Today's Message Index:
----------------------
1. 06:01 AM - Pneumatics (Martin (Home))
2. 11:39 AM - Landing Gear Question (Bill1200)
3. 11:45 AM - Re: Landing Gear Question (Shane Golden)
4. 11:52 AM - Re: Landing Gear Question (Eric Wobschall)
5. 12:58 PM - Re: Landing Gear Question (Walter Lannon)
6. 01:09 PM - Re: Landing Gear Question (Shane Golden)
7. 01:20 PM - Re: Landing Gear Question (Walter Lannon)
8. 01:36 PM - Re: Landing Gear Question (Eric Wobschall)
9. 01:54 PM - Re: Pneumatics (Didier Blouzard)
10. 04:44 PM - Re: Pneumatics (Vic)
11. 04:52 PM - Re: Re: Pneumatics (Eric Wobschall)
12. 04:58 PM - Re: Re: Pneumatics (Tom Elliott)
13. 05:13 PM - Re: Re: Pneumatics (Eric Wobschall)
14. 05:20 PM - Re: Re: Pneumatics (Eric Wobschall)
15. 05:35 PM - Re: Re: Pneumatics (Martin (Home))
16. 05:53 PM - Re: Re: Pneumatics (Chris Wise)
17. 06:10 PM - Re: Re: Pneumatics (A. Dennis Savarese)
18. 06:11 PM - Re: Re: Pneumatics (Tom Elliott)
19. 06:15 PM - Re: Re: Pneumatics (Eric Wobschall)
20. 06:19 PM - Re: Re: Pneumatics (Eric Wobschall)
21. 06:21 PM - Re: Re: Pneumatics (A. Dennis Savarese)
22. 06:23 PM - Re: Re: Pneumatics (A. Dennis Savarese)
23. 06:34 PM - Re: Re: Pneumatics (Eric Wobschall)
24. 07:12 PM - Re: Re: Pneumatics (William Halverson)
25. 07:12 PM - Re: Re: Pneumatics (William Halverson)
26. 07:16 PM - LUCAS (T A LEWIS)
27. 07:32 PM - F-4 Ejection Barstool | Motoart (Roger Kemp M.D.)
28. 07:34 PM - Re: Landing Gear Question (Bill1200)
29. 08:03 PM - Re: Re: Fw: Major accident avoided (cjpilot710@aol.com)
30. 11:23 PM - Re: Pneumatics (Jan Mevis)
Message 1
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What have most of you been using for lubricating oil?
Martin Mattes
Re: Regarding winterizing I meant charging pneumatic system with alcohol-oil
mix for winter cold proofin
You have to check with Yak 52 maintenance manual first.
I did it but it was long time ago (more then 20 years) and I may be wrong at
some points. Procedure is the same when you are doing regular maintenance
check. First, this should be special lubricant which pneumatic system is
usually charged with (white clear oil, you can fill its smell when you
retract/extend the gear in flight) Second, alcohol 96% Proportion,
volume????(do not remember exact number, 100-150gr/, 50/50 ) Charging:
Discharge air, disconnect Air tank and inject mix in line pipe, connect it
back. (Ones you are doing this drain water condensate from the air tank)
Charge the system with air. Then very important moment: Jack up the plane
,retract and extend gear few times, let this mix spread inside of the
system. That is what I can remember 20 years later.
But it is always better to check with manual.
Vadim
Message 2
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| Subject: | Landing Gear Question |
On the 52, when the gear are extended and supporting the airplane, what keeps them
extended if there is total loss of air pressure?
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=286414#286414
Message 3
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| Subject: | Landing Gear Question |
Down locks inside the actuators. Works similar to an air chuck. Air must be
applied to the "UP" side of the actuator for these to disengage.
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Bill1200
Sent: Sunday, February 14, 2010 2:39 PM
Subject: Yak-List: Landing Gear Question
On the 52, when the gear are extended and supporting the airplane, what
keeps them extended if there is total loss of air pressure?
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=286414#286414
Message 4
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| Subject: | Re: Landing Gear Question |
over-center locking
On Feb 14, 2010, at 2:38 PM, Bill1200 wrote:
>
> On the 52, when the gear are extended and supporting the airplane,
> what keeps them extended if there is total loss of air pressure?
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=286414#286414
>
>
Message 5
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| Subject: | Re: Landing Gear Question |
Over center locking is the correct answer.
To expand on it a bit the down lock is the over center position of the drag
link (or landing gear brace). All externally applied loads toward gear up
are reacted through that structure.
To ensure it stays in that position an over-center lock is used. In the CJ6
this is an internal ball lock assembly inside the gear actuator.
I was under the impression that the Yak 52 employed an external latch
assembly on the drag link but don't know for sure so someone please let me
know. This is the typical method used on Western aircraft.
In either case this lock, or latch, is not designed to carry the down lock
loads - just ensures that the drag link is in position to do so.
Walt
----- Original Message -----
From: "Eric Wobschall" <eric@buffaloskyline.com>
Sent: Sunday, February 14, 2010 11:52 AM
Subject: Re: Yak-List: Landing Gear Question
>
> over-center locking
>
>
> On Feb 14, 2010, at 2:38 PM, Bill1200 wrote:
>
>>
>> On the 52, when the gear are extended and supporting the airplane, what
>> keeps them extended if there is total loss of air pressure?
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=286414#286414
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
Message 6
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| Subject: | Landing Gear Question |
In the -52 the gear is kept in the down position by the down-locks in the
actuators. Only the up-locks are external. Once the gear is locked down
air is required on the up side to retract.
Shane
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Walter Lannon
Sent: Sunday, February 14, 2010 3:58 PM
Subject: Re: Yak-List: Landing Gear Question
Over center locking is the correct answer.
To expand on it a bit the down lock is the over center position of the drag
link (or landing gear brace). All externally applied loads toward gear up
are reacted through that structure.
To ensure it stays in that position an over-center lock is used. In the CJ6
this is an internal ball lock assembly inside the gear actuator.
