Farm Equipment - 4W-305 Question

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4W-305 Question

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=200792
Printed Date: 01 Dec 2024 at 4:34am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 4W-305 Question

Posted By: Dale
Subject: 4W-305 Question
Date Posted: 08 Apr 2024 at 8:13pm

My 4W-305 is a hard shifter-maybe 60% of the time.The other 40% works like it should. Tried different shifting patterns to see if there's a solution or if I can identify when it gets difficult. Tried different clutching. Full to the floor (into the transmission brake zone) and then clutching outside the zone. Nothing pops up as the problem or the solution. I'm stumped. If it's the clutch I haven't even checked if replacements are available. Rather it not be a worn clutch problem -LoL

What could the possible causes be?

Replies:

Posted By: tbran
Date Posted: 08 Apr 2024 at 8:43pm

define 'hard shifter' grinding ? gear on gear and not slipping in ? can't move the shifter ? will not all the way in gear ?

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When told "it's not the money,it's the principle", remember, it's always the money..

Posted By: Dale
Date Posted: 09 Apr 2024 at 6:01am

tbran,

All of the above but at different times. Turn the machine off and it goes into the gears and range quite nicely. Often it's the best way to get it going:-turn it off, put it in gear, start it and go. The one variable that seems to "sometimes" make a difference is when the tractor is in use and well warmed up. But can't say this is anywhere close to all the time.

Posted By: SteveM C/IL
Date Posted: 09 Apr 2024 at 8:47am

I say it's adjustment. Follow that procedure including the pressure gauge. You will never shift up without clashing while moving.

Posted By: tbran
Date Posted: 09 Apr 2024 at 11:46am

We usually find since there are no syncros in the tranny one pushes the pedal into the brake mode, then while holding shift lever in the gear one wants wants, let out on the clutch and as the shaft moves it can best be put in gear then.

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When told "it's not the money,it's the principle", remember, it's always the money..

Posted By: Dale
Date Posted: 09 Apr 2024 at 5:15pm

Thanks Steve and tbran

Going to try both of your suggestions. I'm assuming the adjustment procedure can be found in the Service manual?

Posted By: Amos
Date Posted: 09 Apr 2024 at 5:39pm

Dale, have not run into your issue with my 305, however, you describe my 7580 issues pretty much to a T, i replaced the clutch/power director cable, helped kind of. But when i replaced the bushings and the worn shaft in the power director valve mechanism, oh boy! I have new a tractor. works like it should and every time. Might look and see if your 305 has worn out bushings in it

Posted By: bigal121892
Date Posted: 09 Apr 2024 at 6:43pm

I would assume it has the bushings, but was unable to find them in a parts diagram. If there are bushings, replacing them will make it shift like a new tractor.