Ford 4500 Swing Slop

[mscher]

We're revitializing a 67' Ford 4500 with the 755 back
hoe.

It going better, (fixed the bucket spool, bad o-ring) but when we swing the arm, it does not have any good positive stop. The arm want to keep moving, overswinging a foot or so before it stops. right now it almost has to be "nursed" to get it stopped, where you want it.

The pivot bushings are worn, but I would think they would not cause this amount of swing excess.

Would they?

Since it uses the two cylinders and swing chain, is there something that can be tightened there? How about the spool control?

Any input appreciated.

 

[rbh]

Re: Ford 4500 Swing Slop

If its like ours, you look for two things, air in the cylinder (gets compressed and keeps swinging) or like you say the spool control, O-rings are shot.

replace brass bushings with brass, dont go hardened steel bushings or the pins will get worn, learned that one the expensive way, OUCH!!!!!!!!!!!
More than a 128TH'' of movement will oblong out the holes.
(ok 128th'' is kinda anal, but less slop at the pin the better)