I was under the impression that the Yak 52 employed an external latch
assembly on the drag link but don't know for sure so someone please let me
know. This is the typical method used on Western aircraft.
In either case this lock, or latch, is not designed to carry the down lock
loads - just ensures that the drag link is in position to do so.
Walt
----- Original Message -----
From: "Eric Wobschall" <eric@buffaloskyline.com>
Sent: Sunday, February 14, 2010 11:52 AM
Subject: Re: Yak-List: Landing Gear Question
>
> over-center locking
>
>
> On Feb 14, 2010, at 2:38 PM, Bill1200 wrote:
>
>>
>> On the 52, when the gear are extended and supporting the airplane, what
>> keeps them extended if there is total loss of air pressure?
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=286414#286414
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
Message 7
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| Subject: | Re: Landing Gear Question |
Thanks Shane;
Don't know where I got that idea. Maybe some other Yak model??
Walt
----- Original Message -----
From: "Shane Golden" <scgsmg@bellsouth.net>
Sent: Sunday, February 14, 2010 1:08 PM
Subject: RE: Yak-List: Landing Gear Question
>
> In the -52 the gear is kept in the down position by the down-locks in the
> actuators. Only the up-locks are external. Once the gear is locked down
> air is required on the up side to retract.
>
> Shane
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Walter Lannon
> Sent: Sunday, February 14, 2010 3:58 PM
> To: yak-list@matronics.com
> Subject: Re: Yak-List: Landing Gear Question
>
>
> Over center locking is the correct answer.
> To expand on it a bit the down lock is the over center position of the
> drag
> link (or landing gear brace). All externally applied loads toward gear up
> are reacted through that structure.
>
> To ensure it stays in that position an over-center lock is used. In the
> CJ6
>
> this is an internal ball lock assembly inside the gear actuator.
> I was under the impression that the Yak 52 employed an external latch
> assembly on the drag link but don't know for sure so someone please let me
> know. This is the typical method used on Western aircraft.
>
> In either case this lock, or latch, is not designed to carry the down lock
> loads - just ensures that the drag link is in position to do so.
>
> Walt
>
> ----- Original Message -----
> From: "Eric Wobschall" <eric@buffaloskyline.com>
> To: <yak-list@matronics.com>
> Sent: Sunday, February 14, 2010 11:52 AM
> Subject: Re: Yak-List: Landing Gear Question
>
>
>>
>> over-center locking
>>
>>
>> On Feb 14, 2010, at 2:38 PM, Bill1200 wrote:
>>
>>>
>>> On the 52, when the gear are extended and supporting the airplane, what
>>> keeps them extended if there is total loss of air pressure?
>>>
>>>
>>>
>>>
>>> Read this topic online here:
>>>
>>> http://forums.matronics.com/viewtopic.php?p=286414#286414
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>>
>>
>>
>
>
>
Message 8
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| Subject: | Re: Landing Gear Question |
Walter is correct. The gear-down is of an over-center design, and the
down locks are only to keep the gear from being kicked back from over
center during a bounce or what have you. The weight of the airplane is
not acting on those locking mechanisms. To pull the gear back from
over-center requires the lock to be released and the actuator pull
back on the joint.
On Feb 14, 2010, at 4:08 PM, Shane Golden wrote:
>
> In the -52 the gear is kept in the down position by the down-locks
> in the
> actuators. Only the up-locks are external. Once the gear is locked
> down
> air is required on the up side to retract.
>
> Shane
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Walter
> Lannon
> Sent: Sunday, February 14, 2010 3:58 PM
> To: yak-list@matronics.com
> Subject: Re: Yak-List: Landing Gear Question
>
>
> Over center locking is the correct answer.
> To expand on it a bit the down lock is the over center position of
> the drag
> link (or landing gear brace). All externally applied loads toward
> gear up
> are reacted through that structure.
>
> To ensure it stays in that position an over-center lock is used. In
> the CJ6
>
> this is an internal ball lock assembly inside the gear actuator.
> I was under the impression that the Yak 52 employed an external latch
> assembly on the drag link but don't know for sure so someone please
> let me
> know. This is the typical method used on Western aircraft.
>
> In either case this lock, or latch, is not designed to carry the
> down lock
> loads - just ensures that the drag link is in position to do so.
>
> Walt
>
> ----- Original Message -----
> From: "Eric Wobschall" <eric@buffaloskyline.com>
> To: <yak-list@matronics.com>
> Sent: Sunday, February 14, 2010 11:52 AM
> Subject: Re: Yak-List: Landing Gear Question
>
>
>> >
>>
>> over-center locking
>>
>>
>> On Feb 14, 2010, at 2:38 PM, Bill1200 wrote:
>>
>>>
>>> On the 52, when the gear are extended and supporting the
>>> airplane, what
>>> keeps them extended if there is total loss of air pressure?
>>>
>>>
>>>
>>>
>>> Read this topic online here:
>>>
>>> http://forums.matronics.com/viewtopic.php?p=286414#286414
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>>
>>
>>
>
>
Message 9
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It is a mix of 50% 100% Ethanol (not easy to find but you can order it from
a good drugery) and 50% glycerine.
Then the advice of my experienced russian mechanic is not to spill it
allover the main air system but to put a few cc (written into the
maintenance manual) into the landing gear actuator.
So you know where it goes..
If you don't have the maintenance manual I can search it for you.
Didier
2010/2/14 Martin (Home) <harley@siriusconinc.com>
>
>
> What have most of you been using for lubricating oil?
>
> Martin Mattes
>
>
> Re: Regarding winterizing I meant charging pneumatic system with
> alcohol-oil mix for winter cold proofin
>
> You have to check with Yak 52 maintenance manual first.
