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Equipment Discussions >> Classic Telescopes

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turk123
Pooh-Bah
*****

Reged: 07/09/10

Loc: N.E. Ohio
Re: Elli Buk Cave 10" Cassegrain [Re: turk123]
      #5858644 - 05/13/13 09:36 PM Attachment (16 downloads)

Here is the order of parts making up the work assembly. The top two bolts are the mounting bolts that go threw the plate around the DEC shaft and into the worm block.

The two side bolts hold the edge of the two bronze bushings from coming out. It also provides for a tensioner for the worm shaft.

Edited by turk123 (05/13/13 09:37 PM)


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turk123
Pooh-Bah
*****

Reged: 07/09/10

Loc: N.E. Ohio
Re: Elli Buk Cave 10" Cassegrain [Re: turk123]
      #5858651 - 05/13/13 09:38 PM Attachment (16 downloads)

Another parts order picture

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turk123
Pooh-Bah
*****

Reged: 07/09/10

Loc: N.E. Ohio
Re: Elli Buk Cave 10" Cassegrain [Re: turk123]
      #5858656 - 05/13/13 09:42 PM Attachment (12 downloads)

Guess I'm lucky in two ways. Loosened the cradle bolt from the top and 1 1/2" shaft almost took off my toe! Fell right out which is the second lucky think. Didn't hit my toe, and didn't have to beat it.

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turk123
Pooh-Bah
*****

Reged: 07/09/10

Loc: N.E. Ohio
Re: Elli Buk Cave 10" Cassegrain [Re: turk123]
      #5858661 - 05/13/13 09:44 PM Attachment (10 downloads)

DEC gear with bearing sitting right on top. Just lift it away.

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turk123
Pooh-Bah
*****

Reged: 07/09/10

Loc: N.E. Ohio
Re: Elli Buk Cave 10" Cassegrain [Re: turk123]
      #5858665 - 05/13/13 09:45 PM Attachment (13 downloads)

Just sits up there.

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turk123
Pooh-Bah
*****

Reged: 07/09/10

Loc: N.E. Ohio
Re: Elli Buk Cave 10" Cassegrain [Re: turk123]
      #5858672 - 05/13/13 09:47 PM Attachment (15 downloads)

The three hex bolts come out to remove the clutch?? It has a delicate split ring inside ( at least mine is split!)

Notice the writing that says "Oil"


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turk123
Pooh-Bah
*****

Reged: 07/09/10

Loc: N.E. Ohio
Re: Elli Buk Cave 10" Cassegrain [Re: turk123]
      #5858675 - 05/13/13 09:48 PM Attachment (14 downloads)

Gear lifts off. You can just see the ring inside.

Is this to be cleaned and not greased???

Edited by turk123 (05/13/13 09:49 PM)


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turk123
Pooh-Bah
*****

Reged: 07/09/10

Loc: N.E. Ohio
Re: Elli Buk Cave 10" Cassegrain [Re: turk123]
      #5858680 - 05/13/13 09:51 PM Attachment (14 downloads)

I had to bring out the small hammer to tap this ring off the main shaft. Put WD-40 on shaft to get it to free up.

There is the other bearing. One just like this on the other side. I did not take them out. I used WD-40 on the to clean and lubricate and wiped many times with a rag to remove dirt. They turn very well now and will get grease later.

Edited by turk123 (05/13/13 09:52 PM)


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turk123
Pooh-Bah
*****

Reged: 07/09/10

Loc: N.E. Ohio
Re: Elli Buk Cave 10" Cassegrain [Re: turk123]
      #5858687 - 05/13/13 09:54 PM Attachment (12 downloads)

To get the plug out of the end and then to remove bolt from inside, I had to use a pipe on a allen wrench for leverage. Hardest bolt yet to get out.

Edited by turk123 (05/13/13 09:54 PM)


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turk123
Pooh-Bah
*****

Reged: 07/09/10

Loc: N.E. Ohio
Re: Elli Buk Cave 10" Cassegrain [Re: turk123]
      #5858689 - 05/13/13 09:55 PM Attachment (9 downloads)

I had to really crank on it. Fortunately the Allen wrench is very large.

