EXHAUST FAN NOT WORKING

This was an emergency service call on an exhaust fan not working. It had an electrical short,a bad motor starter and a bad motor. Unfortionately I was not able to replace the motor so we changed the whole fan and got them back up and running by 12:30 the next day.
To support my videos please visit either of the links below
For Patreon / hvacrvideos
For Streamlabs streamlabs.com/hvacrvideos
TOOL LINKS
FieldPiece JobLink probes amzn.to/2WfQTRI
Samsung Tablet amzn.to/2EOYL1U
Fieldpiece SC660 Wireless Swivel Clamp amzn.to/2JXji7I
For Optimizing my videos I use Tube Buddy
www.tubebuddy.com/HVACRVIDEOS
Please consider subscribing to my channel and turning on the notification bell by clicking this link goo.gl/H4Nvob
Social Media
Facebook / hvacr-videos. .
Instagram / hvacrvideos
For any inquiries please contact me at [e-mail]

[@majbummer69]

"The disasters that usually do entail my job duties." Too relatable.

[@dwarden3]

On some motors the rear of the case can be removed exposing a retainer clip, then pull shaft out of motor instead of fan. Reverse install and done. Some large pool pumps are that way. It took me a LONG time first time, then an old guy told me about it

[@eggman9713]

For a while now we and our clients have preferred direct-drive fans (for general non-grease exhaust) because hey, no belts to break! For grease exhaust fans it's about 50/50 belt vs. direct for the projects I design. This is definitely good feedback from the field to inform future decisions for us engineers. Thank you!

[@eddiewhaler1]

When I was younger, I worked in some restaurants that if there was a power failure they made you keep cooking with no exhaust at all. I walked out on one job and said it's not safe, Ansul could go off, and the combusted gas fumes are toxic. I loved when you said there seems to be problems with every restaurant. Man... no more true words ever spoken. How lucky were they you "Just Happened" to have another Captive Air unit. Another amazing repair.

[@jarheadshooter6452]

Tie rod fork! No air bags since the pressure is on the fan. The fork has a wedge that applies pressure directly to the hub. It works!

[@thephantom1492]

You can use a pneumatic zip gun. If I saw correctly, you can see the shaft. Just use the zip to push out the shaft. Car mechanics use that all the time for this situation

[@lustfulvengance]

Air hammer, yes but that requires compressed air which I don't think he has access to when he's up on a roof!

[@robanderson84]

@@lustfulvengance small portable air compressors that trim carpenters use may have enough power and are about 1 gallon, and could be lifted to roof, still full air power would be ideal

[@rmarkesteijn]

Use the nitrogen bottle works perfect

[@jonathanweimane6926]

There are cordless battery options available also... was about say that you don't work on cars much..

[@MattMuckleroy]

It seems like you could loosen motor and put a drift or steel rod on shaft and hit it with a heavy hamner?

[@hrdworkin7633]

Excellent video and great tenacity! Most service companies would have walked away until Monday. Keep up the great work. Thanks

[@wtfman5313]

You handled it perfectly. I drill 2 quarter inch holes, bolt a short length of chain across the center of the wheel hub and slide hammer until the wheel breaks its bond. Then work it off with wooden wedges and a 5 LB sledge. My boss would frown upon changing the fan unfortunately, because I'd swap it for a practical design. Enjoyed the vid my man.

[@blendpinexus1416]

i love watching these behind the scenes videos. i've always been on the "there working on it" and "They fixed it yesterday" and other various they fixed it and i never even see them or notice when they are working. so really great, and the way you do these videos makes it easy to follow and very engaging.

[@dandfgarage986]

The reason they did this so complicated is so you HAVE to replace the fan and buy a new one and they get money.

[@JoeCdaYT]

I recommend using in those situations a ball joint separator. Has a flat side that is wedge shaped. Thanks for the video.