> I did it but it was long time ago (more then 20 years) and I may be wrong
> at some points. Procedure is the same when you are doing regular maintenance
> check. First, this should be special lubricant which pneumatic system is
> usually charged with (white clear oil, you can fill its smell when you
> retract/extend the gear in flight) Second, alcohol 96% Proportion,
> volume????(do not remember exact number, 100-150gr/, 50/50 ) Charging:
> Discharge air, disconnect Air tank and inject mix in line pipe, connect it
> back. (Ones you are doing this drain water condensate from the air tank)
> Charge the system with air. Then very important moment: Jack up the plane
> ,retract and extend gear few times, let this mix spread inside of the
> system. That is what I can remember 20 years later.
> But it is always better to check with manual.
>
> Vadim
>
>
--
Didier BLOUZARD
didier.blouzard@gmail.com
0624243672
Message 10
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Hello,
truck garages should offer an antifreeze as trucks usually have pneumatic brakes.
So this should be the right stuff that could possibly include some sort of
lubricant for the seals as well.
Vic
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=286453#286453
Message 11
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There is something called brake line anit-freeze that we use on
airport trucks and blowers. I would NOT assume that it's suitable for
the air system in a Yak / CJ. Is this really necessary? Winter is
almost over.
If it's long term and there's a lot of snot in there, there is some
danger of bollocksing up shuttle valves.
On Feb 14, 2010, at 7:44 PM, Vic wrote:
>
> Hello,
>
> truck garages should offer an antifreeze as trucks usually have
> pneumatic brakes. So this should be the right stuff that could
> possibly include some sort of lubricant for the seals as well.
>
> Vic
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=286453#286453
>
>
Message 12
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Ok what in the hell is a (bollocks)?
Tom Elliott
CJ-6A NX63727
702-595-2680
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Eric Wobschall
Sent: Sunday, February 14, 2010 4:52 PM
Subject: Re: Yak-List: Re: Pneumatics
There is something called brake line anit-freeze that we use on airport
trucks and blowers. I would NOT assume that it's suitable for the air system
in a Yak / CJ. Is this really necessary? Winter is almost over.
If it's long term and there's a lot of snot in there, there is some danger
of bollocksing up shuttle valves.
On Feb 14, 2010, at 7:44 PM, Vic wrote:
>
> Hello,
>
> truck garages should offer an antifreeze as trucks usually have
> pneumatic brakes. So this should be the right stuff that could
> possibly include some sort of lubricant for the seals as well.
>
> Vic
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=286453#286453
>
>
Message 13
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Screw up, foul up, gum up. I this case, uncleared air system snot
(which I think consists of water, oil and glycerine) can sit in the
body of the shuttle valves thereby getting it stuck. The front-rear
gear valve is more susceptible, and there is also a main-emergency
valve. This from memory. Dennis, Doug and their ilk can verify or
correct.
On Feb 14, 2010, at 7:56 PM, Tom Elliott wrote:
>
> Ok what in the hell is a (bollocks)?
> Tom Elliott
> CJ-6A NX63727
> 702-595-2680
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Eric
> Wobschall
> Sent: Sunday, February 14, 2010 4:52 PM
> To: yak-list@matronics.com
> Subject: Re: Yak-List: Re: Pneumatics
>
> >
>
> There is something called brake line anit-freeze that we use on
> airport
> trucks and blowers. I would NOT assume that it's suitable for the
> air system
> in a Yak / CJ. Is this really necessary? Winter is almost over.
>
> If it's long term and there's a lot of snot in there, there is some
> danger
> of bollocksing up shuttle valves.
>
>
> On Feb 14, 2010, at 7:44 PM, Vic wrote:
>
>>
>> Hello,
>>
>> truck garages should offer an antifreeze as trucks usually have
>> pneumatic brakes. So this should be the right stuff that could
>> possibly include some sort of lubricant for the seals as well.
>>
>> Vic
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=286453#286453
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
Message 14
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Bollocks is a general expletive used by British types. Probably a
suitable substitute for the F-bomb. Example: "This Lucas electrical
system is all bollocksed up. Why did we still use cloth insulation in
the 70's?"
On Feb 14, 2010, at 7:56 PM, Tom Elliott wrote:
>
> Ok what in the hell is a (bollocks)?
> Tom Elliott
> CJ-6A NX63727
> 702-595-2680
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Eric
> Wobschall
> Sent: Sunday, February 14, 2010 4:52 PM
> To: yak-list@matronics.com
> Subject: Re: Yak-List: Re: Pneumatics
>
> >
>
> There is something called brake line anit-freeze that we use on
> airport
> trucks and blowers. I would NOT assume that it's suitable for the
> air system
> in a Yak / CJ. Is this really necessary? Winter is almost over.
>
> If it's long term and there's a lot of snot in there, there is some
> danger
> of bollocksing up shuttle valves.
>
>
> On Feb 14, 2010, at 7:44 PM, Vic wrote:
>
>>
>> Hello,
>>
>> truck garages should offer an antifreeze as trucks usually have
>> pneumatic brakes. So this should be the right stuff that could
>> possibly include some sort of lubricant for the seals as well.
>>
>> Vic
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=286453#286453
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
Message 15
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winter is just starting in Canada... the coldest I got her started was 26F
(-3C) without the "shower of sparks" ...its has never worked (replaced the
coil, the rotor...etc) and yes we freeze our ass off once airborne.....
----- Original Message -----
From: "Eric Wobschall" <eric@buffaloskyline.com>
Sent: Sunday, February 14, 2010 7:51 PM
Subject: Re: Yak-List: Re: Pneumatics
>
> There is something called brake line anit-freeze that we use on airport
> trucks and blowers. I would NOT assume that it's suitable for the air
> system in a Yak / CJ. Is this really necessary? Winter is almost over.
>
> If it's long term and there's a lot of snot in there, there is some
> danger of bollocksing up shuttle valves.
>
>
> On Feb 14, 2010, at 7:44 PM, Vic wrote:
>
>>
>> Hello,
>>
>> truck garages should offer an antifreeze as trucks usually have
>> pneumatic brakes. So this should be the right stuff that could possibly
>> include some sort of lubricant for the seals as well.
