Farm Equipment - 190 DRIVE TRAIN KNOCK

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190 DRIVE TRAIN KNOCK

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=132173
Printed Date: 02 Jun 2025 at 10:57pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 190 DRIVE TRAIN KNOCK

Posted By: SIMPLICITY
Subject: 190 DRIVE TRAIN KNOCK
Date Posted: 03 Dec 2016 at 1:10pm

HELLO
I'M AT A LOSS WITH A KNOCK THAT I'M GETTING ON A 190XT. WITH THE TRACTOR IN GEAR AND THE POWER DIRECTOR IN THE NEUTRAL POSITION AND THE BRAKE PRESSED I'M GETTING A HORRENDOUS KNOCK THAT SOUNDS LIKE LIKE ITS COMING FROM IN FRONT OF THE THE TORQUE TUBE, I CHECKED THE POWER DIRECTOR FROM THE INSPECTION HOLE ALL THE PLATES ARE GOOD(I JUST REPLACED THE COMPLETE P/D CLUTCH ) .
I ALSO RELEASED THE ENGINE CLUTCH AND I GRABBED THE INPUT SHAFT THROUGH THE ROUND HOLE ON THE TORQUE TUBE AND HELD THE POWER DIRECTOR CLUTCH AND TURN THE SHAFT AND I'M GETTING ABOUT 3/4 TO 1" OF PLAY IN THE SHAFT , I'M NOT SURE THAT I SHOULD HAVE THAT MUCH PLAY OR IF THAT IS NORMAL HELP HELP HELP THANKS

Replies:

Posted By: MACK
Date Posted: 03 Dec 2016 at 8:02pm

If engine was not running, you should be able to continue turning the shaft.

Sounds like you may have a bad tooth on a reduction gear. Pull the pan under reduction gears, might find a piece of tooth laying on screen. MACK

Posted By: joe
Date Posted: 03 Dec 2016 at 8:03pm

LETS START WITH GETTING RID OF THE CAPTIALS. REALLY MAKES PEOPLE THINK YOU'RE YELLING AT THEM. Now with that said, what happens if you begin to engage the PD into either low or high? The one thing I can think of is: How closely did you look at the clutch when you had it apart. If I'm understanding what you mean by 3/4" to 1" of play in the shaft properly, then I tend to think that the dampening springs in the clutch are broken, beaten up the housing, allowing all that play. On the power director side, the friction discs are splined to the input shaft, and the steels are splined to the clutch housing, the the input shaft is going to be able to rotate somewhat freely in there, if it weren't for being engaged into the clutch. If it's able to rotate that much, I'd tend to think the problem may be in the clutch. In a low load situation, such as you are describing, things may get to chucking, and making a horrendous noise.