THERE IS A LOUD GRINDING NOISE COMING FROM THE ROOF
ฝัง
- เผยแพร่เมื่อ 23 ส.ค. 2024
- It's honestly been a good 5-10 years since I have changed bearings on one of these fans, they usually just replace them, surprisingly the process all came back to me.
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“Have you got a screwdriver” proceeds to use it as a prybar/chisel. Love the honesty about what everyone does in the real world.
Just imagine working for someone that lets you take pride in your work and not have to rush to get as many jobs done. I'd rather take my time and find all problems with time to address them than to just put out fires. Bet Chris is a great boss. Robert is one lucky dude.
Yup, the best way to achieve a big picture diagnosis
@@DecarloRW absolutely within reason of course but your absolutely right
You’d rather take your time beating the mess out of that shaft and install some bearings that should be ok?
It's not just that it's shows the tech up and the company if you have to call them up 15 times for the same issue
@@hvac_installer_guy9423 pretty sure he owns the company ;)
When people act like the bill is too high send them a video like this.
"You don't wanna scar the shaft" advice for life guys 😎👍
That grease must have smelled lovely when you hit it with the torch 😂
"You need to be careful not to damage it in case you end up not replacing it" *proceeds to light it on fire* lol
Watching somebody else struggle with a rust-welded bearing made my day. Thank you, and I'm sorry.
While I'm not your target audience, I liked how you told us what the ideal situation was, and then we got to see what actually happened. If nothing else, somebody coming into the business could be doing this job & remember that it doesn't always go to plan.
I kind of like seeing how you work through small problems like the stuck bearing. Not everyone has the time to watch a near hour long video, but when I get the time, I enjoy longer videos.
Never thought I'd see a ball joint separator (aka "pickle fork") used in the HVAC field, but the results speak for themselves!
I will discuss this on my Livestream this evening 3/27/23 @ 5:PM (pacific) on TH-cam come over and check it out th-cam.com/users/live1yqPFoBgFdA
I thought I was the only one who carried a pickle fork 😂
As an occasional thing this 'behind the scenes' version does work. I'm not sure it'll be popular if you do it every video due to the amount of 'dead time' rather than your normally much more condensed format, but it was really good seeing the interactions between you and your staff.
I watch you everyday since I was 10 years old and you
made me learn a lot like 3 phase power and the compressors
dude you're breaking my heart smashing that nice screwdriver about with a mallet
The thing that I appreciated most about this video is seeing how you you interacted with your coworkers. The addition of your co-star, if you will, I feel really reinforced the principle of teamwork lead to great outcomes and that it's really not all just a one-man show. Thank you guys for what you do, it is greatly appreciated. 👍
I really appreciate the honesty of banging and anger lol. It's a day like that sometimes and no techie is alone with that. Extra relatable after Thursday's late night job
“Percussive Persuasion” Love it. Love the videos.
Have a great week guys
I really appreciate seeing the entire overhaul on something like this, start to finish. You could trim some of the process of unsticking the old bearings, but I can also just scrub forward in the video if I don't want to watch it.
Nice to see you had to wear a light jacket, live in Vegas so know the heat thing. Nice job with explanations for those who needed it. Good video.
Watching you struggle with that bottom bearing, it's pretty clear what the problem was: You were not nearly angry enough at it.
Not that I don’t find myself glued to your other videos; I really enjoyed the high detail format, it flows well. Spending 15 years in the field (electrical) I eventually “progressed” to desk jockey I can’t tell you how much I miss working in the field. They say working in the office is safer and easier on the body but having done it now for 5+ years I don’t agree. I think it’s worse for the mind, body, and soul.
I enjoyed seeing your tech. And you working with him.
Always use your helpers screw driver if your gonna use it as a pry bar. Classic tip
The previous company I worked for, I did a lot of repairs on a lot of kitchen ventilation equipment. It was fun stuff I miss it. I wish I was there helping you Chris. Thanks for your videos
Good stuff. I enjoy these videos. I have no idea what you’re doing but I like how you explain everything you do. Gives me a better understanding of your job. I like how detailed you are and I can tell this is how you do it outside of the camera.
Good job chris I use to have too change pillow block motor bearings all the time when I work as an industrial maintenance man for 10 years. We had to freeze bearings sometimes to remove them
Great edit, loved seeing your fault finding and thought process as you work.
I have always used a Proto wheel puller to remove blower bearings, quick and simple.
The arms bolt together and the reach is about 18” to 20”.
No cutting, no heat. I’ve had mine for 45 yrs.
Good showing of what is involved - and I have seen most of your vids over the past 2-3 years.
Really helpful video for someone that has never done a bearing replacement before
Appreciate you showing us how you got through all that! I’ve never had to replace those bearings….. yet! 😂
Hi Chris!
Really enjoy seeing the extended version of the video, keep doing it.
Regards from 🇵🇹
Awesome video bottom bearing was a pain I like how you explain everything
You can also notch the bearing race with the grinder and then strike the cut with a cold chisel to break it open as they are so hard and will be prone to crack if forces are right.
