QUESTIONS AND ANSWERS SURE A+
✔✔Step Level switches (Sometimes referred to as Sag Switches) are located within the
step band of both upper and lower truss assemblies.The switches function is to prevent
a step that is sagging more than 1/8 inch at the riser end of either side of the step.
This is generally caused by worn, damaged or missing step wheels.
This switch is manually reset to be able to run. - ✔✔Escalator Step Level Switch
825 Pg 37
✔✔The Micrometer is an instrument for measuring very small lengths using the
movement of a finely threaded rotating screw.
The Metric Mike is graduated and read in hundredths of a millimeter (0.01 mm)
The US Mike is graduated and read in thousandths on an inch (0.001 in.) -
✔✔Micrometer Reading
170 Pg 17
✔✔From the outside in, Preventing those in the cab from getting out on their own. -
✔✔The Escape Hatch opens which way?
,✔✔An Escape Hatch is not necessary UNLESS manual operation is not provided! -
✔✔Does a residential lift require an Escape Hatch
845 Pg 6
✔✔Elevator constructors receive the elevator Abstract. It Specifies the number of
Rails,Hall lanterns,Push Buttons, Ect.... Included is details such as quantity,color,type of
materials and special features unique to installation. - ✔✔What print will show you the
location and how many fixtures?
175 Pg 8
✔✔12 Floors x 3 Elevators= 36 PI's - (3 from 3 floors)9 =27 - ✔✔12 Floor Building with
three cars, 3 floors will not get PI's. How many PI's in total do you need to order for this
job?
✔✔ - ✔✔If you have an elevator that goes 1760 RPM at 60Hz, What Hz do we need for
it to go 600 RPM's
✔✔If you see a co worker with any signs, you must take action. Talk to the mechanic in
charge, call you business representative, or call your supervisor. - ✔✔If someone on the
job smells of alcohol, what do you do?
120 Pg 5
✔✔Rotary (Auger Drill) It is generally used on dirt, clay, quicksand and other soft soils
Rotary (Core Drill) is generally used on hard compacted soil such as clay, shale or slate
and on some gravel and rocks.
NOTE:
For rocky conditions we use (Percussion Drilling)
A more efficient way is with :
For hard rock we use (Percussion Rotary) Drilling. This method uses a special bit called
a Button Bit which has water and compressed air
coming out of bit. - ✔✔What kind of drill method do we use in soft soil?
805 Pg 5,6,7
✔✔A perfect Encoder Wave Form will have a square wave. A Sawtooth Wave Form is
produced when the rise and fall of the Encoder has a fault, - ✔✔Encoder Waveform
Question : You get a Sawtooth reading on oscilloscope out of encoder. Is it good?
350 Pg 16,17 630 Pg 18,19
, ✔✔Raise Boom / Arm out straight to side with thumb pointed up.
Lower Boom / Arm out straight to side with thumb pointed down.
Extend Boom / Thumbs pointed out
Retract Boom / Thumbs pointed in
Hoist up / Forefinger up rotating clockwise
Hoist down / Forefinger out facing down rotating counterclockwise - ✔✔Hand Signals
for Moving Boom of Crane and Extend signal.
128 Pg 12
✔✔The Travelling cable is connected to the car hanger to form a loop.Generally this
loop should be at least 30 times the diameter of the traveling cable,The Hanger may
have to be adjusted POST WISE so the loop clears the edge of the platform.The cable
must have a minimum of FOUR feet vertical suspension at both the hoist-way and car
hanger attachments before it starts to form into its loop. - ✔✔Traveling Cable
515 Pg 8,9
✔✔Use larger Wire - ✔✔In a modernization, they plan on moving the controller 30 Feet
away which ends up resulting in a voltage drop. What do you do?
✔✔The main function of the governor is to grip the governor rope. This action applies
the safety stopping device on the care or the counterweight. To do this the governor
must first sense an over-speed condition and than apply a braking action.
Tripping Speed:
Minimum tripping speed to be not less than 115% of rated speed.
A 400 Ft/min car would have a minimum governor tripping speed of 400 x 1.15 = 460
Ft/min
Elevators having a speed over 150Ft/min shall also have a OVER SPEED Switch
When the safeties have set,they can no longer move. Its necessary to stop the machine
from turning and wearing the cables and drive sheave. Therefore all elevators with type
A and B Safeties shall have a Over Speed switch which will open at not more than 90%
of mechanical tripping - ✔✔Governor Info:
235 Pg 5
✔✔Finished side down! - ✔✔If your cutting something with a power saw, which way
does the piece you are cutting face