Boom Lift FIRE! Can It Be Fixed?

My boom lift nearly went KaBOOM! How does a 3 section boom telescope mechanism work? I build a model and explain the mechanism in detail. Then we move on to inspecting and fixing the fire damage. Lots of wire repair, several hydraulic hoses, a grease hose, and some cleanup and...does it work?
Yes the wire I shortened was a FUSIBLE LINK. It did it's job and protected the rest of the harness. I will replace it with a fuse.
Part 1 here: • JLG Boom Lift Tear Dow...
Complete boom lift series here: • JLG Boom Lift
My parts supplier:
Bennett Equipment and Supply
864-277-7272
HEY ENGINEERS! - Regarding the chain tension, the tensioners are torqued to 50 ft-lbs, and it's a 3/4" 10 TPI thread. What would the max tension on the extend chains be assuming the lift is pointing straight up, the fly boom and basket weigh 1200 pounds, and there's 1000 pounds in the basket, for a total of 2200 pounds being lifted?
So far I've gotten several answers. One said that in worst case scenario there is a safety factor of 11.5, meaning the chain can hold 11.5 times as much as would ever be put on it. Another said that the maximum force the chain would ever see is 7000 pounds, while a single chain has a breaking strength of 23000, for a safety factor of 3+ even with only 1 chain.
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00:00 Intro
1:13 Start building model
5:45 Model demonstrated
15:35 Troubleshoot fire damage
17:15 Soldering wires
22:15 Meanwhile
24:00 Holding valves
26:24 How to raise the boom
31:20 Assess fire damage
34:35 Problem found and fixed
36:00 Assess hydraulic lines
40:40 New parts
41:32 Install new hydraulic lines and clean up
48:32 Getting it to work finally.

[@FarmCraft101]

This is turning out to be quite a job! The gift that keeps on giving... I hope you enjoy the video, and have an awesome weekend too! Next week, we will start rebuilding! Merch: www.farmcraft101.com. Support: www.patreon.com/farmcraft101 or www.buymeacoffee.com/farmcraft101.

[@davemi00]

I agree, it’s much easier to help a buddy who screwed up. Rather than fixing our own Mess. We probably have a Clearer Mind when helping out a buddy, too. Than on our Mess.

[@i--dont--know]

If someone wants to learn a bit more about pulleys:-> SmarterEveryDay kzbin.info/www/bejne/g2PaZIGQr7Wqha8

[@philmickey7247]

@@davemi00 Wow! Never thought of that. Clearer mind (focused) and a helping hand. Thanks!👍

[@TheLoxxxton]

I say more big momma footage!

[@Taskarnin]

Hey Jon, don’t ignore those spidy senses. If you don’t feel safe then do something about it.

[@CobetcknnKolowski]

Don't worry Jon, we all have trouble getting it up sometimes.

[@tallboy2234]

😂🤣😂😀👌

[@LinkinPark4Ever1996]

Speak for yourself!

[@artievan739]

Speak for yourself

[@edpoints1127]

2 popsicle sticks and some duct tape.... I'm cheap and never have a problem. 😅

[@time1800]

Mine works fine but finding quality vintage models worth pulling out for is a problem.

[@Ivansgarage]

I have been a welder for 50 years, one thing I have learned, welders start fires.. one thing I have allways kept around is one of those, refillable big can extinguishers, that you can charge with air and water, put a tire fill stem in the top of the can, they hold like 3 gallons, they always work ....

[@muchmuchmore]

I'm only 11 minutes in and your model really deserves a video of its own. I somehow doubt anyone has taken the time to explain how this works in such great detail. Maybe consider an additional video with a title that matches "How a boom lift works'. Awesome content as usual!

[@jdinnis]

The wire that melted near the starter is probably a fusible link. It is specifically designed to melt at a specific amperage to protect the rest of the wiring. You might want to replace that with a new fusible link instead of just shortening the old one. By shortening the wire, it will take more current to melt.

[@Disneymkvii]

I came here to say the same. That's a fusible link.

[@thomasoo5726]

Thought also about the rest of the wire inside the loom would be cooked. But if it was a fusible link he may be lucky and should replace it to prevent future failures.

[@raymanbecker]

For a lower budget fix, just a fused jumper.

[@jeeper360]

That's what I came to the comments for too. Agree that it might be a fusible link.

