Today's Message Index:
----------------------
1. 04:24 AM - 18T rib stiching (Anthony Hudacek)
2. 05:21 AM - Re: 18T rib stiching (Dr Andres Katz)
3. 05:34 AM - Re: 18T rib stiching (Didier BLOUZARD)
4. 09:13 AM - lubricating the air system search (Bill1200)
5. 10:11 AM - Re: lubricating the air system search (doug sapp)
6. 10:42 AM - Re: lubricating the air system search (rick@rvairshows.com)
7. 11:03 AM - Re: lubricating the air system search (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
8. 11:12 AM - Re: lubricating the air system search (Kregg Victory)
9. 11:13 AM - Re: lubricating the air system search (doug sapp)
10. 11:24 AM - Re: lubricating the air system search (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
11. 11:46 AM - Re: lubricating the air system search (Cliff Coy)
12. 12:35 PM - Re: lubricating the air system search (doug sapp)
13. 12:56 PM - Re: lubricating the air system search (Jan Mevis)
14. 03:13 PM - Re: 18T rib stiching (Didier Blouzard)
15. 03:37 PM - Re: 18T rib stiching (Eric Wobschall)
16. 03:51 PM - Re: 18T rib stiching (Didier BLOUZARD)
17. 06:26 PM - Re: lubricating the air system search (Bill1200)
18. 08:37 PM - Re: lubricating the air system search (Roger Kemp M.D.)
Message 1
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| Subject: | 18T rib stiching |
Hi Yak listers,
-
Does anyone know or have a pic on how the wing fabric is stiched onto the w
ing ribs on an 18T?. The tail was simple enough as are the ailerons but the
re are no stiching holes on the wing ribs, except for one or two. Surely no
t enough to hold the fabric on.
-
Thanks, Anthony.=0A=0A=0A
Message 2
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| Subject: | Re: 18T rib stiching |
if it is like all european fabric covered airplanes the stitching is done t
his =0Away=0Ayou cover-each-rib with a narrow strip of -fabric on the
top or bottom surface =0Athat will face the fabric cover, sew the envelope
fabric to the-rib fabric =0A-part, then the fabric on top get sewn to
the fabric over the rib and then you =0Aplace cover tape so there are no st
itches seen i can send some pictures since =0Athis is the way i rebuilt my
bucker jungman=0A=0A=0A=0A=0A________________________________=0AFrom: Antho
ny Hudacek <antdea2000@yahoo.com.au>=0ATo: yak-list@matronics.com=0ASent: F
ri, December 10, 2010 6:16:27 AM=0ASubject: Yak-List: 18T rib stiching=0A
=0A=0AHi Yak listers,=0A-=0ADoes anyone know or have a pic on how the win
g fabric is stiched onto the wing =0Aribs on an 18T?. The tail was simple e
nough as are the ailerons but there are no =0Astiching holes on the wing ri
bs, except for one or two. Surely not enough to =0Ahold the fabric on. =0A
================ =0A
Message 3
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| Subject: | Re: 18T rib stiching |
Will send you pics and possibly film of stitching this evening.
I am afraid the film may be over 20Mo and I am Mott sure to know how to put i
t over the web but I will try.
We so not use the holes on the rib it is dangerous because the wire gets cut
so we go around the rib but there is a specific way of doing the knots and h
iding them.
If you like I can send you a scan of the Polyfiber Method.
Best regards
Didier Blouzard
+33 6 2424 3672
Le 10 d=C3=A9c. 2010 =C3- 13:16, Anthony Hudacek <antdea2000@yahoo.com.au>
a =C3=A9crit :
> Hi Yak listers,
>
> Does anyone know or have a pic on how the wing fabric is stiched onto the w
ing ribs on an 18T?. The tail was simple enough as are the ailerons but ther
e are no stiching holes on the wing ribs, except for one or two. Surely not e
nough to hold the fabric on.
>
> Thanks, Anthony.
>
>
>
>
==========================
=========
==========================
=========
==========================
=========
==========================
=========
Message 4
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| Subject: | lubricating the air system search |
I've tried several searches looking for discussion regarding pros and cons of adding
a lubricant to the air system and get hundreds of topics, but none related
to what I'm looking for. Any suggestions on how to word the search appreciated
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=322843#322843
Message 5
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| Subject: | Re: lubricating the air system search |
Bill,
The CJ Tech Spec manual goes into detail about how much oil to add and where
it should be added. I am not close to my books now or would look it up for
you.
A word of caution. Do not squirt oil into the filter on the compressor, you
are just flushing junk into the compressor and you will end up gumming up
the poppet valve.
Also, do not over do the amount of oil you add to the system. Keeping the
system DRY is of equal or greater importance than keeping it oiled. Check
your manuals and add the recommended amount of oil or oil and glycerin mix.
Many of the actuators which I have been getting in to overhaul or as
exchanges for new units have little or no grease left in them because it has
all been washed out by the addition of light weight oils to the pneumatic
system. Without grease to lubricate the locking balls and the 0 rings the
actuator will self destruct in a very short time.
Best,
Doug
On Fri, Dec 10, 2010 at 9:10 AM, Bill1200 <billdykes52@gmail.com> wrote:
>
> I've tried several searches looking for discussion regarding pros and cons
> of adding a lubricant to the air system and get hundreds of topics, but none
> related to what I'm looking for. Any suggestions on how to word the search
> appreciated
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=322843#322843
>
>
Message 6
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| Subject: | Re: lubricating the air system search |
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DQo
Message 7
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| Subject: | lubricating the air system search |
What I think of that (since you asked) is that you need to be very very careful
of what you add to Russian pneumatic systems.
My first exposure to the YAK List about a decade or so again was when I read about
putting all manner of things into the pneumatic system to prevent rust in
actuators. I did exactly as was suggested. The next thing that happened is that
the Chevron Seals in my YAK-50 landing gear actuators actually dissolved.
By the grace of God I managed to get the gear down with the emergency system.
I then wrote my first long article on how to go about pulling the landing gear
actuators and replacing the seals in a YAK-50.
I did not follow any manuals like Doug Sapp is recommending. Instead I followed
the advice given on the Yak List. In this particular case, that advice turned
out to be less than good. Be careful of what you add to Russian pneumatic
systems. WHAT you add and HOW MUCH you add.
