Victorian Sweatshop Forum
Sign up Calendar Latest Topics
 
 
 


Reply
  Author   Comment  
mike509

Avatar / Picture

Junior Member
Registered:
Posts: 9
Reply with quote  #1 

Hello all - I found this nice White 764 at a thrift yesterday for $9.99 ($4.99 after my 'senior' discount).  [wink]   Came with a carrying case and thread (nothing else).

This has been on my 'want' list for a long time - so I was pretty thrilled.

Question:  when I was breaking it down for a clean up - I noticed this nylon gear (assume it's nylon)?  It appears to be cracked - right across the screw. It ran fine during my test run.  Imagine this will eventually break down/apart completely at some point?  Also - I thought / read that nylon gears were NOT supposed to be greased?  Was planning to clean all this out and replace with Tri-Flow grease, but is it ok to grease nylon?

Thanks in advance for any advice/comments!

Mike
White 764 - 3.jpg  White 764 - 2.jpg  White 764 - 1.jpg 


0
Chillin in NC

Avatar / Picture

Moderator
Registered:
Posts: 255
Reply with quote  #2 
Mike, that's a good looking White.  I've heard the same about greasing nylon / plastic gears.  The reason being that grease will attract / collect dirt & grime that could potentially damage the gears.  But I believe it is more important to consider the application.  In your case the gears are in an enclosed housing that won't allow a lot of dirt in.  Looking at the color of the grease that in there now other than being old it doesn't look particularly dirty.  Years ago my bride worked in a Singer Center.  The owner used liberal and copious of Vaseline when he repaired and tuned up machines.  Never seemed to have a problem with it.

To grease or not to grease (I would) may be better answered here: https://www.machinedesign.com/motors-drives/article/21831576/engineering-essentials-lubrication-tips-for-plastic-gears-and-more-part-2

Hope this help!

Regards,  Dan

__________________
Regards,  Dan
0
Jim/Steelsewing

Avatar / Picture

Senior Member
Registered:
Posts: 2,389
Reply with quote  #3 
Those half-moon gears... I tell ya. It's 'almost' as if one company made the lot of them, but, unfortunately not so. If the little crack is freaking you out, I'd save it and epoxy it and perhaps replace it with a new one. Can find those here for nearly 19 bucks... (under gear/white/764) http://www.sewingmachineparts.net/pricelist.html
__________________
It's a beautiful day in the neighborhood.
There is grace within forgiveness, but it's so hard for me to find - Ben Gibbard
My adventures with VSM's: http://steelsewing.blogspot.com
*QuiltnNan and asshat may be synonymous...
0
Chaly

Senior Member
Registered:
Posts: 896
Reply with quote  #4 
Quote:
Originally Posted by Chillin in NC
... Years ago my bride worked in a Singer Center.  The owner used liberal and copious of Vaseline when he repaired and tuned up machines.  Never seemed to have a problem with it.

Regards,  Dan


How interesting that your wife has tales of a Singer Center.  I remember them some vaguely. It would be great if you could share some more Singer Center stories with us.
0
mike509

Avatar / Picture

Junior Member
Registered:
Posts: 9
Reply with quote  #5 
Thank you Dan - yes, I believe that's where I read that about 'no grease' - was in some of the Singer forums. Particularly having to do with the Touch & Sews/Stylists models that use nylon gears. Also thanks for the interesting article link. I think I'll go ahead and clean/replace it with some Tri-flow.  [wink]

- Mike

Quote:
Originally Posted by Chillin in NC
Mike, that's a good looking White.  I've heard the same about greasing nylon / plastic gears.  The reason being that grease will attract / collect dirt & grime that could potentially damage the gears.  But I believe it is more important to consider the application.  In your case the gears are in an enclosed housing that won't allow a lot of dirt in.  Looking at the color of the grease that in there now other than being old it doesn't look particularly dirty.  Years ago my bride worked in a Singer Center.  The owner used liberal and copious of Vaseline when he repaired and tuned up machines.  Never seemed to have a problem with it.

To grease or not to grease (I would) may be better answered here: https://www.machinedesign.com/motors-drives/article/21831576/engineering-essentials-lubrication-tips-for-plastic-gears-and-more-part-2

Hope this help!

Regards,  Dan
0
mike509

Avatar / Picture

Junior Member
Registered:
Posts: 9
Reply with quote  #6 
Thanks Jim - appreciate the parts link!  Good to know there is a source out there for them - among other items!  No, the crack doesn't bother me.  Haven't tackled any gear replacements yet  - but might invest in one, just to learn.  [wink]

- Mike

Quote:
Originally Posted by Jim/Steelsewing
Those half-moon gears... I tell ya. It's 'almost' as if one company made the lot of them, but, unfortunately not so. If the little crack is freaking you out, I'd save it and epoxy it and perhaps replace it with a new one. Can find those here for nearly 19 bucks... (under gear/white/764) http://www.sewingmachineparts.net/pricelist.html
0
Chillin in NC

Avatar / Picture

Moderator
Registered:
Posts: 255
Reply with quote  #7 
Quote:
Originally Posted by mike509
I think I'll go ahead and clean/replace it with some Tri-flow.



I think you're on the right track Mike!

__________________
Regards,  Dan
0
Inezzme

Junior Member
Registered:
Posts: 12
Reply with quote  #8 
Are tri-flow and white lithium grease comparable?
0
mike509

Avatar / Picture

Junior Member
Registered:
Posts: 9
Reply with quote  #9 
As luck would have it - after I got her completely cleaned up, fresh oil/grease, I threaded it up but noticed it wouldn't catch the bobbin thread. After investigation, I removed the gearbox cover and found this. It must have broken when I was running (I noticed a slight 'knocking' but after a few hard runs, that knocking disappeared - after breaking).  [smile]

Has anyone replaced this gear before? I doubt - looks like the horizontal shaft to the right would need to be removed?

I did see a service manual available:
https://www.sewingpartsonline.com/service-manual-white-764.aspx
I emailed them to see if this gear adjustment/replacement was covered before I ordered.

And, the actual gear (thanks to Jim)!
http://www.sewingmachineparts.net/pricelist.html

Thanks in advance!
- Mike 

White 764 - 1 (2).jpg
0
Previous Topic | Next Topic
Print
Reply

Quick Navigation:

Easily create a Forum Website with Website Toolbox.