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Gantry binding up

Jimi

New member
Hi. I have a WW 2 that binds up so badly on its way home that it will raise the follower wheel off of the rail. This happens at the same spot each time and it happens on the passenger side. It's like the passenger side gets so far ahead of the drivers side that it creates a bind. This does not occur in reverse. I have replaced both wheels and bearings on the passenger side. The wheels and bearings I took off appear to be fine. The wheels and bearings on the driver side also appear to be in good working order. I have replaced the bearings on the gantry that attach the articulated arm to the wall. I am lost and in need of some insight and suggestions. Thanks in advance.
 
When you change one drive wheel you usually have to change the other because they rotate at the same RPM. If one is smaller due to wear the machine travels faster on one side than the other. Check your boom bearings on both ends for binding. Check your drive wheels to make sure they are rotating at the same pace. You could jack the unit up, mark the wheels, and run the motors.
 
You did not say if you have changed drive motors lately, if so might check rpm on motor to make their are the same.
 
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