The main purpose of lower two indicators are to show limits (green ranges) to captains for anti-skidding of the wheels When it is in alternate without anti-skid.
In case Normal Brake(green system) u/s is as sensed by BSCU,the alternate system (yellow)takes over automatically and brake pressure (yellow) going to brakes is now available on triple pressure indicator and there is no need to put anti skid to of sw . You can land normally on alternate brakes as good as on normal brakes with no difference what so ever..kindly see
Presentation is good .Needs a little amendment .The anti sw need not be put off for triple pressure indicator to show yellow pressure .Alternate brake(yellow) will take over as soon as normal brake fails and anti skid still operative.That is the beauty of alternate brakes ,that is always available as backup to Normal (green brakes)
مشكور على الفيديو كابتن I've been going through the FCOM and QRH recently regarding the "Residual Brake Pressure" procedure, it's doesn't really explain the cause of it and what the multiple pedal applications in flight do exactly, all I know is that once the gear is downlocked, the system automatically does a brake test where you can see the triple indicator fluctuate a few times. Would really appreciate if you can offer some information regarding that.
Tripple pressure indicator has only yellow pressure and it only comes into picture in alternate braking and parking brake.In flight Normal brake selector valve is off .So when you press brake padels multiple times,in fact you are able to check is alternake brake dual distribution valve is opening well...this is to ascertain that in case normal fails,alteranate will work on padels. In fact now checklist before takeoff is to check your alternate brake is ok by putting antiskid nws switch off and press padels to see if left right brakes getting yellow pressure or not. There is a auxilliary fluid in lines to yellow DDV which operates yellow DDV valve .sometimes air is trapped in this line so while pressing brake pedals,air in auxillary fluid gets cushioned and does not allow Yellow DDV to open .Yellow DDV is the entry point of yellow fluid to braking .....the yellow circuit is unfortunately such that this DDV opening is only dependent on brake padel pressing which through auxillary fluid presses and opens DDV. If there is air in DDV auxillary fluid lines and bleeding don't done well,pressing brake padels will not open DDV and alteranate brake will not work.Now if you put parking brake selector on yellow fluid will be able to go by bypassing DDV to brakes and triþþIepressure indicator PL See my video on A320 brake system
dear friend I have a question about the A320 parking brake system if someone set to ON parking brake in flight is there any indication on the triple indicator and if it is impossible by which valve cut the yellow hydraulic pressure to the parking brake in flight? Thank you!
The dials of the brake pressure and the brake accumulators has a phosphorus lights, it spark in the dark, thanks from the team of Aviation training solutions 😊
Keith Roche yup, in the training manual Airbus stated that 1000 psi is the pressure delivered to prevent skidding the aircraft, I have read it many in the manual, but I think this is when the aircraft is moving, when I do such simulation in the video the aircraft was in a complete stop, no aircraft speed, so may be in the video it is more than 1000 because the aircraft was in a complete stop. I do such scenario on a real aircraft but it was A330, and the you are right the pressure delivered was almost 1000, I will do it on a real A320 and will tell you about the result, many thanks for your feedback and please don't hesitate to share your thoughts 💭 with me again and again, regards, haytham aly from aviation training solutions.
Aviation Training Solutions The result on the aicraft is same as training manual. To simulate the same on moving aircraft; 1. both engines need to be OFF or ENG 2 OFF and PTU OFF, OR EDP#2 OFF and, 2. Yellow Electric Pump OFF. Great video though!
The main purpose of lower two indicators are to show limits (green ranges) to captains for anti-skidding of the wheels When it is in alternate without anti-skid.
thx for the clear instructing. maybe you should also mention about parking brake on that video
thank you a lot sir. easy to understand. nice video
Anytime broooo, appreciated it very much
In case Normal Brake(green system) u/s is as sensed by BSCU,the alternate system (yellow)takes over automatically and brake pressure (yellow) going to brakes is now available on triple pressure indicator and there is no need to put anti skid to of sw .
You can land normally on alternate brakes as good as on normal brakes with no difference what so ever..kindly see
Presentation is good .Needs a little amendment .The anti sw need not be put off for triple pressure indicator to show yellow pressure .Alternate brake(yellow) will take over as soon as normal brake fails and anti skid still operative.That is the beauty of alternate brakes ,that is always available as backup to Normal (green brakes)
great! Only Autobrake is inop since it can be activated by Green hyd' press only.
Nice explanation
There are much more
Thank you ,very nicely explained.
Many many thanks brother 👍
Thank you for your great explanation.
Appreciate your feedback so so much 😊🙂🥰🥰,
There is more interesting videos to watch
As per Tripple Pressure Indicator, the RH Brake system shows residual alternate brake pressure of 350psi approx.
