STACKING CRANES (FIXED)
NOTE: Paragraphs identified with a vertical line in the left margin are inspections that should be
made by certified Vertical Transportation Equipment Inspectors only.
The inspection of fixed stacking cranes included in this chapter is not only an inspection of all
safety related functions, but is also an inspection to determine the condition of the maintenance
needed to keep the crane operating. When preventive maintenance is lacking, shut downs will
occur. In this chapter we will identify specific published safety standards that relate directly to
the inspection procedure being followed in this text. It is intended that each noted standard
should be reviewed as it is identified. Safety as well as performance considerations of the
inspection will be addressed in the following text. See Figures 16-1, 16-2, 16-3 and 16-4 that
show a typical stacker crane and components with names that will be used in this chapter.
The purpose of this inspection is to review the entire stacker crane installation to ascertain that
the equipment is being properly maintained and is in a safe operating status. Because the
operation requires an operator to ride the device and the device is exposed to people, the
inspection should have emphasis directed towards those areas that directly relate to the safe
operation by the user personnel and its exposure.
Stacker cranes are used to place and retrieve stored materials in a warehouse type
environment. The device operates both horizontally and vertically. The vertical movement is
guided by fixed rails contained with the unit and the horizontal movement is on fixed rails
adjacent to the storage area it serves. The movement of the device is controlled by an
on-board operator. No other persons are permitted to ride on the unit.