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Nose wheel problems

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hawkins(at)cms.udel.edu
Guest

Posted: Mon Oct 30, 2006 9:18 am Post subject: Nose wheel problems

Hey all-



Well, no luck in selling N2760B here in Delaware - so thinking I'll just

start flying her.  Have a couple of well qualified pilots with the

Commander here at Georgetown.



Ran into a problem this weekend though.  Know the nose wheel steering is

"tricky" - but we're having a problem with it turning hard left and not

being able to get it centered again.  Even with full right rudder and

full throttle on the left engine.



When you shut down, you can go out and turn it to center by hand - very

little (if any) pressure on the ram.



Checked for air in cylinder - nothing.



Looking at the hydraulic drawing - could the nose wheel steering by-pass

valve be bad? Such that fluid just passes through valve rather than to

the ram?



Funny that it only goes hard left - never hard right?  At least not yet!



Hydraulic pressure is running a bit high (1200 psi - just shy of the

relief) and we need to adjust down to be 900 - 1100 as I understand.

Only hydraulic pump on the left engine.



No problem with flap or gear - just "quick" because of the slightly high

pressure.



At about 1000 RPM we can hear a bit of hydraulic "chatter" down between

the seats where the hand pump selector valve and relief valve are.  It

goes away at around 1500 RPM.



Just trying to give you all the symptoms in case there's a connection.

All hydraulic related, but hard left on the nose wheel is the real

problem right now.



Could it be "operator error" - something we're doing wrong in handling

her on the ground?  Our pilot with lots of time in the Commander has

never had the severe "hard left" problem in his bird - though very

familiar with the tricky steering.



All suggestions appreciated.



Thanks,

Matt



********************

Matthew Hawkins

Director, Marine Ops

R/V HUGH R. SHARP

302-645-4341

FAX: 302-645-4006

hawkins(at)udel.edu

brcamp(at)windows.microso
Guest

Posted: Mon Oct 30, 2006 9:57 am Post subject: Nose wheel problems

Sounds to me more like a worn bolt/bushing.  They are *very* critical.



         Bruce 



          N4186B



--

brcamp(at)windows.microso
Guest

Posted: Mon Oct 30, 2006 10:19 am Post subject: Nose wheel problems

One other thought. Might want to check the main gear for play.  



        Bruce Campbell

          N4186B AC52

--

Skyhawkc-172

Joined: 10 Jan 2006
Posts: 84

Posted: Mon Oct 30, 2006 11:46 am Post subject: Nose wheel problems

what would main gear play mean or what affect would this cause ?  we have had the same problem steering hard one way or the other, but I know what its from...40mph crosswinds while taxxing  : )

  

 [quote]-------------- Original message -------------- 

From: Bruce Campbell <brcamp(at)windows.microsoft.com> 



[quote] --> Commander-List message posted by: Bruce Campbell 

 

 

 One other thought. Might want to check the main gear for play. 

 

 Bruce Campbell 

 N4186B AC52 

 

 

 --

YOURTCFG(at)aol.com
Guest

Posted: Mon Oct 30, 2006 6:08 pm Post subject: Nose wheel problems

In a message dated 10/30/2006 9:19:34 A.M. Pacific Standard Time,  hawkins(at)cms.udel.edu writes:

  	  Quote: 	
		       Even with full right rudder and

full throttle on the left  engine.

	


 

 I am sure this is a typo, because you know the rudder will not steer the  airplane.  It may be that the shimmy dampener is dirty.  Take some  brake cleaner (found in aerosol cans at places like NAPA) and hose down the  shimmy dampener.  Next check the rigging on the shimmy damper (as per  the manual).  If the steering is working one direction, it is not the  steering cut out valve.  Do the brakes work normally??  You can check  for pressure at the cylinder by building pressure in the system, then  depress the pedal to steer and crack the appropriate line to the steering  cylinder.  If there is no pressure there, work backward until you  get pressure.  The chattering is probably low pressure in the  accumulator. or a faulty unloading valve, it is mounted blow the floor next  to the hand pump.  jb  

  [quote][b]

amg3636(at)hotmail.com
Guest

Posted: Mon Oct 30, 2006 6:31 pm Post subject: Nose wheel problems

This is a test.  I posted a reply several hours ago have not seen it yet.