What is "good stuff" for preventing rust, can sometimes be BAD JU-JU for rubber
seals.
Mark Bitterlich
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of rick@rvairshows.com
Sent: Friday, December 10, 2010 13:22
Subject: Re: Yak-List: lubricating the air system search
It has been suggested to clean the air bottle and put some acf50 or similar rust
preventative in. What do you think of that?
Rick VOLKER
Sent from my Verizon Wireless BlackBerry
________________________________
From: doug sapp <dougsappllc@gmail.com>
Sender: owner-yak-list-server@matronics.com
ReplyTo: yak-list@matronics.com
Subject: Re: Yak-List: lubricating the air system search
Bill,
The CJ Tech Spec manual goes into detail about how much oil to ad= d and where
it should be added. -I am not close to my books now or would = look it up for
you.
A word of caution. -Do not s= quirt oil into the filter on the compressor, you
are just flushing junk int= o the compressor and you will end up gumming up the
poppet valve.
Also, do not over do the amount of oil you add to the s= ystem. -Keeping the system
DRY is of equal or greater importance than kee= ping it oiled. -Check your
manuals and add the-recommended-amount of = oil or oil and-glycerin-mix. -
Many of the actuators which I have been-getting-in = to overhaul or as exchanges
for new units have little or no grease left in = them because it has all been
washed out by the addition of light weight oil= s to the pneumatic system. -Without
grease to lubricate the locking balls= and the 0 rings the actuator will
self-destruct in a very short time.
Best,
Doug
= On Fri, Dec 10, 2010 at 9:10 AM, Bill1200 <billdykes52@gmail.com> wrote:
I've tried several searches looking for discussion regarding pros and c= ons of
adding a lubricant to the air system and get hundreds of topics, but= none related
to what I'm looking for. Any suggestions on how to word t= he search appreciated
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=322843#322843<= /a>
==========
="_blank">www.aeroelectric.com
ooks.com" target="_blank">www.buildersbooks.com
et="_blank">www.homebuilthelp.com
="_blank">http://www.matronics.com/contribution
le, List Admin.
==========
rget="_blank">http://www.matronics.com/Navigator?Yak-List
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Irqyizry{nrf
Message 8
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| Subject: | lubricating the air system search |
Good Point Mark, However one advantage of the Yak list is that is can be good
for business.....LOL
Kregg
Victory Aero LLC
2502 John Montgomery Dr.
San Jose, CA 95148
408-836-5122
www.balancemyprop.com
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E
Sent: Friday, December 10, 2010 11:00 AM
Subject: RE: Yak-List: lubricating the air system search
What I think of that (since you asked) is that you need to be very very careful
of what you add to Russian pneumatic systems.
My first exposure to the YAK List about a decade or so again was when I read about
putting all manner of things into the pneumatic system to prevent rust in
actuators. I did exactly as was suggested. The next thing that happened is that
the Chevron Seals in my YAK-50 landing gear actuators actually dissolved.
By the grace of God I managed to get the gear down with the emergency system.
I then wrote my first long article on how to go about pulling the landing gear
actuators and replacing the seals in a YAK-50.
I did not follow any manuals like Doug Sapp is recommending. Instead I followed
the advice given on the Yak List. In this particular case, that advice turned
out to be less than good. Be careful of what you add to Russian pneumatic
systems. WHAT you add and HOW MUCH you add.
What is "good stuff" for preventing rust, can sometimes be BAD JU-JU for rubber
seals.
Mark Bitterlich
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of rick@rvairshows.com
Sent: Friday, December 10, 2010 13:22
Subject: Re: Yak-List: lubricating the air system search
It has been suggested to clean the air bottle and put some acf50 or similar rust
preventative in. What do you think of that?
Rick VOLKER
Sent from my Verizon Wireless BlackBerry
________________________________
From: doug sapp <dougsappllc@gmail.com>
Sender: owner-yak-list-server@matronics.com
ReplyTo: yak-list@matronics.com
Subject: Re: Yak-List: lubricating the air system search
Bill,
The CJ Tech Spec manual goes into detail about how much oil to ad= d and where
it should be added. -I am not close to my books now or would = look it up for
you.
A word of caution. -Do not s= quirt oil into the filter on the compressor, you
are just flushing junk int= o the compressor and you will end up gumming up the
poppet valve.
Also, do not over do the amount of oil you add to the s= ystem. -Keeping the system
DRY is of equal or greater importance than kee= ping it oiled. -Check your
manuals and add the-recommended-amount of = oil or oil and-glycerin-mix. -
Many of the actuators which I have been-getting-in = to overhaul or as exchanges
for new units have little or no grease left in = them because it has all been
washed out by the addition of light weight oil= s to the pneumatic system. -Without
grease to lubricate the locking balls= and the 0 rings the actuator will
self-destruct in a very short time.
Best,
Doug
= On Fri, Dec 10, 2010 at 9:10 AM, Bill1200 <billdykes52@gmail.com> wrote:
I've tried several searches looking for discussion regarding pros and c= ons of
adding a lubricant to the air system and get hundreds of topics, but= none related
to what I'm looking for. Any suggestions on how to word t= he search appreciated
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=322843#322843<= /a>
==========
="_blank">www.aeroelectric.com
ooks.com" target="_blank">www.buildersbooks.com
et="_blank">www.homebuilthelp.com
="_blank">http://www.matronics.com/contribution
le, List Admin.
==========
rget="_blank">http://www.matronics.com/Navigator?Yak-List
==========
http://forums.matronics.com
==========
~,gb'ky'ql/
Irqyizry{nrf
Message 9
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| Subject: | Re: lubricating the air system search |
Rick,
Coating/sloshing (then draining it well) a new bottle with ACF50 should not
be a problem. Dumping a bunch in and leaving it there to migrate through
the air system might cause problems as it just might have a bad effect on
the rubber parts and seals down stream.
Doug
On Fri, Dec 10, 2010 at 10:22 AM, <rick@rvairshows.com> wrote:
> It has been suggested to clean the air bottle and put some acf50 or similar
> rust preventative in. What do you think of that?