Pretty hazardous from the sharp flying pieces of steel aspect, but it can open the bearing race without cutting all the way into the shaft.
Chris really knows how to rub that shaft clean.😉🤣
Hi Chris, many thanks for posting this video. I'm glad you tried a different style, I really like the more in-depth videos. Well done!
So nice to see other professionals using the side of the mallet.
Definitely like the long format videos! Please keep making them.
Great stuff Chris! I really like the way you made this video.
Nice work Mr Chris 💪💪
Speaking of fan wheels, we were in need of new motors for our industrial pressure washers that we were upgrading from gas, and found two NOS Century motors, and had to have the aluminum fans removed. They'll never be the same. These were 7.5 HP, 440 vac. Since these motors sat outside in the weather, they needed new bearings, but they were a lot less than off the shelf, and the boss was happy with the outcome.
The term is: polar moment of inertia. 8:11 I'm glad to see you have good help!
Thanks for the great video. Replacing exhaust fan bearings has always been a bit intimidating for me, especially on those supreme grease blaster exhausts. Those things weigh a TON.
I liked seeing the whole working process, made me appreciate HVACR techs even more 👍
Coming back to this after a "Simple sink repair" turned into replacing the whole sink XD. The strainer baskets have nuts holding them on, and all the teeth sheared off, so there was no way to remove them. Entire reason for the repair in the first place is that the original installed didn't line up the pipes correctly, and there was weird strain on the couplers. One sheared in half and the drain didn't hold water any more. Rather than try to line the pipes up, which literally just took loosening the couplers and wiggling them a bit, *They wrapped coat hangers around the PVC to try and compress it*
13:27 I know Chris normally doesn't like to show his workers on cameras but I think its cool he did here and you know his "robert" here saw this video he would be proud to be in it and what he is learning. Its also cool to see multiple people sometimes instead of just chris all alone.
I love the new kind of video. I am a technical person & I know the pain in the butt of the bearing removal & whatsoever shenanigans...
Overall enjoyed the video😊
Nice professional repair
I much prefer this style of video. It's cool seeing the process.
Bearing jobs can be frustrating at times and fight you every step of the repair. Changed out many on various types of equipment. Thanks for sharing Chris
Since the whole bearing assembly is removed I would have considered using a chisel to crack the bearing house and bearing races. After all those items are relatively brittle.
@@ehsnils I've done it that way as well. I've punched all the ball bearings out of the race and was left with just pulling the bearing housing off. Many ways to get stubborn bearings off a shaft. Some days one way will work, when others it wont. Hell ive even used our pipe freeze kit to shrink them to get the new one on too.
@@ehsnilsit's because the races are hardened so much
The benefit of aluminum is that it does not produce sparks when high speed aluminum hits aluminum. So fan manufacturers use aluminum in grease rated fans as a safety feature whereby if there ever is contact between the rotating fan and the stationary body it will not spark and ignite the grease on fire.
Slight correction. It is not the sentrifugal force you are using to get it of. It is the mass of the wheel and thusly momentum you are using. I have used the same teqnuicke to snug up wheels on cars (yes I always go over them after the car is on the ground) but to get it sort of tight, it works. And to loosen too if it is not too tight.
This is also why impact guns are so effective on wheels, even if it is off the ground. You hit it to loosen, it is so fast that the inertia of the wheel keeps it still enough to loosen. Or tighten.
english?
* centrifugal
I think the term you're looking for is "angular momentum". Something heavy wants to keep running at the same speed (full stop is also a "speed"). That applies to straight line motion as well as turning motion.
@@russellhltn1396 the correct term should actually be kinetic energy. Angular momentum is the resistance of a spinning object to changes in its plane (moment) of rotation.
I work with a lot of bearing housing before and the way we used to take the inner bearing out when it was hard to removed. We used a small can of 134a and spray the shaft until it was frozen and that will make it really easy to remove any old bearings .
I personally liked seeing a 3rd person view of you working it’s interesting and cool to see you working through the problems
I love watching it, but boy I dont miss those greasy days.
I will discuss this on my Livestream this evening 3/27/23 @ 5:PM (pacific) on TH-cam come over and check it out th-cam.com/users/live1yqPFoBgFdA
If I ever have to replace a bearing, this video will help
Like the format. Keep up the good work sir! 👍🤠
Thank you for sharing. Seems that you're fighting with these bearings and with all the dirt & grime nonstop
You guys did excellent work on that exhaust blower please do more of these videos
I personally like you showing the work, would love for you keep doing this
Over the years I have found that Bahco pliers wrenches are better than chanelocs
There is a fan on something at one of the buildings next to where my grandmother lives now which you can literally hear not only 3 blocks away but half way across town.
Chris - SKF TKBA 40 Red Laser V-Belt Pulley and Belt Alignment Tool I liked this style of video, liked it a lot!
yard stick.
I will discuss this on my Livestream this evening 3/27/23 @ 5:PM (pacific) on TH-cam come over and check it out th-cam.com/users/live1yqPFoBgFdA
Looked good, worth the time for a different type of repair than you usually do.