[@joshonthetube]

What a dumb design! I'm not a hvac guy so i'm not sure how this would affect balance, but my inclination would be to drill and tap two holes in the hub to allow use of a puller.. but if that would throw the balance off, that's a non-starter. The customer is lucky that you had a spare assembly....

[@hartsfire5706]

wow that is a real work of art. I do see a way to change the motor but it is not something you can do on a service call. I feel for you on this job. call the manufactory and see if there is a tool to pull the fan off I am betting that there is.

[@HVACRVIDEOS]

yeah i am gonna take it back to the shop and video how I do it! I will be going live on KZbin this evening 9/16/19 @ 5:PM (pacific coast time) to discuss my most recent uploads and answer questions from the Live Chat, KZbin comments, and from emails. Come on over and check it out, kzbin.info/www/bejne/bZmycpx7mMZ8nZY

[@FireandFrostHVAC]

Sounds like you had a fun night... the only thing I can think of is to drill and tap 4 holes around the shaft in the fan blade and try to use a puller. I like the air bag idea too though. Good video Chris.

[@SLeslie]

All it would need is 3 or 4 threaded holes in the hub for a screw on hub puller. Also I am amazed why it is allowed to use single insulated wires for environments it cannot handle (I live in Europe). I do not say that those conduits are not there for protection but this is not the first time I see this failure mode on this channel.

[@Puffalupagus360]

get a automotive pickle fork with an extendable handle, there was just enough room to slide it in without hitting the fan wheel.

[@barberhvac3438]

Hey, I work for captiveaire and cover the Northern California region. Whenever I run into one of these I order the blower wheel and the motor, cut the old shaft and start from scratch. Those blower wheels are designed to be tough to get off. With all the grease and gunk I guess the had problems years ago with blower wheels falling off so they made it so that wheel is HARD to remove. Not great for techs but it definitely won’t fall off. When I do have to remove the wheel, because it’s a emergency situation, I do exactly what you said in the end of the video, I’ve got 4 of the pump up shims and I use an alligator multi socket & extension to get the set screws off

[@billburnett9951]

Love those AC Tech/ Leeson drives. So easy to install and set up parameters. Great Video!

[@HVACRVIDEOS]

Thanks Bill, I will be going live on KZbin this evening 9/16/19 @ 5:PM (pacific coast time) to discuss my most recent uploads and answer questions from the Live Chat, KZbin comments, and from emails. Come on over and check it out, kzbin.info/www/bejne/bZmycpx7mMZ8nZY

[@AaronCo29]

I know its a late comment, but I have heated the wheel around the shaft till it slides off. It can still possibly cause problems in the wheel, but it may work in a pinch, Don't touch the wheel without gloves and don't set it directly on the roof, it will melt thru and cause a leak.

[@dandfgarage986]

Well, that’s Captive Aire for you 😂 I’ve never had good luck with them.

[@Nateone626]

Good vid Chris! I worked in restaurant service and you did what I would have done and got the customer running. That looked like a nightmare lol

[@memyselfandifarmer]

Four sided bolts= twelve point sockets. Just replaced a whole fan, parts costs almost as much as a whole unit. Cut shaft with saws- all, long blade.

[@HVACRVIDEOS]

I will be going live on KZbin this evening 9/16/19 @ 5:PM (pacific coast time) to discuss my most recent uploads and answer questions from the Live Chat, KZbin comments, and from emails. Come on over and check it out, kzbin.info/www/bejne/bZmycpx7mMZ8nZY

[@jake2213b]

Try a front end tool that is a bar with a V fork. Also if our equipment was on 460v for a 480v I would junk that transformer for low voltage.

[@jrmcferren]

460 is the NEMA nameplate rating for motors on a 480 volt nominal system.

[@martinobrien1877]

Disconnect motor mountings. Take fan and motor off. Flip motor upside down. Small 1 inch wood and hammer shaft. Gravity will help. Lubricate and repeat.

[@richardboyle3142]

Hi Chris Great Videos! I had a similar situation. I just Purchased a 3/8" Drive Socket with the other end square to fit the set screw. Its very convenient. I googled it but will send link when I fine it.