> Rick VOLKER
>
> Sent from my Verizon Wireless BlackBerry
> ------------------------------
> *From: * doug sapp <dougsappllc@gmail.com>
> *Sender: * owner-yak-list-server@matronics.com
> *Date: *Fri, 10 Dec 2010 10:08:29 -0800
> *To: *<yak-list@matronics.com>
> *ReplyTo: * yak-list@matronics.com
> *Subject: *Re: Yak-List: lubricating the air system search
>
> Bill,
> The CJ Tech Spec manual goes into detail about how much oil to ad= d and
> where it should be added. -I am not close to my books now or would = look
> it up for you.
>
> A word of caution. -Do not s= quirt oil into the filter on the
> compressor, you are just flushing junk int= o the compressor and you will
> end up gumming up the poppet valve.
>
> Also, do not over do the amount of oil you add to the s= ystem. -Keeping
> the system DRY is of equal or greater importance than kee= ping it oiled.
> -Check your manuals and add the-recommended-amount of = oil or oil
> and-glycerin-mix. -
>
> Many of the actuators which I have been-getting-in = to overhaul or as
> exchanges for new units have little or no grease left in = them because it
> has all been washed out by the addition of light weight oil= s to the
> pneumatic system. -Without grease to lubricate the locking balls= and the
> 0 rings the actuator will self-destruct in a very short time.
>
> Best,
> Doug
>
> = On Fri, Dec 10, 2010 at 9:10 AM, Bill1200 <billdykes52@gmail.com> wrote:
>
>
>
> I've tried several searches looking for discussion regarding pros and c
> ons of adding a lubricant to the air system and get hundreds of topics, but
> none related to what I'm looking for. Any suggestions on how to word t= he
> search appreciated
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=322843#322843<= /a>
>
>
> ==========
> ="_blank">www.aeroelectric.com
> ooks.com" target="_blank">www.buildersbooks.com
> et="_blank">www.homebuilthelp.com
> ="_blank">http://www.matronics.com/contribution
> le, List Admin.
> ==========
> rget="_blank">http://www.matronics.com/Navigator?Yak-List
> ==========
> http://forums.matronics.com
> ==========
>
>
> *
>
>
Message 10
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| Subject: | lubricating the air system search |
TRUE! Never thought of it that way!
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Kregg Victory
Sent: Friday, December 10, 2010 14:09
Subject: RE: Yak-List: lubricating the air system search
Good Point Mark, However one advantage of the Yak list is that is can be good
for business.....LOL
Kregg
Victory Aero LLC
2502 John Montgomery Dr.
San Jose, CA 95148
408-836-5122
www.balancemyprop.com
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E
Sent: Friday, December 10, 2010 11:00 AM
Subject: RE: Yak-List: lubricating the air system search
What I think of that (since you asked) is that you need to be very very careful
of what you add to Russian pneumatic systems.
My first exposure to the YAK List about a decade or so again was when I read about
putting all manner of things into the pneumatic system to prevent rust in
actuators. I did exactly as was suggested. The next thing that happened is that
the Chevron Seals in my YAK-50 landing gear actuators actually dissolved.
By the grace of God I managed to get the gear down with the emergency system.
I then wrote my first long article on how to go about pulling the landing gear
actuators and replacing the seals in a YAK-50.
I did not follow any manuals like Doug Sapp is recommending. Instead I followed
the advice given on the Yak List. In this particular case, that advice turned
out to be less than good. Be careful of what you add to Russian pneumatic
systems. WHAT you add and HOW MUCH you add.
What is "good stuff" for preventing rust, can sometimes be BAD JU-JU for rubber
seals.
Mark Bitterlich
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of rick@rvairshows.com
Sent: Friday, December 10, 2010 13:22
Subject: Re: Yak-List: lubricating the air system search
It has been suggested to clean the air bottle and put some acf50 or similar rust
preventative in. What do you think of that?
Rick VOLKER
Sent from my Verizon Wireless BlackBerry
________________________________
From: doug sapp <dougsappllc@gmail.com>
Sender: owner-yak-list-server@matronics.com
ReplyTo: yak-list@matronics.com
Subject: Re: Yak-List: lubricating the air system search
Bill,
The CJ Tech Spec manual goes into detail about how much oil to ad= d and where
it should be added. -I am not close to my books now or would = look it up for
you.
A word of caution. -Do not s= quirt oil into the filter on the compressor, you
are just flushing junk int= o the compressor and you will end up gumming up the
poppet valve.
Also, do not over do the amount of oil you add to the s= ystem. -Keeping the system
DRY is of equal or greater importance than kee= ping it oiled. -Check your
manuals and add the-recommended-amount of = oil or oil and-glycerin-mix. -
Many of the actuators which I have been-getting-in = to overhaul or as exchanges
for new units have little or no grease left in = them because it has all been
washed out by the addition of light weight oil= s to the pneumatic system. -Without
grease to lubricate the locking balls= and the 0 rings the actuator will
self-destruct in a very short time.
Best,
Doug
= On Fri, Dec 10, 2010 at 9:10 AM, Bill1200 <billdykes52@gmail.com> wrote:
I've tried several searches looking for discussion regarding pros and c= ons of
adding a lubricant to the air system and get hundreds of topics, but= none related
to what I'm looking for. Any suggestions on how to word t= he search appreciated
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=322843#322843<= /a>
==========
="_blank">www.aeroelectric.com
ooks.com" target="_blank">www.buildersbooks.com
et="_blank">www.homebuilthelp.com
="_blank">http://www.matronics.com/contribution
le, List Admin.
==========
rget="_blank">http://www.matronics.com/Navigator?Yak-List
==========
http://forums.matronics.com
==========
~,gb'ky'ql/
Irqyizry{nrf
Message 11
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| Subject: | Re: lubricating the air system search |
*OK....I'll throw my hat into this ring.
The Yakovlev pneumatic system is a *greased* system, not an oiled one.
The assemblies and valves are to be dis-assembled and re-greased every
500hrs or 5 years (whichever occurs first).
There has been many a witches brew suggested to inject into the system- ie.
air tool oil.
This has the effect of washing the grease out of the system.
Washing the grease out of the flap and gear selectors puts the two rotating
plates in direct contact causing scoring and ..... leakage.
The 90% alcohol / Glycerin mix injected into the air bottles is to glom ont
o
the engine oil and water that makes it past the filter to reduce the
incidence of corrosion.
