Retractable Step

[63C]

But dragging that square tube not only cost a lot of speed it creates some yaw.

Been there done that. Took me 30 minutes to figure out I left the step down causing the yaw condition.

[Bob_Belville]

Been there done that. Took me 30 minutes to figure out I left the step down causing the yaw condition.

Took me several months.

[piperpainter]

FYI if anyone needs a step and the suction/servo let me know!!! I have one for sale!

[orionflt]

FYI if anyone needs a step and the suction/servo let me know!!! I have one for sale!

pm sent

Sent from my iPhone using Tapatalk

[MB65E]

Dave, I have not tried it on a m20 step, but I have had awesome luck with Everlube 220. It's a really neat dry lube that last well outdoors. Drys Gray. It was called out on a Canadair Jet for some slides and tracks. I now use it for almost anything that needs to be dry and unstuck. (gates, latches, hinge pins, etc.

-Matt

[HRM]

My step system had been redone and works fine, except at times recently it has begun to stick in the retracted position after shutdown. I read not to use oil, what sort of lubricant should I use on it? Is there some sort of a dry powder? Can't remember?

 

Tri-flow is what I was told to use. My step works perfectly. In fact, it is one of the "Buck Rogers" features of the plane that I love. That and the swept antennae.

[Tmack1]

I went to the local tire shop and bought an inner tube the same diameter black tapped the ends on the cups worked perfect until the replacement from Britain came in

[HRM]

Tri-flow is what I was told to use. My step works perfectly. In fact, it is one of the "Buck Rogers" features of the plane that I love. That and the swept antennae.

 

I need to qualify the "works perfectly" as my plane uses the step to express her pleasure or displeasure with my landings. Had a bit of bounce when I landed at KEDC Sunday--no step, had to jump off the wing. Got back to KBPT yesterday and did a stall horn squeaker--step was down and waiting for me.

 

Spooky and just a bit creepy

[dbrnpilot]

I went to the local tire shop and bought an inner tube the same diameter black tapped the ends on the cups worked perfect until the replacement from Britain came in

Do you have a diagram or a shop sketch to show how you installed? Any advice would be great!

[Bob_Belville]

While I was waiting for a new transducer, I secured the step in the retracted position using a heavy duty plastic wire tie. I also spent $20 for a duel purpose "tool": 1) 200 shop towels & 2) light weight stool for the copilot to mount our steed:

 

http://www.tractorsupply.com/en/store/sellarsreg%3B-blue-shop-towels-9-7-8-in-x-13-1-8-in

[Dkmiata]

Hoping to get a response, this is the 4th time trying with MarshBellofram.

Sent for a quote for a new diaphragm for our retractable vacuum step servo. Keep fingers crossed.

This is what I sent. Hoping that their standard diaphragm will fit the bill.

Requesting a quote for:

ABC# 4 - 400 - 369 - 400 - D A J - ( none )

Quantity:

1 to 5

5 to 10

Bellofram Design Manual page 11

Class 4 rolling Diaphragm description :

" X " = Standard ( Tooling Available )

Standard fabric and elastomer please.

CD = 4.00

DP = 3.69

H = 4.00

Sidewall thickness = D

Effective pressure area = 11.61 inch squared

C = .155

Half stroke SA/SB = 3.45

Hope I get a response. Will let you all know as soon as I get a anything.

David

[RLCarter]

Didn't want to start a new thread so I'll add to this one seeing it is related. I read on MS that there was a possibility that the step servo seal (boot) was also used on a Beechcraft as a yaw dampner, I contacted Brittain and had them pull the drawing for part # 1551 and it WAS used on both the Mooneys and I believe he said the early King Airs. With that info in hand I set out to find a Beechcraft guru that might have one (same part# for Moonies and Beechrafts) in stock, with in a few hours I located a guy that had 2 in stock. I didn't call Beechcraft directly so I'm not sure if they have them or have another supplier other than Brittain, at $93.17 each + shipping I purchased both of them (few bucks more than sending mine in for repair, if the parts were available). One is going on my plane in the morning the other I'm going to take around to some of the injection molders I know and see if the would be willing to do something with it and get them back on the market. The other one will be available for sale if the mold makers don't bite.

[HRM]

Didn't want to start a new thread so I'll add to this one seeing it is related. I read on MS that there was a possibility that the step servo seal (boot) was also used on a Beechcraft as a yaw dampner, I contacted Brittain and had them pull the drawing for part # 1551 and it WAS used on both the Mooneys and I believe he said the early King Airs. With that info in hand I set out to find a Beechcraft guru that might have one (same part# for Moonies and Beechrafts) in stock, with in a few hours I located a guy that had 2 in stock. I didn't call Beechcraft directly so I'm not sure if they have them or have another supplier other than Brittain, at $93.17 each + shipping I purchased both of them (few bucks more than sending mine in for repair, if the parts were available). One is going on my plane in the morning the other I'm going to take around to some of the injection molders I know and see if the would be willing to do something with it and get them back on the market. The other one will be available for sale if the mold makers don't bite.

 

 

Beechcraft shows a 'Seal' under part number 1551 that goes to 2007-7.

 

KRN Aviation Services has four of them. 

 

Is that the step servo boot?