Transport work may be done manually or by means of self-propelled machines. Heavy loads, in particular, – see Maximum Loads – should be handled by means of transport and lifting gear, and if this should not be possible, such loads should be handled by two workers or by means of transport and lifting equipment (i.e. forklift trucks, excentric shaped grippers, shoulder straps). For power-operated transports, the following work equipment may be used: continuous handling equipment, hydraulic lifting platforms, elevators, vehicles, platforms, storage and retrieval machines, forklift trucks For power-operated transport. careful packaging and restraining of loads is to be ensured.