Kitchen exhaust fan bearing change out

replace bearings on exhaust fan.

[@Pyridox]

Very good video, nice repair. I like that you checked for alignment of the shaft (a lot of guys don't do that, and the bearings can fail prematurely). I always put a few shots of grease in those type bearings as well, unless of course they are sealed type bearings. I was always lead to believe that they come dry in the box because grease could seep out during shipment, etc. Either way it couldn't hurt to shoot some grease in them.

[@NorCal-refrigeration]

Good point on shipping.

[@marcoalvarez1276]

Solid job bro! It's crazy how many techs won't check the pulley alignment.

[@lapoblanarestaurantsramire3769]

alot of ass wipes wont even put the proper tension on the band... question ... if my hood is making a squeaky sound.. what would be the problem ? i aligned the pully and gave it better tension .. and brought the pully in tighter.. the noise is now less noisy but still makes a sound ..help!?

[@isaacromero8331]

Did you figure it out

[@andypatel1004]

You saved me thousand dollars. Excellent video. My maintenance man wanted to replace whole Captive air fan. I did it myself with your video guidance. Thanks very much.

[@NorCal-refrigeration]

That’s Awesome Andy!!!

[@md929]

Awesome video. Just started working on those for one restaurant at a mall.

[@BillyKnoth]

short sweet and to the point! nice work!!!!

[@NorCal-refrigeration]

Thank Billy

[@airmechanical7163]

Per the AMI Bearings website the bearings come pre greased. They have a chart with their regrease intervals.

[@NorCal-refrigeration]

Great info thanks

[@haz_jun2442]

Made it look easy... Great video.

[@NorCal-refrigeration]

Thanks.

[@RobHVAC]

Nice repair. It's great when it's easy at the end of the day.

[@NorCal-refrigeration]

It is

[@nicholasceea4109]

Nice easy job Dave, you got some good karma going on there! My thoughts are don't grease new bearings because they already have the proper amount of grease from the factory, which is not much. But I suffer from chronic over greaser syndrome (COGS) and I can't believe I'm saying no grease. I guess the meetings really are helping..lol

[@NorCal-refrigeration]

I was thinking they come ready to go. But I gave them a little. I think i always have.

[@brandonrapitta2940]

Thanks for the vid man. I'll grease my new bearings up just because you did lol.

[@ianpalmer1482]

Great video Rasta. Open bearings like those I always grease. Closed bearings like on a motor I go by the manufacturer recommendations.

[@NorCal-refrigeration]

Thanks for the reply Ian

[@philltafolla]

Nice one I've personally never have replaced the bearings on a mushroom head exhaust.. looks like I will try it soon .. nice one Rob.. I just subscribed to your channel...see if I can learn a thing or two..good job!

[@NorCal-refrigeration]

Thanks for watching.

[@jonhvac]

Enjoyed Dave

[@65bug519]

I find every type of bearing these days has nearly no grease in them so I have been adding grease to new bearings, factory lubed for about 3 revolutions at best

[@harrydickson4575]

Nice job !!

[@NorCal-refrigeration]

Thanks Harry

[@Gears.and.Gadgets]

nice job. I remember doing that on a greenheck hood. What a pain in the azz it was. Yet in the end it sounded much better. I too always grease those type of bearings.

[@NorCal-refrigeration]

green heck is usally good stuff, I like those fans

[@muniznick]

Big Pun surely punished those bearings

[@Essays4College]

don't stop get it get it!

[@hardcooling]

Nicely done bro

[@NorCal-refrigeration]

Thanks HC.

[@fredflintstone8048]

Yes, of course you grease new bearings. Some may come from the factory already packed with grease, but I've seen many that have not. They come dry. Pump some in until you see it begin to squeeze out. Too tight of a belt will also cause premature bearing wear in the fan bearing and also the motor bearing. It's tough with a small belt because there is very little stretch. Regarding PMs, I've been involved in maintenance programs with large companies that decided that exhaust fans are cheaper to maintain 'run to fail'.. so they get greased when new bearings are installed, but never again until the next set of bearing is installed. They believe it's cheaper in the long run. I can't argue with that..

[@joshuapoche5137]

I always grease new bearings. Sometimes they come with grease already and some dont. Better to grease to know their protected

[@calholli]

I definitely grease them when new... Grease them until it's coming out everywhere and that will help a lot with dirt ingress too; along with knowing for sure that they are full of grease.

[@MrDjC5]

The bearings should be greased on a routine schedule. Depending how fast and load it takes is how you will need to regrease. I would run some grease lines out to where they can be reached without pulling the hood. Grease while its running id say. Those type bearing no more than 2 shots every lube cycle.

[@megason2]

i use alot of ami bearings at work i always grease them

[@lapoblanarestaurantsramire3769]

my exhaust is making a squeaky sound ever revolution ... the band is really worn out ... would it be the pully out of alignment or are the barrings are no longer good ?

[@tonyu4699]

What kind of puller did you use on the bearings?

[@johnboughton651]

You can not align pulleys by levelling them. A straight edge is the tool to use as the fan housing may not be level and yes you DO have to add grease to new bearings as the manufacturers have a few bad reasons to not add enough. Sales of new bearings and cost of grease. You can buy bearings only that fit into the old cast housings. Available many places. Generally you clean the shaft and oil it to get the pulley off. Sorry to be critical of a good tech but just trying to add some helpful info.

