D15 Hydraulic Lift Pump Rebuild

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   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.

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rgbare Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 22 Apr 2012 Location: Seale, AL Points: 2	Post Options Post Reply Quote rgbare Report Post Thanks(0) Quote Reply Topic: D15 Hydraulic Lift Pump Rebuild 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.

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