Because of the structure and special requirements of road when walking, the bridge girder launcher for tunnel must be separated when carried.
a. Accessories must be put into box regularly, and quick-parts are packed individually and the box is filled in the barrier; and the mounting surface of mechanism should be treated with a preservative and then packed.
b. The separated parts should be numbered and recorded in consecutive order .
c. The name , number and installation parts of unpacked parts  should be marked on the surface by paint.
d. The surface of the steel rope should be painted oil and the rope should bind on the drum.
e. Hydraulic hose should be put into box regularly .
f. The packed box should be firm, and the parts should be put into the box from small to big and from light to weight.
g. When lifting, the workers must comply with the crane safety operation rules strictly.