52 8n hydraulic touch control lever

Anonymous-0

Well-known Member
Hello, i have done some searching and already suspect my
cam follower pin is bad, but wkndering if something else is at
issue too and would like to have all fhe parts in hand before i rip
it apart.

Problem started when using my back blade to plow snow...all
of a sudden the lift stopped lowering. Playing with the lever did
nothing and through some fluke i got it to lower once more.
one more pass and i went to lift the blade. It lifted slow and only
came up halfway. Would not go back down at all. Stayed up
over night for several days. Pulled the side cover and the lift
control arm appears to go up and dow. But not back and forth.

If i manually push the lever back it lowers. Then if you move
the lever to the full up position, it raises halfway unledd i lightly
pry the internal lever forward. Do that and it raises fully and will
also lower on its own with the touch control. If, on the way down
you move the lever to raise, or stop it lowering, it will stop then
not lower the rest of the way until i manually push the internal
lever backward.

Is this all follower pin? Or do I have two issues at play?

Oil looked ok when i drained it and I changed it last summer.
Tractor stays in the barn when not in use.
 
Sticking control valve.

If there is a trace of moisture in the oil it can cause it when it's very cold.

Zane
 
Thanks Zane,

If that is it, should i even bother pulling the top cover right now? I figured something was up with the upper end of the lever where it connects to the external touch control and quadrant as it only moves up and down rather than fore and aft when moving from lift to lower...Or am I misunderstanding and have both issues of the sticking control valve and the cam follower?

Thanks again, wierd thing is that it acted fine when the hydraulics were cold (slow as usual), and acted up once i ran it for a half an hour and the lift was moving more quickly...I assume something broke free and clogged the valve then.
 
(quoted from post at 10:26:09 01/02/14) Thanks Zane,

If that is it, should i even bother pulling the top cover right now? I figured something was up with the upper end of the lever where it connects to the external touch control and quadrant as it only moves up and down rather than fore and aft when moving from lift to lower...Or am I misunderstanding and have both issues of the sticking control valve and the cam follower?

Thanks again, wierd thing is that it acted fine when the hydraulics were cold (slow as usual), and acted up once i ran it for a half an hour and the lift was moving more quickly...I assume something broke free and clogged the valve then.
ane will take care of you, but I like pictures, so here you see that the control arm rides on the right (red 84) end of shaft (eccentric) such that the top of control arm will move fore/aft when shaft rotates AND it can not help but move up/down by some small amount.
 
Gotcha...i see how this works. Thanks for the visual, my
concern was that it was only moving up and down...makes
sense though if the control valve is sticking
 

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