[@neverenoughtime3151]

Since this is a recurring PITA, ahead of time, make up a flat version of a pickle fork out of the thickest material that would fit where you wanted to put the pickle fork (making the fork wide enough to spread the force out on the upper housing). Then, to remove the fan cage, install the pickle fork, unbolt motor, spray motor shaft with penetrant, and use a zip gun (air chisel) with either hammer or pointed bit (since motor shaft has indentation) to impact the motor shaft. I'd guess it's really a 2-person job since you'd need at least 3 hands... one pulling on the motor (ready to grab it when it comes free), one using the zip gun, and one ready to catch the fan cage when it breaks free.

[@commanderosis435]

That's pretty rare to see the wiring inside the conduit go bad. I had it happen once with a fan motor on a medium temp box. It took a full day to find because i had to check everything else. I wonder if the insulation gets damaged when they're pulling wire. The only way i could think to remove that fan would be to have some special kind Jack. Sounds like you have a similar idea with your balloon idea

[@nando5302]

Great video/ content Chris.

[@FLYWHEELPRIME]

Definitely poor design, but it's not made to remove the squirrel cage like you were doing. They want you to pull the motor vertical. Ran field service division for a huge motor shop not too far East of you for years, spent a good deal of time in Carson and Victorville. Keep up the videos man, great content.

[@brucekreitman2169]

Chris, two thoughts. Drill and thread the hub and use a puller or cut the motor shaft with a saws all and punch out the shaft from the hub.

[@HVACRVIDEOS]

They key in the shaft was the problem and I didnt want to drill the hub and make the wheel off balance, I will be going live on KZbin this evening 9/16/19 @ 5:PM (pacific coast time) to discuss my most recent uploads and answer questions from the Live Chat, KZbin comments, and from emails. Come on over and check it out, kzbin.info/www/bejne/bZmycpx7mMZ8nZY

[@jply87]

I have had limited "luck" with using those air bags you can get from Home Depot. I use 3 bags and 3 blocks of wood to take up the extra space.

[@HVACRVIDEOS]

I will be going live on KZbin this evening 9/16/19 @ 5:PM (pacific coast time) to discuss my most recent uploads and answer questions from the Live Chat, KZbin comments, and from emails. Come on over and check it out, kzbin.info/www/bejne/bZmycpx7mMZ8nZY

[@johnnysaltyaircrabcake8030]

All new installs I try to convince the customer to put anti-seize on anything easier to access now when new

[@45asunder1]

This happened to me too.I removed the back cover from the motor then grabbed rotor while spinning the blower. It took a while but it finally spun off the shaft. I also used a lot of WD40 to help the blower slide off.

[@HVACRVIDEOS]

this is a great idea but I need to get the key out of the shaft first and that is still a pain, I imagine a spot weld to the key and a puller would work though but I don't have those tools in the field..........

[@45asunder1]

@@HVACRVIDEOS you're right, mine was a smaller unit without the key.

[@allanroberts7597]

How about a tie rod ball joint separator. Sometimes called a pickle fork. It might be able to reach in and wedge it on the motor shaft. Just a thought.

[@HVACRVIDEOS]

Yeah that was my thought too I actually had one with me but it was not long enough

[@refrigerationwill6628]

Yes a fork works well, I had a similar situation I used a fork with a cheater bar

[@coldfinger459sub0]

Allan Roberts Yes I was a mechanic to long ago that was my first thought a pickle fork LOL 😂

[@Leroys_Stuff]

Air hammer at your shop

[@georgecurtis6463]

As an automotive mechanic for 35 years, i can tell you that dumb engineering is way to common. Jusy saving the bucks. Giving a damn about repairs down the road. I would have replaced the unit also.

[@oliverbranson5565]

Great video! Definitely not designed to repair, just replace. Lucky for customer you had it in stock.