Roland

 	  Quote: 	
		  From: "Matthew J. Hawkins" <hawkins(at)cms.udel.edu>

Reply-To: commander-list(at)matronics.com

To: commander-list(at)matronics.com

Subject: Nose wheel problems

Date: Mon, 30 Oct 2006 12:17:32 -0500




<hawkins(at)cms.udel.edu>



Hey all-



Well, no luck in selling N2760B here in Delaware - so thinking I'll just

start flying her.  Have a couple of well qualified pilots with the

Commander here at Georgetown.



Ran into a problem this weekend though.  Know the nose wheel steering is

"tricky" - but we're having a problem with it turning hard left and not

being able to get it centered again.  Even with full right rudder and

full throttle on the left engine.



When you shut down, you can go out and turn it to center by hand - very

little (if any) pressure on the ram.



Checked for air in cylinder - nothing.



Looking at the hydraulic drawing - could the nose wheel steering by-pass

valve be bad? Such that fluid just passes through valve rather than to

the ram?



Funny that it only goes hard left - never hard right?  At least not yet!



Hydraulic pressure is running a bit high (1200 psi - just shy of the

relief) and we need to adjust down to be 900 - 1100 as I understand.

Only hydraulic pump on the left engine.



No problem with flap or gear - just "quick" because of the slightly high

pressure.



At about 1000 RPM we can hear a bit of hydraulic "chatter" down between

the seats where the hand pump selector valve and relief valve are.  It

goes away at around 1500 RPM.



Just trying to give you all the symptoms in case there's a connection.

All hydraulic related, but hard left on the nose wheel is the real

problem right now.



Could it be "operator error" - something we're doing wrong in handling

her on the ground?  Our pilot with lots of time in the Commander has

never had the severe "hard left" problem in his bird - though very

familiar with the tricky steering.



All suggestions appreciated.



Thanks,

Matt



********************

Matthew Hawkins

Director, Marine Ops

R/V HUGH R. SHARP

302-645-4341

FAX: 302-645-4006

hawkins(at)udel.edu






	


_________________________________________________________________

Live Search!

Matt Dralle
Site Admin

Joined: 08 Nov 2005
Posts: 26321
Location: Livermore CA USA

Posted: Mon Oct 30, 2006 6:39 pm Post subject: Nose wheel problems

Roland,



Doesn't look like it even made it to the Matronics Email Server.  Your "test" message is the only message I'm finding in the logs.



Best regards,



Matt Dralle

Matronics Email List Admin



At 06:29 PM 10/30/2006  Monday, you wrote:

 	  Quote: 	
		  



This is a test.  I posted a reply several hours ago have not seen it yet.



Roland

>From: "Matthew J. Hawkins" <hawkins(at)cms.udel.edu>

>Reply-To: commander-list(at)matronics.com

>To: commander-list(at)matronics.com

>Subject: Nose wheel problems

>Date: Mon, 30 Oct 2006 12:17:32 -0500

>

>

>

>Hey all-

>

>Well, no luck in selling N2760B here in Delaware - so thinking I'll just

>start flying her.  Have a couple of well qualified pilots with the

>Commander here at Georgetown.

>

>Ran into a problem this weekend though.  Know the nose wheel steering is

>"tricky" - but we're having a problem with it turning hard left and not

>being able to get it centered again.  Even with full right rudder and

>full throttle on the left engine.

>

>When you shut down, you can go out and turn it to center by hand - very

>little (if any) pressure on the ram.

>

>Checked for air in cylinder - nothing.

>

>Looking at the hydraulic drawing - could the nose wheel steering by-pass

>valve be bad? Such that fluid just passes through valve rather than to

>the ram?

>

>Funny that it only goes hard left - never hard right?  At least not yet!

>

>Hydraulic pressure is running a bit high (1200 psi - just shy of the

>relief) and we need to adjust down to be 900 - 1100 as I understand.

>Only hydraulic pump on the left engine.

>

>No problem with flap or gear - just "quick" because of the slightly high

>pressure.

>

>At about 1000 RPM we can hear a bit of hydraulic "chatter" down between

>the seats where the hand pump selector valve and relief valve are.  It

>goes away at around 1500 RPM.

>

>Just trying to give you all the symptoms in case there's a connection.

>All hydraulic related, but hard left on the nose wheel is the real

>problem right now.

>

>Could it be "operator error" - something we're doing wrong in handling

>her on the ground?  Our pilot with lots of time in the Commander has

>never had the severe "hard left" problem in his bird - though very

>familiar with the tricky steering.

>

>All suggestions appreciated.