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turk123
Pooh-Bah
*****

Reged: 07/09/10

Loc: N.E. Ohio
Re: Elli Buk Cave 10" Cassegrain [Re: turk123]
      #5858692 - 05/13/13 09:56 PM Attachment (12 downloads)

Parts are getting smaller! Here is the end of the RA shaft. There is the bolt I had to remove and I put it back into the shaft.

Edited by turk123 (05/13/13 09:58 PM)


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Datapanic
Carpal Tunnel
*****

Reged: 10/17/09

Loc: Tucson, Arizona
Re: Elli Buk Cave 10" Cassegrain [Re: turk123]
      #5858693 - 05/13/13 09:56 PM

I usually clean that teflon strip with soapy water then give it a light coating of silicon Super Lube. Be gentle with it because it can easily bend. Be sure to mark which way the clutch goes because more than likely, the bolt holes only line up one way. If it's too late for that, it's not too hard to figure it out

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turk123
Pooh-Bah
*****

Reged: 07/09/10

Loc: N.E. Ohio
Re: Elli Buk Cave 10" Cassegrain [Re: turk123]
      #5858700 - 05/13/13 09:59 PM Attachment (14 downloads)

This is the largest bolt on the mount. It is painted and not going anywhere. It now becomes the biggest challenge to remove.

Out comes the hammer again and lots of WD-40 and it finally breaks away.


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turk123
Pooh-Bah
*****

Reged: 07/09/10

Loc: N.E. Ohio
Re: Elli Buk Cave 10" Cassegrain [Re: turk123]
      #5858703 - 05/13/13 10:00 PM Attachment (14 downloads)

There is the bolt

My cap has two set screws to help hold the whole assemble at the right angle.

Edited by turk123 (05/13/13 10:02 PM)


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turk123
Pooh-Bah
*****

Reged: 07/09/10

Loc: N.E. Ohio
Re: Elli Buk Cave 10" Cassegrain [Re: turk123]
      #5858710 - 05/13/13 10:04 PM Attachment (12 downloads)

The RA motor box. The motor is held in place by one hole drill through the motor housing just as many of you described in your restorations.

I took the three hex bolts off the ring gear and removed.

Edited by turk123 (05/13/13 10:05 PM)


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turk123
Pooh-Bah
*****

Reged: 07/09/10

Loc: N.E. Ohio
Re: Elli Buk Cave 10" Cassegrain [Re: turk123]
      #5858711 - 05/13/13 10:06 PM Attachment (10 downloads)

Here it is off the shaft.

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turk123
Pooh-Bah
*****

Reged: 07/09/10

Loc: N.E. Ohio
Re: Elli Buk Cave 10" Cassegrain [Re: turk123]
      #5858713 - 05/13/13 10:07 PM Attachment (12 downloads)

Dropped the motor off the bracket. Keeping the wires intact for now.

Edited by turk123 (05/13/13 10:20 PM)


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turk123
Pooh-Bah
*****

Reged: 07/09/10

Loc: N.E. Ohio
Re: Elli Buk Cave 10" Cassegrain [Re: turk123]
      #5858714 - 05/13/13 10:08 PM Attachment (12 downloads)

You can see the worm assembly attached to the housing plate just as the dec was attached, with 2 hex bolts.

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turk123
Pooh-Bah
*****

Reged: 07/09/10

Loc: N.E. Ohio
Re: Elli Buk Cave 10" Cassegrain [Re: turk123]
      #5858716 - 05/13/13 10:09 PM Attachment (9 downloads)

Pop out the two bolts and the whole worm assembly block comes off.

Edited by turk123 (05/13/13 10:09 PM)


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turk123
Pooh-Bah
*****

Reged: 07/09/10

Loc: N.E. Ohio
Re: Elli Buk Cave 10" Cassegrain [Re: turk123]
      #5858724 - 05/13/13 10:14 PM Attachment (12 downloads)

OK Here is where I need some help. There are three set screws holding the gear plate on the shaft. They are on so tight, the allen wrenches are now rounding the holes. I soaked them in Blaster and still can't get two of them out. Ideas??? Chisel a slot into them and use a screwdriver? Looks like dissimilar metals has fused them together.

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