Bridge machine vias job safety requirements

1,   hoist gantry crane  host vias completed, paving the rear legs of steel pads, making four pad pier ground forces, and finishing with rebar and chain hoists anchor (abutment at hand only pull hoist anchor ).
2, you must confirm the remote control while selecting the host, auxiliary motor legs to walk, use the remote control two motors, drives, bridge machine vias.
3, under the guide beam in place, overhead gantry crane the secondary leg must be unstressed state, the auxiliary drum trolley and lower legs hanging down wheel and the lower beam separation.
4, observed by hand during walking legs and rear outrigger motor assisted walking are synchronized.
5, with level meter flat copy, front and rear elevation girder bridge machine to meet the requirements, the first leg is slightly higher, around the main beam bridge machine should be level.
6, in the through-hole course, bridge gantry crane  to have someone care before lifting beam truss cars, trucks and lower guide beam girders supporting legs walk the line status of the motor to ensure synchronization.