Crane Operation
The crane's capacity should be clearly marked on _______.
each side of the crane
Check all _________ for proper operation.
buttons
Rigging equipment should be inspected ___________.
before each shift
Slings must not be __________ with knots or bolts or other makeshift devices
shortened
Look for ___________ if the crane is binding or jumping.
bolts on the floor
________ must remain clear of loads about to be lifted and suspended.
Employees
Make sure that wire rope does not ________ when rewinding.
tangle
___________ must be proof-tested prior to use to 125 percent of its rated load
Custom lifting equipment
Slings used in a __________ must have the loads balanced to prevent slippage.
basket hitch
Operators must check for __________ at limits of trolley travel
trolley stops
Markings should be clearly legible from the ________.
ground
Buttons must return to ________ off when pressure is released.
"off"
When not in use, rigging equipment should be _______________.
removed from the immediate work area
The weight exerted on each sling in a two sling/90 degree hitch configuration carries __________ of a 1,000 lb load
500 lbs
Cranes should be inspected ________, and those inspections should be _________.
daily; documented
Crane operators should avoid sudden ___________ when moving suspended loads.
starts and stops
To test the _____________ , slowly run the hook all the way up to see if it stops.
upper limit switch
Slings must be ____________ from load sharp edges
padded or protected
The weight exerted on each sling in a two sling/45 degree hitch configuration carries __________ of a 1,000 lb load
707 lbs
___________ and __________ systems should be checked for leaks.
Air; hydraulic
_________ should be used unless their use creates an unsafe condition.
Tag lines
With the hook lowered all the way to the floor, at least __________ of wire must remain on the drum.
2 wraps
Chain sling inspection frequency depends on the __________ of service conditions, among other things.
severity
A _______ hitch is the strongest type of hitch.
basket
The throat of a hook should be enlarged no greater than _______.
15%