[@onthelake9554]

Yep fusible link , better replace it .

[@billnewman5900]

John you should have been a shop teacher. You are brilliant!!!!

[@advancednutritioninc908]

Anyone of us who actually have worked on equipment, has made a mistake like you did on the boom lift trying to get that pin out! You did a great job on the model - made it as simple as possible and yet it explains how the lift works! Stay cheerful you are doing great work! Thank You!

[@stansmith9639]

Jon, I just have to say you would make an amazing science teacher (or any kind). The way you're able to simplify things and get your point across so clearly is a talent of it's own.

[@MarshallBF]

I absolutely feel the same about fixing my own mistakes, and I guess many people that care about their time have it that way.

[@gerhardii]

So Glad I found your channel a while back. Its interesting, educational, and entertaining. Especially how you take the extra time to build things just to more easily explain everything. You tackle many more projects than I ever would like this BOOM lift.

[@FishFind3000]

Seeing stuff like this just makes me go back to the “if it ain’t broke dont fix it” “leave good enough well alone”

[@markmehner]

Or… if it ain’t broke, keep fixing it until it is

[@jefferywright4204]

Great job on the model and the repair. The absolute best part of this video is having our friend safe and in one piece explaining what he is doing. Stay safe, John, and enjoy your life with family.

[@facundofuentez582]

From disaster comes knowledge and cleanliness! I see that you handled both so well it impressed all the commentators! As always, thanks for letting us know that patience in finishing your project so successfully!😊

[@jonasowens27]

john is a master of all

[@KeyesAnthony]

Idk what it is about your videos but you have quickly become one of my favorite KZbinrs. I'm not a farmer or a machinist or a woodworker. I'm a CS student living in an apartment. Just something about your content and editing style that's got me hooked. Btw if anyone else loves this type of long form, builder / craftsman content, check out Sampson Boat Co's videos -- another awesome, high-quality channel (zero affiliation, just a fan).

[@mick-sk5lw]

Don't forget acorn to arabella!

[@myxfit]

@@mick-sk5lw was about to say the same thing :D

[@250aquatics4]

I’m not a mechanical person, I’m in IT, but I really enjoy your videos because you don’t just fix things, you also try and make them better while doing so. It’s a lesson I try to teach newer techs all the time, but sadly many times gets overlooked. Keep making things better! You’re doing a great job! Also, thanks for the explanation portions, even building the models, which was obviously overkill. It’s very educational, even for an old dog like me.

[@coldfront7914]

Me being a man that truly knows how to beat a dead horse 🐎, it never gets old hearing you go "click" when torqueing something to "spec". 👍🇺🇸

[@ClaytonRW65]

This is one of the most educational channels on youtube. I learn something new every episode. Thank you.

[@davey4731]

Been waiting for this video!!!! Fingers crossed you can fix it; felt the pain in your voice.

[@margaretwilkinson9140]

we are happy you didn't get buried financially with the small fire! live and learn. your skills are next level Dad.

[@judithdomangue9995]

When i was learning how to sew, and made an error, my teacher would tell me to rip out my mistake. I decided not to moan and groan (because I wanted to very much), and instead i made myself answer “Piece of cake”. This delighted my teacher so much, that I forever say it when I make a mistake I have to undo. It cheers me up. I would like to tell you that you are an excellent teacher and I enjoy watching your videos because I always learn something. You have a positive attitude and I really appreciate that. We all make mistakes and feel bad about it, but telling yourself its a piece of cake to fix, really does help.

[@wherekengo]

So glad you were able to troubleshoot and get it back together. I was super stoked when it turned over.

[@gerry343]

I admire your courage for even starting on the whole lift job. Glad you got the fire damage sorted. The boom model demo was very helpful.

[@robertbuskirk6854]

Very good explanation. Good work and clean up as well. Always find your videos educational and entertaining. Thanks Jon.

[@jonestd64]

The model is amazing, thank you for explaining how the boom works! Mistakes happen, but you weren't hurt. Many will learn from your experiences. I'm very grateful for the content you provide and your delivery. Keep up the great work.

[@jamesryan1064]

Wow. What an education. I don't own this type of equipment but thankful you explained how it functions.