>

>Thanks,

>Matt

>

>********************

>Matthew Hawkins

>Director, Marine Ops

>R/V HUGH R. SHARP

>302-645-4341

>FAX: 302-645-4006

>hawkins(at)udel.edu

>



_________________________________________________________________

Live Search! 




	


Matt G Dralle | Matronics | PO Box 347 | Livermore | CA | 94551

925-606-1001 V | 925-606-6281 F | dralle(at)matronics.com Email

http://www.matronics.com/ WWW | Featuring Products For Aircraft

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Matt Dralle
Matronics Email List Administrator

Jim Addington

Joined: 09 Jan 2006
Posts: 62
Location: Denton, Texas

Posted: Mon Oct 30, 2006 7:33 pm Post subject: Nose wheel problems

Matt,

I don't know if the system is any where near the same as my 500A, but, I had 

a problem one time where I had put the gear handle down and had three green 

but when we landed and put in right rudder and brake the plane went left. 

What I found was the handle was down and the gear was down with green lights 

but the handle was not locked down. What I think happened was the ports were 

not lined up properly and the right side brake and steering was putting 

pressure in the left side. Just my thought which is usually wrong, but, 

thought I would pass it on any way.



Jim Addington

N444BD

500A

Subject: Nose wheel problems

 	  Quote: 	
		   

 <hawkins(at)cms.udel.edu>



 Hey all-



 Well, no luck in selling N2760B here in Delaware - so thinking I'll just

 start flying her.  Have a couple of well qualified pilots with the

 Commander here at Georgetown.



 Ran into a problem this weekend though.  Know the nose wheel steering is

 "tricky" - but we're having a problem with it turning hard left and not

 being able to get it centered again.  Even with full right rudder and

 full throttle on the left engine.



 When you shut down, you can go out and turn it to center by hand - very

 little (if any) pressure on the ram.



 Checked for air in cylinder - nothing.



 Looking at the hydraulic drawing - could the nose wheel steering by-pass

 valve be bad? Such that fluid just passes through valve rather than to

 the ram?



 Funny that it only goes hard left - never hard right?  At least not yet!



 Hydraulic pressure is running a bit high (1200 psi - just shy of the

 relief) and we need to adjust down to be 900 - 1100 as I understand.

 Only hydraulic pump on the left engine.



 No problem with flap or gear - just "quick" because of the slightly high

 pressure.



 At about 1000 RPM we can hear a bit of hydraulic "chatter" down between

 the seats where the hand pump selector valve and relief valve are.  It

 goes away at around 1500 RPM.



 Just trying to give you all the symptoms in case there's a connection.

 All hydraulic related, but hard left on the nose wheel is the real

 problem right now.



 Could it be "operator error" - something we're doing wrong in handling

 her on the ground?  Our pilot with lots of time in the Commander has

 never had the severe "hard left" problem in his bird - though very

 familiar with the tricky steering.



 All suggestions appreciated.



 Thanks,

 Matt



 ********************

 Matthew Hawkins

 Director, Marine Ops

 R/V HUGH R. SHARP

 302-645-4341

 FAX: 302-645-4006

 hawkins(at)udel.edu

amg3636(at)hotmail.com
Guest

Posted: Mon Oct 30, 2006 10:52 pm Post subject: Nose wheel problems

I'll tell you what I did to fix mine.



I made a hose to fit the fitting on the brake assembly, then put a 1500 lb 

oil gauge on the other end. Take off the cover under the brake valves. 

Attach hose to brake fitting. Pump up the hand valve to about 900 lbs. There 

should be no pressure to the brake assembly. ( Yours probably has some 

pressure) Adjust the fitting on the brake valve to let pressure show on the 

gauge. pump hand valve back up as needed to maintain good pressure. It needs 

to be adjusted so no pressure is on the gauge unless you push the brake 

pedal, ( 500 - 700 lbs I think). I was about to sell my plane because It 

would not steer one way, I thought it was just me. I did this , and in 5 

minutes it was like new.Of course this may not be your problem, but it's 

worth a try. I think I spent $40.00 on my gauge. My 500 has Clevland brakes, 

I assume yours has the fitting to attach to.



