SGI: Hardware

O2 CD drive - where does the little white gear go?

icecubecheddarmilk
Who joined June 20, 2013, 10:55 p.m.
and authored 2 notes
Wrote the following at June 20, 2013, 10:59 p.m...
Howdy

I recently acquired an old R5k O2, and it suffers from the famous thrown gear problem in the CD drive unit. I've pulled apart the machine and I have the CD drive and the little white gear, but I can't figure out where it actually goes in the mechanism. I've searched the forums but the posts I came across didn't tell me where it should be. Can someone please help me? I'll take a couple of photos if that helps.
kjaer avatar
kjaer
Who joined May 7, 2008, 6:47 p.m.
and authored 284 notes
Wrote the following at June 21, 2013, 12:44 a.m...
icecubecheddarmilk wrote:
Howdy

I recently acquired an old R5k O2, and it suffers from the famous thrown gear problem in the CD drive unit. I've pulled apart the machine and I have the CD drive and the little white gear, but I can't figure out where it actually goes in the mechanism. I've searched the forums but the posts I came across didn't tell me where it should be. Can someone please help me? I'll take a couple of photos if that helps.


if it's the pinion I'm thinking of, it's press-fit over the tray motor spindle.

If it's come off because it's split, putting it back on is likely insufficient to restore the drive to operation.

_________________
:OnyxR: :IRIS3130: :IRIS2400: :Onyx: :ChallengeL: :4D220VGX: :Indigo: :Octane: :Cube: :Indigo2IMP: :Indigo2: :Indy:
PymbleSoftware
Who joined July 15, 2008, 4:48 p.m.
and authored 1877 notes
Wrote the following at June 21, 2013, 12:48 a.m...
icecubecheddarmilk wrote:
Howdy

I recently acquired an old R5k O2, and it suffers from the famous thrown gear problem in the CD drive unit. I've pulled apart the machine and I have the CD drive and the little white gear, but I can't figure out where it actually goes in the mechanism. I've searched the forums but the posts I came across didn't tell me where it should be. Can someone please help me? I'll take a couple of photos if that helps.


Welcome.


Pictures would be good. Someone could add them to the wiki after we've solved your issue. Where the white cog goes is obvious when you see it but some people just replace the entire drive (with for example a yamaha SCSI CDRW).

R.

_________________
死の神はりんごだけ食べる

開いた括弧は必ず閉じる -- あるプログラマー

:Tezro: :Tezro: :Onyx2R: :Onyx2RE: :Onyx2: :O3x04R: :O3x0: :O200: :Octane: :Octane2: :O2: :O2: :Indigo2IMP: :PI: :PI: :1600SW: :1600SW: :Indy: :Indy: :Indy: :Indy: :Indy:
:hpserv: J5600, 2 x Mac, 3 x SUN, Alpha DS20E, Alpha 800 5/550, 3 x RS/6000, Amiga 4000 VideoToaster, Amiga4000 -030, 733MHz Sam440 AmigaOS 4.1 update 1. Tandem Himalaya S-Series Nonstop S72000 ServerNet.

Sold: :Indy: :Indy: :Indy: :Indigo:

Cortex ---> http://www.facebook.com/pages/Cortex-th ... 11?sk=info
Minnie ---> http://www.facebook.com/pages/Minnie-th ... 02?sk=info
Book ----> http://pymblesoftware.com/book/
Github ---> https://github.com/pymblesoftware
Visit http://www.pymblesoftware.com
Search for "Pymble", "InstaElf", "CryWhy" or "Cricket Score Sheet" in the iPad App store or search for "Pymble" or "CryWhy" in the iPhone App store.
icecubecheddarmilk
Who joined June 20, 2013, 10:55 p.m.
and authored 2 notes
Wrote the following at June 22, 2013, 1:05 a.m...
Ok I got it working again.

Here are some pictures for the wiki.
PymbleSoftware
Who joined July 15, 2008, 4:48 p.m.
and authored 1877 notes
Wrote the following at June 22, 2013, 2:14 p.m...
icecubecheddarmilk wrote:
Ok I got it working again.

Here are some pictures for the wiki.


Thanks, the O2 topic ( http://www.nekochan.net/wiki/SGI_O2#CD-ROM ) has been updated and this forum topic credited.

R.

_________________
死の神はりんごだけ食べる

開いた括弧は必ず閉じる -- あるプログラマー

:Tezro: :Tezro: :Onyx2R: :Onyx2RE: :Onyx2: :O3x04R: :O3x0: :O200: :Octane: :Octane2: :O2: :O2: :Indigo2IMP: :PI: :PI: :1600SW: :1600SW: :Indy: :Indy: :Indy: :Indy: :Indy:
:hpserv: J5600, 2 x Mac, 3 x SUN, Alpha DS20E, Alpha 800 5/550, 3 x RS/6000, Amiga 4000 VideoToaster, Amiga4000 -030, 733MHz Sam440 AmigaOS 4.1 update 1. Tandem Himalaya S-Series Nonstop S72000 ServerNet.

Sold: :Indy: :Indy: :Indy: :Indigo:

Cortex ---> http://www.facebook.com/pages/Cortex-th ... 11?sk=info
Minnie ---> http://www.facebook.com/pages/Minnie-th ... 02?sk=info
Book ----> http://pymblesoftware.com/book/
Github ---> https://github.com/pymblesoftware
Visit http://www.pymblesoftware.com
Search for "Pymble", "InstaElf", "CryWhy" or "Cricket Score Sheet" in the iPad App store or search for "Pymble" or "CryWhy" in the iPhone App store.
smj avatar
smj
Who joined Nov. 12, 2007, 7:54 p.m.
and authored 1013 notes
Wrote the following at June 24, 2013, 12:07 a.m...
Thanks Regan! And welcome/thank you icecubecheddarmilk!

_________________
Then? :IRIS3130: ... Now? :O3x02L: :A3504L: - :A3502L: :1600SW: +MLA :Fuel: :Octane2: :Octane: :Indigo2IMP: ... Other: DEC :BA213: :BA123: Sun , DG AViiON , NeXT :Cube:
Torque
Who joined April 1, 2014, 7:56 a.m.
Wrote the following at April 9, 2014, 9:46 a.m...
Just found this thread. I'm having the exact same issue, a thrown COG (luckily it's still intact).

Does anyone know how to remove the off white CD tray from the black assembly piece? My tray is stuck about 1" open, and I can't for the life of me figure out how to remove it so that I can get to the COG motor shaft location.

Any help is appreciated! :D
kjaer avatar
kjaer
From Seattle, WA
Who joined May 7, 2008, 7:47 p.m.
Wrote the following at April 9, 2014, 3:27 p.m...
IIRC it should just pull straight out the front of the drive. If it's really "stuck", though, the gear train is probably bound, which can happen with split pinion as the teeth will no longer mesh near the split. The parts are resilient enough to withstand a reasonable amount of forcing.
:OnyxR: :IRIS3130: :IRIS2400: :Onyx: :ChallengeL: :4D220VGX: :Indigo: :Octane: :Cube: :Indigo2IMP: :Indigo2: :Indy:
Torque
Who joined April 1, 2014, 7:56 a.m.
Wrote the following at April 13, 2014, 10:52 a.m...
Thanks for the help... unfortunately it's too locked up to come out easily.

Since I don't have time to fix, I'm happy to donate this unit with all parts to anyone here free, only ask for you to cover the cost of shipping. PM me if interested.