[@dimetrekorsikov5643]

Anything can be fixed if you throw enough money into it. But heavy equipment can become a money pit way faster than you realize. I've gone through the same ordeal with a cat forestry rig. But the horrible thing was, it was brand new. $135,000 worth of brand new. At first I couldn't work long enough hours to handle all the jobs that were coming in. I mean i literally was working from sun up to well after sun down and even into the wee early hours the following day just trying to keep everything on schedule. The smartest thing we did though was pay off as much as we could while the money was there and not wasting the profit on things outside of the business. But after like 600 hours, it was one thing after another, and cat warranty paid for the majority of parts and labor, but you ain't making money while it's in the shop, but those payments are due no matter where that thing is sitting. After about 1200 hours we were about half way paid out of the loan, but the shop time was getting more and more frequent. And then after two years the warranty on certain parts was covered by both parties and if they had to send a mobile unit out to repair, they wouldn't pay for the drive time of the mobile unit. That doesn't sound too bad, except it was $600 dollars an hour and we're talking pulling hen's teeth trying to negotiate a reasonable outcome. Because my argument was basically, if the work was performed correctly in the shop, my rig wouldn't be broke down in some back woods area that I can't possibly load from. And then when it started turning into where I was paying more of the supposed warranty cost on parts, like $4800 for a rebuilt drive motor, that I had to remove the old unit, take to cat hydraulics rebuild shop , wait for a tech to disassemble the unit, assess the cause of failure, get they're diagnosis, take my bad unit and their paperwork to cat parts, go home install the new unit only to get charged full price for a REBUILT drive motor PLUS the mobile diagnostic was 1800 ...I was done. The honeymoon was over. Three months of filing claims going through arbitration with cat finance, cat tech support, cat district management, cat shop supervisor, cat hydraulics... I'm not joking. Finally ending up at about 50/50 on all the expense. I took in one final time while it still covered and told them every little bit picking thing that didn't work exactly like it was original spec and left it with them for two months. Got it back, parked it, listed it on Forestry Trader and first guy that called bought it two days later, paid off cat finance, and had about 42,000 left over. And it wasn't worth the hassle to have to go that route again. But to make a long story longer, now we buy used and roll the dice, invest in parts and do all the labor myself but they can get upside down real quick and then they're just an anchor looking for a hole to drag you down with them.

[@dustcommander100]

I can't imagine a better explanation of how the booms interact - and the model was way beyond the call of duty!!!!! Very cool!

[@Hans-ChristianSchwartz]

still amazed you got that damn pin out without calling for the mandalorian.

[@austinadventure]

The effort and detail of explanations of how things work is greatly appreciated, I use boom lifts and fork lifts quite frequently and it was awesome to see the in depth of how the design works. Thank you for showing that, and all the good work you do and taking us along. The cylinder flow depictions are very neat too.

[@Seton7588]

Your demo is amazing!

[@pingpong9656]

The concept explanation was BRILLIANT... I was scratching my until you explained that so well!

[@kramer00999]

a few decades ago in university the rule of thumb was factor of safety of 10 for lifting or overhead equipment that people are going to be around.

[@The-Deadbolt-Deputy]

I love that you made this model. I like knowing how things work. I love the way you break things down to be able to understand exactly how stuff works. This is one (of many ) reasons I love your channel! Thanks for that.

[@BoukeNagel]

Good job. I'm glad you were able to fix it 👍🏻

[@warbirdwf]

Everytime I think I'm a productive and active guy in my 50's, I watch your latest video and feel sedentary. Thanks! 😂

[@JMassengill]

Considering how bad it could have been, the repair wasn’t too bad. Glad no more damage was done, glad you are ok.

[@richardphelan8414]

John once again you pulled it off ,you are still one of the all around best mechanics I've seen and your teaching skills are better than most of the shop teachers I had in High school 1956 /1960 and I came from a predominately farming area

[@daichihayden]

I know your already done with the repair but taping a piece of rope or para cord to one end of the bad hydraulic line when removing would help when installing the new line. Basically just tape the new one and it will help pull the new one back through with the cord. Then you’ll be sure that it is routed the same as what you removed. I learn a ton watching your channel. I’m fairly new to rural life :).

[@firemanjeffgg2440]

One thing is for sure, this lift has been a source of endless content for you.

