.2 Installation

1.2.1The rail frame used for the movement of the electric hoist of gantry crane is selected and designed according to standardtruss girder gantry crane

GB706-88 by users themselves. Adjust the electric and driven bogies with spacers when installing to ensure the space

between the wheel edge and rail flange is 3-5mm

1.2.2          In accordance with different hoists, please install the electrical equipments referring to relevant circuit.

1.2.3          Points for attention to installation

a.       Elastic buffer should be set at two ends of the rail in order to make sure that the hoist does not deviate from the

rail when it reaches the end or to prevent bumping into the body.

b.       The rail or the connected frame should be equipped with earth-connecting wire as which bare copper wire with

the diameterΦ4-5mm or metal conducting-wire with the section no less than 25mm2 can serve.

c.       All power circuit in the electric equipment, and the resistance to ground of the controlling circuit should be no less than 1.5Ωper working voltage.