If you're operating in high humidity areas, then I'd change the alcohol/
glycerin mix and regrease the system more often.
Just my $0.02
Cliff
*
On Fri, Dec 10, 2010 at 14:16, Bitterlich, Mark G CIV Det Cherry Point,
MALS-14 64E <mark.bitterlich@navy.mil> wrote:
> MALS-14 64E" <mark.bitterlich@navy.mil>
>
> TRUE! Never thought of it that way!
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com [mailto:
> owner-yak-list-server@matronics.com] On Behalf Of Kregg Victory
> Sent: Friday, December 10, 2010 14:09
> To: yak-list@matronics.com
> Subject: RE: Yak-List: lubricating the air system search
>
>
> Good Point Mark, However one advantage of the Yak list is that is can be
> good for business.....LOL
>
> Kregg
>
> Victory Aero LLC
> 2502 John Montgomery Dr.
> San Jose, CA 95148
> 408-836-5122
> www.balancemyprop.com
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com [mailto:
> owner-yak-list-server@matronics.com] On Behalf Of Bitterlich, Mark G CIV
> Det Cherry Point, MALS-14 64E
> Sent: Friday, December 10, 2010 11:00 AM
> To: yak-list@matronics.com
> Subject: RE: Yak-List: lubricating the air system search
>
> MALS-14 64E" <mark.bitterlich@navy.mil>
>
> What I think of that (since you asked) is that you need to be very very
> careful of what you add to Russian pneumatic systems.
>
> My first exposure to the YAK List about a decade or so again was when I
> read about putting all manner of things into the pneumatic system to prev
ent
> rust in actuators. I did exactly as was suggested. The next thing that
> happened is that the Chevron Seals in my YAK-50 landing gear actuators
> actually dissolved. By the grace of God I managed to get the gear down w
ith
> the emergency system. I then wrote my first long article on how to go ab
out
> pulling the landing gear actuators and replacing the seals in a YAK-50.
>
> I did not follow any manuals like Doug Sapp is recommending. Instead I
> followed the advice given on the Yak List. In this particular case, that
> advice turned out to be less than good. Be careful of what you add to
> Russian pneumatic systems. WHAT you add and HOW MUCH you add.
>
> What is "good stuff" for preventing rust, can sometimes be BAD JU-JU for
> rubber seals.
>
> Mark Bitterlich
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com [mailto:
> owner-yak-list-server@matronics.com] On Behalf Of rick@rvairshows.com
> Sent: Friday, December 10, 2010 13:22
> To: yak-list@matronics.com
> Subject: Re: Yak-List: lubricating the air system search
>
> It has been suggested to clean the air bottle and put some acf50 or simil
ar
> rust preventative in. What do you think of that?
> Rick VOLKER
>
> Sent from my Verizon Wireless BlackBerry
>
> ________________________________
>
> From: doug sapp <dougsappllc@gmail.com>
> Sender: owner-yak-list-server@matronics.com
> Date: Fri, 10 Dec 2010 10:08:29 -0800
> To: <yak-list@matronics.com>
> ReplyTo: yak-list@matronics.com
> Subject: Re: Yak-List: lubricating the air system search
>
> Bill,
> The CJ Tech Spec manual goes into detail about how much oil to ad= d an
d
> where it should be added. -I am not close to my books now or would
= look
> it up for you.
>
> A word of caution. -Do not s= quirt oil into the filter on the
> compressor, you are just flushing junk int= o the compressor and you wi
ll
> end up gumming up the poppet valve.
>
> Also, do not over do the amount of oil you add to the s= ystem. -Ke
eping
> the system DRY is of equal or greater importance than kee= ping it oile
d.
> -Check your manuals and add the-recommended-amount of = oil
or oil
> and-glycerin-mix. -
>
> Many of the actuators which I have been-getting-in = to overhau
l or as
> exchanges for new units have little or no grease left in = them because
it
> has all been washed out by the addition of light weight oil= s to the
> pneumatic system. -Without grease to lubricate the locking balls= a
nd the
> 0 rings the actuator will self-destruct in a very short time.
>
> Best,
> Doug
>
>
> = On Fri, Dec 10, 2010 at 9:10 AM, Bill1200 <billdykes52@gmail.com> wro
te:
>
> .com>
>
> I've tried several searches looking for discussion regarding pros
> and c= ons of adding a lubricant to the air system and get hundreds of
> topics, but= none related to what I'm looking for. Any suggestions on h
ow to
> word t= he search appreciated
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=3D322843#322843<=
/a>
>
>
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> =3D"_blank">www.aeroelectric.com
> ooks.com" target=3D"_blank">www.buildersbooks.com
> et=3D"_blank">www.homebuilthelp.com
> =3D"_blank">http://www.matronics.com/contribution
> le, List Admin.
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> rget=3D"_blank">http://www.matronics.com/Navigator?Yak-List
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> http://forums.matronics.com
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
>
>
> ~, g b'=DE=AEky'ql/=D7=9D
> Irqyizr=C3=AEy=DF=A2{ nr f
>
>
===========
===========
===========
===========
>
>
--
Clifford Coy
Border Air Ltd.
629 Airport Rd.
Swanton, VT 05488
802-868-2822 TEL
802-868-4465 FAX
Skype: Cliff.Coy
Message 12
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|
| Subject: | Re: lubricating the air system search |
Cliff is spot on, glycerin is a humectant (attracts water) and so
is alcohol. I have posted about this in the past. I have used glycerin
mixed 30% with alcohol (70%) in the past and it seems to work well.
Doug
On Fri, Dec 10, 2010 at 11:43 AM, Cliff Coy <cliff.coy@gmail.com> wrote:
> *OK....I'll throw my hat into this ring.
>
> The Yakovlev pneumatic system is a *greased* system, not an oiled one.
>
> The assemblies and valves are to be dis-assembled and re-greased every
> 500hrs or 5 years (whichever occurs first).
>
> There has been many a witches brew suggested to inject into the system- i
e.
> air tool oil.
>
> This has the effect of washing the grease out of the system.
>
> Washing the grease out of the flap and gear selectors puts the two rotati
ng
> plates in direct contact causing scoring and ..... leakage.