[@gregtheredneck1715]

The continuing saga of Rosemary's Boomlift.

[@yooloo7153]

Thank you for the videos! I really enjoy them a lot. And a special thanks for the model!

[@lawsondumonceaux124]

I loved the book lifts model. I am a student studying engineering and gear ratios were something we learned about. So cool to see something I learned in real life!

[@ohnoitisnt]

Vehicle lift tech here. This is the same mechanism as the chain over ram in your 2 post lift. Its done this way to get twice the lifting range out of the same size ram, for packaging reasons. Im glad you got lucky with the fire. I believe powder extinguishers are more dangerous than not having one because they never work. I use CO2

[@kennethellison9713]

This is exactly the way I take big projects. I get distracted playing with a different project that's way more fun.

[@jason01095]

Really great explainer with that model - thanks for taking the time to build and talk through it. Very interesting stuff. Glad you got through all the fire damage and are now back to what you were actually trying to do in the first place. Looking forward to the next one.

[@evilla7579]

Thank you for your effort to make a model. It really helps to understand the mechanical principles behind this massive project. Btw: problems, the various paths to solutions and the final solution makes great youtube content.

[@ptonpc]

The model was very much appreciated. As for 'boring'? At least it was not a case of "I need a new boom lift because my last one burned to the ground".

[@michelecrown2426]

So glad the fire damage wasn't any worse. And you were able to fix everything.

[@Popeyes66]

Great channel with content on a variety of things. I'm glad i stumbled upon it and subscribed around a month ago. Great videgraphy/editing , and the little mock up of the telescopic boom was so cool. Thanks .

[@CarltonDodd]

I learn a ton from your videos. My only tip on the wire repair is that if you stagger the joins, you don't end up with a big bulge in the loom. Did you remove the fusible link from the power lead by shortening it? Or, was the wire basically the fusible link?

[@FarmCraft101]

I don't think it was a fusible link. It just lost connection at the crimp with the ring connector. The other connection that looked burned was a bullet connector. Also there's a 30amp breaker on the other end of that wire when it enters the control box. You do make me think I should consider adding a fuse there though.

[@FarmCraft101]

Actually, after many people have commented that they think it was a fusible link, I'm going to have to take another look. Cheers.

[@JDsVarietyChannel]

After that scary fire, I would say about $200 and a days worth of labor was a huge relief. And yeah, I'm also the type that reminds myself how stupid I was while trying to get back where I should have been already.

[@larryfreeman7979]

quickly becoming one of my favourite YOu Tube channels. No nonsense, a bit of humour and great content.

[@douglasfitzsimmons654]

Great content as usual, this is one of the most informative channels on the tube, I love the humour and the sarcasm. Keep it up Jon!!

[@johnhampson7]

Really interesting video today Jon, this boom lift has taught you so so much. Keep up the good work.

[@wvpolekat]

The wire you removed to fix the no power problem at the starter is a fuseable link and not just a wire. It did what it was supposed to. Parts store should have them, common on older Fords. Great job with the model!

[@mrmerkin6203]

The best line from that last video ..... "That seems like an awful lot of smoke." Glad you got it fixed!

[@BrettsProstate]

Great visual demonstrations! And great video as always

[@Netbug]

35:06 "It didn't need to be that long anyway" Haha, yes it did... so you can repair it quickly. I leave all of my boat wiring 12" over for just this reason. Also having slack for pulling components out without disconnecting everything is nice. Be it for inspection or to replace something. Nice to see you really digging into this thing and getting it sorted.

[@johnfreiler6017]

Gotta agree. With all the moving parts on that lift, I predict that soon, he's gonna regret just cutting a foot out of that wire. He better order up a bunch of those nifty solder and shrink connectors so he can replace the wires he cut out.

[@FarmCraft101]

I did appreciate the extra length so it made it easier to fix! Thankfully, that harness was made longer than needed because they had different engine options and wanted to be able to handle all situations. I have plenty of extra length. Cheers!

[@Netbug]

@@FarmCraft101 Looking forward to the rest of the process, congrats on what you have accomplished so far. It's a big job.

[@mikesmith-yc3os]

the demo of the boom with the timber is impressive

[@zonchanch5]

I love your content. I showed my dad, my grandpa (82) and my kids (5 of them). I enjoy all of your explanations and feel like this channel is worth far more than a college degree for anyone wanting to learn stuff from basic to complex. THANK YOU for everything.