Good luck,



Roland

 	  Quote: 	
		  From: "Matthew J. Hawkins" <hawkins(at)cms.udel.edu>

Reply-To: commander-list(at)matronics.com

To: <commander-list(at)matronics.com>

Subject: Nose wheel problems

Date: Mon, 30 Oct 2006 12:17:32 -0500




<hawkins(at)cms.udel.edu>



Hey all-



Well, no luck in selling N2760B here in Delaware - so thinking I'll just

start flying her.  Have a couple of well qualified pilots with the

Commander here at Georgetown.



Ran into a problem this weekend though.  Know the nose wheel steering is

"tricky" - but we're having a problem with it turning hard left and not

being able to get it centered again.  Even with full right rudder and

full throttle on the left engine.



When you shut down, you can go out and turn it to center by hand - very

little (if any) pressure on the ram.



Checked for air in cylinder - nothing.



Looking at the hydraulic drawing - could the nose wheel steering by-pass

valve be bad? Such that fluid just passes through valve rather than to

the ram?



Funny that it only goes hard left - never hard right?  At least not yet!



Hydraulic pressure is running a bit high (1200 psi - just shy of the

relief) and we need to adjust down to be 900 - 1100 as I understand.

Only hydraulic pump on the left engine.



No problem with flap or gear - just "quick" because of the slightly high

pressure.



At about 1000 RPM we can hear a bit of hydraulic "chatter" down between

the seats where the hand pump selector valve and relief valve are.  It

goes away at around 1500 RPM.



Just trying to give you all the symptoms in case there's a connection.

All hydraulic related, but hard left on the nose wheel is the real

problem right now.



Could it be "operator error" - something we're doing wrong in handling

her on the ground?  Our pilot with lots of time in the Commander has

never had the severe "hard left" problem in his bird - though very

familiar with the tricky steering.



All suggestions appreciated.



Thanks,

Matt



********************

Matthew Hawkins

Director, Marine Ops

R/V HUGH R. SHARP

302-645-4341

FAX: 302-645-4006

hawkins(at)udel.edu




	


_________________________________________________________________

Find a local pizza place, music store, museum and more…then map the best 

route!  http://local.live.com?FORM=MGA001

br549phil(at)mindspring.c
Guest

Posted: Tue Oct 31, 2006 7:46 am Post subject: Nose wheel problems

When I brought mine home had a similar problem.  

Most of the fault was with somebody "overshimming " the steering collar on

the nose wheel so that it had lots of friction.

The second part of the fix was to follow the brake valve pressure

adjustment procedure in the maintenance manual.

After doing these it steers like a dream.



Phil Stubbs

 	  Quote: 	
		   [Original Message]

 From: Jim Addington <jtaddington(at)charter.net>

 To: <commander-list(at)matronics.com>

 Date: 10/30/2006 10:37:12 PM

 Subject: Re: Nose wheel problems



 

<jtaddington(at)charter.net>
	


 	  Quote: 	
		  

 Matt,

 I don't know if the system is any where near the same as my 500A, but, I

had 
	


 	  Quote: 	
		   a problem one time where I had put the gear handle down and had three

green 
	


 	  Quote: 	
		   but when we landed and put in right rudder and brake the plane went left. 

 What I found was the handle was down and the gear was down with green

lights 
	


 	  Quote: 	
		   but the handle was not locked down. What I think happened was the ports

were 
	


 	  Quote: 	
		   not lined up properly and the right side brake and steering was putting 

 pressure in the left side. Just my thought which is usually wrong, but, 

 thought I would pass it on any way.



 Jim Addington

 N444BD

 500A

 Subject: Nose wheel problems

 > 

 > <hawkins(at)cms.udel.edu>

 >

 > Hey all-

 >

 > Well, no luck in selling N2760B here in Delaware - so thinking I'll just

 > start flying her.  Have a couple of well qualified pilots with the

 > Commander here at Georgetown.

 >

 > Ran into a problem this weekend though.  Know the nose wheel steering is

 > "tricky" - but we're having a problem with it turning hard left and not

 > being able to get it centered again.  Even with full right rudder and

 > full throttle on the left engine.

 >

 > When you shut down, you can go out and turn it to center by hand - very

 > little (if any) pressure on the ram.

 >

 > Checked for air in cylinder - nothing.

 >

 > Looking at the hydraulic drawing - could the nose wheel steering by-pass

 > valve be bad? Such that fluid just passes through valve rather than to

 > the ram?

 >

 > Funny that it only goes hard left - never hard right?  At least not yet!

 >

 > Hydraulic pressure is running a bit high (1200 psi - just shy of the

 > relief) and we need to adjust down to be 900 - 1100 as I understand.

