Farm Equipment - D15 Hydraulic Lift Pump Rebuild

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D15 Hydraulic Lift Pump Rebuild

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=49410
Printed Date: 26 Aug 2025 at 12:41am
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Topic: D15 Hydraulic Lift Pump Rebuild

Posted By: rgbare
Subject: D15 Hydraulic Lift Pump Rebuild
Date Posted: 22 Apr 2012 at 12:11pm

I am currently rebuilding the lift pump in a D-15 Series II. The question is: how do you remove the valve seats from the pump body. There are 5 of them. All are what I call "Blind Pulls". The manual says to tap them and use a snatch type puller to remove them; however, the seats are hardend steel and can not be drilled or tapped. The logest bolt one can insert into the seat from the 7/8" diameter tube which runs front to back of the body is a 10-24x1" long. That does not make for good "snatching" or pulling. These seats have been in the tractor since 1965 and needs to be renewed. Any suggestions will be greatly appreciated.