Yesterday's Tractor Co. Shop Now
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
Classified Ads
Photo Ads
Tractor Parts

Discussion Forums
Project Journals
Tractor Town
Your Stories
Show & Pull Guide
Events Calendar
Hauling Schedule

Tractor Photos
Implement Photos
Vintage Photos
Help Identify
Parts & Pieces
Stuck & Troubled
Vintage Ads
Community Album
Photo Ad Archives

Research & Info
Tractor Registry
Tip of the Day
Safety Cartoons
Tractor Values
Serial Numbers
Tune-Up Guide
Paint Codes
List Prices
Production Nbrs
Tune-Up Specs
Torque Values
3-Point Specs

Tractor Games
Just For Kids
Virtual Show
Museum Guide
Memorial Page
Feedback Form

Yesterday's Tractors Facebook Page

Related Sites
Tractor Shed
Ford 8N/9N Club
Today's Tractors
Garden Tractors
Classic Trucks
Kountry Life
Crawlers, Dozers, Loaders & Backhoes Discussion Forum

JCB Clutch issues

Welcome Guest, Log in or Register
Author  [Modern View]

05-11-2012 06:03:13

Report to Moderator

I have a JCB 1400B extenda hoe with a 4.236 Perkins and shuttle reverser trans. machine # 317927/7. Two questions; first I get amomentary buzz when I shift the machine into reverse,the filter clean, fluid changed and full no apparent slipping or trans problems, any ideas about the buzz? Second, just lately the clutch stopped disengaging can"t shift between gears on the fly and macine will continue to go forward or reverse with the clutch in. the linkage is good the rod moves in and out of the trans ok, any ideas? I have a shop manual, but no gauges to check trans, I"m handy with wrenches and can fix about anything, if anyone has a diagnosis I"d appreciate it moneys tight so if I can fix it myself I will. Thanks in advance for any help.

[Log in to Reply]   [No Email]

05-11-2012 14:42:02

Report to Moderator
 Re: JCB Clutch issues in reply to JCBBob, 05-11-2012 06:03:13  
I"m in the UK and am familar with JCB"s but there is a problem export machines are badged different than the ones for the home market,the machine I think you have would be an early 3CX here and there is as many models of that machine as days in a month,the mechanical clutch cut out is the only clue I have as to what you got,the machine would have a Borg Warner Velvet Shift shuttle,the F/R is cable operated,the clutch dump valve has a mechanical linkage,there is adjustment on the end of the valve that should be set to .010" between the adjustment bolt and the lever that pushes it,when the valve is pushed in oil that is holding the clutch pack compressed is released and the clutch disengages,check that clearance and make sure the linkage is pushing the valve in all the way,for the valve adjustment get a second person to move the F/R lever and you will see the control valve lever moving,in the centre is the adjusting bolt,you need two 7/16 wrenches,loosen the jam nut and turn the bolt till you have the .010",about the buzz it must be a bare wire grounding when you move the lever,look in that area,move the loom a bit.
Good luck

[Log in to Reply]  [No Email]

05-11-2012 11:30:00

Report to Moderator
 Re: JCB Clutch issues in reply to JCBBob, 05-11-2012 06:03:13  
i'm not familar with your machine at all but if it was anything else and had a friction type main clutch,i'd say clutch needs adjusting.

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

Hop to:

Fast Shipping!  Most of our stocked parts ship within 24 hours (M-Th). Expedited shipping available, just call! Most prices for parts and manuals are below our competitors. Compare our super low shipping rates! We have the parts you need to repair your tractor. We are a company you can trust and have generous return policies. Shop Online Today or call our friendly sales staff toll free (800) 853-2651. [ About Us ]

Home  |  Forums

Copyright © 1997-2018 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