>
> The 90% alcohol / Glycerin mix injected into the air bottles is to glom
> onto the engine oil and water that makes it past the filter to reduce the
> incidence of corrosion.
>
> If you're operating in high humidity areas, then I'd change the alcohol/
> glycerin mix and regrease the system more often.
>
> Just my $0.02
>
> Cliff
> *
> On Fri, Dec 10, 2010 at 14:16, Bitterlich, Mark G CIV Det Cherry Point,
> MALS-14 64E <mark.bitterlich@navy.mil> wrote:
>
,
>> MALS-14 64E" <mark.bitterlich@navy.mil>
>>
>> TRUE! Never thought of it that way!
>>
>>
>> -----Original Message-----
>> From: owner-yak-list-server@matronics.com [mailto:
>> owner-yak-list-server@matronics.com] On Behalf Of Kregg Victory
>> Sent: Friday, December 10, 2010 14:09
>> To: yak-list@matronics.com
>> Subject: RE: Yak-List: lubricating the air system search
>>
>
>>
>> Good Point Mark, However one advantage of the Yak list is that is can b
e
>> good for business.....LOL
>>
>> Kregg
>>
>> Victory Aero LLC
>> 2502 John Montgomery Dr.
>> San Jose, CA 95148
>> 408-836-5122
>> www.balancemyprop.com
>>
>> -----Original Message-----
>> From: owner-yak-list-server@matronics.com [mailto:
>> owner-yak-list-server@matronics.com] On Behalf Of Bitterlich, Mark G CIV
>> Det Cherry Point, MALS-14 64E
>> Sent: Friday, December 10, 2010 11:00 AM
>> To: yak-list@matronics.com
>> Subject: RE: Yak-List: lubricating the air system search
>>
,
>> MALS-14 64E" <mark.bitterlich@navy.mil>
>>
>> What I think of that (since you asked) is that you need to be very very
>> careful of what you add to Russian pneumatic systems.
>>
>> My first exposure to the YAK List about a decade or so again was when I
>> read about putting all manner of things into the pneumatic system to pre
vent
>> rust in actuators. I did exactly as was suggested. The next thing that
>> happened is that the Chevron Seals in my YAK-50 landing gear actuators
>> actually dissolved. By the grace of God I managed to get the gear down
with
>> the emergency system. I then wrote my first long article on how to go a
bout
>> pulling the landing gear actuators and replacing the seals in a YAK-50.
>>
>> I did not follow any manuals like Doug Sapp is recommending. Instead I
>> followed the advice given on the Yak List. In this particular case, tha
t
>> advice turned out to be less than good. Be careful of what you add to
>> Russian pneumatic systems. WHAT you add and HOW MUCH you add.
>>
>> What is "good stuff" for preventing rust, can sometimes be BAD JU-JU for
>> rubber seals.
>>
>> Mark Bitterlich
>>
>>
>>
>>
>> -----Original Message-----
>> From: owner-yak-list-server@matronics.com [mailto:
>> owner-yak-list-server@matronics.com] On Behalf Of rick@rvairshows.com
>> Sent: Friday, December 10, 2010 13:22
>> To: yak-list@matronics.com
>> Subject: Re: Yak-List: lubricating the air system search
>>
>> It has been suggested to clean the air bottle and put some acf50 or
>> similar rust preventative in. What do you think of that?
>> Rick VOLKER
>>
>> Sent from my Verizon Wireless BlackBerry
>>
>> ________________________________
>>
>> From: doug sapp <dougsappllc@gmail.com>
>> Sender: owner-yak-list-server@matronics.com
>> Date: Fri, 10 Dec 2010 10:08:29 -0800
>> To: <yak-list@matronics.com>
>> ReplyTo: yak-list@matronics.com
>> Subject: Re: Yak-List: lubricating the air system search
>>
>> Bill,
>> The CJ Tech Spec manual goes into detail about how much oil to ad= d a
nd
>> where it should be added. -I am not close to my books now or would
= look
>> it up for you.
>>
>> A word of caution. -Do not s= quirt oil into the filter on the
>> compressor, you are just flushing junk int= o the compressor and you w
ill
>> end up gumming up the poppet valve.
>>
>> Also, do not over do the amount of oil you add to the s= ystem. -K
eeping
>> the system DRY is of equal or greater importance than kee= ping it oil
ed.
>> -Check your manuals and add the-recommended-amount of = oi
l or oil
>> and-glycerin-mix. -
>>
>> Many of the actuators which I have been-getting-in = to overha
ul or as
>> exchanges for new units have little or no grease left in = them becaus
e it
>> has all been washed out by the addition of light weight oil= s to the
>> pneumatic system. -Without grease to lubricate the locking balls=
and the
>> 0 rings the actuator will self-destruct in a very short time.
>>
>> Best,
>> Doug
>>
>>
>> = On Fri, Dec 10, 2010 at 9:10 AM, Bill1200 <billdykes52@gmail.com>
>> wrote:
>>
>> .com>
>>
>> I've tried several searches looking for discussion regarding pros
>> and c= ons of adding a lubricant to the air system and get hundreds of
>> topics, but= none related to what I'm looking for. Any suggestions on
how to
>> word t= he search appreciated
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=3D322843#322843<=
/a>
>>
>>
>>
>>
>>
>>
>>
>> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
>> =3D"_blank">www.aeroelectric.com
>> ooks.com" target=3D"_blank">www.buildersbooks.com
>> et=3D"_blank">www.homebuilthelp.com
>> =3D"_blank">http://www.matronics.com/contribution
>> le, List Admin.
>> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
>> rget=3D"_blank">http://www.matronics.com/Navigator?Yak-List
>> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
>> http://forums.matronics.com
>> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> ~, g b'=DE=AEky'ql/=D7=9D
>> Irqyizr=C3=AEy=DF=A2{ nr f
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> ==========
>> e Support Your Lists This Month --
>>
>> target="_blank">www.aeroelectric.com
>> ldersbooks.com" target="_blank">www.buildersbooks.com
>> " target="_blank">www.homebuilthelp.com
>> t="_blank">http://www.matronics.com/contribution
>> -Matt Dralle, List Admin.
