1224 h-h motor.

butchyboy

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hi guys i,ve a spanking new 1224 h-h motor i picked up :) am wondering would it be ok on a 1.85m aluminium dish ??.
 

Ratzvan

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Yes, if dish isn't too heavy.
Anyway for a 185 dish I suggest you to get a metal plate like the following one and put it inside the motor block.



Rotor works very fine, but it has the defect of possible block breaking (caused by a big dish and strong wind)
With a good metal plate like the quoted one I had no problem with my 180cm dish on my 1224EL model in the last ten years ;)
 

butchyboy

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Yes, if dish isn't too heavy.
Anyway for a 185 dish I suggest you to get a metal plate like the following one and put it inside the motor block.



Rotor works very fine, but it has the defect of possible block breaking (caused by a big dish and strong wind)
With a good metal plate like the quoted one I had no problem with my 180cm dish on my 1224EL model in the last ten years ;)
do you have measurements for that plate and also how many mm in thickness does the plate need to be ??.
 

Ratzvan

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22,693
No I haven't.
My father take the measures and made it manually on the form of the one I quoted before in the far 2012 :)
You have to remove the screws, open the motor block and take the measures for the plate respecting the holes distance inside.
Then plate has to be fixed to the block.
That's all.

For any further help, you can ask to my friend anto@ by pm.
It has the same rotor and he did thousand of tests in his life ;)
Surely he could help better than me (y)

Cheers
 

RimaNTSS

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There is a drawing made by a friend of mine, Wim. In fact, in the past, I made several such a reinforcement plates out of 5mm stainless steel.
I've seen only one case, when Jaeger 1224 broke trying to hold 1.8m plastic offset antenna. I personally think that installing reinforcement plate, the aluminum body of the motor will not become much stronger as several holes will be made in the aluminum body, so, crack is still possible. I might be wrong here. I did not see any pictures of motor broken with reinforcement plate installed. Why not to try then, it will make user not so nervous during storms :D

 

butchyboy

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thanks rimants,ok i will not bother with the modded plate as you say it does not really reinforce the motor etc
 

anto@

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in the pm you sent me I didn't understand which plate you needed and I answered you incorrectly, I thought the bracket that connects the dish to the disc the 1224 engine is very weak in the original configuration I broke into 2 pieces in strong winds later I redid the motherboard under 10 mm iron thereafter no problem now weighs almost 30 kg very robust


 
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butchyboy

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in the pm you sent me I didn't understand which plate you needed and I answered you incorrectly, I thought the bracket that connects the dish to the disc the 1224 engine is very weak in the original configuration I broke into 2 pieces in strong winds later I redid the motherboard under 10 mm iron thereafter no problem now weighs almost 30 kg very robust
yes i was on about the plate that goes inside the motor its self and yes good thinking on reinforcing the one that attaches to dish.
do you have any pictures and measurements etc
 

anto@

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he put the measurements of the internal plate Rima NTSS


for the other plates I made the imprint of the mother plate and then I gave it to a blacksmith who designed it
but this motherboard is fixed under the original one, and on the original one you have to cut all the fixings, it's a big job
I would only put the internal one
the problem with this engine is that the attachment for the engine of the elevation
it was placed not in the center of the plate and when the EL motor moves this creates a torsion of the metal which deforms after some time and then breaks, I add being built with poor quality and robust material (ZAMA) on medium-sized systems size is not very reliable
in fact mine broke with a 150 disc
now it has been modified with a lot of metal added
 

moonbase

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The SMO-36 H-H motor is the bigger version of the 1224, capable of taking larger dishes easily.
Not easy to find second user models but very good motors for H-H.

Also, another option for H-H is the AJAK H180 chain drive motor, capable of taking a 3.0m dish and probably larger.
Again, not easy to find but there are some around.
 

butchyboy

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Would it be possible to exchange out all the original body to say 10mm aluminum body especially around where the pressure will be.
 

moonbase

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Would it be possible to exchange out all the original body to say 10mm aluminum body especially around where the pressure will be.

Why not wrap the original body in an enclosure of some type with circular holes top and bottom to allow the rotating spindle to pass through?
It is a lot easier than removing the entire guts of the motor and transplanting them in a custom made aluminium body.

The main point as I see it with a reinforced body is to prevent dish damage should the original casing shear.
Provided an external enclosure wrapped around the original meets that need it is job done.
 

moonbase

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Can I ask where you got it from? I am looking for one for my 1.25 Gibby.


I got spare 1224's 'ere for sale, one brand new and boxed, others used but in good condition.
Prices aint cheap, you need thick green, especially for the brand new one, real thick green.
 

butchyboy

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Why not wrap the original body in an enclosure of some type with circular holes top and bottom to allow the rotating spindle to pass through?
It is a lot easier than removing the entire guts of the motor and transplanting them in a custom made aluminium body.

The main point as I see it with a reinforced body is to prevent dish damage should the original casing shear.
Provided an external enclosure wrapped around the original meets that need it is job done.
How you mean a enclosure,just to protect the original casing from the weather and elements ??.

And any idea of what to material to make the enclosure from??.
 
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