[@HVACRVIDEOS]

I will be going live on KZbin this evening 9/16/19 @ 5:PM (pacific coast time) to discuss my most recent uploads and answer questions from the Live Chat, KZbin comments, and from emails. Come on over and check it out, kzbin.info/www/bejne/bZmycpx7mMZ8nZY

[@douro20]

A fan like that should be mounted against a flange on a keyed shaft and secured from the end with a plate which screws into the motor shaft like the rotor on a pump. Such a setup would make the job a lot easier.

[@4932gb]

Drill and tap 2 1/4-20 holes on the hub plate and fabricate a simple puller. Shouldn't create a balance issue.

[@frankjackson2439]

Can you please do videos about taking apart broken components like that motor starter and compressors and things like that?

[@indianajim4215]

I know this is very late since you made this video a long time ago but I might be able to make a video of how I change all the exhaust fan motors. I basically turn them whole fan upside down and let the weight of the motor pull itself out of the hub.

[@RoyFabian]

Ive actually used those pads to pull large pulleys off. It's hit or miss though. You dont want to apply any heat because it'll melt the bads when you go to use them. And I'd use more that two just to more evenly press it off.

[@chriscooley906]

I could tell as soon as I seen you start filming at the roof door that the nightmare was just beginning way to hang in there bud, So much for the overload on that motor starter doing its job, better install bigger wire on the next one to protect over amping in the future, Thanks for sharing your trials and tribulations.

[@robanderson84]

the Simplex fire panel i work with daily, has an internal bypass mode that won't sound the alarms or shut down equipment or elevators, you still need to call the provider to take offline, but could do that work with customers in the restaurant and they wouldn't even know it went off. at my building i turned off an exhaust fan in the boiler room to work on stuck louvers, and the fire alarm went off when i cut the power to the fan, so you never know who wired what into the fire system

[@donnierobertson3088]

Great job again like always

[@mikerocheleau1168]

Slide some thin pieces of wood in the slot and pull up on the motor. Then the vanes on top won't get crushed and there is even pressure on the fan to get it off.

[@HVACRVIDEOS]

I will be going live on KZbin this evening 9/16/19 @ 5:PM (pacific coast time) to discuss my most recent uploads and answer questions from the Live Chat, KZbin comments, and from emails. Come on over and check it out, kzbin.info/www/bejne/bZmycpx7mMZ8nZY

[@akhermit5213]

If the motor is thrashed, I use a sawzall to cut the shaft off. Then pound the shaft out of the blade with a brass drift after gently heating/oiling it. Worst case, you could have a machine shop press it out, but I like to go Neanderthal on it. That is how I do it for the big conveyor pizza ovens. I can usually do it with two blades on most shafts, sometimes three. Finding a 480 volt motor locally is another story.

[@throttlebottle5906]

that works also, if you can get to the motor shaft or cutting torch ;)

[@akhermit5213]

@@throttlebottle5906 Long blade gets in there :)

[@jeffgrant6914]

Nice repair video 👍

[@HVACRVIDEOS]

Thanks! I will be going live on KZbin this evening 9/16/19 @ 5:PM (pacific coast time) to discuss my most recent uploads and answer questions from the Live Chat, KZbin comments, and from emails. Come on over and check it out, kzbin.info/www/bejne/bZmycpx7mMZ8nZY

[@bentlikeitsmaker]

Another option to get it off might be a ball joint puller because it pulls more even and is a wedge

[@harrydickson4575]

Another great video 👍👍

[@douro20]

Those Lenze drives are very good. You can have a remote panel to control and monitor them. Since it's a vector drive the remote panel can be used to monitor the condition of the motor.

[@htroberts]

There’s got to be a “good” way to separate that blower wheel from the motor shaft. I’d like to see @captiveaire post a video response and show us how to do it (or comment that they’re redesigning the wheel to give a place to pull it from).

[@HVACRVIDEOS]

Unofficially they realized they made a mistake......

[@htroberts]

HVACR VIDEOS any idea if they’ve changed the design?