 > Only hydraulic pump on the left engine.

 >

 > No problem with flap or gear - just "quick" because of the slightly high

 > pressure.

 >

 > At about 1000 RPM we can hear a bit of hydraulic "chatter" down between

 > the seats where the hand pump selector valve and relief valve are.  It

 > goes away at around 1500 RPM.

 >

 > Just trying to give you all the symptoms in case there's a connection.

 > All hydraulic related, but hard left on the nose wheel is the real

 > problem right now.

 >

 > Could it be "operator error" - something we're doing wrong in handling

 > her on the ground?  Our pilot with lots of time in the Commander has

 > never had the severe "hard left" problem in his bird - though very

 > familiar with the tricky steering.

 >

 > All suggestions appreciated.

 >

 > Thanks,

 > Matt

 >

 > ********************

 > Matthew Hawkins

 > Director, Marine Ops

 > R/V HUGH R. SHARP

 > 302-645-4341

 > FAX: 302-645-4006

 > hawkins(at)udel.edu

 >

 >

 >

 >

Skyhawkc-172

Joined: 10 Jan 2006
Posts: 84

Posted: Tue Oct 31, 2006 12:00 pm Post subject: Nose wheel problems

Heres a MS flight sim vid for those whom haven't flown their commanders for a bit.

  

 http://video.google.com/videoplay?docid=4390310129931723937&q=aero+commander

  

 [quote]-------------- Original message -------------- 

From: "" <br549phil(at)mindspring.com> 



 	  Quote: 	
		   --> Commander-List message posted by: "" 

 

 When I brought mine home had a similar problem. 

 Most of the fault was with somebody "overshimming " the steering collar on 

 the nose wheel so that it had lots of friction. 

 The second part of the fix was to follow the brake valve pressure 

 adjustment procedure in the maintenance manual. 

 After doing these it steers like a dream. 

 

 Phil Stubbs 

 

 

 > [Original Message] 

 > From: Jim Addington 

 > To: 

 > Date: 10/30/2006 10:37:12 PM 

 > Subject: Re: Nose wheel problems 

 > 

 > --> Command  er-Lis t message posted by: "Jim Addington" 

 

 > 

 > Matt, 

 > I don't know if the system is any where near the same as my 500A, but, I 

 had 

 > a problem one time where I had put the gear handle down and had three 

 green 

 > but when we landed and put in right rudder and brake the plane went left. 

 > What I found was the handle was down and the gear was down with green 

 lights 

 > but the handle was not locked down. What I think happened was the ports 

 were 

 > not lined up properly and the right side brake and steering was putting 

 > pressure in the left side. Just my thought which is usually wrong, but, 

 > thought I would pass it on any way. 

 > 

 > Jim Addington 

 > N444BD 

 > 500A 

 > 

 > 

 > Subject: Nose wheel problems 

&gt  ; >  
	


[quote] > 

 > > --> Commander-List message posted by: "Matthew J. Hawkins" 

 > > 

 > > 

 > > Hey all- 

 > > 

 > > Well, no luck in selling N2760B here in Delaware - so thinking I'll just 

 > > start flying her. Have a couple of well qualified pilots with the 

 > > Commander here at Georgetown. 

 > > 

 > > Ran into a problem this weekend though. Know the nose wheel steering is 

 > > "tricky" - but we're having a problem with it turning hard left and not 

 > > being able to get it centered again. Even with full right rudder and 

 > > full throttle on the left engine. 

 > > 

 > > When you shut down, you can go out and turn it to center by hand - very 

 > > little (if any) pressure on the ram. 

 > > 

 > > Checked for air   in cy linder - nothing. 

 > > 

 > > Looking at the hydraulic drawing - could the nose wheel steering by-pass 

 > > valve be bad? Such that fluid just passes through valve rather than to 

 > > the ram? 

 > > 

 > > Funny that it only goes hard left - never hard right? At least not yet! 

 > > 

 > > Hydraulic pressure is running a bit high (1200 psi - just shy of the 

 > > relief) and we need to adjust down to be 900 - 1100 as I understand. 

 > > Only hydraulic pump on the left engine. 

 > > 

 > > No problem with flap or gear - just "quick" because of the slightly high 

 > > pressure. 

 > > 

 > > At about 1000 RPM we can hear a bit of hydraulic "chatter" down between 

 > > the seats where the hand pump selector valve and relief valve are. It 

 > > goes away at around 1  500 RP M. 