There's an easier way to remove that bottom bearing or other bearings. Remove the bearing shield. Break the bearing race by punching, drilling, or prying. You can remove the bearings which will allow you to remove the bearing flange and outer race. You can then remove the inner race in whichever convenient method that your prefer. I have used this method many times. Hmmm, you might want to invest in a set of pulley/sheave pullers. Perhaps some laser pulley alignment too. Though old school methods are always good to learn.
Just rewatched the video. On the taperlock, there will be two other holes, threaded. These are used to disengage the taperlock from the pulley.
Just re-rewatched that section. Looks like there are no holes. My mistake.
Pardon. I thought I had subscribed- this is interesting and well presented. Now I'm a registered fan (har har).
I appreciate how much detail you showed in this video very informative! Thanks for your content!
Another job well done and a nice change of pace with this video.
Good job Chris.
Nice work, Chris.
Chris good job, wow! we used to get those fans back in the old days of the late 1990s for $ 1,500.00 - $2,500.00, I almost spit my tea out my nose laughing so hard when you said they cost $20K I was like WTF. lol Maybe you in the wrong business and need to start thinking about building commercial rooftop fans? lol there can't be more than $2k in parts and sheet metal that is a heck of a big profit margin. :)
That was impressive. I haven't had to do that in years and always hated it.
Chris,buy a Slugger slide hammer,invauable for removing bearings! I have reworked a couple of the tool heads,but it makes it easy!
I will discuss this on my Livestream this evening 3/27/23 @ 5:PM (pacific) on TH-cam come over and check it out th-cam.com/users/live1yqPFoBgFdA
Really enjoyed seeing the whole process :)
Sorry for posting multiples,just throwing some things out there.Another tool that works pretty good is an SDR drill on hammer,use point or flat chisel bits to drive bearin to free it up,auto mechanice use aor chisels we rarely have aor so its the next best thing!
I liked the longer format, kind of a behind the scenes if you will.
You always have a good plan great job again
Funny how those bearings last like that. They're not meant to be in that "thrust" position. They should by all rights, just come apart as gravity pulls them. Dead blow hammers usually have lead shot in them not sand. I feel for ya Chris with these guys that have little knowledge about what needs to happen on things like this. I'd be ahead of you, on a simple job like this. Another nice vid though.
I love the whole process 👍
Good video! Nice to see the work done.
I can feel and sense your pain and frustration trying to take that damn bottom bearing off…. 😭😤😖😂 I would have gone the cut the hell out of it way sooner than you did… hahaha It’s crazy how dirty that equipment gets!… “ preventative maintenance “ really has gone by the wayside lately… probably due to economic and financial stress on your customers… that’s really unfortunate.. Another great video!
I enjoyed this video, keep them coming.
Good video
Like this style of videos (as well as the others you do)
With a small oxy torch you can cut the outer bearing race easily. After this heat the inner race a little red hot and apply one smash with a chisel on the dot. Job done in minutes.😁
LMAO leave it to the journeyman to have to borrow the apprentices tools to complete the job! Apprentices with any experience everywhere come stocked to avoid the ol' "go to my truck and get" statement lol!
In the old days, they used a transparent plastic tube filled with water, to level things. The tips are raised so that each tip has a surface of air. You mark where you want the surface to sit and you try to match the same distance from the top to the other thing you want to level. Ideally, you need two sets of eyes, but it is damn accurate.
use a small sledge hammer and a long chisel loosen one re install then do the other.drill hole into shaft and sink allen screw so the shaft does not spin.thanks for sharing.
Nice longer video styles, appreciate it 👍
@15:30 i see you chris. kidding kidding but love the long style videos. keep it up
Chris, you have A LOT more experience than I, so this is an honest question. Shouldn’t the adjustable pulley be as close to the motor body as possible to cause less wear on the motor bearings? I have been taught that having it out so far acts like a lever against the bearings….great video as always!
You are correct, but proper belt tension and alignment of the pulley will negate most of the potential damage. Technically speaking an adjustable pulley should only be used to get the proper airflow setting, then a fixed pulley would be installed.....this is mostly not the way it goes. Dont get caught up in all the technicalities. Do your best and let the chips fall where they may. By the book is great theory....but seldom reality.
@89DHVAC ideally yes the motor pulley should be closer but as i said in the video I had to move the pulley up in order for the set screw to hit the bottom of the key, the notch for the key did not go low enough on this particular motor
I like this style of video, good job. Nice to see another way to skin a cat
I love your videos
As for setting level on the belt and pulleys you can use an app on your phone to match the angle.
another tip I have used is cut almost to the shaft..then take a chisel and hammer it in to the kerf and most times the inner bearing race will crack and open enough to come off easy
I like this type of video u should do more like it
So happyyy a new vids 🤘🏻🤘🏻🤘🏻
Great video I use a 24 inch pipe wrench for that task
I will discuss this on my Livestream this evening 3/27/23 @ 5:PM (pacific) on TH-cam come over and check it out th-cam.com/users/live1yqPFoBgFdA
Made me think “if it’s liquid, it’s not tight”! 🔥🔥🔥🔥🔥
Lol....so true