The Community Guide

c/crane-operators

5

lee.casey•11h ago

Saw a slick trick for blind lifts at a site in Tacoma last week

They were setting a big HVAC unit on a roof with zero line of sight from the cab. The signal guy had a cheap walkie talkie with a headset, but the real move was the spotter on the roof. He had a small mirror taped to a broom handle, holding it over the edge so he could see the load and the hook. He just talked the operator down inch by inch. Never seen that before. Anyone else have a good workaround for blind spots?

1

gavin80•1d ago

Talked to a guy running a tower crane in Boston about his pre-op check

He told me he spends a full 20 minutes just on the wire rope inspection, looking for a single broken strand. I used to think that was overkill, but he showed me a picture of a snapped line from a job where they skipped it. How much time do you guys actually put into that check?

8

the_joel•2d ago

A simple rigging plan turned into a two day fight with a stuck load

I was on a site in Charlotte moving a big generator. The plan was to lift it, swing it over a low wall, and set it down. We got it off the ground fine, but when we started the swing, the load hung up on a steel beam we all missed. It was maybe three inches of contact, but it was stuck solid. What should have been a three hour job took two full days. We had to bring in a second crane to lift from the other side and free it. Has anyone else had a small clearance issue blow up a whole schedule like that?

23

luna550•3d ago

Switched from a two-block to a single line for a tight lift in St. Louis and it actually went smoother

Had a job last Tuesday where we needed to set a heavy AC unit on a narrow rooftop downtown. I was sure we needed a two-block setup for the extra control, so we rigged it that way. But the swing was so tight between two other buildings that the second block kept getting hung up. My spotter, Mike, said to try it with just the main hook and a single line to simplify it. We did, and with slower, smaller moves, the unit went up and over clean in one shot. I guess sometimes less gear really is more. Anyone else run into a spot where simplifying the rigging was the better call?

1

matthew703•5d ago

Rant: A simple load chart check turned into a four hour delay

Had to set a big AC unit on a roof in Phoenix last week, and the chart said my 80 ton crane was good for the radius. What I missed was the tiny note about needing the full counterweight setup, which we didn't have on the truck. Spent the first hour just figuring out why my numbers were off. Then it took three more hours for the shop to run the right counterweights out to us. All for a lift that took 20 minutes. Anyone else ever get tripped up by a footnote in the manual?

15

hugo_craig11•5d ago

Vent: I was sure those new wireless load indicators were just a gimmick until I tried one on a tricky blind lift over in Springfield.

The real-time vibration alert on the ProLift 8000 caught a slight swing I couldn't feel from the cab, which convinced me to stop and re-rig before we had a real problem.

17

wright.rowan•6d ago

Saw a tower crane operator in Chicago working with a tablet instead of paper charts

I was on a site visit in the West Loop last month, and the guy running the big Liebherr was using a digital tablet for his load charts and lift plans. He said it was faster and he could zoom in on details. But the old foreman on the ground said it was a 'glorified toy' and that paper never crashes. It got me thinking about tech on the job. Do you think digital tools like that are the future, or is sticking with paper the safer bet?

25

jamessanchez•7d ago

Warning: My 5-ton hoist cable snapped on a Tuesday morning lift in Tacoma.

Honestly, I had to drop the load onto a prepped gravel pad and shut everything down for a full inspection, so has anyone else had a sudden failure with a cable that passed visual check just the week before?

3

the_logan•8d ago

Got caught in a sudden 40 mph gust while setting a beam in Cleveland last month.

Had to drop the load on the deck and swing the boom to weathervane, something they never really covered in my apprenticeship. How do you guys handle wind shifts on high-rise sites?

12

elizabethhart•10d ago

Tried a new way to check my load chart on a windy day

I always thought the wind rating on the chart was a hard stop, but last week in Kansas City with 25 mph gusts, I double-checked the crane's computer against my manual. The computer gave me a green light for a lift the book said was a no-go. Turns out the computer factors in my exact boom length and angle, which changed the whole calculation. Has anyone else had the on-board system disagree with the paper chart?

16

mitchell.wren•10d ago

Just realized half the guys on site think a 5% grade is flat ground for crane pads

I was on a job in Phoenix last month where the ground crew kept saying the pad was 'good enough' with a visible slope. I pulled out my level and it was over 4 degrees. That's not a pad, that's a slide. I've seen a 90-tonner shift almost a foot on a setup like that after a rain. It's basic math, people. If you can't be bothered to check with a proper tool, you shouldn't be setting the crane. Who else has had to shut down a lift because someone eyeballed the pad prep?

12

dakotaknight•14d ago

Pro tip: That 12 hour shift in the rain last Thursday was the best day I've had all month.

Everyone complains about wet weather, but the visibility was perfect and the steel was cool. We set 18 beams for the new hospital wing without a single re-pick. Who else finds a steady, light rain better than a hot, windy day?