[@jth1699]

Take a close look at the face of the hub - they do make a style of hub that can be removed with a grease gun - it will have a plug in it - there is a hole drilled into the middle of the shaft then the shaft is cross drilled to supply the high pressure grease from the grease gun to the outside of the hub - a grease gun will put out about 10000 pounds of pressure... the pressure will streatch the hub and it will pop off - odds are the wheel is mounted on a tapered shaft. And if that is not the case I'd call the manufacture and ask them how did they plan on changing the motor... I have seen these types of hubs on heavy duty stuff where it would take 100,000 lbs of hydraulic pressure to release the hub. If that is the type of hub it has be carefully because when the wheel releases it will do it all at once and could injure someone.

[@JaakkoF]

Two options for pulling that fan wheel off that I can think of: 1. Buy an automotive pickle fork with long enough handle, it might fit in that gap and allow whacking the thing off. Not a big fan of this solution as hitting things usually ends up in more damage or sudden unexpected happenings. 2. On the inside of the fan where you see the motor shaft, drill & tap two screw holes on opposite sides of the shaft to the hub of the fan blade, as it looked quite thick. Then screw in a piece of flat bar to these new holes that has a threaded hole in the middle (I'm pretty sure a ready made puller like this exists) and torque a bolt in the middle hole, so it pushes against the shaft end. Pro tip for drilling a hole, especially in steel: start off with a 2.5 or 3 mm (1/8" or a tad smaller) drill at full speed, drill the depth you need. These small drills have a non-existant chisel point, so they are very easy to push in to the metal. Then follow up with a larger drill, like 5 or 6 mm (1/4") and then your tap size drill. Makes it super easy and you don't have to use force to get the drill in to steel. Just in case the situation comes that you don't have a backup fan sitting in your shop ;)

[@everydaythings4991]

One idea I have is if you can flip the thing upside down so the motor is hanging. Take some wood shims and shim the wheel in like six places against the frame. Loosen the motor mount and use a punch to drive the shaft through the wheel. This would spread the load on the wheel and shock it, versus trying to pry on it. Sometimes one swift hit will loosen it up enough to work it off the shaft. If you can apply a little heat without catching it on fire, I'd do that as well!

[@tyhuffman5447]

Try some of those pneumatic wedges to “pull” the fans. It’ll probably take several but it will/should work. The force will be much more spread out so little chance of damage and the total amount of force will be much greater. You can use smallish inter tubes, the little square are used to lift refrigerators so the wheels can be extended easily.

[@HVACRVIDEOS]

yeah if the air bags don't work i will look into those, thanks for the tip , and thanks for watching!

[@tyhuffman5447]

HVACR VIDEOS dude sorry for not watching the whole video before offering a tip you already acknowledged. The small square pneumatic wedges are used also for leveling pretty heavy stuff so they should work, and they are cheap.

[@coolezum]

Just a thought. If you used one of those pickle forks that they use to separate a ball joint or tie rod end on cars, it may allow you to force the turbine down. The hub on top is stout enough to handle it and the housing above should. The one I have is about 18 inches long but, you could easily weld an extension if needed. Worse case, I have made my own tools for weird or quirky jobs.🤔😊

[@mysock351C]

They do make forks wide enough to clear the hub but theres only sheet metal on both sides of it to push on. Youd probably also have to stack two of them on top of each other as well. It probably could be fixed by drilling two holes in the fan and making some threaded plates to accept a puller, but probably too much work to do on a roof.

[@coolezum]

mysock351C you would push on the hub, there is some room above the hub if you look at his vid but, ya I thought same thing on drilling and tapping bottom of turbine fan. The wheel should not be on very tight as no rust just grease on shaft from kitchen.

[@mysock351C]

​@@coolezum My concern was the sheet metal above the hub but if he could have moved the motor down far enough it would probably work. Posted the same thing above about tapping the hub plate. Dont know what its made of, tho. If the fan and motor is available as a module by itself maybe thats what they expect you to do. Still would see that costing about 500-700 dollars on its own. Seems kinda steep to leave out two threaded holes or some other provision to remove it.

