Hydraulic Railway Sleeper Adjuster YFZ-147

Item

Specification

Model

YFZ–147

Maximum Thrust of Piston Rod

147kN

Maximum Sleeper Adjustment Amount

120mm

Relief Valve Unloading Oil Pressure

60MPa

Total Machine Weight

15kg

No.

Inspection Content

a

Check if the oil volume in the fuel tank reaches three-quarters of the tank capacity.

b

Check if the opening and closing performance of the unloading valve is stable.

c

Check if all connection and fastening parts are loose or have oil leakage.

Step

Operation Content

1

According to the characteristics of sleeper displacement, that is, select an appropriate gap (not less than 275mm) according to the work requirements of adjusting track gauge and angle squaring, do not remove or remove less ballast, put the machine into the gap, and it is better to make the movable top head against the lower half of the sleeper thickness.

2

Loosen the fasteners on the sleeper to be adjusted in advance: only loosen one end of the fasteners when squaring the angle, and loosen all fasteners when both ends need to be squared.

3

Rotate the unloading valve handle clockwise to close the unloading valve, insert the operating rod into the lever sleeve, shake the operating rod, so that the high-pressure oil is input into the working oil cylinder through the oil discharge valve in the oil pump cavity, the piston extends, and pushes the sleeper to adjust to the operation requirements.

4

After each adjustment, in order to prevent the gap after the sleeper moves, fill the gap with ballast, then open the unloading valve counterclockwise to connect the high-pressure oil cavity with the fuel tank, and the cylinder piston will automatically return under the action of the return spring to complete a cycle. If the adjustment amount is insufficient, the connector can be unscrewed to meet the maintenance requirements.