11.8.1 Installation of the Equipment
The security and rigidity of a runway depends largely on its fixings and foundations. When a runway is built into or attached to an existing structure, a structural engineer or other qualified person must assess the superimposed forces. A certificate of approval should be obtained and kept with the lifting equipment records. Similarly, a free standing runway and structure is only safe when rigidly mounted onto a correct foundation which has been approved by a qualified person.
It is usually the case that the supplier will undertake the installation and commissioning of all but the simplest of runway systems. The following recommendations are offered for those occasions where the user may be installing a simple runway or moving an existing runway to a new location.
It is important that proprietary items, e.g. fixings and special track sections, should be fitted fully in accordance with the manufacturer’s instructions.
The track should be level both along and across the track and the running surface on which trolley wheels sit should be even, with no steps which will impede the movement of the wheels. Suitable packing pieces and shims should therefore be used to ensure this condition. They should be securely fitted so that they are unable to work loose or be accidentally removed.
All bolts and fixings must be secured with necessary washers, including taper washers if needed, and locking devices.
When erecting the lifting appliance trolley onto the beam, ensure it is correctly adjusted for the width of the beam or track in accordance with the manufacturer’s instructions.
Positive end stops must be securely fitted so as to prevent the lifting appliance becoming detached from the runway or colliding with the supporting structure.
The erection of the lifting appliance and, where necessary, the power feed system must be carried out in accordance with the manufacturer’s instructions. Reference should also be made to the following sections of this code for further guidance:
On completion of erection, the fixings and all structural bolted connections should be checked for correct alignment and tightness. Foundation bolts and fixings should be checked for correct fitting and security. End stops should be checked to ensure that they are correctly in place, secure and that they do not contact the trolley wheel flanges. Working stops should be checked for correct positioning and operation.
Any pre-service checks necessary for the power feed system and lifting appliance(s) should be completed in accordance with the manufacturer’s instructions and the relevant sections of this code.