Farm Equipment - 7045 brakes ?

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7045 brakes ?

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=34227
Printed Date: 31 Aug 2025 at 9:26pm
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Topic: 7045 brakes ?

Posted By: XT in pa
Subject: 7045 brakes ?
Date Posted: 20 Jul 2011 at 4:11pm

the brakes have been slowly going away ? is there a place to bleed them or do they need rebuilt ?

Shawn

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190XT,D17and 7045

Replies:

Posted By: DrAllis
Date Posted: 20 Jul 2011 at 8:05pm

What do you mean by "going away"?...no stopping power with the pedals staying up where they belong?... or pedals falling down towards the floor when you apply them??

Posted By: XT in pa
Date Posted: 21 Jul 2011 at 9:30am

they go down to far and only the left one will slow ya down but will not lock up. they have been getting worse since i drained the diff to fix the pto. the right one dont do anything at all .

Shawn

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190XT,D17and 7045

Posted By: DrAllis
Date Posted: 21 Jul 2011 at 11:50am

So, if you put the tractor in low gear and make a hard left or right turn and then engage the diff lock....does it work???....does the PTO pull a load?? does it stop when you shut it off?? do all the hydraulics work?? like lift a disc or a round bale of hay on the 3 pt. There is an inlet orifice on the wheel brake valve that could be plugged and all other hydraulic functions would work normally.

Posted By: XT in pa
Date Posted: 21 Jul 2011 at 1:31pm

Dr. the only thing that dont work is the brakes. i used it to mow with a disc bine on tuesday and raked today with it everything else works except the brakes. it feels like they need bled like in a truck just after you put new pads on they go down all the way until you pump them up,only they dont get any better when ya pump the peddels.

Shawn

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190XT,D17and 7045

Posted By: DrAllis
Date Posted: 21 Jul 2011 at 4:21pm

Make sure the inlet fitting/orifice on the brake valve is open. While you're in the dash area, remove the two lines on the brake valve that go to the brake pistons and cap them with a JIC cap....if the pedals pump up good then, you have a bad leak inside the rearend....maybe a missing or failed O-ring where the diff lock valve bolts onto the rearend. Those brakes require no bleeding.