Ch 8 Elevators (2) Flashcards

1
Q

Explain elevator machine room.

A

Heart of the system - contains elevator hoisting machines, motor generator sets, solid state power supply and control equipment.

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2
Q

What is in an elevator hoist-way?

A

Contains guide rails on which elevator cars and counter weight run.

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3
Q

What is wait time and what is considered excellent wait time?

A

25 seconds or less.

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4
Q

What areas should be checked during a property managers elevator system review?

A
  • Performance
  • Safety features|
  • Fixtures
  • Doors
  • Leveling
  • Ride
  • Run times
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5
Q

What operations are commonly timed and checked?

A
  • Floor to floor time
  • Performance time
  • Brake to brake time
  • Door open time
  • Door dwell
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6
Q

Environmental concerns with hydraulic elevator.

A

Hydraulic fluid is petroleum based and may be classified as hazard substance.

15 minute notification of discharge

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7
Q

What is an Armature?

A

Rotating coils of electric motor

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8
Q

What are two common safety tests for elevators?

A
  • 5 year full load

- Hand tripping of governor to see if safety jaws are effective

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9
Q

Six area should maintenance providers be evaluated.

A
  • Technical expertise
  • Work force
  • Safety record
  • Support
  • Facilities
  • Fiscal soundness
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10
Q

What are four major types of elevator maintenance contract options?

A
  • Full maintenance
  • (POG) Parts, oil and grease
  • (OG) Oil and Grease
  • Survey and report
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11
Q

Full maintenance contract like insurance?

A

Vendor takes full responsibility - Intended to eliminate all concerns

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12
Q

Explain POG

A

Excludes large components such as elevator machine rooms, motors and re-cabling. Clearly states work covered and parts supplied.

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13
Q

Explain OG

A

Knowledgeable person to inspect. Mechanic lubricates moving parts. Owner pays for repairs and parts

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14
Q

What is propration?

A

List details of elevator components maintenance company believes will soon need replacement.

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15
Q

What types of records and reports are provided by the elevator maintenance company?

A
  • Call back and repair record
  • Annual equipment survey
  • Repair recommend equipment
  • Performance report
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16
Q

What is a call back?

A

Customer request that requires check of an elevator other then regularly scheduled maintenance.

17
Q

What are some examples of peripheral equipment that mat be modernized?

A

Door operators, roller guides, door detector systems and emergency lighting.

18
Q

Two phases of elevator operation.

A

1 - Lobby key

2 - In car for fireman

19
Q

What is recommeded minimum emergency power supply for elevators?

A

Capacity to move one elevator at a time at normal speed.

20
Q

The best method for conducting an in-house review of the elevator system is to:

A

D. Ride elevators and note passenger comments

21
Q

The heart of the system for elevators and the location most routine maintenance is:

A

D. Machine Room

22
Q

During a fire emergency, special elevator emergency service allows key operations of elevators by:

A

B. Firefighters

23
Q

A traction elevator safety test is required yearly is performed by hand-tripping the governor to see if:

A

A. The safety jaws operate

24
Q

Elevator maintenance providers should be evaluated and selected on the basis of their capabilities in the following areas: Technical expertise, work force, safety records, support, facilities and

A

A. Fiscal soundness

25
Q

The minimum recommended emergency power supply per elevator bank is the capacity to move:

A

C. One elevator at a time at normal speed