12 Ton Crane Hydraulic Lock Maintenance Method

Hydraulic lock of 12 ton crane is also called compression-retaining and locking valve. Frequent Question Analysis:

According to the principle of crane hydraulic system, there are two fault points, one is the problem of vertical cylinder, the other is the problem of hydraulic lock.

1. If the oil cylinder fails, if the internal seal is worn out, the replacement of the seal can be solved. If it is the internal pull of the cylinder and other reasons, the cylinder must be replaced.

2. If the hydraulic lock is a problem, it is necessary to check whether the impurities are stuck after disassembly, and then clean it. If the valve stem is damaged, it must be replaced.