Thank you very much; excelent
Thank you very much 👍👍
Hey you have done good job
Many thanks Carol, appreciate it very much ☺
Thank you sir
You are very welcome sir
مشكور على الفيديو
كابتن
I've been going through the FCOM and QRH recently regarding the "Residual Brake Pressure" procedure, it's doesn't really explain the cause of it and what the multiple pedal applications in flight do exactly, all I know is that once the gear is downlocked, the system automatically does a brake test where you can see the triple indicator fluctuate a few times. Would really appreciate if you can offer some information regarding that.
Sure will do friend
Woow didn't know UA-cam can display right to left format in English
Tripple pressure indicator has only yellow pressure and it only comes into picture in alternate braking and parking brake.In flight Normal brake selector valve is off .So when you press brake padels multiple times,in fact you are able to check is alternake brake dual distribution valve is opening well...this is to ascertain that in case normal fails,alteranate will work on padels.
In fact now checklist before takeoff is to check your alternate brake is ok by putting antiskid
nws switch off and press padels to see if left right brakes getting yellow pressure or not.
There is a auxilliary fluid in lines to yellow DDV which operates yellow DDV valve .sometimes air is trapped in this line so while pressing brake pedals,air in auxillary fluid gets cushioned and does not allow Yellow DDV to open .Yellow DDV is the entry point of yellow fluid to braking .....the yellow circuit is unfortunately such that this DDV opening is only dependent on brake padel pressing which through auxillary fluid presses and opens DDV.
If there is air in DDV auxillary fluid lines and bleeding don't done well,pressing brake padels will not open DDV and alteranate brake will not work.Now if you put parking brake selector on yellow fluid will be able to go by bypassing DDV to brakes and triþþIepressure indicator PL See my video on A320 brake system
ALSO PL ask on skjainial@yahoo.co.in for anything-on A320
Thank you
You are very welcome, I have now a question bank for the A320
shokran, thank you, danke, dyakuyu
You are very welcome sir
When you put the Anti skid off the accumulator is working for the second scenario also! So this info might be wrong
dear friend I have a question about the A320 parking brake system if someone set to ON parking brake in flight is there any indication on the triple indicator and if it is impossible by which valve cut the yellow hydraulic pressure to the parking brake in flight? Thank you!
it is really helpful
Most welcome my friend
Awesome
thanks alot
Ih
Have one question, what is the indicator when i apply a normal brake, i mean indicator to show me that normal brake is applying
How do you energize the accu pres back again?
Put the switch of the yellow electric pump on
ياريت تعمل فيديوهات اكثر
HYD
ELEC
PNEUMATIC
ICE AND RAIN PROTECTION
Sure will do , many thanks for the support , appreciate it very much
Do you have proper servicing of brk yellow accumulator video?
Will try to make a video about your request
When the Anti-skid / NW steering switch is set to OFF , normal braking is lost?
Yes my friend, a transfer from normal to alternate happen by this action
If you don't mind me asking : where are the nose wheel brake bands located?
Boy I had that all wrong I thought wwhen pressing the brakes the lower needles shoul;d move
Only on any yellow system it will move , alternate with or without anti skid , and barking brake
Does any one knows that brake pressure IND have background light???? Or only rely on the other lighting in the dark??? Thank you.
The dials of the brake pressure and the brake accumulators has a phosphorus lights, it spark in the dark, thanks from the team of Aviation training solutions 😊
وكل عام وانتم بخير 🤍🤍🤍
وحضرتك بالف خير وصحه وسلامه يارب العالمين
Can't understand
Braking pressure using parking brake accumulator is approx 1000 psi. The simulator is wrong.
Keith Roche yup, in the training manual Airbus stated that 1000 psi is the pressure delivered to prevent skidding the aircraft, I have read it many in the manual, but I think this is when the aircraft is moving, when I do such simulation in the video the aircraft was in a complete stop, no aircraft speed, so may be in the video it is more than 1000 because the aircraft was in a complete stop. I do such scenario on a real aircraft but it was A330, and the you are right the pressure delivered was almost 1000, I will do it on a real A320 and will tell you about the result, many thanks for your feedback and please don't hesitate to share your thoughts 💭 with me again and again, regards, haytham aly from aviation training solutions.
Aviation Training Solutions The result on the aicraft is same as training manual.
To simulate the same on moving aircraft;
1. both engines need to be OFF or ENG 2 OFF and PTU OFF, OR EDP#2 OFF and,
2. Yellow Electric Pump OFF.
Great video though!
Brick accumulaturrrr