>> ==========
>> target="_blank">http://www.matronics.com/Navigator?Yak-List
>> ==========
>> MS -
>> k">http://forums.matronics.com
>> ==========
>>
>>
>>
>>
>
>
> --
> Clifford Coy
> Border Air Ltd.
> 629 Airport Rd.
> Swanton, VT 05488
> 802-868-2822 TEL
> 802-868-4465 FAX
> Skype: Cliff.Coy
>
> *
>
===========
===========
===========
============*
>
>
Message 13
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|
| Subject: | lubricating the air system search |
Here in the humid Western part of Europe, we do as instructed by our
Russian inspectors: inject a 50/50 volume mixture of pure glycerine and
90% ethanol with a needle right into the actuators. Only a few cc. Not
too much!
And of course Cliff is right about the overhaul every 500 hours or 5
years.
Jan
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Cliff Coy
Sent: vrijdag 10 december 2010 8:44
Subject: Re: Yak-List: lubricating the air system search
OK....I'll throw my hat into this ring.
The Yakovlev pneumatic system is a *greased* system, not an oiled one.
The assemblies and valves are to be dis-assembled and re-greased every
500hrs or 5 years (whichever occurs first).
There has been many a witches brew suggested to inject into the system-
ie. air tool oil.
This has the effect of washing the grease out of the system.
Washing the grease out of the flap and gear selectors puts the two
rotating plates in direct contact causing scoring and ..... leakage.
The 90% alcohol / Glycerin mix injected into the air bottles is to glom
onto the engine oil and water that makes it past the filter to reduce
the incidence of corrosion.
If you're operating in high humidity areas, then I'd change the alcohol/
glycerin mix and regrease the system more often.
Just my $0.02
Cliff
On Fri, Dec 10, 2010 at 14:16, Bitterlich, Mark G CIV Det Cherry Point,
MALS-14 64E <mark.bitterlich@navy.mil> wrote:
Point, MALS-14 64E" <mark.bitterlich@navy.mil>
TRUE! Never thought of it that way!
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Kregg Victory
Sent: Friday, December 10, 2010 14:09
Subject: RE: Yak-List: lubricating the air system search
<kregg@balancemyprop.com>
Good Point Mark, However one advantage of the Yak list is that is can
be good for business.....LOL
Kregg
Victory Aero LLC
2502 John Montgomery Dr.
San Jose, CA 95148
408-836-5122
www.balancemyprop.com
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich,
Mark G CIV Det Cherry Point, MALS-14 64E
Sent: Friday, December 10, 2010 11:00 AM
Subject: RE: Yak-List: lubricating the air system search
Point, MALS-14 64E" <mark.bitterlich@navy.mil>
What I think of that (since you asked) is that you need to be very very
careful of what you add to Russian pneumatic systems.
My first exposure to the YAK List about a decade or so again was when I
read about putting all manner of things into the pneumatic system to
prevent rust in actuators. I did exactly as was suggested. The next
thing that happened is that the Chevron Seals in my YAK-50 landing gear
actuators actually dissolved. By the grace of God I managed to get the
gear down with the emergency system. I then wrote my first long article
on how to go about pulling the landing gear actuators and replacing the
seals in a YAK-50.
I did not follow any manuals like Doug Sapp is recommending. Instead I
followed the advice given on the Yak List. In this particular case,
that advice turned out to be less than good. Be careful of what you
add to Russian pneumatic systems. WHAT you add and HOW MUCH you add.
What is "good stuff" for preventing rust, can sometimes be BAD JU-JU for
rubber seals.
Mark Bitterlich
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of
rick@rvairshows.com
Sent: Friday, December 10, 2010 13:22
Subject: Re: Yak-List: lubricating the air system search
It has been suggested to clean the air bottle and put some acf50 or
similar rust preventative in. What do you think of that?
Rick VOLKER
Sent from my Verizon Wireless BlackBerry
________________________________
From: doug sapp <dougsappllc@gmail.com>
Sender: owner-yak-list-server@matronics.com
ReplyTo: yak-list@matronics.com
Subject: Re: Yak-List: lubricating the air system search
Bill,
The CJ Tech Spec manual goes into detail about how much oil to ad= d
and where it should be added. -I am not close to my books now or
would = look it up for you.
A word of caution. -Do not s= quirt oil into the filter on the
compressor, you are just flushing junk int= o the compressor and you
will end up gumming up the poppet valve.
Also, do not over do the amount of oil you add to the s= ystem.
-Keeping the system DRY is of equal or greater importance than
kee= ping it oiled. -Check your manuals and add
the-recommended-amount of = oil or oil
and-glycerin-mix. -
Many of the actuators which I have been-getting-in = to
overhaul or as exchanges for new units have little or no grease left in
= them because it has all been washed out by the addition of light
weight oil= s to the pneumatic system. -Without grease to
lubricate the locking balls= and the 0 rings the actuator will
self-destruct in a very short time.
Best,
Doug
= On Fri, Dec 10, 2010 at 9:10 AM, Bill1200 <billdykes52@gmail.com>
wrote:
<billdykes52@gmail= .com>
I've tried several searches looking for discussion regarding pros
and c= ons of adding a lubricant to the air system and get hundreds of
topics, but= none related to what I'm looking for. Any suggestions on
how to word t= he search appreciated
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=3D322843#322843<=
/a>
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
=3D"_blank">www.aeroelectric.com
ooks.com" target=3D"_blank">www.buildersbooks.com
et=3D"_blank">www.homebuilthelp.com
=3D"_blank">http://www.matronics.com/contribution
le, List Admin.
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
rget=3D"_blank">http://www.matronics.com/Navigator?Yak-List
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
http://forums.matronics.com
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
~, g b'=DE=AEky'ql/=D7=9D
Irqyizr=C3=AEy=DF=A2{ nr f
e Support Your Lists This Month --
target="_blank">www.aeroelectric.com
ldersbooks.com" target="_blank">www.buildersbooks.com
" target="_blank">www.homebuilthelp.com
t="_blank">http://www.matronics.com/contribution
-Matt Dralle, List Admin.
target="_blank">http://www.matronics.com/Navigator?Yak-List
MS -
k">http://forums.matronics.com
--
Clifford Coy
Border Air Ltd.
629 Airport Rd.
Swanton, VT 05488
802-868-2822 TEL
802-868-4465 FAX
Skype: Cliff.Coy
Message 14
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|
| Subject: | Re: 18T rib stiching |
Here are a few linkks to PicasaWeb albums.
