CRANE OPERATION AWARENESS
control the travel of cranes so as to avoid collision with persons,
material, and equipment.
carry the boom in line with the direction of motion.
or otherwise restrain the empty hook so that it cannot swing
rotating the crane, avoid sudden stops.
Always maintain a rotational speed such that the load
does not swing out beyond the radius at which it can be safely
use tag or restraint lines where rotation of the load is hazardous.
operate cranes with wheels or tracks off the ground or working
surface unless properly bearing on outriggers.
the brakes each time a load approaching the rated load is handled
by raising the load a few inches and applying the brakes.
lower the load or the boom below the point where less than two
full wraps of rope remain on grooved drums and three full wraps
on ungrooved drums.
one crane is to be used to lift a load.
- Always keep open lights, flames or spark-producing
devices at a safe distance while refueling the crane.
- Never load a crane, derrick, or hoist beyond its
- Attach the load to the hook by means of sling or
other suitable or effective means.
- Inspect slings before each use, and make sure they
are free of kinks or twists.
- Never wrap the hoist cable around the load.
- When moving the load, the individual directing the
lift should see that:
a. The crane is leveled for work being performed and the wheels
blocked where necessary.
b. The load is well secured and properly balanced in the sling
or lifting device before it is lifted a few inches.
c. All individuals assisting in the lift are wearing proper
personal protective equipment including gloves and hard hats.
d. Employees never stand under the load.
- When a load of any kind is to be suspended for any
considerable length of time, make sure the brake is firmly applied.
- Never leave cranes unattended while the load is
suspended unless the load is suspended over water, a barricaded
area, or blocked up or otherwise supported from below during
repairs or emergency.
- Employees are prohibited from standing under any
suspended loads at any time.
INDOOR CRANES AWARENESS
all lifting operations so that no one would be injured if there
were an equipment failure.
sure the hook has a safety latch that closes the throat of the
the latch swings freely across the throat of the hook, then
the hook has been stretched and must be replaced before the
hoist can be used.
the ANSI warning and operational labels on the control panel.
exceed the crane's lifting capacity.
the weight of the load by checking shipping or manufacturer.
the weight of the load can not be accurately determined, compare
the load to a similar load lifted in the past, get a second
estimate from an experienced coworker, however, do not exceed
50 percent of the lifting capacity of the crane when lifting
an estimated load.
the proper rigging gear that is within the Safe Working Load
(SWL) of the web sling or wire rope being used.
the rigging gear prior to use.
For wire rope slings, never exceed six or more broken
wires within one lay of strand length. The wire rope is to be
- Cranes are designed for vertical lifts only. Side pulling may result in hoist and crane
breakdown or collapse.
- Sling angles are very important. Never exceed 45 degrees, as this will put
too much tension on the sling.
- When lifting, slowly raise the hoist to take the
slack out of the slings. Then raise the load a few inches to
check the rigging and the stability of the load. Then lift the
load in one smooth motion.
- NEVER LEAVE A SUSPENDED LOAD UNATTENDED.
- Do not pass a load over coworkers or allow anyone
to walk under the load.
- Never operate a crane if you cannot see the load
or the entire crane.
- Do not leave the hoist block low enough for someone
to walk or drive into.
- Wear all appropriate personal protective equipment, including,
hard hats, eye protection, hearing protection, and gloves when