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Which lay of wire rope has the strand wires in line with the rope axis?
➹➹➹: Regular Lay
At what speed should the counterweight safeties be set to trip?
➹➹➹: Up to 10% higher than the car governor
Which type of safety uses an oil buffer between the car and safety planks?
➹➹➹: Type C
What is the purpose of the terminal motion switch?
➹➹➹: slow down and stop the car automatically at or near the top or bottom landing
If you have a 3500 lb. car rated at 4000 lbs. capacity, how much should the
counterweight assembly weigh for a normal 40% installation?
➹➹➹: 5100 lbs.
When the pit directional limit switch is actuated, the normal circuits will allow the car to
run
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, ➹➹➹: Up
should not be disassembled in the field.
➹➹➹: Oil Buffers
The loss of traction between the hoist ropes and the machine driver when the
counterweight lands on its buffer avoids...
➹➹➹: The elevator car being pulled into the over head.
Refer to Table 1. With a safety factor of 5, what is the breaking strength for 1 1/8" nylon
rope?
➹➹➹: 52,000 lbs.
Which of the following applies to rope usage?
➹➹➹: Prevent manila rope from unraveling by using whipping.
What does the designation 3/8" 6 X 30 improved plow steel mean?
➹➹➹: It is a high strength cable with 6 strands composed of 30 wires per strand?
When using Crosby clips, which of the following statements is correct?
➹➹➹: To determine the correct minimum spacing multiply the rope diameter times 6.
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