Tell me if this is enough or you need the scans of the doc...
*http://picasaweb.google.com/didier.blouzard/PhotosNadia?feat=directlink*
http://picasaweb.google.com/lh/photo/_IJ_OyihxBfUyGuD4uymGA?feat=directli
nk
http://picasaweb.google.com/didier.blouzard/YakEmpennage?feat=directlink
Didier
2010/12/10 Didier BLOUZARD <didier.blouzard@gmail.com>
> Will send you pics and possibly film of stitching this evening.
> I am afraid the film may be over 20Mo and I am Mott sure to know how to p
ut
> it over the web but I will try.
> We so not use the holes on the rib it is dangerous because the wire gets
> cut so we go around the rib but there is a specific way of doing the knot
s
> and hiding them.
> If you like I can send you a scan of the Polyfiber Method.
>
> Best regards
>
> Didier Blouzard
> +33 6 2424 3672
>
> Le 10 d=E9c. 2010 =E0 13:16, Anthony Hudacek <antdea2000@yahoo.com.au> a
> =E9crit :
>
> Hi Yak listers,
>
> Does anyone know or have a pic on how the wing fabric is stiched onto the
> wing ribs on an 18T?. The tail was simple enough as are the ailerons but
> there are no stiching holes on the wing ribs, except for one or two. Sure
ly
> not enough to hold the fabric on.
>
> Thanks, Anthony.
>
>
> *
>
===========
om
ildersbooks.com
p.com
com/contribution
===========
onics.com/Navigator?Yak-List
===========
============*
>
>
--
Didier BLOUZARD
didier.blouzard@gmail.com
0624243672
Message 15
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| Subject: | Re: 18T rib stiching |
Man... that looks like an expert at work.
On Dec 10, 2010, at 6:10 PM, Didier Blouzard wrote:
> Here are a few linkks to PicasaWeb albums.
> Tell me if this is enough or you need the scans of the doc...
>
>
> http://picasaweb.google.com/didier.blouzard/PhotosNadia?
> feat=directlink
>
>
http://picasaweb.google.com/lh/photo/_IJ_OyihxBfUyGuD4uymGA?feat=directl
ink
>
>
http://picasaweb.google.com/didier.blouzard/YakEmpennage?feat=directlink
>
>
> Didier
>
>
> 2010/12/10 Didier BLOUZARD <didier.blouzard@gmail.com>
> Will send you pics and possibly film of stitching this evening.
> I am afraid the film may be over 20Mo and I am Mott sure to know how
> to put it over the web but I will try.
> We so not use the holes on the rib it is dangerous because the wire
> gets cut so we go around the rib but there is a specific way of
> doing the knots and hiding them.
> If you like I can send you a scan of the Polyfiber Method.
>
> Best regards
>
> Didier Blouzard
> +33 6 2424 3672
>
> Le 10 d=E9c. 2010 =E0 13:16, Anthony Hudacek <antdea2000@yahoo.com.au>
a
> =E9crit :
>
>> Hi Yak listers,
>>
>> Does anyone know or have a pic on how the wing fabric is stiched
>> onto the wing ribs on an 18T?. The tail was simple enough as are
>> the ailerons but there are no stiching holes on the wing ribs,
>> except for one or two. Surely not enough to hold the fabric on.
>>
>> Thanks, Anthony.
>>
>>
>>
>>
>> _blank">www.aeroelectric.com
>> .com" target="_blank">www.buildersbooks.com
>> ="_blank">www.homebuilthelp.com
>> _blank">http://www.matronics.com/contribution
>> et="_blank">http://www.matronics.com/Navigator?Yak-List
>> a>http://forums.matronics.com
>
>
> --
> Didier BLOUZARD
> didier.blouzard@gmail.com
> 0624243672
>
>
Message 16
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| Subject: | Re: 18T rib stiching |
Yes she is indeed!!!
Didier Blouzard
+33 6 2424 3672
Le 11 d=C3=A9c. 2010 =C3- 00:22, Eric Wobschall <eric@buffaloskyline.com> a
=C3=A9crit :
> Man... that looks like an expert at work.
>
>
> On Dec 10, 2010, at 6:10 PM, Didier Blouzard wrote:
>
>> Here are a few linkks to PicasaWeb albums.
>> Tell me if this is enough or you need the scans of the doc...
>>
>>
>> http://picasaweb.google.com/didier.blouzard/PhotosNadia?feat=directlink
>>
>> http://picasaweb.google.com/lh/photo/_IJ_OyihxBfUyGuD4uymGA?feat=direct
link
>>
>> http://picasaweb.google.com/didier.blouzard/YakEmpennage?feat=directlin
k
>>
>>
>> Didier
>>
>>
>>
>>
>>
>>
>>
>> 2010/12/10 Didier BLOUZARD <didier.blouzard@gmail.com>
>> Will send you pics and possibly film of stitching this evening.
>> I am afraid the film may be over 20Mo and I am Mott sure to know how to p
ut it over the web but I will try.
>> We so not use the holes on the rib it is dangerous because the wire gets c
ut so we go around the rib but there is a specific way of doing the knots an
d hiding them.
>> If you like I can send you a scan of the Polyfiber Method.
>>
>> Best regards
>>
>> Didier Blouzard
>> +33 6 2424 3672
>>
>> Le 10 d=C3=A9c. 2010 =C3- 13:16, Anthony Hudacek <antdea2000@yahoo.com.
au> a =C3=A9crit :
>>
>>> Hi Yak listers,
>>>
>>> Does anyone know or have a pic on how the wing fabric is stiched onto th
e wing ribs on an 18T?. The tail was simple enough as are the ailerons but t
here are no stiching holes on the wing ribs, except for one or two. Surely n
ot enough to hold the fabric on.
>>>
>>> Thanks, Anthony.
