Mobile and travelling cranes

Pages64-64
64
17. Mobile and travelling cranes
17.1. General requirements
17.1.1. The mine operator should ensure that all cranes, lift trucks and similar
handling equipment in use at an opencast mine are constructed, operated and
maintained in accordance with the relevant national standards and the manufacturer's
instructions.
17.1.2. No modifications or major repairs should be carried out on a crane unless
these are performed by a person competent in this field.
17.2. Safety precautions
17.2.1. The following precautions should be adopted in the operation of cranes
and lifting devices:
17.2.1.1. hitches and slings used to hoist materials should be suitable for the material
being handled and should be in good condition;
17.2.1.2. taglines should be attached to loads that may require steadying or guidance
while suspended;
17.2.1.3. persons should stay clear of suspended loads;
17.2.1.4. no material should be dropped from an overhead elevation unless the drop
area has been cleared of personnel and either guarded or a suitable warning
given; and
17.2.1.5. only trained and competent workers should be authorised to sling loads.
17.2.2. Fork and other types of lift trucks should be operated with:
17.2.2.1. the upright tilted back to secure the load;
17.2.2.2. the load kept in the upgrade position when ascending or descending grades in
excess of 8 per cent;
17.2.2.3. with the exception of minor adjustments, the load should not be raised or
lowered en route; and
17.2.2.4. the load-engaging devices should be on the downgrade side when travelling
unloaded on all grades.

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