The outer packing size (cm) : 48 * 16 * 7. The gross weight (including packaging) (kg) : 5.6. Hydraulic line take is to develop a kind of special tools for railway signal department, suitable for all kinds of railway signal system signal lines taper pin out of work. One, the product features: the model of hydraulic hydraulic line machine structure is compact, light weight, easy to carry. Simple operation, saving time, easy to use; Wide use range and does not damage the original parts, take out the signal lines and cone pin, can be repeated use. Take line two, how it works: hydraulic device in oil pump start bar around the fulcrum for reciprocating swing continuous pumping hydraulic oil, hydraulic oil driving Lamar pistons, piston front-end via the pull block roof rails, make Lamar cylinder by trapezoidal thread drive device backward, opened-toe stuck by pull signal lines taper pin, pull the signal from an axle hole taper pin. Take line 3, the scope of application: this hydraulic device is suitable for the signal lines taper pin size for: outer diameter phi 30, phi 12 taper pin head size, screw thread M8. Four, performance parameters: the safe load for the 10 t, Lamar piston radius of 40 mm, effectively implement a adjustment allowed back (out) a distance of 15 mm. Five, the use method and matters needing attention: 1, when used in the oil cylinder and connected to end, oil cylinder oil return valve first tighten screw clockwise direction. 2, pull the front opening of the cone of 11.5 mm wide, hook line taper pin roots and pull Lamar trapezoidal thread screwing, make Lamar and pull the top of the piston rod top tight, shaking oil cylinder starting handle, pull gently back and pull the signal lines taper pin. 3, to make Lamar piston rod back, just put the oil cylinder oil return valve screw counterclockwise direction slightly unscrew, Lamar piston rod that is in the spring force next time shrink after retraction of the piston rod, cylinder oil return valve immediately screw tightening. 4, Lamar the red lines on the piston rod for a limit line. So in Lamar line of work, as long as show the red lines on the piston rod, pull the schedule should be terminated. If need to continue to pull out, we should start the oil return valve, retract the piston rod, to adjust the position between Lamar and pull the top piece, according to the method of use repeated operation can be pulled out. 5, before use must estimate the required pulling force does not exceed the device safe load 10 t, avoid by all means use overload. 6, used in the - 5 ℃ ~ + 45 ℃, using (GB443-84) N15 machine oil; Use in - 28 ℃ ~ 5 ℃, using synthesis spindle oil (GB443-64), working oil must be clean.