Farm Equipment - transaxle lube Model B

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transaxle lube Model B

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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=30108
Printed Date: 04 Nov 2025 at 8:26am
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Topic: transaxle lube Model B

Posted By: Scott in MA
Subject: transaxle lube Model B
Date Posted: 02 May 2011 at 10:47am

Hi:

My Model B vintage owner's manual specifies 20 weight oil for the transmission/axle. I can't find this weight anywhere. Is there a modern equivalent that will work. Also - here's the dumb question. Do I need the PTO engaged for the hydraulics to work? They don't work otherwise and I wonder if this is by design or something is wrong with my tractor.

The reason I ask is this - I have a Woods belly mower. If the PTO is engaged and the mower is spinning, the long belt will come off if I try to raise the mower. It would be nice if I could raise the mower without losing the belt. The belt is properly adjusted but I can't raise the mower ever unless I want to constantly be on my hand and knees on the wet grass.

Replies:

Posted By: JohnCinMd
Date Posted: 02 May 2011 at 10:57am

I can raise the mower on my B without the belt coming off, maybe your belt could be a wee bit tighter.

Posted By: pumpkin man
Date Posted: 02 May 2011 at 11:13am

you can use any motor oil [10/30 -15/40-or uinv. trans oil] DO NOT USE GEAR LUBE! I have a woods 306 on my 39 B the belt does not come off when rasing it . when I did have that problem .a new belt solved it yes the PTO has to be in gear thats what runs the pump . if you dont have a owners manual for the mower i will be glad to copy mine send a p. m. with adrs.