 > > 

 > > Just trying to give you all the symptoms in case there's a connection. 

 > > All hydraulic related, but hard left on the nose wheel is the real 

 > > problem right now. 

 > > 

 > > Could it be "operator error" - something we're doing wrong in handling 

 > > her on the ground? Our pilot with lots of time in the Commander has 

 > > never had the severe "hard left" problem in his bird - though very 

 > > familiar with the tricky steering. 

 > > 

 > > All suggestions appreciated. 

 > > 

 > > Thanks, 

 > > Matt 

 > > 

 > > ******************** 

 > > Matthew Hawkins 

 > > Director, Marine Ops 

 > > R/V HUGH R. SHARP 

 > > 302-645-4341 

 > > FAX: 302-645-4006 

 > > hawkins(at)udel.edu 

&  gt; &g   List    	  Quote: 	
		  [b]

BillLeff1(at)aol.com
Guest

Posted: Tue Oct 31, 2006 4:06 pm Post subject: Nose wheel problems

Check your nose wheel steering collar for wear on the upper and lower  surfaces. Also the strut could have to much wear. If it has too much clearance  it will cock when steering one direction.

  

 Bill Leff

  [quote][b]

Jim Addington

Joined: 09 Jan 2006
Posts: 62
Location: Denton, Texas

Posted: Tue Oct 31, 2006 7:41 pm Post subject: Nose wheel problems

That was a nice video, really enjoyed  it.

 Jim Addington

 N444BD

 500A

 [quote]   ---

rsrandazzo(at)precisionma
Guest

Posted: Tue Oct 31, 2006 7:52 pm Post subject: Nose wheel problems

Jim-

  

 It was....  tis a shame that even virtual commanders  are starting to show signs of corrosion tho...    hahahah

  

 Rob

  



   From: owner-commander-list-server(at)matronics.com  [mailto:owner-commander-list-server(at)matronics.com] On Behalf Of Jim  Addington

Sent: Tuesday, October 31, 2006 19:41

To:  commander-list(at)matronics.com

Subject: Re: Nose wheel  problems

 

 That was a nice video, really enjoyed  it.

 Jim Addington

 N444BD

 500A

 [quote]   ---

Jim Addington

Joined: 09 Jan 2006
Posts: 62
Location: Denton, Texas

Posted: Tue Oct 31, 2006 8:15 pm Post subject: Nose wheel problems

I noticed, it was sad.

  

 Jim

 [quote]   ---

Skyhawkc-172

Joined: 10 Jan 2006
Posts: 84

Posted: Tue Oct 31, 2006 11:29 pm Post subject: Nose wheel problems

no corrosion here...

 MS Flight sim

 http://www.aoc.noaa.gov/Snow%20Survey%20HI-RES.wmv

  

 [quote]-------------- Original message -------------- 

From: "Jim Addington" <jtaddington(at)charter.net> 

    I noticed, it was sad.

  

 Jim

 [quote] ---

Skyhawkc-172

Joined: 10 Jan 2006
Posts: 84

Posted: Tue Oct 31, 2006 11:39 pm Post subject: Nose wheel problems

OK, the real thing.  

 http://www.aviationspeakers.com/Speakers/bob-hoover.php

  

 [quote]-------------- Original message -------------- 

From: skyhawkc-172(at)comcast.net 

 no corrosion here...

 MS Flight sim

 http://www.aoc.noaa.gov/Snow%20Survey%20HI-RES.wmv

  

 [quote]-------------- Original message -------------- 

From: "Jim Addington" <jtaddington(at)charter.net> 

    I noticed, it was sad.

  

 Jim

 [quote] ---

Jim Addington

Joined: 09 Jan 2006
Posts: 62
Location: Denton, Texas

Posted: Wed Nov 01, 2006 7:09 am Post subject: Nose wheel problems

I saw this last year and lost it when my computer  email went south on me. I really did like it and I now have it  again.

  

 Thanks

 Jim

 [quote]   ---

bowing74(at)earthlink.net
Guest

Posted: Wed Nov 01, 2006 12:20 pm Post subject: Nose wheel problems

One kool dude!  

bilbo        

  

From: owner-commander-list-server(at)matronics.com [mailto:owner-commander-list-server(at)matronics.com] On Behalf Of skyhawkc-172(at)comcast.net

 Sent: Wednesday, November 01, 2006 2:40 AM

 To: commander-list(at)matronics.com

 Subject: Re: Nose wheel problems  

  

     

OK, the real thing.    