26

casey_torres60•15d ago

Got told my tagline swing was too aggressive on a tight site in Phoenix

An old hand watched me work and said, 'You're fighting the crane, let it do the work.' I started using way smaller joystick moves, like just a quarter inch for fine control. Anyone else have to unlearn being too rough with the controls?

32

the_mark•19d ago

Vent: My old way of spotting a load was costing me minutes on every pick

For years I just used my eyes and a hand signal, but last month a new guy on the crew in Tacoma showed me his laser pointer setup. I tried it on a steel beam lift, and we went from a 15 minute setup and check to under 5. The difference was having a clear, bright dot the rigger could see from 80 feet away in full sun. Anyone else made a small gear change that cut a ton of time off a routine job?

2

tyler_hernandez•19d ago

Spent a whole shift just trying to get a level lift on a sloped site

Last month I was on a job in Tacoma, setting steel on a site with a nasty 5-degree slope. I thought I had my outriggers dialed in, but the load kept swinging about an inch off true when I lifted. I spent nearly 7 hours messing with it, adding cribbing, adjusting pads, even re-checking the load chart twice. Turns out, the ground under my front right outrigger had a soft spot I didn't feel during setup. A guy from the concrete crew walked over, suggested I dig down a foot and pack it with some crushed rock from their pile. Did that, and it was solid in 20 minutes. Felt like a total rookie move. What's your go-to method for checking ground conditions on uneven sites before you even start setting up?

19

claire_schmidt3•20d ago

Can we talk about a load chart call-out I got in Fort Worth?

My spotter said, 'You're not adding the jib weight to your total,' which was right. Now I always check that line first, anyone else have a simple check they added?

1

nathanh75•21d ago

Pro tip: skip the cheap third-party load charts for your old Manitowoc

I dropped $150 on a set of aftermarket load charts from some online shop, thinking they'd be fine for my 1988 4100W. The print was fuzzy on the critical radius lines, and I had to shut down a lift last month because I couldn't read a 40-foot mark clearly, costing me a full day's pay. Who has a reliable source for clear OEM charts for older rigs?

29

emma_smith•22d ago

A rigger in Tacoma said something that made me stop using my phone for load charts

We were setting a 20-ton AC unit on a roof and I was about to pull up the chart on my phone. He just pointed at the paper chart in the cab and said, 'Batteries die, but that doesn't.' It was so simple, but now I always double-check with the physical copy first. Anyone else have a backup method they swear by?

8

victor_taylor32•22d ago

A gust of wind in Denver last month nearly swung my load into a scaffold.

I was lifting a steel beam about 30 feet up when a sudden crosswind caught it, and my spotter yelled 'Hold!' just as it started to drift. I had to swing the boom opposite the wind and lower it fast to avoid hitting the workers below. What's your go-to move when a load gets unpredictable like that?

24

charlie269•22d ago

Had a close call with a power line on a job in Tampa last spring

We were setting roof trusses on a house, and I was focused on the load. My spotter yelled just as my boom got within maybe 10 feet of a line I didn't see. We stopped everything right then. My boss made us do a full site walk with the whole crew the next morning to mark every single hazard. Now I do that walk myself before I even start the truck, no matter how simple the pick seems. Anyone else have a rule they started after a near miss like that?

17

the_vera•24d ago

Overheard a new guy call a load chart 'just a suggestion'

I was grabbing coffee at a site in Tacoma last week and heard a young operator say that to his spotter. He was joking, but it made me think. When I started, my old boss made me memorize our 50-tonner's chart before I even touched the levers. Now I see guys relying on the computer screen first, which is fine, but that basic paper chart knowledge feels like it's fading. Anyone else notice this shift in how new folks learn the basics?

12

emma_perry•24d ago

Changed my mind about wind limits after a close call in Galveston

Was working a tower crane on a hotel build near the port, gusting maybe 25 knots. I thought the limit was just a soft rule... then a sudden crosswind caught a long concrete panel I was swinging. It started to spin, fast. I hit the emergency stop and let it weathervane into the wind to settle it. That extra five minutes to secure the load properly would have saved a real bad day. Anyone else had a wind moment that made them stop and think?

11

caseyrivera•28d ago

Can we talk about the difference in swing control after switching from a 90s model to a new one with a joystick?

My old rig had a two-lever setup that felt like wrestling a bear, but after running a new Link-Belt 70-ton with the joystick controller for a month, my precision on tight picks in downtown Philly has improved by what feels like 40%.

1

the_nina•29d ago

Just found out the Liebherr LR 13000 can lift 3,000 tons

I was watching a documentary on building wind farms and they mentioned this crane. I had to look it up because that number seemed crazy. It's used for offshore stuff mostly, but seeing the scale of it made me think about how much our gear has changed. Anyone here ever worked on a project with one of those monsters?

16

emma_smith•29d ago

A rigger in Philly told me my hand signals were 'lazy' and costing us time on the lift.

I started making every signal sharp and exaggerated, and we shaved 20 minutes off a standard 4-hour pick last week, so who else has gotten a blunt tip that actually worked?