Simviation Forum - Radial Motor Repair

Oct 13^th, 2005 at 11:23pm

Willit Run Offline
Colonel
Jack's Back!!
Cherry Hill, New Jersey USA

Posts: 4030

Sorry these are not the type of radial motors you though they would be. These are HMB200 Staffa
hydraulic motors. I repaired them this week for a mushroom farm in Pennsylvania. These units run
a large conveyor moving basically crap! They need to feed the mushrooms. The first two pictures are before the repair but, after they were cleaned and the second two pictures are showing on the dyno being tested.
Just thought you might like to see a different type of radial motor.

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Reply #1 - Oct 14^th, 2005 at 7:43am

beaky Offline
Global Moderator
Uhhhh.... yup!
Newark, NJ USA

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Posts: 14187

Very educational- I've never seen or even heard of a motor powered by hydraulic pressure! I'm thinking about why they might be used for that application.... huge piles of crap underground... methane...?
They sure look good now. I'm curious- what work exactly was done on them?

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Reply #2 - Oct 14^th, 2005 at 7:54am

Fozzer Offline
Colonel
An elderly FS 2004 addict!
Hereford. England. EGBS.

Posts: 24861

...all they need is a carburettor, inlet manifold, magneto, five spark plugs, exhaust manifold....a propeller....
..and...
..Way-Hay...
We have a super, five-cylinder, radial engine to stick on the nose of our new home-built... Wink

... 8)...

...!

Sorted...!
LOL...!

Paul...Radial Fanatic... Grin

...!

Dell Dimension 5000 BTX Tower. Win7 Home Edition, 32 Bit. Intel Pentium 4, dual 2.8 GHz. 2.5GB RAM, nVidia GF 9500GT 1GB. SATA 500GB + 80GB. Philips 17" LCD Monitor. Micronet ADSL Modem only. Saitek Cyborg Evo Force. FS 2004 + FSX. Briggs and Stratton Petrol Lawn Mower...Motor Bikes. Gas Cooker... and lots of musical instruments!.... ...!
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Reply #3 - Oct 14^th, 2005 at 2:34pm

Jared Offline
Colonel
I'd rather be flying...
Uniontown, Ohio

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Posts: 12621

Yep you sure can use hydraulic/pnuematic motors for all kinds of stuff..

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Reply #4 - Oct 14^th, 2005 at 10:37pm

Willit Run Offline
Colonel
Jack's Back!!
Cherry Hill, New Jersey USA

Posts: 4030

Quote:

They sure look good now. I'm curious- what work exactly was done on them?

Well they were in for an overhaul. After so many hours they rotate the motors and send them to us to freshen up. I magnaflux the shaft to make sure there are no cracks and then a light hone on the cylinder bore. Check the valving to make sure there is no scoring. Then new bearings, piston rings and a complete reseal. Then lots of grey paint to make them look pretty. Dyno test them and ship them back.
That's about it!

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Reply #5 - Oct 14^th, 2005 at 10:42pm

Willit Run Offline
Colonel
Jack's Back!!
Cherry Hill, New Jersey USA

Posts: 4030

Quote:

...all they need is a carburettor, inlet manifold, magneto, five spark plugs, exhaust manifold....a propeller....
..and...
..Way-Hay...
We have a super, five-cylinder, radial engine to stick on the nose of our new home-built... Wink

... 8)...

...!

Sorted...!
LOL...!

Paul...Radial Fanatic... Grin

...!

Fozzer,

Put this on the front of your Cessna and you'll be looking at the ground from the cockpit.
They weight a ton ( figure of speech ).

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Reply #6 - Oct 14^th, 2005 at 10:45pm

beaky Offline
Global Moderator
Uhhhh.... yup!
Newark, NJ USA

Gender:
Posts: 14187

Quote:

Well they were in for an overhaul. After so many hours they rotate the motors and send them to us to freshen up. I magnaflux the shaft to make sure there are no cracks and then a light hone on the cylinder bore. Check the valving to make sure there is no scoring. Then new bearings, piston rings and a complete reseal. Then lots of grey paint to make them look pretty. Dyno test them and ship them back.
That's about it!

Thanks. That sounds very pleasant and satisfying compared to what I've been doing for several years now, which involves getting a headache rather than getting my hands dirty.
Still wondering why these are used for this application instead of gasoline or electric... any idea?

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Reply #7 - Oct 15^th, 2005 at 10:14am

Willit Run Offline
Colonel
Jack's Back!!
Cherry Hill, New Jersey USA

Posts: 4030

Quote:

Still wondering why these are used for this application instead of gasoline or electric... any idea?

Mainly because of the manure and heat issue. Electric and gas need to be vented and the manure that comes off the conveyor would clog any kind of venting and overheat and cause a failure. The hydraulic motor is a sealed unit and the pumps used to run them are in a pump house where it is a clean environment and the fluid resevoirs have coolers keeping the fluid that ciculates cool so that their isn't to much of a heat issue.
These unit come in caked with manure and I don't see how an electric motor or gas engine could survive in this environment.

&&

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