>>
>> Vic
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=286453#286453
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
Message 16
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Hi All,
When we do the 100 hourly or annual, whichever comes first, we jack the
aircraft and carry out the emergency valve operation, which lowers and locks
the undercarriage..
To get things back to normal one depletes the air in the system with valves
closed by squeezing the brake lever.
Thus a fair amount of air is used and the system has to be recharged.
When recharging we put a small amount of light machine oil in the system and
the air going in spreads this around.
We have stripped and checked our uplocks and they were in top condition, no
sign of rust or pitting.
This would be a good indication of the condition of the rest of the
Pneumatic components.
I have heard of undercarriage failure, either left or right, due to the
uplocks failing. In one instance retaining nut let go due to rust or
corrosion.
If never checked, would strongly recommend doing it as it is not difficult.
Had new seals made as original seals were a bit brittle.
Have just received the Kimball oil shut off valve and scavenge pump.
Aircraft stood for 3 weeks and have lock due to oil bypassing non return
valve.
Oil level is down.
Believe that the oil shut off valve will fix this.
We already have manifold drain.
Cheers,
Chris Wise
----- Original Message -----
From: "Eric Wobschall" <eric@buffaloskyline.com>
Sent: Monday, February 15, 2010 11:43 AM
Subject: Re: Yak-List: Re: Pneumatics
>
> Screw up, foul up, gum up. I this case, uncleared air system snot
> (which I think consists of water, oil and glycerine) can sit in the
> body of the shuttle valves thereby getting it stuck. The front-rear
> gear valve is more susceptible, and there is also a main-emergency
> valve. This from memory. Dennis, Doug and their ilk can verify or
> correct.
>
>
> On Feb 14, 2010, at 7:56 PM, Tom Elliott wrote:
>
>>
>> Ok what in the hell is a (bollocks)?
>> Tom Elliott
>> CJ-6A NX63727
>> 702-595-2680
>>
>> -----Original Message-----
>> From: owner-yak-list-server@matronics.com
>> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Eric
>> Wobschall
>> Sent: Sunday, February 14, 2010 4:52 PM
>> To: yak-list@matronics.com
>> Subject: Re: Yak-List: Re: Pneumatics
>>
>> >
>>
>> There is something called brake line anit-freeze that we use on
>> airport
>> trucks and blowers. I would NOT assume that it's suitable for the
>> air system
>> in a Yak / CJ. Is this really necessary? Winter is almost over.
>>
>> If it's long term and there's a lot of snot in there, there is some
>> danger
>> of bollocksing up shuttle valves.
>>
>>
>> On Feb 14, 2010, at 7:44 PM, Vic wrote:
>>
>>>
>>> Hello,
>>>
>>> truck garages should offer an antifreeze as trucks usually have
>>> pneumatic brakes. So this should be the right stuff that could
>>> possibly include some sort of lubricant for the seals as well.
>>>
>>> Vic
>>>
>>>
>>>
>>>
>>> Read this topic online here:
>>>
>>> http://forums.matronics.com/viewtopic.php?p=286453#286453
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
--------------------------------------------------------------------------------
Checked by AVG - www.avg.com
19:35:00
Message 17
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On the Yak 52, shuttle valves have hard, rubber balls inside them. The
shuttle valves move only when the emergency air valve is turned on. The
original shuttle valves on the CJ (not Doug's replacements with SS balls
inside) can easily rust and corrode and definitely cause problems. The
front and rear gear selectors can corrode and cause air leaks.
Particularly the rear gear selector because no one operates the gear
from the rear cockpit. Most people don't even do a gear retraction test
using the rear cockpit selector during the annual condition inspection.
Then one day the darn thing starts to leak and bingo, you now have a
pain in the rear problem of replacing it. The extremely hard to find
parts are the pipe to M12 metric flare fittings. If you tear one of
them up trying to remove it from the old selector, you're in deep do-do
because they are very hard to come by.
Dennis
----- Original Message -----
From: Eric Wobschall
To: yak-list@matronics.com
Sent: Sunday, February 14, 2010 7:13 PM
Subject: Re: Yak-List: Re: Pneumatics
<eric@buffaloskyline.com>
Screw up, foul up, gum up. I this case, uncleared air system snot
(which I think consists of water, oil and glycerine) can sit in the
body of the shuttle valves thereby getting it stuck. The front-rear
gear valve is more susceptible, and there is also a main-emergency
valve. This from memory. Dennis, Doug and their ilk can verify or
correct.
On Feb 14, 2010, at 7:56 PM, Tom Elliott wrote:
>
> Ok what in the hell is a (bollocks)?
> Tom Elliott
> CJ-6A NX63727
> 702-595-2680
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Eric
> Wobschall
> Sent: Sunday, February 14, 2010 4:52 PM
> To: yak-list@matronics.com
> Subject: Re: Yak-List: Re: Pneumatics
>
<eric@buffaloskyline.com
> >
>
> There is something called brake line anit-freeze that we use on
> airport
> trucks and blowers. I would NOT assume that it's suitable for the
> air system
> in a Yak / CJ. Is this really necessary? Winter is almost over.
>
> If it's long term and there's a lot of snot in there, there is some
> danger
> of bollocksing up shuttle valves.
>
>
> On Feb 14, 2010, at 7:44 PM, Vic wrote:
>
>>
>> Hello,
>>
>> truck garages should offer an antifreeze as trucks usually have
>> pneumatic brakes. So this should be the right stuff that could
>> possibly include some sort of lubricant for the seals as well.
>>
>> Vic
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=286453#286453
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
>
>
>
>
>
>
Message 18
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OK! Now I know! When you use it with the word LUCAS all is clear. Besides
the F word working
on a LUCAS system I have created many new appropriate words.
Tom Elliott
CJ-6A NX63727
702-595-2680
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Eric Wobschall
Sent: Sunday, February 14, 2010 5:20 PM
Subject: Re: Yak-List: Re: Pneumatics
Bollocks is a general expletive used by British types. Probably a suitable
substitute for the F-bomb. Example: "This Lucas electrical system is all
bollocksed up. Why did we still use cloth insulation in the 70's?"