[@jaymondy]

@@coolezum Big issue here is cooking grease, is never a lubricant. only binds everything up.

[@EricK-ig4ko]

Awesome vid as always

[@ranchertrapperdieselbuilds3632]

I love your vids man. Awesome

[@HVACRVIDEOS]

Thanks bud!!

[@ronp4869]

Wonder what the manufacturer of the fan recommends to remove it? Might be worth a call to see if they have a tip. Then again maybe they designed it this way to make it unserviceable so they can just sell you a total replacement. ( I wouldn't be surprised). Good stuff keep it up 👍🏻 🤘🏻✌🏻

[@mjojo1000]

I like the belt drive version of this exhaust fans

[@johnnysaltyaircrabcake8030]

Ive worked on that same unit.. it sucks to get the wheel off... I got the wheel off by putting metal pipe and a pry bar with a large tapered end on 4 parts of the wheel and tap with small sledge on each one easy at a time to break loose.. prying one side only bends the wheel..need even pressure to slide off. If really tight to get loose, they need replace

[@D_Rod205]

%100 agree. Good vid. Gotta love them elaborate exhausts lol. Vfd on everything. Gotta love Cali lol.

[@HVACRVIDEOS]

I will be going live on KZbin this evening 9/16/19 @ 5:PM (pacific coast time) to discuss my most recent uploads and answer questions from the Live Chat, KZbin comments, and from emails. Come on over and check it out, kzbin.info/www/bejne/bZmycpx7mMZ8nZY

[@Georges3DPrinters]

12:17 was going to say the same thing, those inflatable bags are very useful. Use them more the you think, especially As a custom spacer for the right height till you get your screw into a hinge. Beats hold a door up with a crow bar that just wants to damage the door seals.

[@Georges3DPrinters]

I would say more then 2 though, more like 4 or 6

[@buixote]

I'm thinking of two pieces of steel with threaded holes that you could put motor-side; drill holes through the fan, and thread some bolts into those pieces, and then use a puller... the pickle-fork also sounded good... I wonder if you could use one on either side, to help pull it off *straight*...

[@ricardoruypena1021]

Change it for a Greenheck fan. The best

[@gregob-team4642]

Great work bud

[@HVACRVIDEOS]

Thanks

[@asbestosfiber]

You can call 911 and let them know you set off the alarm. The FD may still come but they will slow it down and probably send some units back.

[@alantorrance6153]

Suggestion for removing that fan. It looks as if there is a very narrow gap between the top of the fan boss (has the set screws in it) and the shelf that supports the fan. Instead of levering down on the outside edge of the fan (risking bending it), how about using a steel rod, with the end ground down into a screwdriver blade section about 1/2 inch wide, thin enough to put or hammer into the narrow gap. Machine the outside end of the rod to 1/2 inch square to fit a standard socket handpiece and use that to twist the blade. If needs be, add an extension to the socket handpiece to provide additional twisting moment. In other words, twist to exert downwards pressure right at the centre, where it cannot cause damage?? Once it has been budged even a little, it would presumably come off the rest of the way fairly easily -- you just have to break its "lock".

[@mattlocklin6471]

I cut a slit into a 5/8 plywood with 2 sawhorses on it upside down with the weight of the motor pulling down. strike the shaft sicking up with a drift and hammer this displaces the load over the entire wheel. put something down to catch the motor usually i use ratchet straps with about 2 inches of play in them attached to the ends of the plywood. this method would have required 3 guys on a fan that size.

[@emolatur]

8:05 I think you could get a couple pieces of steel plate between the hub and the hole to hold the wheel down, then pull on the motor...

[@prjndigo]

you need a couple cam-sticks, they're rods with dual spiraling out surfaces, when you use those airbags you want to put them inside "tacos" of fairly good gauge sheet metal, you can just put a cloth over that to keep it from sliding and you'll be good to go.

