Basic auto trans clutches and bands

This is video two of a seven part series on how a basic automatic transmission operates. In this video, I cover how multiple disc clutches and bands can be used to hold or drive gearset components. I demonstrate the multiple disc clutch operation with a cut-way. These videos are meant to introduce technicians and students to the basics of automatic transmissions. For more in-depth knowledge, look for my videos over specific transmissions.

[@georgekaras7162]

This is an excellent video. This gentleman just clearly explained what I haven't understood for many years

[@volkan_youtube]

The only video I have seen so far that shows how gear clutches work in an automatic transmission. Thank you so much. I feel hugely enlightened.

[@N01Dad]

This is a phenomenal video. I personally find it much easier to understand than the virtual cutaways. Thank you

[@karenthomson9749]

Best auto transmission tutorial on RUclips! Amazing job! I wish everyone watching all the other terrible clips could see this first!!!

[@doglegjake6788]

Im very thankful for what I've learned from this man

[@richardlewis7471]

This really puts things together. Now I understand. You’re a great instructor.

[@tanviramin1245]

That's a great lecture. Thank you so much for making these tutorials.

[@nadeemp3783]

great video! helped me understand my modules a lot better

[@stispiluzespegar917]

Thanks for making this video. You should have more views.

[@malcolmhangs9909]

I love the way you are explaining

[@cakefactoryy]

Yea man you
Deserve more views

[@willt1963]

Steels in this case held outside of clutch and the clutch discs held the output shaft! TY, you made it so freaking eaSy to understand! I am an Elec/Mech Tech 34 years at a national lab, I am going to attempt to rebuild a 62TE and this is going to help

[@siuautomotive]

Watch the 41TE series, because the 62TE is basically the same transmission that's been upgraded to a six speed.

[@despino3985]

Thank you so much for breaking this down... Great video!!!!

[@rickyagravante6720]

Wow very nice step by step learning think you very much sir thi is may additional knowledge

[@ahmedpundit2759]

great job in fixing the transmission

[@plexradio]

Great lecture . Can you show explanations on what happens in transmission when we experienced hard shifting. I cant seem to wrap my head around it.

[@DanielPrce]

Excellent video

[@kelvinkaminsa5492]

Thanks

[@fernandohood5542]

Would like to see the actual passage to the pistons,

[@kakkahaisee-dk1gm]

would of liked a demonstration of actual single assembly simultaneously holding a part of the gearset to the case and another to the drum or whatever.

[@ToteHammer215]

My 07 Impala is only going forward in manual 1 and 2 and it also moves in reverse, just not drive. Could my forward band be broken?

[@kulaniscap]

A Like for the compressed Air.

[@chidennaji666]

Where can I buy good cloches

[@stereopolice]

You are awesome.

[@khaniftikhar9225]

Good

[@hardknocksautomotive5393]

Yo nice brotherhood shirt I’m in it too

[@erasmusshaanika6195]

Where do I enrol to learn automatic transmission and how to repair them?

[@SaravanaKumar-sp4yx]

Sir please overhaul A240L Toyota Corolla Automatic Transmission ! Please sir .....

[@niringiyimanawillybrold9784]

Provide us video about hybrid electrical vehicles

[@MeaHeaR]

I wished he'd linked part 1 in thé description

[@kelvinkaminsa5492]

Mazda familiar is not charging gear 3 it automatic what could be the reason

[@danielchen9841]

Can u show All the path of air to the specific clatch!?

[@fonzy1987hh]

Are the bands submerged in ATF?

[@malcolmhangs9909]

How can I tell if the clutches are okay or not

[@willt1963]

When you "name" the clutch assy' as 3-4 or 5-6 etc, is it obvious to you by the way it is stacked or is it by the manufacturer's design and it's spec'd out in a manual?

[@siuautomotive]

Manufacturer design. The clutch name, such as 3-4, would mean it's applied in 3rd and 4th. Some manufacturers number the clutches, like C1, C2, etc. Some label them as K1, K2 (kinetic or driving), B1, B2 (braking/holding), F1, F2 (freewheeling clutches like a roller clutch or a sprag clutch).

[@deadpossum100]

Is the band used to manually lock in a gear like 3rd or 2nd? Or does the transmission use the bands during normal operation?

[@siuautomotive]

Transmissions that use bands will use them during normal operation. Their purpose is to "hold" a part of the gearset from turning. With a planetary gearset, to get an underdrive, overdrive, or reverse, you need something input, something held, and something output. The band will hold that gearset part from rotating. Newer transmissions use a clutch between the case and the gearset component, but many older transmissions use bands. The most common would be the 4L60(e). It has a 2/4 band that holds the rear sun gear every time it shifts into 2nd and 4th.
There are some bands that are used for manual gear selections and they are typically used to prevent a one-way roller clutch from freewheeling during deceleration. That way you can get engine braking when in manual gears. A turbo 400 will do that to prevent the intermediate sprag from freewheeling in 2nd.

[@willt1963]

Are the clutches soaked in fluid or does the fluid stay behind the pistons?

[@siuautomotive]

The clutches are constantly fed fluid through lubrication circuits. Many builders don't soak the clutches before assembly, but most all service manuals suggest soaking the friction material before install.

[@sneakybogan]

Watched this because I found out today possibly a band in my transmission is broken or faulty and it slips when trying to get out of 3rd gear. Now at least I generally have an idea of what could be happening :/

[@uepaloe4783]

No reverse

[@rickyagravante6720]

Next time sir torque converter how it work step by step again thinkyou of a lot of learning

[@siuautomotive]

Like this one on torque converters? ruclips.net/p/PLCZB2YO2rTxIH8kAXX7fCYKZp1F_DJZEB
The full auto trans curriculum is up on www.automotivetextbook.com/automatic-transmission-curriculum/

[@dimuthukumara4736]

That's

[@mecanicagomes2834]

show