640 lift issues

grandpa Love

Well-known Member
Well.......let me start by saying
the lift was working fine,but the
touch control lever was so hard to
move that we broke the friction
plate. Thinking we had to take
lift cover off to take the
quadrant off we did so. We ordered
a new gasket. It came with a bunch
of O rings. Which 2 go in under
the cover? We couldn't tell,none
of em fit right. So we used old
ones. Put it all back together and
lift will not work. We bled air
out of pump on side of motor ,
nothing but fluid now. What am I
missing. It's back apart now.
a172938.jpg

a172939.jpg

a172940.jpg

a172942.jpg
 
I am weak on hydraulics but it looks like the adjustment might be off. Looking at your other picture with the screw driver in it the plunger(?) that connects to the Y yoke appears to be showing more threads. Could be the angle too.
 
Hey Hobo ,did I mention I'm a darn
good deck builder? Not so much on
mechanic stuff. Lol. So.....#114
on o rings? Good information in
those links. My best bet is let my
wife figure it out!! Thanks.
Kevin in Central AL
 

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