[@ktga67ish]

Just to let you all know the manufacturer has heard your comments and is adding threaded holes to the hub so you can use a standard pulley puller to remove these wheels.

[@HVACRVIDEOS]

Awesome Im glad they listened! thanks for the update, I will be going live on KZbin this evening 11/11/19 @ 5:PM (pacific time) to discuss my most recent uploads and answer questions from emails, the Livechat, and KZbin comments. Come on over and check it out if you can kzbin.info/www/bejne/iJ6WiXp4ed2jhbM

[@nosadonions3231]

They make 8-point sockets for square headed bolts.

[@jamestoy426]

Nice job

[@mysock351C]

On second look seeing the clean one the hub disk is thick enough to drill holes into and tap to accept a small puller like a steering wheel puller, assuming its not something cheap like cast aluminum or zinc. Using some 1/4-28 bolts would probably do it. Dont know if its worth it given it can be replaced as a module, but it looks doable, for what its worth.

[@howardharaway2259]

If It were my job,and had the replacement in my truck,I would not waist a micro second trying to remove the wheel. Time is money,and the time that may be saved can be travel time to your next service call.And because these exhaust fans are so crucial to the restaurant, I would try and sell them a new set up for the other exhaust fan,that is IF .....that fan looks to be the same age,and original motor. They maynot go for it but I would try. Future work right ? I do not want to offend you by being a should of,would of person. You are wayyyyyyyy more mechanical/ intelligent then I will ever be. I am just thinking of how my boss would handle it, especially if they were a regular customer. Anyways,as always ......👍👍👍👍👍👍👍👍👍!

[@mikefisk1301]

Those exhaust fans look greasy as all heck kind of nasty... Love the video though always looking forward to your uploads!

[@HVACRVIDEOS]

thanks bud

[@generohernandez8729]

I'm with you, get rid of that engineering nightmare. Customer was oversold on a simple exhaust system.

[@HVACRVIDEOS]

I will be going live on KZbin this evening 9/16/19 @ 5:PM (pacific coast time) to discuss my most recent uploads and answer questions from the Live Chat, KZbin comments, and from emails. Come on over and check it out, kzbin.info/www/bejne/bZmycpx7mMZ8nZY

[@ktga67ish]

He said the system had small ductwork and high static pressure, a normal upblast probably wouldn’t have worked there. Utility set was most likely the only option and using one like this that sits on the curb actually reduced the complexity.

[@phil9530]

Drill two holes in the disc as close to the shaft as needed tap the holes and using a threaded rod or a long Bolt to push the fan off the Motor

[@jamesfields4149]

To get that off you could use a couple of pancake jacks

[@Egress.]

so, you turned the fan control panel off and that set the entire fire alarm off?! I can't stop laughing thats soo hilariously bad

[@HVACRVIDEOS]

Yeah I was dumbfounded myself

[@throttlebottle5906]

maybe there's duct/hood temperature sensors and it still too hot inside or the equipment still throwing off too much heat so it set the alarm off on power failure and high temps. hard to say what new fang-dangled junk they have in place and forced to install

[@scottmpreston]

Captive Air is crap, just like Greenheck. Loren Cook is by far the best fan company out there.

[@databoy2010]

another possible method of removal could entail the use of a pair of wood wedges being driven together on opposite sides of the fan. this is still not ideal but it would at least create a more distributed force.

[@charlesmalinoski6325]

Could you of possibly drilled out the motor shaft a bit, to release some of the stress on the hub ? Then try to pull it off. Using a lesser diameter bit of course than the shaft. To then pull the fan off.