[@matt_1984_]

"In last weeks video you saw me take my boom lift apart.... and start a fire"

[@FarmCraft101]

Oh, yeah, that too... ;-)

[@evilkidd174]

Farmer Jon another 10/10 would watch again. Now to address the elephant in the room, that mortal eternal enemy of the farmer, fire. I seem to remember an older video where you installed a firehose for up close to the house. That covers that, but what if you have another situation or sudden smoke from the wood line. Maybe a water tank with a pump mounted on a trailer or in a 4x4 truck for just such a bad day. Just a thought or a seed of a future project.

[@johnmchardy1229]

As a kid I did this in a test at school. I looked at the diagram and instantly knew how it worked. My brain is able to do that. I really like your channel and learn how to do do things properly. Especially driving a car. Be conscious at all times. Stop or slow down when you can see that there may be a situation up ahead. Better to be conscious than dead.

[@1KWattmizer]

You’re excellent at trouble shooting your Boom wiring, welding and more. Am enjoying all your videos, sir. You have my attention. 😊

[@tmscheum]

Anyone who hasn’t paid a “stupid tax” isn’t doing anything. I know I’ve paid my fair share of “stupid tax” as my wife is fond of pointing out! Keep up the great work Professor!

[@brian_2040]

Hey John, I've been waiting for this video. And fellow channel watchers, farm craft community, I hope y'all understand just how much work this video was to make, much less the lift repairs as well. It's one of the main reasons I joined the channel, Mr John is someone like me doing repairs around the farm. Thanks again Mr John,

[@bobuk5722]

Safety. I'm a great believer in 'Defence in depth'. You did the correct thing supporting the boom. Imagine being trapped under it folks being slowly squeezed to death......

[@js8039]

Nawwww. But you did give yourself an excellent stress test in the last video. Coronary artery disease and arrhythmia are low risks being you made another video this week.

[@wraithconscience]

You're always exiting, John. You know what they say, "Virgina farmers can always get it up!" But seriously, the explanation of the boom was wonderful. And though surely tedious for you, the repair of the wiring loom and hoses I found fascinating. Amazing!

[@carsonwashburn1]

Your ability to just get work done with little complaining is amazing. Many of the specific tasks you do in each video would be a massive endeavor for anyone else. I really appreciate your channel!

[@lordFury]

I personally like this video. I think it was good to watch a video where somebody cleaned up their mistakes and showed that they make mistakes. Fire damage can be a daunting experience and cleaning it up is very hard.

[@supertekkel1]

I went and bought 3 fire extinguishers after seeing your fire video. The newest building on our farm didn't have any yet. Now it does.

[@bandiclass625]

There hasn’t been a week where watching your video hasn’t taught me something. And I can’t say that about many other experiences I have. Thank you for sharing your knowledge and “adventures.”

[@henrikhavelindberg3268]

Good show of perseverance! We all mess up to some degree on occasion. Very rarely does it help to cry and moan about it. Let's get the job done 👍

[@TommyBradham]

Every since I started this playlist, those chains have been bugging me. I've googled for an hour trying to understand it and this video explains it perfectly. Thank you for this and all the other videos

[@Wijnamar]

Less damage then I expected, fairly easy fix. Just another great video.

[@dalebailey1844]

Up and down as many times possible > YOU GET YOUR CADIO IN AND YOUR DR. WOULD BE HAPPY. GREAT STUFF KEEP UP THE GOOD WORK, THANKS

[@martinvs6415]

A lot of work to fix one boo-boo. You have paid the price, the machine forgives you. I tell you are amazing and very patient too. Love watching our videos and thanks for explaining the workings of the boom with your model. And reading about the weight/lift/extension capacity, I tend to agree they rate them a lot lower than the full capacity limits. It is called insurance and you can't come after them for using the 'maximum' allowed.

[@dirkkelly9596]

Jon when I was a young man I was told that you learn from your experience and mistakes,several seasons lived i have found it’s a lot less expensive and painful to learn from other’s. Thanks 😉

[@python3574]

The fly boom is not moving twice as fast as the mid boom. They're both moving the same speed, BUT the fly boom is moving in reference TO the mid boom. When the booms move, for instance for 5 seconds, the mid boom has extended 5 ft. The fly boom has also extended 5 ft ....from its rest position in reference to the mid boom. This is because the fly boom is attached TO the mid boom, and the mid boom is attached TO the base boom.

