Electric hoist brake problems how to deal with

Electric hoist brake failure is more common,manual hoist technical staff based on years of practice experience, brake failure is due mainly to a few points:
1, brake failure:
(A) the brake pads wear cladding serious or large loss;
(2) Long stroke solenoid is stuck;
(3) the moving core and the horizontal connecting rod between the lever off;
(4) electro-hydraulic thrusters or hydraulic solenoid does not operate;
(5) the main spring failure or damage;
(6) electrical failure and so on.
2, the braking force is insufficient.
(A) the brake pads or brake wheel cladding excessive wear;
(2) there are small pieces of cladding partial loss;
(3) the main spring tune too loose;
(4) Activities hinges which are catching or excessive wear of parts;
(5) caused by loose nut adjustment lever loose and so on.
3, the brake can not be loose brake.
(1) The hinge points are stuck not rotate;
(2) The main spring tension adjustment too large;
(3) electro-hydraulic thrusters lack of oil or hydraulic oil cylinder solenoid or air is not exhausted;
(4) coil or rectifier elements burning,lever hoist low voltage or line failure.
4, easy to disengage the brakes adjusted position.
(A) the main spring adjustment too loose;
(2) electro-hydraulic thrusters working stroke adjustment Debu meet the technical requirements.
These are on the main  wire rope hoist  brake failure, hope to help you.