Servo type 80

mdj21 · Jul 1, 2017

Hi,

Does anybody have the specs on a Servo type 80 power feed? How does it compare to a 150?

I see a non-working type 80 on EBay and I'm wondering if it is worth fixing for my home shop. Parts seem to be available.

Any opinions welcome.

Have a great day,

Mike.

snowman · Jul 1, 2017

Are you sure they are available? Through servo, or through Ebay? Seems like I have one that needs a new armature and ultimately gave up on it.

mdj21 · Jul 1, 2017

According to these guys, the armature assembly is $143.

http://www.icai-online.com/servo-type-80/

moonlight machine · Jul 1, 2017

Servo has no parts for the 80 and will not repair them.

mdj21 · Jul 1, 2017

This site says they have parts for the Servo type 80.

http://www.icai-online.com/servo-type-80/

They want $143 for the armature assembly.

daryl bane · Jul 1, 2017

I was looking to retrofit a Servo drive on my Hardinge Mill. The last models used ..I believe? a Servo 80 as original equipment. When I was looking to fit one one, I was told by a couple of repair guys that the Servo 150 was the best replacement, something to do with a finer feed/torque for a smaller manual machine...I dunno. Haven't finished the project so I can't confirm.

Ray Behner · Jul 1, 2017

Maybe these guys?
http://www.icai-online.com/servo-type-80/

mdj21 · Jul 1, 2017

Why is it that I can start a thread, but can't reply to anybody that answers it?

mdj21 · Jul 1, 2017

Finally......

Yea, I found that icai-online.com link earlier.

I think I'll call them before I dive into the project.

Maybe the busted 80 can be upgraded to be like a 150. Who knows.

Thanks for the replies.

rke[pler · Jul 2, 2017

I've had work done on Type 70 drives by these folks:

http://www.machinetoolelectronics.com/PartsHome.html

I think I've mentioned that these drives are a real PITA to work on. It's worth it for me to pay someone else to go in there.

Jim S. · Jul 2, 2017

I agree with rkep(ler that they are a pain to work on. But it is doable. And the shop he linked has been a good source of obsolete parts. They have kept older drives for spares and that has gotten several of my old Servos going. Also, if you are handy at simple PC board repair, these older drives are quite simple. Electrical schematics are available from several online sources.

rke[pler · Jul 2, 2017

Jim S. said:
I agree with rkep(ler that they are a pain to work on.

Technically, I referred to the drive as "the spawn of the devil". Getting one apart is akin to living a Lovecraftian nightmare, putting it back together is a full scale battle with the Old Ones. Really, pay someone else to do it.

Fixing the drive board is trivial. Mid-70's scr drive, you could diagnose things with a Simpson 260.

mdj21 · Jul 3, 2017

rke[pler said:
Mid-70's scr drive, you could diagnose things with a Simpson 260.

That's funny. I'll have to grab my grandfather's old Simpson 260 off of the shelf and do just that.

HWElecRepair · Jul 3, 2017

The Servo 80 uses the same parts as the Servo 140. If you wanna know the specs between the two of them, you can see them here.

14/15 Power Feeds

Jon
H&W Machine Repair

mdj21 · Jul 5, 2017

Someone beat me to it. Oh well.

Sounds like I should keep my eye out for a 150 to work on anyway.

Thanks for the opinions.

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