Great stuff. Random question and probably too specific, but would you ever use both flat and tapered wheels on either side the same end truck on an under running bridge crane?
Most, if not all, wheels used in underhung applications these days are dual-type, flat and tapered. This allows them to be used on W (flat tread beams) or S (tapered flange beams). However, when dealing with patent track, the wheels need to be designed specifically for patent track (they will be made of hardened material) and will always be flat.
I had the cable fail on the hoist of an overhead crane. The failure happened at the equalizer pulley on the top of the hoist. Inspect as directed in the manual. RTFM!
Very well said, Greg. It's easy to get into the trend of, "it's fine, let's get this done." But you've got to inspect as directed by the manual. I'll see if we can start working RTFM into some of our projects, lol. - Devon
Surprised there’s no mention of a brake slip or a non operating holding brake.. has to be the 2nd most common issue I see as a technician, 1st would be as mentioned “blowing fuses”
Hey, Haassan, thanks for the comment! If five different companies put this list together, I'm sure they'd each have their own rundown of what they see on a regular basis. We pooled info from our technicians, inspectors, and sales specialist to put this list together.
I went to a gravel pit, crane was down, inspected the thing, notice all the wheels where just wore out, double girt top running hoist, wheels shot and track shot, decided to bring it down to the ground for overhaul, on the way to to the ground this thing looked like a banana, went to the truck got a ball of string, end to end 47"span, 20 ton crane, was a 4""belly my boss told me to get the touch off the truck, cut this thing in half two 50', 50 inch beams, so I started the company boss lost his mind! I, never will I forget the look on the faces when we condemed that thing on the spot hey you see frayed rigging you cut in half, right, same difference.
Hey Joe, thanks for the comment! Sounds like one heck of an experience. Great job bringing the crane down and doing a clear inspection. Gotta make sure your worksites are operating safely. Best, Devon
Good day sir what is Tha main problem of the double grinder crane, the speed is to slow. 2 Motor is new.. I hope u can answer my question.. Tnx.. God bless you..
Hey Muneeb, thanks for watching! We used this image: ruclips.net/video/uO4WfYDOWxo/видео.html (33 seconds in) to showcase what we mean by frayed wire rope.
If its frayed cable that means the smaller strands wound around the cable will be broken and sticking out like sharp thorns everywhere its pretty clear when you see it
Hey Zohaib, anytime you're having issues with the controller not responding to your input commands, you're going to want to schedule a service appointment asap.
Sounds like your up direction contactor/ relay unit is stuck in the on position. Could be a fault on the push button control or in the relay unit itself.
Oh definitely not, and I'll never claim to be! But fortunately, when I'm working on these projects, I meet with our Service Technicians and their managers to put these lists together.
These comments , they all need an experienced electrician . Company I worked at started bringing in 3rd party inspectors . The plant was shut down in 2020 . Way too many really smart paper pushers
Great stuff. Random question and probably too specific, but would you ever use both flat and tapered wheels on either side the same end truck on an under running bridge crane?
Most, if not all, wheels used in underhung applications these days are dual-type, flat and tapered. This allows them to be used on W (flat tread beams) or S (tapered flange beams). However, when dealing with patent track, the wheels need to be designed specifically for patent track (they will be made of hardened material) and will always be flat.
@@LiftingandRigging Thank you. Keep up the good work!
Lovely information
Thanks for watching!
I had the cable fail on the hoist of an overhead crane. The failure happened at the equalizer pulley on the top of the hoist. Inspect as directed in the manual. RTFM!
Very well said, Greg.
It's easy to get into the trend of, "it's fine, let's get this done." But you've got to inspect as directed by the manual.
I'll see if we can start working RTFM into some of our projects, lol.
- Devon
One of the most critical, yet often overlooked areas.
There was a r&m hoist that was prone for that
Surprised there’s no mention of a brake slip or a non operating holding brake.. has to be the 2nd most common issue I see as a technician, 1st would be as mentioned “blowing fuses”
Hey, Haassan, thanks for the comment!
If five different companies put this list together, I'm sure they'd each have their own rundown of what they see on a regular basis. We pooled info from our technicians, inspectors, and sales specialist to put this list together.
Hey HR! I'm starting as a Crane Operator this month, any tips?
Vhots need adjust the limit switch on the 5 -ton ekectrical keane?
I went to a gravel pit, crane was down, inspected the thing, notice all the wheels where just wore out, double girt top running hoist, wheels shot and track shot, decided to bring it down to the ground for overhaul, on the way to to the ground this thing looked like a banana, went to the truck got a ball of string, end to end 47"span, 20 ton crane, was a 4""belly my boss told me to get the touch off the truck, cut this thing in half two 50', 50 inch beams, so I started the company boss lost his mind! I, never will I forget the look on the faces when we condemed that thing on the spot hey you see frayed rigging you cut in half, right, same difference.
Hey Joe, thanks for the comment!
Sounds like one heck of an experience. Great job bringing the crane down and doing a clear inspection. Gotta make sure your worksites are operating safely.
Best,
Devon
Hey white stains, any tips on a new Crane technician? I'll be trained by the OGs there but any tips beforehand would be awesome!
Good day sir what is Tha main problem of the double grinder crane, the speed is to slow. 2 Motor is new.. I hope u can answer my question.. Tnx.. God bless you..
You need a full time experienced electrician
Please elaborate the steel wire rope failure "Frayed"? with pictorial views.
Hey Muneeb, thanks for watching!
We used this image: ruclips.net/video/uO4WfYDOWxo/видео.html (33 seconds in) to showcase what we mean by frayed wire rope.
@@LiftingandRigging sorry but still I didn't get clear about frayed in particular
If its frayed cable that means the smaller strands wound around the cable will be broken and sticking out like sharp thorns everywhere its pretty clear when you see it
Hosting crane did not move down & up...repaired by changing transformer busted. But didn't working up. What is the problem
You need a full time experienced electrician
Sir my crane problim push to up go up I can reles push buttons not stop what a problem
Hey Zohaib, anytime you're having issues with the controller not responding to your input commands, you're going to want to schedule a service appointment asap.
Sounds like your up direction contactor/ relay unit is stuck in the on position. Could be a fault on the push button control or in the relay unit itself.
But slo speed stop just 2nd speed Sam Tim not stop. I can push down after stop up side
Don’t suppose your a tech that checks people’s cranes for a living lol.
Oh definitely not, and I'll never claim to be!
But fortunately, when I'm working on these projects, I meet with our Service Technicians and their managers to put these lists together.
It's only dangerous if you can't run fast
Need testing 25%
These comments , they all need an experienced electrician .
Company I worked at started bringing in 3rd party inspectors .
The plant was shut down in 2020 .
Way too many really smart paper pushers
How did your company perform its periodic inspections?
Crane up down not working