    

http://www.aviationspeakers.com/Speakers/bob-hoover.php  

    

   

  [quote]  

-------------- Original message -------------- 

 From: skyhawkc-172(at)comcast.net     

no corrosion here...  

    

MS Flight sim  

    

http://www.aoc.noaa.gov/Snow%20Survey%20HI-RES.wmv  

    

   

  [quote]  

-------------- Original message -------------- 

 From: "Jim  Addington" <jtaddington(at)charter.net>     

I noticed, it was sad.  

    

   

    

Jim  

  [quote]    

---

amg3636(at)hotmail.com
Guest

Posted: Thu Nov 02, 2006 4:12 am Post subject: Nose wheel problems

Matt,



It finally came through.



Thanks,



Roland

 	  Quote: 	
		  From: Matt Dralle <dralle(at)matronics.com>

Reply-To: commander-list(at)matronics.com

To: commander-list(at)matronics.com

Subject: RE: Nose wheel problems

Date: Mon, 30 Oct 2006 18:38:39 -0800




Roland,



Doesn't look like it even made it to the Matronics Email Server.  Your 

"test" message is the only message I'm finding in the logs.



Best regards,



Matt Dralle

Matronics Email List Admin



At 06:29 PM 10/30/2006  Monday, you wrote:

 >

<amg3636(at)hotmail.com>

 >

 >This is a test.  I posted a reply several hours ago have not seen it yet.

 >

 >Roland

 >

 >

 >>From: "Matthew J. Hawkins" <hawkins(at)cms.udel.edu>

 >>Reply-To: commander-list(at)matronics.com

 >>To: commander-list(at)matronics.com

 >>Subject: Nose wheel problems

 >>Date: Mon, 30 Oct 2006 12:17:32 -0500

 >>

 >>

<hawkins(at)cms.udel.edu>

 >>

 >>Hey all-

 >>

 >>Well, no luck in selling N2760B here in Delaware - so thinking I'll just

 >>start flying her.  Have a couple of well qualified pilots with the

 >>Commander here at Georgetown.

 >>

 >>Ran into a problem this weekend though.  Know the nose wheel steering is

 >>"tricky" - but we're having a problem with it turning hard left and not

 >>being able to get it centered again.  Even with full right rudder and

 >>full throttle on the left engine.

 >>

 >>When you shut down, you can go out and turn it to center by hand - very

 >>little (if any) pressure on the ram.

 >>

 >>Checked for air in cylinder - nothing.

 >>

 >>Looking at the hydraulic drawing - could the nose wheel steering by-pass

 >>valve be bad? Such that fluid just passes through valve rather than to

 >>the ram?

 >>

 >>Funny that it only goes hard left - never hard right?  At least not yet!

 >>

 >>Hydraulic pressure is running a bit high (1200 psi - just shy of the

 >>relief) and we need to adjust down to be 900 - 1100 as I understand.

 >>Only hydraulic pump on the left engine.

 >>

 >>No problem with flap or gear - just "quick" because of the slightly high

 >>pressure.

 >>

 >>At about 1000 RPM we can hear a bit of hydraulic "chatter" down between

 >>the seats where the hand pump selector valve and relief valve are.  It

 >>goes away at around 1500 RPM.

 >>

 >>Just trying to give you all the symptoms in case there's a connection.

 >>All hydraulic related, but hard left on the nose wheel is the real

 >>problem right now.

 >>

 >>Could it be "operator error" - something we're doing wrong in handling

 >>her on the ground?  Our pilot with lots of time in the Commander has

 >>never had the severe "hard left" problem in his bird - though very

 >>familiar with the tricky steering.

 >>

 >>All suggestions appreciated.

 >>

 >>Thanks,

 >>Matt

 >>

 >>********************

 >>Matthew Hawkins

 >>Director, Marine Ops

 >>R/V HUGH R. SHARP

 >>302-645-4341

 >>FAX: 302-645-4006

 >>hawkins(at)udel.edu

 >>

 >>

 >>

 >

 >_________________________________________________________________

 >Live Search!

 >

 >

 >



Matt G Dralle | Matronics | PO Box 347 | Livermore | CA | 94551

925-606-1001 V | 925-606-6281 F | dralle(at)matronics.com Email

http://www.matronics.com/ WWW | Featuring Products For Aircraft




	


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