Wanted chaparral skew motor

Trust

Trust

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947
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1.8 m CM at SMR 1224 + Elev. with 7 lnb changer Ku (lin - circ) - Ka (lin - circ) C (lin - circ)
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Nijmegen Netherlands
I do have a OMT from SMW with M4 thread .
the O ring has a ID 27.3 x 1.9 mm
same set fits in a Echostar LNB
 
subman

subman

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280
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echostar 3600
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essex
Thanks Trust Thats funny one set of drawings show M3 and the other M4 , I have emailed a few people so hope to find out what they are but it all standards WR75 flange , I may not have to use them if I can get the old ones out but from past experience they will shear off . I wont be using the old corotor or old LNB so best I leave it all together . Because if it shears off I will need a pillar drill to drill it out then retap the hole so best I find some new screws . Depth of screws seems to be 5.2 and O ring size seems to be ok . Yes I would think it would be the size for all WR75 Flange LNBs .
 

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subman

subman

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280
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echostar 3600
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essex
Yes on that page now : This one has M4
 

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subman

subman

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280
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echostar 3600
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essex
Well I used the pressure jet the other day and its not as bad as I thought it was .
 

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subman

subman

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Messages
280
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echostar 3600
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essex
The update on the O ring and set of screws for a WR75 flange , I bought a set yesterday but it came with a free LNB , All for £10 .
 

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subman

subman

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280
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echostar 3600
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essex
Well I spoke to soon the O ring that came with the screws and the Ku LNB the other day its to large , I would have thought a WR75 flange would be standard but its clear that its not as you can see from the pictures .
 

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Channel Hopper

Channel Hopper

Suffering fools, so you don't have to.
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A little less analogue, and a lot more crap.
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Well I spoke to soon the O ring that came with the screws and the Ku LNB the other day its to large , I would have thought a WR75 flange would be standard but its clear that its not as you can see from the pictures .
I'm sure I mentioned similar in a previous post.

Still, you have a nice LNB for a tenner.
 
subman

subman

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Messages
280
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echostar 3600
My Location
essex
Hi CH yes about to make a start and I find out that the LNB that came with a O ring and set of screws is the wrong size I thought that WR75 flange O rings were all the same size . Anyway its being returned tomorrow as I want a O ring and a set of screws I may have to do what you said and use the old ones thats if I can get the old screws out without shearing them off .
 

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Channel Hopper

Channel Hopper

Suffering fools, so you don't have to.
Staff member
Messages
30,373
My Satellite Setup
A little less analogue, and a lot more crap.
My Location
UK
Hi CH yes about to make a start and I find out that the LNB that came with a O ring and set of screws is the wrong size I thought that WR75 flange O rings were all the same size . Anyway its being returned tomorrow as I want a O ring and a set of screws I may have to do what you said and use the old ones thats if I can get the old screws out without shearing them off .
I'm sure I mentioned similar in a previous post.

Use some quality penetrating fluid and leave for a week, the corotor bolts are Torx from memory so buy a good quality tool that fits perfectly with the tenner you might get back.
 
subman

subman

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Messages
280
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echostar 3600
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essex
Yes your thinking the same as me remove the elbow with my Torx screw driver after lots of penetrating fluid , I did buy a replacement corotor from one of the other forum members but I want to get this old LNB off first then try the SMW one to confirm the SMW is ok . As for that Free Ku LNB with its O ring and screws its on its way tomorrow back to Hypex the other firm selling the O ring and screw set wanted £6.00 plus £24.00 postage .
 
Trust

Trust

Specialist Contributor
Messages
947
My Satellite Setup
1.8 m CM at SMR 1224 + Elev. with 7 lnb changer Ku (lin - circ) - Ka (lin - circ) C (lin - circ)
My Location
Nijmegen Netherlands
Well I spoke to soon the O ring that came with the screws and the Ku LNB the other day its to large , I would have thought a WR75 flange would be standard but its clear that its not as you can see from the pictures .
Rubbing in with grease , butter or vasaline that ring let slip it in the groove when tightning the screws
 
subman

subman

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Messages
280
My Satellite Setup
echostar 3600
My Location
essex
Sorry but the O ring is a few mm to large for that so I have boxed it all up and it will be returned tomorrow . I would have bought the other Kit for £6 but the PP was £24.00 .
 

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jeallen01

jeallen01

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Somewhere in England (possibly?)!
Very easy & cheap to buy pretty much any size of O ring on ebay - just search for what you want!
 
subman

subman

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280
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echostar 3600
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essex
Well I think its a 28.5 diameter as for the gauge I have no idea .
 

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jeallen01

jeallen01

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Last edited:
RimaNTSS

RimaNTSS

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Some SAT-related hardware.
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N-E from Riga
@subman If you wish I can send you those O-rings , for sure at least one of them should fit.
 

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subman

subman

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Messages
280
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echostar 3600
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essex
Good Morning Rimants yes please send me a O ring as far as I can see its 28.5 O ring as far as the screws go there 4mm as for depth 4.1 . with a bit of luck I might finish this project but its clear that the UK has very little dealers who deal with these items these days . The dealer does not want the LNB , O ring and screws back in his words he told me to dump it so if any one wants a free LNB let me know .

73
 

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subman

subman

Member
Messages
280
My Satellite Setup
echostar 3600
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essex
Ok guys just returned from the back garden and gave the LNB screws a good spray of WD sorry but I dont have any other to use .On my first attempt the screws are seized solid but I will give it a go tomorrow and see how we get on .

Skew motor is also seized solid was going to remove the motor from the corotor but only one screw is free the others are seized solid so if I cant move them its Plan B . Use the replacement Corotor and load that up with the replacement LNBs on that .

As for the old corotor I think that will have to go down the local engineering firm and they may have to drill and retap . As for the O ring and screw size just had a reply from SMW .

Thank you for your email.

The O-Ring dimension shall be: 26.7x1.78 mm (Conductive)

Mounting screws are: 4pcs M4 x 10mm (Millimeter screws)

Best regards / Med vänlig hälsning

Olle Carlsson

Applications & Sales Engineer

So its slow but we are getting there . Many thanks to Satfaca for the Corotor .
 
subman

subman

Member
Messages
280
My Satellite Setup
echostar 3600
My Location
essex
Just when you thought every thing was ready to go we have a new problem the replacement Corotor does not have a Ku band elbow . So I need to find a find a replacement elbow from a old corotor or just find a Ku band Elbow , Any thoughts ?

Or drill out the holes on the flange on the corotor so a screw will pass through and cut down the screw length so you can screw in from under the flange . 2 are ok but the other 2 with need to be cut down a few mm , Any thoughts ?
 

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