operate

How to Operate a Tower Crane - Rebar Column



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testing out a little video here seeing

what it looks like from

everyone else's perspective a little

chesty on the gopro

and a stand up a column it's a pie

laster it ties into a wall

it's just all made of rebar tied

together it's probably 20 feet long

we're gonna

stand it up and send it over and set it

and we'll see what that looks like on

video

over my right hand we got hoist control

so it goes

push down for down we got

up for up and pulling back towards you

in the left left hand side we got break

for the twists that's a break for the

swing

um and then we've got uh swinging left

we just pushed the controller to the

left that was the brakes opening up

and then to the right we just pushed to

the right and reset my brake since

there's a little bit of a breeze out and

get pushed around by the wind

got it trolley in trolley out

that's how this thing runs

some cranes will have a fourth control

for

uh traveling when you're set up on rails

so that's also an option looks like my

guys are about ready

calling for hoist up here real soon

all right go ahead and pull back to my

second step and hoist up and then third

clutch and a lever 550

standing up so i'm going to trolley out

a little bit

just nice and easy get my swing over

swung a little bit

as i'm coming up and this is all a guess

from here

i'm going to slow down my hoist and it's

about to pop up

stop my trolley keep coming up

coming up we're gonna head down that

north wall

this is a decent stand far west

not as good as it gets but we're going

to go a long ways out so i'm going to

have to come in quickly

so you go into my third step which is

really fast on these

well it's not that it's really fast it's

the change between second and third is

crazy

now i'm going to start my swing because

i got power lines

on my left that i'm coming around so i

got to make sure i'm within a point

that i have marked out on the jib in my

head

where i need to go start my swing

when you start your movements you want

to get it moving

and then pick up the pace so i just

slowed down so i stay in a relatively

fast

base coming in then i slow it down the

idea is to keep some control over the

loading see that's drifting a little bit

so i take a little

more in just for fun

and i start my trolley out again

coming out kind of easy and then now

that i'm

clear of those power lines i can get

moving again

i'm not sure exactly which one we're

going to

get lined up in an area and just get out

their ways

one of the things you can see is there's

an orange

line running out there and that's within

10 feet of the power lines

these aren't actually high voltage lines

that we're dealing with out here

but they uh they are power lines so we

got to stay away from

them i'm a long ways from where i need

to be

so i'm going to start my down i slowed

down my trolley so i'm a ways away from

where i need to be

just getting it down a ways

my trolley means stop the trolley so

that's what i did there's a little bit

of drift in it it's column

so i'm going to need out you can see how

it's

not quite right taking a little bit of

the out that i know i need

even though he hasn't asked for it

and i'm probably going to need a little

bit more of my swing racks again it's

it's not straight angles it's a big

radius so it's a big curve you're

dealing with right

so i'll take nice easy bumps of swinging

to the right when he's ready and then

probably a couple bumps of trolley out

which

means just a little bit of upside

give uh nice and easy and

swinging back which counter torque

i know he was about to move out and i

set the brakes from contact

all right

yeah you're down now

you ready i might have walked on

cable down

when you're setting columns it's pretty

tight there's a lot of things to hang up

on

and so you have to gear down to a slower

gear it just won't run slow enough from

third clutch to

set a column or a pi laster like this

you can see that it's leaning out

which means that it's a bunch of weight

when it leans like that means there's a

bunch of weight that's

so the hoist up is kind of fast

even in that second clutch so i just

give it little bumps

on these old bears hoist down you go

straight to second step

unless you have a really heavy weight on

because that first uh

just really opens the brake it doesn't

really put power to the hoist

easy down inches

hi you can see my rigging starting to

get a little bit slack it's coming

in a little bit normally it's straight

out so it's coming in a little bit means

it's

and it's bouncing a bit and then you can

tell that it's getting loose

and that's setting a column on atari