What is the reason why the fork lift speed is too slow and cannot be lifted?
Reasons for slow rise:
(1) Oil pump wear or oil leakage
(2) The spring pressure of the distributor safety valve is too low or the steel ball and the valve seat are worn
(3) The gap between the distributor lifting valve cylinder and the lifting valve stem is too large
(4) The clearance between the lifting cylinder and the piston is too large, or the oil seal is aging or damaged
(5) Leakage in pipelines or joints
(6) The reason for the failure of the one-way throttle valve and the fork can not be lifted (1) The oil tank is short of oil (2) The oil pipe joint is blocked or serious oil leakage (3) The oil pump is damaged (4) The safety valve spring is broken or permanently deformed (5 ) Deformation of the mast (6) Poor hydraulic oil flow, etc.
What is the reason for the automatic decline after the fork is lifted?
answer:
(1) The aging or damage of the oil seal
(2) The gap between the lifting cylinder and the piston is too large
(3) The gap between the lifting valve cylinder and the lifting valve stem of the hydraulic distributor is too large
(4) Pipeline or joint oil leakage