[@tonystrollo193]

Chris, I agree, bad design, the engineers who design that fan assembly. should have stayed home that day. If there was more clearance by design, you could have a special slim locking wrench made, ( long handle vise-grips) to hold motor shaft, and then you could work spinning the impeller off. Something to think about for future disasters. But in short, you did the right thing, since you had a spare, swap out fan assembly, and deal with rebuilding the old one. Another idea, since you were replacing motor, take off top end cap, and jam something between armature and field, and then try to spin the impeller off. these are things to try, if only you had the time, certainly more difficult when high volume restaurant needs to operate The key thing, is to minimize downtime, and keep customer happy. You did the right, Great job Chris

[@HVACRVIDEOS]

thanks bud, I will be going live on KZbin this evening 9/16/19 @ 5:PM (pacific coast time) to discuss my most recent uploads and answer questions from the Live Chat, KZbin comments, and from emails. Come on over and check it out, kzbin.info/www/bejne/bZmycpx7mMZ8nZY

[@electriciants7927]

Probably a faulty motor starter from the beginning. Good job though!

[@dizziedallas]

I feel your pain!

[@shadowsiren3058]

How to check a fan that’s running. SIMPLY HEAR WHICH SIDE!!!

[@TheMatsushitaMan]

Lmao I got an ad for MAXGE circuit breakers before this video. Chinesium!

[@Adam-bw4lw]

Same LOL

[@sharky5570]

Just started up a system in new restaurant that has two kitchens on two separate floors, anyways both kitchens are networked together, so if one ansil system pops they all go!!! Same company you are working on. Over engineered to say the least. Same issues that the electricians did not hook it up correctly.

[@jaymondy]

If they are on seperate floors, it sounds like they may be on a common duct. in that case, all would need to shut down, if they all fire is dependent on the AHJ.

[@matthewgregory8218]

And even though I’m not a technician I’m almost sure you need to check the make up air on top of fixing the hood fan condenser

[@Aawsomeguy]

It would actually be better just to replace it with a belt driven updraft exhaust motor/fan since it would be less downtime.

[@RJMaker]

A few Air Wedges may have helped. They do work exceptional well often times.. :-)

[@RJMaker]

LOL just watched to the end...

[@HVACRVIDEOS]

I will be going live on KZbin this evening 9/16/19 @ 5:PM (pacific coast time) to discuss my most recent uploads and answer questions from the Live Chat, KZbin comments, and from emails. Come on over and check it out, kzbin.info/www/bejne/bZmycpx7mMZ8nZY

[@CCWSig]

Get a pry bar in there between the hub and motor, put some pressure on it, and whack the shaft a few times with a hammer. Should come loose for you.

[@HVACRVIDEOS]

I will be going live on KZbin this evening 9/16/19 @ 5:PM (pacific coast time) to discuss my most recent uploads and answer questions from the Live Chat, KZbin comments, and from emails. Come on over and check it out, kzbin.info/www/bejne/bZmycpx7mMZ8nZY

[@scottwillow332]

Should have removed back off the motor case and put vice grips on the shaft to lock the motor then rotate fan assembly by hand to loosen

[@throttlebottle5906]

it was a keyed shaft/hub, no rotating anything there, unless there's enough space to drive the key out the back side of hub up the motor shaft.

[@utubepro7742]

Wow your life is like mine Some things are not easy

[@JuanTodoli]

Incredible.

[@HVACRVIDEOS]

I will be going live on KZbin this evening 9/16/19 @ 5:PM (pacific coast time) to discuss my most recent uploads and answer questions from the Live Chat, KZbin comments, and from emails. Come on over and check it out, kzbin.info/www/bejne/bZmycpx7mMZ8nZY

[@joevinski1]

One idea how about one of those giant arm pulley pullers like the kind that removes 24 inch wheel pulleys not sure if the arms would open up enough to grasp the whole wheel but a thought , also mb zip screw a sacrificial hub under the wheel to get it to start pulling idk I guess anyway would possibly thru the wheel outta balance mb call the mfg and see if they have a specialty tool to remove that wheel assembly sorry for your headache brother but that’s what keeps the job interesting lol

[@ne8r]

Loosen set screws, tap on motor shaft toward motor to drive off blower wheel.

[@jonathanweimane6926]

If those are common, make a custom tool to pull the fan off