Professional Band Instrument Repair Technician Logo

Featured Member

ID: josepcaramel
Since: 10/29/2009
From: antella España
Rating: (0.0)

Featured Picture

Google Ads

  Active TopicsActive Topics  Display List of Forum MembersMemberlist  Search The ForumSearch  HelpHelp
Piston Instruments
 PROBIRT Forums » Piston Instruments
Subject Topic: STUCK slide Post ReplyPost New Topic
Author
Message << Prev Topic | Next Topic >>
PeterWillis
Technician
Technician


Joined: August.01.05
Location: USA
Online Status: Offline
Posts: 4
Posted: August.17.05 at 6:40pm | IP Logged Quote PeterWillis

I've got a Yamaha 6335 trumpet in the shop - all slides frozen, all pistons frozen. I got everything out and moving except the extremely stuck main slide - the gunk that came out of this horn rivals any neglected school Bundy or Kris-Kratt I've ever seen. I've tried penetrating oil, heat, Ferree's slide pliers, etc.... ended up with the loose side coming out and the crook coming off the stuck side - surprise. Tried soldering in the old mouthpiece, but that just started to break the solder joint on the bell brace. I have a feeling of where I'm ending up with this trumpet, but I'm just curious what others have done for such ridiculously stuck slides.
Back to Top View PeterWillis's Profile Search for other posts by PeterWillis Visit PeterWillis's Homepage
 
bobbaier
Technician
Technician


Joined: February.07.05
Location: USA
Online Status: Offline
Posts: 30
Posted: August.18.05 at 3:55am | IP Logged Quote bobbaier

There are a couple of methods I fall back on in extreme cases. If the braces are already loose, you may as well take the slide tubes off and solder a plug in the other end, put that in a vise and grab the soldered in mouthpiece with your pliers. If the slide is all the way in, be careful not to solder the tubes together. I can't recall this happening in recent years, but if it seems that the tubing may twist, unsolder everything and let it soak immersed in penetrating oil for a day or two and resolder and pull.

What's easier and works almost every time for the top tuning slide tube is to solder a solid plug in the ferrule end. Take a steel rod (brass will work but tends to mushroom at the ends) that will fit through the mouthpiece receiver and protrude above the receiver several inches. Holding the leadpipe below the receiver, hit the rod with a hammer (easy, now) to drive out the tube. This puts no stress on the braces.

Cautions: If you've been agressive in your oiling and heating, the outer slide could come unsoldered from the leadpipe (see the first method) or if you don't have a strong joint at the ferrule end, your plug could come unsoldered so it's a good idea to wrap a towel around the bell to avoid an unwanted dent. It's important that the plug you solder in have a flat bottom so the rod cannot get off to the side and damage the tubes.

One other method for slides in general--when heating and oiling, if you get the slide pretty hot, but before solder melting time, quench the tube with a wet rag. It helps to draw the penetrating oil in and the contraction may help loosen the tubes. A rag works better for me than a spray bottle.

I like PB Blaster in a needle oiler. Kroil (sold by Kraus and Ferree's under their own labels) is also good. Time is your friend and I rarely have to unsolder anything if I can take a week or so to heat and oil.

bob
Back to Top View bobbaier's Profile Search for other posts by bobbaier
 
admin
Admin Group
Admin Group
Avatar

Joined: March.10.05
Location: USA
Online Status: Offline
Posts: 304
Posted: August.19.05 at 9:16am | IP Logged Quote admin

<<Take a steel rod (brass will work but tends to mushroom at the ends) that will fit through the mouthpiece receiver and protrude above the receiver several inches. Holding the leadpipe below the receiver, hit the rod with a hammer (easy, now) to drive out the tube. This puts no stress on the braces. >>

Never thought of doing that! Thanks for the tip, Bob!

Another thing you might try is to put the horn in the freezer for an hour or two. Take it out and immediately heat and oil the outside tube of the slide that is stuck. Sometimes the expanding of the contracted, cold metal is enough to break up the gunk and allow the penetrating oil to flow down in and do its job.

Mickey
 
Back to Top View admin's Profile Search for other posts by admin Visit admin's Homepage
 
RobertWhite
Technician
Technician


Joined: January.19.05
Location: USA
Online Status: Offline
Posts: 3
Posted: September.22.07 at 12:03pm | IP Logged Quote RobertWhite

Try this...fill a container with enough cold water to completely submerge the stuck slide. Heat the slide as much as possible without unsoldering it, then plunge it into the water. The magic is in the steam that is forced into the slide. Empty out as much water as possible and repeat the process. After three or four plunges try and gently drive the slide out with slide pliers and hammer. If not loose yet, repeat process. Trust me, I have had some rediculously frozen slides and this method has always worked. Of course, spot laquering will more than likely be required on brass, but I have never had to do anything to silver but polish it back to normal.
I hope this helps.

Bob
Back to Top View RobertWhite's Profile Search for other posts by RobertWhite
 

If you wish to post a reply to this topic you must first login
If you are not already registered you must first register

  Post ReplyPost New Topic
Printable version Printable version

Forum Jump
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

Powered by Web Wiz Forums version 7.9
Copyright ©2001-2004 Web Wiz Guide

This page was generated in 0.0938 seconds.

Login

Login to view contents and post messages and reviews
Username:
Password:

New Member Registration
Retrieve Lost Password

Shout Box

  • (10/9 17:13) ChrisHarnett: Doesn't seem very promising
  • (10/6 12:46) DriverDrobina: Is this site still active?
  • (10/6 12:45) DriverDrobina: I have the same concern
  • (6/2 17:51) Wailinfree: is this site still active?
  • (6/2 17:51) Wailinfree: is this site still active?
  • (4/29 12:46) BENSCHILDGEN: Cleaning snakes nowdays SUCK!
  • (12/4 22:44) dparker: Hey Brent!
  • (11/26 20:46) crousfrench: I'm back. Did you miss me?
  • (10/9 7:18) BENSCHILDGEN: What's going on out there?
  • (6/1 18:53) dparker: dparker@ciomit.com www.ciomit.com
  • (6/1 18:53) dparker: or we can do an online meeting
  • (6/1 18:53) dparker: It can be dangerous. If you could send some pic
  • (5/25 5:17) BENSCHILDGEN: It seemed as if it was silver brazed together
  • (5/25 5:17) BENSCHILDGEN: It seemed as if it was silver brazed together
  • (5/25 5:9) BENSCHILDGEN: I had an old tuba that I could not get it apart.
  • (5/25 5:8) BENSCHILDGEN: I just do not know much about the whole mechainsm
  • (5/24 14:2) dparker: How can I help with the clock springs?
  • (5/24 14:2) dparker: How can I help with the clock springs?
  • (5/18 5:9) BENSCHILDGEN: MAYBE THIS SITE SHOULD BE LINKED TO FACEBOOK
  • (4/26 7:20) BENSCHILDGEN: I need info on tubas with clocksprings for levers
  • (4/4 8:34) dparker: Indeed! I will be posting more soon!ore soon!
  • (3/30 11:36) BENSCHILDGEN: Let's try to get this site flowing again
  • (7/6 19:46) Krch: My favorite is uses for electric soldering guns!
  • (6/13 9:0) crousfrench: I still enjoy watching the videos over and over
  • (6/13 8:59) crousfrench: I haven't seen anything new in awhile, but
  • (5/31 21:36) Krch: articles...articles
SmartFlix.com How-To DVD Rental