Pin Pallet Repair

tracerjack

NAWCC Member
Jun 6, 2016
1,627
226
63
Lodi, CA
Country
Region
This pin pallet is from a Schatz midget. One pin is broken off. Having never done this procedure before, I believe my first step is to dissolve the pin fragment with an alum solution. (I will check the archives for the solution strength.) My question is do I have to remove the pallet from the arbor, or can I figure out some way to suspend only the broken side of the pallet in the solution and still be successful?
schatz pin pallet.jpg
 

Wayne A

NAWCC Member
Sep 24, 2019
604
97
28
Country
Region
I done a few of these, just mixed it as strong as possible even used vinegar to kick it up a notch. Used a sloldering helper holder that ends in alligator clips to hold the anchor and small vice grips to hold the all plastic wire nut I used for a alum tank. Have to refill the wire nut a few times to keep the level contacting the pin socket.

20200310_184106.jpg 20210221_111530.jpg
 
  • Like
Reactions: MuseChaser

sjaffe

Registered User
Dec 25, 2012
459
7
18
Santa Rosa,CA
Country
Region
I would suggest trying to remove it with a punch (improvised with some fine music wire). Much simpler solution if it will work. That is how I've always done it.
 

Wayne A

NAWCC Member
Sep 24, 2019
604
97
28
Country
Region
I would suggest trying to remove it with a punch (improvised with some fine music wire). Much simpler solution if it will work. That is how I've always done it.
The pins sockets on the Jum7 are just under 10 thousandths so thats gonna be one tiny punch!
 

tracerjack

NAWCC Member
Jun 6, 2016
1,627
226
63
Lodi, CA
Country
Region
Thank you, Wayne A, for the advice on how to dissolve the pin fragment. I was so hoping I could do it without having to remove the pallet. I did try punching it with a fine sewing needle that was near in size of the pallet, but that fragment wasn't going anywhere.
 

Wayne A

NAWCC Member
Sep 24, 2019
604
97
28
Country
Region
Anytime, also the jum/7 pallets are pressed in. I sand down the tip a half thousandth of the 10thou beading needle, then heat the brass with clean soldering iron, then freeze spray the pin just before quickly pushing it in. When I've pressed them in like this they go in with a audible squeak.
 

tracerjack

NAWCC Member
Jun 6, 2016
1,627
226
63
Lodi, CA
Country
Region
As others have noted before me, the alum worked perfectly. The stub was mostly gone after 24 hours, but it took another day for me to see light through the hole. My finest beading needle is too thick at .35 mm, so I am on the hunt for the proper size .25 mm. If I am unsuccessful, I see some sanding ahead of me.
 

Wayne A

NAWCC Member
Sep 24, 2019
604
97
28
Country
Region
Excellent!

Heres the beading needles I use for Jum/7's, there 10 thousandths.

20191107_165033.jpg
 

tracerjack

NAWCC Member
Jun 6, 2016
1,627
226
63
Lodi, CA
Country
Region
I’ve gotten John James needles before for actually sewing. They are very well made. Now I know what number to order. Thanks again. Your help is so appreciated. I hated to see this one become spare parts when it had all its parts, except for that one little pin pallet.
 

Wayne A

NAWCC Member
Sep 24, 2019
604
97
28
Country
Region
Nicely done and I think the springy steel of those needles will be less prone to breaking. Still I always put a finger tip on the escape wheel when I adjust the time.
 

Similar threads

Forum statistics

Threads
164,703
Messages
1,432,887
Members
85,749
Latest member
AthenaDee
Encyclopedia Pages
1,101
Total wiki contributions
2,863
Last edit
Rockford's early high grade movements by Greg Frauenhoff