On Feb 14, 2010, at 7:56 PM, Tom Elliott wrote:
>
> Ok what in the hell is a (bollocks)?
> Tom Elliott
> CJ-6A NX63727
> 702-595-2680
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Eric
> Wobschall
> Sent: Sunday, February 14, 2010 4:52 PM
> To: yak-list@matronics.com
> Subject: Re: Yak-List: Re: Pneumatics
>
> --> <eric@buffaloskyline.com
> >
>
> There is something called brake line anit-freeze that we use on
> airport trucks and blowers. I would NOT assume that it's suitable for
> the air system in a Yak / CJ. Is this really necessary? Winter is
> almost over.
>
> If it's long term and there's a lot of snot in there, there is some
> danger of bollocksing up shuttle valves.
>
>
> On Feb 14, 2010, at 7:44 PM, Vic wrote:
>
>>
>> Hello,
>>
>> truck garages should offer an antifreeze as trucks usually have
>> pneumatic brakes. So this should be the right stuff that could
>> possibly include some sort of lubricant for the seals as well.
>>
>> Vic
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=286453#286453
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
Message 19
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|
Preheat I hope... MInimum engine temp for the M-14P is 41F, right?
Buffalo, NY area here. Ready for spring.
I did make a groovy cowl heater with a disk heater from Harbor Freight
and some off the shelf HVAC duct parts. I had considered using some of
these heating pads available from farm supply places (really cheap),
but there are so many things to heat. This convection method is pretty
rapid, and covers everything except the oil cooler. With the 25-60 oil
in there, I seem to get away with it.
On Feb 14, 2010, at 8:34 PM, Martin (Home) wrote:
> >
>
> winter is just starting in Canada... the coldest I got her started
> was 26F (-3C) without the "shower of sparks" ...its has never worked
> (replaced the coil, the rotor...etc) and yes we freeze our ass off
> once airborne.....
>
>
> ----- Original Message ----- From: "Eric Wobschall" <eric@buffaloskyline.com
> >
> To: <yak-list@matronics.com>
> Sent: Sunday, February 14, 2010 7:51 PM
> Subject: Re: Yak-List: Re: Pneumatics
>
>
>> >
>>
>> There is something called brake line anit-freeze that we use on
>> airport trucks and blowers. I would NOT assume that it's suitable
>> for the air system in a Yak / CJ. Is this really necessary? Winter
>> is almost over.
>>
>> If it's long term and there's a lot of snot in there, there is some
>> danger of bollocksing up shuttle valves.
>>
>>
>> On Feb 14, 2010, at 7:44 PM, Vic wrote:
>>
>>>
>>> Hello,
>>>
>>> truck garages should offer an antifreeze as trucks usually have
>>> pneumatic brakes. So this should be the right stuff that could
>>> possibly include some sort of lubricant for the seals as well.
>>>
>>> Vic
>>>
>>>
>>>
>>>
>>> Read this topic online here:
>>>
>>> http://forums.matronics.com/viewtopic.php?p=286453#286453
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>>
>
>
Message 20
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|
Why do the British drink warm beer? Because they have Lucas
refrigerators. Old one, I know.
On Feb 14, 2010, at 9:09 PM, Tom Elliott wrote:
>
> OK! Now I know! When you use it with the word LUCAS all is clear.
> Besides
> the F word working
> on a LUCAS system I have created many new appropriate words.
>
> Tom Elliott
> CJ-6A NX63727
> 702-595-2680
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Eric
> Wobschall
> Sent: Sunday, February 14, 2010 5:20 PM
> To: yak-list@matronics.com
> Subject: Re: Yak-List: Re: Pneumatics
>
> >
>
> Bollocks is a general expletive used by British types. Probably a
> suitable
> substitute for the F-bomb. Example: "This Lucas electrical system is
> all
> bollocksed up. Why did we still use cloth insulation in the 70's?"
>
>
> On Feb 14, 2010, at 7:56 PM, Tom Elliott wrote:
>
>>
>> Ok what in the hell is a (bollocks)?
>> Tom Elliott
>> CJ-6A NX63727
>> 702-595-2680
>>
>> -----Original Message-----
>> From: owner-yak-list-server@matronics.com
>> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Eric
>> Wobschall
>> Sent: Sunday, February 14, 2010 4:52 PM
>> To: yak-list@matronics.com
>> Subject: Re: Yak-List: Re: Pneumatics
>>
>> --> <eric@buffaloskyline.com
>>>
>>
>> There is something called brake line anit-freeze that we use on
>> airport trucks and blowers. I would NOT assume that it's suitable for
>> the air system in a Yak / CJ. Is this really necessary? Winter is
>> almost over.
>>
>> If it's long term and there's a lot of snot in there, there is some
>> danger of bollocksing up shuttle valves.
>>
>>
>> On Feb 14, 2010, at 7:44 PM, Vic wrote:
>>
>>>
>>> Hello,
>>>
>>> truck garages should offer an antifreeze as trucks usually have
>>> pneumatic brakes. So this should be the right stuff that could
>>> possibly include some sort of lubricant for the seals as well.
>>>
>>> Vic
>>>
>>>
>>>
>>>
>>> Read this topic online here:
>>>
>>> http://forums.matronics.com/viewtopic.php?p=286453#286453
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
Message 21
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|
Have you replaced the actual "shower of sparks" (starting coil) unit?
It is located on the back side of the firewall above and to the left of
the over voltage protection unit. It could also very easily be the
starting coil wire itself. Seen this many times. You will need to
purchase 5 mm wire to replace it.
You can check the spark by first making sure the main air is off. Next,
squeeze off all the air in the system using the brake handle. When it
no longer goes "swish" when you release the brake handle, move to the
next step. Now remove the starting coil wire from the left magneto cap.
