Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Attention Forum Users: On the 28th of December 2023 at 9:00am Central Time, we will be taking the forums down for maintenance while we prepare the new forums for your use. Please click here for more information.

John Deere Tractors Discussion Forum
:

Tips on soundproofing older cabs

Welcome Guest, Log in or Register
Author 
GJS

02-08-2005 17:16:59




Report to Moderator

We have a JD 7700 turbo combine and I will need to do some work on the inside of the cab before the next harvest. I found a kit for the insulation but was wondering if anyone has any tips to quiet it down some. That is the only complaint about it. It's got a cold air conditioner just a little noisy. I know it may be hard with the engine next door but I appreciate any suggestions.




[Log in to Reply]   [No Email]
960

02-09-2005 13:23:34




Report to Moderator
 Re: Tips on soundproofing older cabs in reply to GJS, 02-08-2005 17:16:59  
I know your situation. I had a 227 picker then a 74 4400 then a 79 6620 and now a 90 9500 and naturally each was a major step above the previous in operator comfort. The 4400 got so noisy I could not stand it and traded it mainly for that reason. What I found the main sound deadner on the 6620 to be is the foil type heat sheild insulation used as firewall insulation between the cab wall and engine compartment. Rodents and time took thier toll. As in another post make sure all linkage and harness boots are in place. When mine got louder I double layered the insulation on firewall and it helped greatly. My father-in-law still has a 7700 that is still an impressive machine today. Good luck.

[Log in to Reply]  [No Email]
G./MAN

02-09-2005 07:32:23




Report to Moderator
 Re: Tips on soundproofing older cabs in reply to GJS, 02-08-2005 17:16:59  
John and Ray are exactly right - getting rid of noise that is "transmitted" into the cab from outside is the most important step. Any metal-to-metal contact is going to increase noise.



[Log in to Reply]  [No Email]
R. John Johnson

02-08-2005 21:10:46




Report to Moderator
 Re: Tips on soundproofing older cabs in reply to GJS, 02-08-2005 17:16:59  
Sound proofing a cab is a two stage process. First you must isolate the cab from chassis borne vibration (noise). This is the job of the rubber isolators. If some component contacts the frame and the cab in a manner that can transmit vibrational energy it will defeat the job of the isolators. Make sure there is no such object.

Ray gave you good advise. If a component mounted solid to the cab is vibrating, the isolators don't mean a thing.

The second stage is to line the cab with sound absorbing material. The lining in the cab serves two purposes. First it closes up small openings. A small hole will let in a lot of noise. Think about how much louder the cab gets when you crack the door. The second job of the lining is to absorb structure and air borne vibration. Foam that has deteriorated will not be able to do this very well.

The majority of silencing a cab is done by isolating it from the structure. The lining cannot do it by itself.

I hope this helps

John

[Log in to Reply]  [No Email]
RayP(MI)

02-08-2005 18:05:51




Report to Moderator
 Re: Tips on soundproofing older cabs in reply to GJS, 02-08-2005 17:16:59  
Before you do anything, inspect cab thoroughly for loose parts. Tighten or replace all loose bolts - don't forget lock washers/or other methods of fastening. Check all metal joints for broken welds, etc - fix as necessary. See that cab is firmly mounted and Fastened to chassis of machine. Loose parts vibrating can be worse than any outside sounds creeping in to the cab.



[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


TRACTOR PARTS TRACTOR MANUALS
We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums


Copyright © 1997-2023 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy