On belhalf of Tim Jorgensen
"And what pressure nitrogen goes into the oleo too? How is that done?"

 

You need to source

 

1. - a nitrogen bottle

2. - a 50 bar pressure regulator

3. - 4 ft. of high pressure hose

4. - a suitable schrader valve adapter

 

I did: 

 

1. - visit my brother. I knew he had a nitrogen bottle, so I just asked him if I could borrow it for a puff. It has been a while since he asked for the bottle, so I now consider it permanently sourced

2. - search my brothers place for a suitable regulator but failed, so I actually had to pay for one. This is NOT your off-the-shelf welding gas regulator; it is a high pressure regulator that is produced in much smaller numbers and overpriced accordingly. I believe I paid some $400 or thereabouts for mine. &%¤# !!!

 

3. - find a piece of 30 bar rated hose somewhere

 

4. - buy the smallest push-on type adapter obtainable and modifiied it on a belt sander, so it became even smaller (i have only 3/4" between my air filter box and NG schrader valve). Also replaced the rubber gasket inside the adapter; it is way too soft for these kinds of pressures. A nylon washer works.

 

I am now a certified nitrogizer. I´ll nitrogize anything. The procedures are:

 

LNC2 nose oleo:

 

Set regulator to lowest setting possible

Open nitrogen bottle (225 bar or so....)

Turn regulator up to 25 bar

Have nose wheel off the ground or things will get messy

Give it a quick puff of nitrogen

Check for 3" travel

The strut is probably slightly over inflated, so VERY carefully let a little nitrogen out. It is hard to hit the right spot, so you might have to do it over a couple of times.

 

Ongs Debongers:

 

Set regulator to lowest setting possible

Open nitrogen bottle (still 225 bar or so....)

Turn regulator up to 25 bar

Nitrogize!

Adjust height by carefully letting out a little nitrogen

The mains need not be off the ground; the Debongers do not leak oil when inflated

 

 

Regards

Tim Jorgensen

Lancair 360 MKIIOBFB