Place the end of the starting coil wire about 1/2" from any metal on
the engine. Now turn on the BATT and IGN switches in the cockpit and
press the start button. It would be best to have someone look at the
end of the starting coil wire to check the spark. It should jump about
1/2". It doesn't, do you hear the starting coil buzzing when you press
the button? If yes, replace the starting coil wire and see if that
doesn't fix your problem. Also while you have the mag cap off, clean
the contacts, particularly the starting coil contact and clean the ring
around the outside of the rotor cap. Its where the starting coil
contact comes in contact with the rotor. If the starting coil wire
doesn't fix the problem, order a starting coil from Doug Sapp. The CJ's
starting coil is identical (even has the same part number stamped in the
case as the Russian unit) to the Russian unit.
Dennis
----- Original Message -----
From: Martin (Home)
To: yak-list@matronics.com
Sent: Sunday, February 14, 2010 7:34 PM
Subject: Re: Yak-List: Re: Pneumatics
<harley@siriusconinc.com>
winter is just starting in Canada... the coldest I got her started was
26F
(-3C) without the "shower of sparks" ...its has never worked (replaced
the
coil, the rotor...etc) and yes we freeze our ass off once
airborne.....
----- Original Message -----
From: "Eric Wobschall" <eric@buffaloskyline.com>
To: <yak-list@matronics.com>
Sent: Sunday, February 14, 2010 7:51 PM
Subject: Re: Yak-List: Re: Pneumatics
<eric@buffaloskyline.com>
>
> There is something called brake line anit-freeze that we use on
airport
> trucks and blowers. I would NOT assume that it's suitable for the
air
> system in a Yak / CJ. Is this really necessary? Winter is almost
over.
>
> If it's long term and there's a lot of snot in there, there is some
> danger of bollocksing up shuttle valves.
>
>
> On Feb 14, 2010, at 7:44 PM, Vic wrote:
>
>>
>> Hello,
>>
>> truck garages should offer an antifreeze as trucks usually have
>> pneumatic brakes. So this should be the right stuff that could
possibly
>> include some sort of lubricant for the seals as well.
>>
>> Vic
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=286453#286453
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
>
>
Message 22
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|
What about doing a gear retraction during the annual from the rear
cockpit?
Dennis
----- Original Message -----
From: Chris Wise
To: yak-list@matronics.com
Sent: Sunday, February 14, 2010 7:52 PM
Subject: Re: Yak-List: Re: Pneumatics
Hi All,
When we do the 100 hourly or annual, whichever comes first, we jack
the
aircraft and carry out the emergency valve operation, which lowers and
locks
the undercarriage..
To get things back to normal one depletes the air in the system with
valves
closed by squeezing the brake lever.
Thus a fair amount of air is used and the system has to be recharged.
When recharging we put a small amount of light machine oil in the
system and
the air going in spreads this around.
We have stripped and checked our uplocks and they were in top
condition, no
sign of rust or pitting.
This would be a good indication of the condition of the rest of the
Pneumatic components.
I have heard of undercarriage failure, either left or right, due to
the
uplocks failing. In one instance retaining nut let go due to rust or
corrosion.
If never checked, would strongly recommend doing it as it is not
difficult.
Had new seals made as original seals were a bit brittle.
Have just received the Kimball oil shut off valve and scavenge pump.
Aircraft stood for 3 weeks and have lock due to oil bypassing non
return
valve.
Oil level is down.
Believe that the oil shut off valve will fix this.
We already have manifold drain.
Cheers,
Chris Wise
----- Original Message -----
From: "Eric Wobschall" <eric@buffaloskyline.com>
To: <yak-list@matronics.com>
Sent: Monday, February 15, 2010 11:43 AM
Subject: Re: Yak-List: Re: Pneumatics
<eric@buffaloskyline.com>
>
> Screw up, foul up, gum up. I this case, uncleared air system snot
> (which I think consists of water, oil and glycerine) can sit in the
> body of the shuttle valves thereby getting it stuck. The front-rear
> gear valve is more susceptible, and there is also a main-emergency
> valve. This from memory. Dennis, Doug and their ilk can verify or
> correct.
>
>
> On Feb 14, 2010, at 7:56 PM, Tom Elliott wrote:
>
>>
>> Ok what in the hell is a (bollocks)?
>> Tom Elliott
>> CJ-6A NX63727
>> 702-595-2680
>>
>> -----Original Message-----
>> From: owner-yak-list-server@matronics.com
>> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Eric
>> Wobschall
>> Sent: Sunday, February 14, 2010 4:52 PM
>> To: yak-list@matronics.com
>> Subject: Re: Yak-List: Re: Pneumatics
>>
<eric@buffaloskyline.com
>> >
>>
>> There is something called brake line anit-freeze that we use on
>> airport
>> trucks and blowers. I would NOT assume that it's suitable for the
>> air system
>> in a Yak / CJ. Is this really necessary? Winter is almost over.
>>
>> If it's long term and there's a lot of snot in there, there is some
>> danger
>> of bollocksing up shuttle valves.
>>
>>
>> On Feb 14, 2010, at 7:44 PM, Vic wrote:
>>
>>>
>>> Hello,
>>>
>>> truck garages should offer an antifreeze as trucks usually have
>>> pneumatic brakes. So this should be the right stuff that could
>>> possibly include some sort of lubricant for the seals as well.
>>>
>>> Vic
>>>
>>>
>>>
>>>
>>> Read this topic online here:
>>>
>>> http://forums.matronics.com/viewtopic.php?p=286453#286453
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
>
>
-------------------------------------------------------------------------
-------
Checked by AVG - www.avg.com
19:35:00
Message 23
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|
I do a whole multi-step process that some clever person wrote that
includes purging the system of air until the (fart?) valve releases.
It also includes a stage where the less powerful emergency system is
blowing the gear down while the main system is selected to up. The
gear is partially down at that point, and that lets you move the gear
a bit by hand, which I guess might reveal some issues you wouldn't
otherwise detect. That list ddoesn't include cycling the gear from the
back, but I always do that before and after the aforementioned process.