[@geraldhale8006]

You bypassed the fusible link. Recommend replacing fusible link to keep the rest of the wiring harness from burning up. Great video. Thanks

[@RobertKihlberg]

I've been following your videos for the last couple of months and found some gems of knowledge in your earlier videos as well. I must strongly complement you on your content and your productions - this video is a prime example. You combine the real world practical work with the theory behind it in a very compelling way! Also, going the length to build models (and even paint them) to further explain what is going on and mapping each critical point from the model to the real thing in a very good way! Very impressive and ambitious! I also appriciate how transparent and honest you are with things not going perfect all the time. Keep up the good work!

[@wmweekendwarrior1166]

Holy cow, way above and beyond to explain the physics of that boom. Bravo!

[@EssGeeSee]

Great video. I was enthralled throughout. I was an aircraft engineer for 40 years. I could watch these vids all day.

[@valm7247]

One of the best channels on KZbin hand's down.

[@Artholos]

When I saw the diagram of the boom construction I figured it out pretty quick! It’s exactly the same as a Lego siege tower set I had as a kid, which I was very fond of because it had such a neat mechanism 🎉 Lesson is play with legos and the world will forever be your play place!

[@ulflanz7334]

You have so much to do with repairing the boom lift and you take the time to build that function model. Only this deserves a lot more thumbs up than one can place here 👍👍👍👍👍👍

[@dannyhartline2648]

You are proof positive John … the boom is absolutely not idiot proof!!! Well done …

[@stevewilke8524]

The model is great! Nice of you to go to such great lengths to explain the boom's workings. A long time ago someone told me that if you really want to learn something, teach a class on the subject! I see you are learning lots!

[@akquicksilver]

Getting real! Really appreciate the model build and expo.

[@bobcarry4820]

I hate it when I am doing a good thing (maintenance) and I break something. Have a good weekend. Thanks for the video.

[@frizzletits8511]

22:00 putting the wire loom on is what made it not work 😅- it’s like the pc building curse if you put the side panels on before you turn it on-❤

[@ilovelamp61]

You would’ve been a PHENOMENAL shop teacher.

[@flatlander523]

I watched this video yesterday and I am super glad you got it repaired. You are one savvy dude. Although I don't usually callout folks on safety issues, after my foolish use of a step ladder last Sunday and falling from my step ladder when it came out from under me, I feel compelled to say something. My ladder was sitting like yours at 49:13 and I started to step off into my boat at about 3 steps, the 2 feet on the ground slipped and down it went followed shortly by yours truly right on top of the ladder. Bottom line, I had no phone to call for help, I yelled for help long enough a neighbot came to my rescue. EMS to Trauma room; two broken ribs and now laid up for 4 to 6 weeks. Be careful on two legged step ladders and you might look into one of those fall alerts. Stay safe. Ken Davis

[@djtopherau]

I hope you don't take this the wrong way, but I'm somewhat glad you keep breaking things. I say this because, fixing this lift has been a fascinating process to watch, between this and the excavator these are some of my favourite videos on KZbin. I have an engineering mindset and I love repairing broken things, but these are items that the majority of people will never really get the chance to play around on, or see how/understand how they work and its all too unfortunate that in this day and age people are more likely to throw stuff away or send it to someone else then repair themselves. its a lost artform that need to come back. Great Video as always

[@MehmetSutas]

I get bored and can not watch even 30 minutes long shows, but I do not realize when did your video start and when it ended. It is calming and spectacular everytime.

[@jameshedrick605]

Looks like the wiring in my truck after something shorted out under the dash. I'm currently working on rewiring the truck. I ordered some of those solder stick connectors

[@akersjon278]

I agree completely, there's few things that makes me as mad as having to do a lot of work, waste time (and buy stuff), just to get back to square one....

[@rappermusician]

Love the demonstration of the functiionality - just a simple 2 to 1 pulley -who new?! great!

[@lukejolley8354]

This video is awesome! I'm pretty familiar with gear reduction and pulleys but I didn't find this boring, brings the whole boom lift ordeal around to a teachable moment.