01
Holding lever bar, place YTF-400 hydraulic rail gap regulator on the top of a single rail, lift the lever, pull the wedge iron out, the running wheel follows the lever down on the top of the rail and the rail gap regulator is lifted.
02
During maintenance, press the lever, pull the wedge along the iron slot for inward movement, wedge tooth surface spacing gradually reduced, the lever and travel wheel installed in the running mechanism down with the linkage mechanism up, the lower part of the clip placed on the top of the rail.
03
Tighten the oil return control valve (right rotate), shake the joystick (3), piston pump with reciprocating movement to suck hydraulic oil, through the valve seat into the cylinder, when the piston out to 20-40 mm, press the lever of rear wedge seat to make wedge clamps be tight at both sides of the rails
04
And then continue to press the pump and stops when gap of rail joints gradually increased to required size, left rotate the oil control valve for half round, due to the role of the reset spring, piston rod can be reset. Lift the lever, relax the wedge and then string work completed.