On Feb 14, 2010, at 9:22 PM, A. Dennis Savarese wrote:
> What about doing a gear retraction during the annual from the rear
> cockpit?
> Dennis
> ----- Original Message -----
> From: Chris Wise
> To: yak-list@matronics.com
> Sent: Sunday, February 14, 2010 7:52 PM
> Subject: Re: Yak-List: Re: Pneumatics
>
>
> Hi All,
>
> When we do the 100 hourly or annual, whichever comes first, we jack
> the
> aircraft and carry out the emergency valve operation, which lowers
> and locks
> the undercarriage..
> To get things back to normal one depletes the air in the system with
> valves
> closed by squeezing the brake lever.
> Thus a fair amount of air is used and the system has to be recharged.
> When recharging we put a small amount of light machine oil in the
> system and
> the air going in spreads this around.
> We have stripped and checked our uplocks and they were in top
> condition, no
> sign of rust or pitting.
> This would be a good indication of the condition of the rest of the
> Pneumatic components.
> I have heard of undercarriage failure, either left or right, due to
> the
> uplocks failing. In one instance retaining nut let go due to rust or
> corrosion.
> If never checked, would strongly recommend doing it as it is not
> difficult.
> Had new seals made as original seals were a bit brittle.
>
> Have just received the Kimball oil shut off valve and scavenge pump.
> Aircraft stood for 3 weeks and have lock due to oil bypassing non
> return
> valve.
> Oil level is down.
> Believe that the oil shut off valve will fix this.
> We already have manifold drain.
>
> Cheers,
> Chris Wise
> ----- Original Message -----
> From: "Eric Wobschall" <eric@buffaloskyline.com>
> To: <yak-list@matronics.com>
> Sent: Monday, February 15, 2010 11:43 AM
> Subject: Re: Yak-List: Re: Pneumatics
>
>
> >
> >
> > Screw up, foul up, gum up. I this case, uncleared air system snot
> > (which I think consists of water, oil and glycerine) can sit in the
> > body of the shuttle valves thereby getting it stuck. The front-rear
> > gear valve is more susceptible, and there is also a main-emergency
> > valve. This from memory. Dennis, Doug and their ilk can verify or
> > correct.
> >
> >
> > On Feb 14, 2010, at 7:56 PM, Tom Elliott wrote:
> >
> >>
> >> Ok what in the hell is a (bollocks)?
> >> Tom Elliott
> >> CJ-6A NX63727
> >> 702-595-2680
> >>
> >> -----Original Message-----
> >> From: owner-yak-list-server@matronics.com
> >> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Eric
> >> Wobschall
> >> Sent: Sunday, February 14, 2010 4:52 PM
> >> To: yak-list@matronics.com
> >> Subject: Re: Yak-List: Re: Pneumatics
> >>
> >> >
> >>
> >> There is something called brake line anit-freeze that we use on
> >> airport
> >> trucks and blowers. I would NOT assume that it's suitable for the
> >> air system
> >> in a Yak / CJ. Is this really necessary? Winter is almost over.
> >>
> >> If it's long term and there's a lot of snot in there, there is some
> >> danger
> >> of bollocksing up shuttle valves.
> >>
> >>
> >> On Feb 14, 2010, at 7:44 PM, Vic wrote:
> >>
> >>>
> >>> Hello,
> >>>
> >>> truck garages should offer an antifreeze as trucks usually have
> >>> pneumatic brakes. So this should be the right stuff that could
> >>> possibly include some sort of lubricant for the seals as well.
> >>>
> >>> Vic
> >>>
> >>>
> >>>
> >>>
> >>> Read this topic online here:
> >>>
> >>> http://forums.matronics.com/viewtopic.php?p=286453#286453
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >
> >
> >
> >
> >
>
>
> --------------------------------------------------------------------------------
>
>
> Checked by AVG - http://www.matronics========================<;
> via the Web href="http://forums.matronics.com">http://forums.matronics.com
> _p; generous bsp; href="http://www.matronics.com/contribution
> ">http://www.matronics.com/c================
>
>
Message 24
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|
I know in my YAK-55 the snot builds up and causes the check valves to
leak .... so the system does not maintain pressure for more than two
weeks and I have to charge the system from a SCUBA tank. I know it's
time to disassemble the tubing and clean things in gasoline when she
loses pressure over a week.
At 05:13 PM 2/14/2010, Eric Wobschall wrote:
>
>Screw up, foul up, gum up. I this case, uncleared air system snot
>(which I think consists of water, oil and glycerine) can sit in the
>body of the shuttle valves thereby getting it stuck. The front-rear
>gear valve is more susceptible, and there is also a main-emergency
>valve. This from memory. Dennis, Doug and their ilk can verify or
>correct.
>
>
>On Feb 14, 2010, at 7:56 PM, Tom Elliott wrote:
>
>>
>>Ok what in the hell is a (bollocks)?
>>Tom Elliott
>>CJ-6A NX63727
>>702-595-2680
>>
>>-----Original Message-----
>>From: owner-yak-list-server@matronics.com
>>[mailto:owner-yak-list-server@matronics.com] On Behalf Of Eric
>>Wobschall
>>Sent: Sunday, February 14, 2010 4:52 PM
>>To: yak-list@matronics.com
>>Subject: Re: Yak-List: Re: Pneumatics
>>
>>
>>There is something called brake line anit-freeze that we use on
>>airport
>>trucks and blowers. I would NOT assume that it's suitable for the
>>air system
>>in a Yak / CJ. Is this really necessary? Winter is almost over.
>>
>>If it's long term and there's a lot of snot in there, there is some
>>danger
>>of bollocksing up shuttle valves.
>>
>>
>>On Feb 14, 2010, at 7:44 PM, Vic wrote:
>>
>>>
>>>Hello,
>>>
>>>truck garages should offer an antifreeze as trucks usually have
>>>pneumatic brakes. So this should be the right stuff that could
>>>possibly include some sort of lubricant for the seals as well.