>>>
>>>
>>>
>>>
>>> _blank">www.aeroelectric.com
>>> .com" target="_blank">www.buildersbooks.com
>>> ="_blank">www.homebuilthelp.com
>>> _blank">http://www.matronics.com/contribution
>>> et="_blank">http://www.matronics.com/Navigator?Yak-List
>>> a>http://forums.matronics.com
>>
>>
>>
>> --
>> Didier BLOUZARD
>> didier.blouzard@gmail.com
>> 0624243672
>>
>>
>> href="http://www.aeroelectric.com">www.aeroelectric.com
>> href="http://www.buildersbooks.com">www.buildersbooks.com
>> href="http://www.homebuilthelp.com">www.homebuilthelp.com
>> href="http://www.matronics.com/contribution">http://www.matronics.com/c
ontribution
>> href="http://www.matronics.com/Navigator?Yak-List">http://www.matronics
.com/Navigator?Yak-List
>> href="http://forums.matronics.com">http://forums.matronics.com
>
>
>
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Message 17
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| Subject: | Re: lubricating the air system search |
Thanks to all, once again!
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=322894#322894
Message 18
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| Subject: | lubricating the air system search |
I have used your 30/70% formula in the air bottles for 4 years now.
Seems to work well. Approaching time now to pull the actuators and
grease them. What weight grease are ya=99ll using on the seals?
Doc
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of doug sapp
Sent: Friday, December 10, 2010 2:30 PM
Subject: Re: Yak-List: lubricating the air system search
Cliff is spot on, glycerin is a humectant (attracts water) and so is
alcohol. I have posted about this in the past. I have used glycerin
mixed 30% with alcohol (70%) in the past and it seems to work well.
Doug
On Fri, Dec 10, 2010 at 11:43 AM, Cliff Coy <cliff.coy@gmail.com> wrote:
OK....I'll throw my hat into this ring.
The Yakovlev pneumatic system is a *greased* system, not an oiled one.
The assemblies and valves are to be dis-assembled and re-greased every
500hrs or 5 years (whichever occurs first).
There has been many a witches brew suggested to inject into the system-
ie. air tool oil.
This has the effect of washing the grease out of the system.
Washing the grease out of the flap and gear selectors puts the two
rotating plates in direct contact causing scoring and ..... leakage.
The 90% alcohol / Glycerin mix injected into the air bottles is to glom
onto the engine oil and water that makes it past the filter to reduce
the incidence of corrosion.
If you're operating in high humidity areas, then I'd change the alcohol/
glycerin mix and regrease the system more often.
Just my $0.02
Cliff
On Fri, Dec 10, 2010 at 14:16, Bitterlich, Mark G CIV Det Cherry Point,
MALS-14 64E <mark.bitterlich@navy.mil> wrote:
Point, MALS-14 64E" <mark.bitterlich@navy.mil>
TRUE! Never thought of it that way!
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Kregg Victory
Sent: Friday, December 10, 2010 14:09
Subject: RE: Yak-List: lubricating the air system search
<kregg@balancemyprop.com>
Good Point Mark, However one advantage of the Yak list is that is can
be good for business.....LOL
Kregg
Victory Aero LLC
2502 John Montgomery Dr.
San Jose, CA 95148
408-836-5122
www.balancemyprop.com
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich,
Mark G CIV Det Cherry Point, MALS-14 64E
Sent: Friday, December 10, 2010 11:00 AM
Subject: RE: Yak-List: lubricating the air system search
Point, MALS-14 64E" <mark.bitterlich@navy.mil>
What I think of that (since you asked) is that you need to be very very
careful of what you add to Russian pneumatic systems.
My first exposure to the YAK List about a decade or so again was when I
read about putting all manner of things into the pneumatic system to
prevent rust in actuators. I did exactly as was suggested. The next
thing that happened is that the Chevron Seals in my YAK-50 landing gear
actuators actually dissolved. By the grace of God I managed to get the
gear down with the emergency system. I then wrote my first long article
on how to go about pulling the landing gear actuators and replacing the
seals in a YAK-50.
I did not follow any manuals like Doug Sapp is recommending. Instead I
followed the advice given on the Yak List. In this particular case,
that advice turned out to be less than good. Be careful of what you
add to Russian pneumatic systems. WHAT you add and HOW MUCH you add.
What is "good stuff" for preventing rust, can sometimes be BAD JU-JU for
rubber seals.
Mark Bitterlich
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of
rick@rvairshows.com
Sent: Friday, December 10, 2010 13:22
Subject: Re: Yak-List: lubricating the air system search
It has been suggested to clean the air bottle and put some acf50 or
similar rust preventative in. What do you think of that?
Rick VOLKER
Sent from my Verizon Wireless BlackBerry
________________________________
From: doug sapp <dougsappllc@gmail.com>
Sender: owner-yak-list-server@matronics.com
ReplyTo: yak-list@matronics.com
Subject: Re: Yak-List: lubricating the air system search
Bill,
The CJ Tech Spec manual goes into detail about how much oil to ad= d
and where it should be added. -I am not close to my books now or
would = look it up for you.
A word of caution. -Do not s= quirt oil into the filter on the
compressor, you are just flushing junk int= o the compressor and you
will end up gumming up the poppet valve.
Also, do not over do the amount of oil you add to the s= ystem.
-Keeping the system DRY is of equal or greater importance than
kee= ping it oiled. -Check your manuals and add
the-recommended-amount of = oil or oil
and-glycerin-mix. -
Many of the actuators which I have been-getting-in = to
overhaul or as exchanges for new units have little or no grease left in
= them because it has all been washed out by the addition of light
weight oil= s to the pneumatic system. -Without grease to
lubricate the locking balls= and the 0 rings the actuator will
self-destruct in a very short time.
Best,
Doug
= On Fri, Dec 10, 2010 at 9:10 AM, Bill1200 <billdykes52@gmail.com>
wrote:
<billdykes52@gmail= .com <mailto:billdykes52@gmail=%20.com> >
I've tried several searches looking for discussion regarding pros
and c= ons of adding a lubricant to the air system and get hundreds of
topics, but= none related to what I'm looking for. Any suggestions on
how to word t= he search appreciated
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=3D322843#322843<=
/a>
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ooks.com" target=3D"_blank">www.buildersbooks.com
et=3D"_blank">www.homebuilthelp.com
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le, List Admin.
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Irqyizr=C3=AEy=DF=A2{ nr f
e Support Your Lists This Month --
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Border Air Ltd.
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802-868-2822 TEL
802-868-4465 FAX
Skype: Cliff.Coy
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