Operations
Operator Aids
Safety and Signals
Basics limitations characteristics
100
Whip or auxiliary line.
what is a secondary rope system with a lower capacity than the main rope system?
100
Lowering the boom with the load too close to the boom tip
what is what could two block a crane?
100
Back that crane up
what is three horn beeps
One Stop
Two move it on out move forward
One long job site horn potential hazard or severe weather, tornado, specific to a site
100
radius increases
What is capacity decreases?
200
Repetitive lifting, moving of loads that requires crane capacity to be lowered.
what is Duty Cycle Operation?
cement buckets, grabbing clamps claws, wrecking ball, magnetic clamps and lifters all have a potential for side loading and dragging placing strain on the boom and rope 20% reductions of capacity at that radius and boom angle
200
Were first required on lattice boom cranes built after February 22, 1992
what are Anti-Two-Block warning devices
200
load does not stay in view of the operator
When is a signal person required?
200
Freely suspended load
what is load hanging from the hook that is not in contact with the ground or another object?
all load charts are developed off of a freely suspended load, loaded boom angle and boom length. Do not forget 1 degree of level.
300
crane leverage is greater than the load’s leverage
what is for the crane to complete lifts and operate safely, these leverage conditions must occur?
300
It must be done
it is the law
What does it mean if you see the word “shall” in a regulation?
300
emergency stop all crane movements
what is
300
Lift Director during tandem or multi-crane lift
what is who shall(must) be present at all times while a multiple crane lift is taking place?
400
the foot of the boom is behind the axis of rotation
What is why can’t most telescopic booms reach a radius equal to boom length?
400
measure the angle of the boom relative to the groun
What is the purpose of a boom angle indicator?
400
Which of the following is not a requirement found in ASME B30.5?
A. Moving parts must be guarded if people can make contact with them
B. Lubrication points should be accessible without removing guards
C. A power line warning must be posted on every crane and visible from the operator’s seat.
D. Floats must be attached to outriggers during use.
E. Operator bodyweight must be considered when determining a crane’s center of gravity
What is D OPERATORS BODY WEIGHT IS NOT CONSIDERED
400
Pine 2x4’s with a one inch gap separating each 2x4
what shall not be allowed or used for blocking under and outrigger float?
1. gap between boards would cause a shift or span blocking
2. pine is not a hardwood approved for lifting or jacking blocking or cribbing
3. should be thrubolted
500
Outrigger position indicator
what is an operator aid that ensures outriggers are deployed correctly for stability?
Verify visually or post spotter to watch extension of outriggers fully extended then fully lowered and supporting crane tires are off the ground. 90 degrees with pins in pad feet or floats.
500
anti-two-block warning device alerts
flashing a light
By sounding an alarm
What is an operator aid that warns the operator of potentially two blocking (warns of the condition)
anti two block limiting device is also an operator aid but it locks out the functions to prevent two blocking. (Locks out Hoist, boom down, extend the boom) all functions which may push block or load farther into the boom point jib point and or boom jib sheave.
Wire rope damage potential boom or jib damage.
500
what is extend the boom?
500
Over the front, In line with the travel direction, boom angle and length as low and shortest as possible load as low as possible, without obstructing the operators view, speeds set by the competent person
what is a pick and carry operations?
if the crane is approved for it by the crane manufacturer.
600
first step in setting up a crane on a construction site?
What is Perform site survey.
Verify access roads and clearances to power lines, ground clearance first, verify site soil compaction, no free standing water previous excavation under ground vaults water sewer electric. Coordinate with site supervisor corrections.
600
Anemometer
What is an operator aid or sensor it’s function is to provide wind speed indications on LMI or gauge in crane operation?
Common on tower cranes and tall lattice boom cranes.
some cranes have wind speed charts and load surface area calculations.
600
What is what is boom down raise the load?
600
Not allowed on all cranes, tie the load to the carrier or use tag lines, competent person must be present to supervise the operation
'
what is a pick and carry?
700
must be done before backing that crane up for example between two buildings or in an alley.
What is Spotter must be posted?
these are good answers but you must always have a spotter you shall have a spotter
planning the route is first discuss with the signalman/spotter the plan
use your mirrors
Walk the area
700
LMI reading is greater than 75 percent
When is additional verification of load weight required?
700
Prevent that load from spinning make that boom shorter
What is while holding a tag line retract the boom?
700
'lift weighs more than 90 percent of the cranes maximum line pull
Test the brake by hoisting the load a few inches and applying the brake…..critical lift
@75% verify the weight if the load against the LMI to the bill of lading, weight ticket, weigh station receipt, make sure the load binders and chains were removed from load unbolt from packing pallet or bed. Critical lift