Quantcast Chapter 5 Lifts With Automatic Transfer Devices

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NOTE: Paragraphs identified with a vertical line in the left margin are inspections that should
be made by certified Vertical Transportation Equipment Inspectors only.
5.1.1 Scope
The inspection procedure of lifts with automatic transfer devices included in this chapter is
not only an inspection of all safety related functions, but also an inspection to determine the
condition of the equipment and identify areas that need improvement. Proper maintenance is
needed to keep the lift operating. When preventive maintenance is lacking, shut downs will
occur. Chapters 2, 3, and 4 of this manual should be used as the basis of inspecting the lifting
equipment associated with these installations. In this chapter we will identify the specific
differences between these devices and the equipment included in the previous chapters and
address the inspection procedures to be followed when inspecting such equipment. It is intended
that each noted section should be reviewed as it is identified and suggested procedures followed.
The maintenance and performance considerations of the inspection will be addressed in the
following text.
5.1.2 Application
There are many varieties of lifts with automatic transfer devices and the following are
descriptions of the commonly used types. Cart Lift. This type is mounted on a small floor stopping elevator or dumbwaiter and
acts to pull the cart from the floor landing onto the lift or to push the cart from the lift onto the
floor landing. (See Figure 5-1). The sequence is automatic in that the cart is placed in a position
in front of the lift and a call or send signal is registered. Lift operation consists of automatic
opening of doors, extension of the transfer device, and engaging of the coupler on the underside
of the cart with the mating coupler of the transfer device. The transfer device retracts pulling the
cart into the lift, the doors automatically close, and the lift travels to the destination. When the
reverse cycle takes place, the doors open, the transfer device pushes the cart out, disengages the
coupler, retracts, the doors close, and the lift is free to move to the next demand.


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