve lifting lifting large gap between the valve stem;

4, the hydraulic cylinder and distributor valve lifting lifting large gap between the valve stem.