[@bjnewberry2623]

What puller do you use to get those bearings off

[@hectoracosta1201]

What would be the price for a job/work like this? (Including parts)

[@lucasjuan4500]

Wy my exhaust fan won't turn on thanks for you help??

[@zacharychall-hutchinson6720]

what does the fan itself look like ?

[@RFing22]

Would bad bearing make the whole unit vibrate??

[@capitolrefrigerationheatin7501]

I got the same puller, nobody really knows if the bearings are greased,i always give them a couple pumps

[@edtin8596]

i have a similar exhaust fan , but i need to replace the shaft too because it's damaged. is there a video on replacing that?

[@josetorres3355]

Following This!!

[@jimbola77]

I don't think a lil grease will hurt!!!

[@manofweed1]

So can they be changed with fan in situ ?

[@jimbola77]

nice!!!

[@genej9226]

The problem wither to grease the new bearing block comes down to the bearings themselves. Unless the bearing has a hole thought the race and was designed to be greased. Most are not and if you will take the old one apart you will see clearly see what I'm talking about. The ideal behind a bearing that could be greased need old grease flushed out and replace with new grease. I've seen a lot of electric motors in the old days filled with grease because when they were overhauled in the motor shops and they installed shielded non grease bearings. Sorry to be long winded.

[@NorCal-refrigeration]

Got it. Thanks for the reply.

[@zacktalksshopbside]

Good video

[@NorCal-refrigeration]

Thanks Zack

[@gene-khvacr]

how many hours would you say to do this call, you make it look easy great vid done well sir

[@NorCal-refrigeration]

+Gene K 1 hour only because it came apart easy.

[@dudefixesstuff2153]

Good trick with level

[@tomcat27557]

how often to grease bearings! did the first one ever get greased....probably not! instructions will probably tell....but who reads them.

[@kingofthecrease30]

I like your videos....you do a great job all the time but how old is that van you drive? time for a 2016 model or one maybe a few years old...all the driving you do its time for something modern :)

[@NorCal-refrigeration]

It's a 95 gmc. Only 74,000 miles on it. I'm going to ride this one to the ground. ( maybe ) 😀

[@mattdrellishak1740]

Where do you order the bearings from?

[@GordonHVACR]

I did a exhaust fan rebuilt today. Could not get bottom bearing off the shaft it's a greasy restaurant. What would you use to loose the bottom bearing ? The shaft is very long I came across auto bearing tools max they got is 8-1/2".Any thick will be much appreciated !

[@NorCal-refrigeration]

Sometimes you have to cut them off with a grinder with a cutting wheel on it. Be careful or find a long puller.

[@GordonHVACR]

+Nor-Cal Refrigeration & H.V.A.C thanks for the reply

[@chai4321]

would you come and change these bearings for my restaurant? it's in Massachusetts.

[@NorCal-refrigeration]

Lol. Call Steve lav.

[@wdennis8]

Where do you buy the bearings? Does Johnston or United Refrigeration sell these items

[@alexilauto1419]

Go kart suppliers sell those same bearings actually XD

[@channelcatchaser9426]

That's what She said

[@lennongroover4189]

? tis confusion 😉 but seriously I am kind of confused

[@simplisticfilms1499]

Just replaced a motor, same specs, motor turns on for 10 seconds then turns off. It’ll do this contentious. Motor is a bit hot. What do I do??

[@NorCal-refrigeration]

Check your wiring. Correct voltage, rotation, amp draw?

[@meerscan9101]

I bet the neighbors like you! no more erk erk on that rooftop

[@NorCal-refrigeration]

I never thought about that I bet your right.

[@SuperMudMuppet]

What size bearing puller do you use? Thanks

[@NorCal-refrigeration]

SuperMudMuppet craftsman 8”

[@SuperMudMuppet]

Nor-Cal Refrigeration & H.V.A.C Thank you for the quick response really appreciate it

[@nategadow4482]

have you ever had a service call on the pier or boardwalk?

[@NorCal-refrigeration]

Years ago when I worked for Rogers refrigeration I did.

[@natra911]

They come dry. Check many

[@luishilario49]

I have the same problem, where can I get those bearing?

[@NorCal-refrigeration]

Applied technology, Grainger

[@luishilario49]

+Nor-Cal Refrigeration & H.V.A.C Model number?

[@lennongroover4189]

I’ll take the bottom one and maybe the top one too if you’re not going to use it for anything else

[@jiyoudong7789]

My vent a hood is shaking so bad, I call so many technicians they can’t get it fix, I had change the bearings it’s still shaking, can you help me out man?

[@NorCal-refrigeration]

Grease build up on wheel? Wheel out of balance?

[@luishilario49]

part number?

[@heavydiesel]

Friend of mine calls early failure China bearing syndrome!

[@NorCal-refrigeration]

lol

[@JohnDoe-bq8oo]

Doesn't show the actual bearing being removed. The rest of the video is ok.

[@NorCal-refrigeration]

John Doe I'm so fast there was nothing to see😂🌶🎉

[@derekerb3218]

Skipped half the job on the video. Show you driving then skip showing half the job.