>>>
>>>Vic
>>>
>>>
>>>
>>>
>>>Read this topic online here:
>>>
>>>http://forums.matronics.com/viewtopic.php?p=286453#286453
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>__________ Information from ESET Smart Security, version of virus
>signature database 4866 (20100214) __________
>
>The message was checked by ESET Smart Security.
>
>
Message 25
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I know in my YAK-55 the snot builds up and causes the check valves to
leak .... so the system does not maintain pressure for more than two
weeks and I have to charge the system from a SCUBA tank. I know it's
time to disassemble the tubing and clean things in gasoline when she
loses pressure over a week.
At 05:13 PM 2/14/2010, Eric Wobschall wrote:
>
>Screw up, foul up, gum up. I this case, uncleared air system snot
>(which I think consists of water, oil and glycerine) can sit in the
>body of the shuttle valves thereby getting it stuck. The front-rear
>gear valve is more susceptible, and there is also a main-emergency
>valve. This from memory. Dennis, Doug and their ilk can verify or
>correct.
>
>
>On Feb 14, 2010, at 7:56 PM, Tom Elliott wrote:
>
>>
>>Ok what in the hell is a (bollocks)?
>>Tom Elliott
>>CJ-6A NX63727
>>702-595-2680
>>
>>-----Original Message-----
>>From: owner-yak-list-server@matronics.com
>>[mailto:owner-yak-list-server@matronics.com] On Behalf Of Eric
>>Wobschall
>>Sent: Sunday, February 14, 2010 4:52 PM
>>To: yak-list@matronics.com
>>Subject: Re: Yak-List: Re: Pneumatics
>>
>>
>>There is something called brake line anit-freeze that we use on
>>airport
>>trucks and blowers. I would NOT assume that it's suitable for the
>>air system
>>in a Yak / CJ. Is this really necessary? Winter is almost over.
>>
>>If it's long term and there's a lot of snot in there, there is some
>>danger
>>of bollocksing up shuttle valves.
>>
>>
>>On Feb 14, 2010, at 7:44 PM, Vic wrote:
>>
>>>
>>>Hello,
>>>
>>>truck garages should offer an antifreeze as trucks usually have
>>>pneumatic brakes. So this should be the right stuff that could
>>>possibly include some sort of lubricant for the seals as well.
>>>
>>>Vic
>>>
>>>
>>>
>>>
>>>Read this topic online here:
>>>
>>>http://forums.matronics.com/viewtopic.php?p=286453#286453
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>__________ Information from ESET Smart Security, version of virus
>signature database 4866 (20100214) __________
>
>The message was checked by ESET Smart Security.
>
>
Message 26
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Iwas a member of a British sports car club thatcalled LUCAS the "Prince of Darkness".
It was appropriate .
Terry
Message 27
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| Subject: | F-4 Ejection Barstool | Motoart |
Anybody looking for an addition to their Hangers, office, or home man cave?
Doc
http://www.motoart.com/seating/chairs/f-4-ejection-barstool
Message 28
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| Subject: | Re: Landing Gear Question |
Thanks
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=286494#286494
Message 29
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| Subject: | Re: Fwd: Major accident avoided |
I do not disagree. SA is so important in all aspects of flight and at all
times. Once you expect and accept an intersection takeoff, you should be
very cognizant at what's happening at the end of the runway. Pardon the
pun but a red flag should go up. Busy airport, everyone is in a hurry,
the RJ and Pilatus are rushing ( you can tell that just in the tone and
cadence of their transmissions) however the tower is at fault. If you've
been in a number of busy towers, you know there is a lot of things going
on around a controller that can cause distractions. A career (the contro
ller's) is most likely shot to hell for a good while. And a bunch of paxs
have had the piss scared out of them.
The PAA/SAS accident is a classic in all the things that can go wrong at
an airport. Vick Grubbs and Bob Bragg were good friends whom I flew with
a great deal before and after that day. This incedent has all those mark
ings.
Jim "Pappy" Goolsby
-----Original Message-----
From: Tim Gagnon <NiftyYak50@fuse.net>
Sent: Fri, Feb 12, 2010 6:18 am
Subject: Yak-List: Re: Fwd: Major accident avoided
While it is primarily the controllers fault, the other two aircraft should
have
een paying closer attention as well. Poor situational awareness on the RJ
and
ilatus' part.
ead this topic online here:
http://forums.matronics.com/viewtopic.php?p=286093#286093
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Message 30
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The product originally used by the Russians (sixties/seventies of the former
century) is not available anymore, and its content is unknown. What the
Russians and the Lithuanians advise now, is a 50/50 volume mixture of very
clean glycerine and 96% ethylalcohol, only a few cubic centimeters per
actuator. The Russians started using this mixture in the eighties and they
loved doing this work, because they could order somewhat more ethylalcohol
and use it for their own home-made wodka (at least this has been told to me
by a Russian mechanic).
The Russian and Lithuanian mechanics insert it straight into the actuators,
using an injection needle and at the same time pumping with the gear leg to
suck it in.
Jan RA2005K YK50
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Martin (Home)
Sent: zondag 14 februari 2010 3:01
Subject: Yak-List: Pneumatics
What have most of you been using for lubricating oil?
Martin Mattes
Re: Regarding winterizing I meant charging pneumatic system with alcohol-oil
mix for winter cold proofin
You have to check with Yak 52 maintenance manual first.
I did it but it was long time ago (more then 20 years) and I may be wrong at
some points. Procedure is the same when you are doing regular maintenance
check. First, this should be special lubricant which pneumatic system is
usually charged with (white clear oil, you can fill its smell when you
retract/extend the gear in flight) Second, alcohol 96% Proportion,
volume????(do not remember exact number, 100-150gr/, 50/50 ) Charging:
Discharge air, disconnect Air tank and inject mix in line pipe, connect it
back. (Ones you are doing this drain water condensate from the air tank)
Charge the system with air. Then very important moment: Jack up the plane
,retract and extend gear few times, let this mix spread inside of the
system. That is what I can remember 20 years later.
But it is always better to check with manual.
Vadim
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